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As filed with the Securities and Exchange Commission on September 28, 2021.

Registration No. 333-

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM S-1
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933

Fluence Energy, Inc.

(Exact name of registrant as specified in its charter)

	Delaware			3690			87-1304612
	(State or other jurisdiction of incorporation or organization)			(Primary Standard Industrial Classification Code Number)			(I.R.S. Employer Identification No.)

4601 Fairfax Drive, Suite 600
Arlington, Virginia 22203
Telephone: (833) 358-3623

(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

Manuel Perez Dubuc
Chief Executive Officer
4601 Fairfax Drive, Suite 600
Arlington, Virginia 22203
Telephone: (833) 358-3623

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies to:

Senet S. Bischoff
Alison A. Haggerty
Latham & Watkins LLP
1271 Avenue of the Americas
New York, New York 10020
Telephone: (212) 906-1200
Fax: (212) 751-4864

Dennis Fehr
Chief Financial Officer
Francis A. Fuselier
General Counsel
4601 Fairfax Drive, Suite 600
Arlington, Virginia 22203
Telephone: (833) 358-3623

Alexander D. Lynch
Michael B. Hickey
Weil, Gotshal & Manges LLP
767 Fifth Avenue
New York, New York 10153
Telephone: (212) 310-8000
Fax: (212) 310-8007

APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: AS SOON AS PRACTICABLE AFTER THIS
REGISTRATION STATEMENT IS DECLARED EFFECTIVE.

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933 check the following box. ☐

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

	Large accelerated filer ☐			Accelerated filer ☐
	Non-accelerated filer ☒			Smaller reporting company ☐
				Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

CALCULATION OF REGISTRATION FEE


Title of Each Class of Securities to be Registered	Proposed Maximum Aggregate Offering Price(1)(2)	Amount of Registration Fee
Class A common stock, $0.01 par value per share	$100,000,000	$10,910.00

(1)

Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(o) under the Securities Act of 1933, as amended.

(2)

Includes the offering price of shares of Class A common stock that may be sold if the option to purchase additional shares of Class A common stock granted by the Registrant to the underwriters is executed.

The Registrant hereby amends this Registration Statement on such date or dates as may be necessary to delay its effective date until the Registrant shall file a further amendment which specifically states that this Registration Statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933, as amended or until the Registration Statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.

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The information in this preliminary prospectus is not complete and may be changed. These securities may not be sold until the registration statement filed with the Securities and Exchange Commission is effective. This preliminary prospectus is not an offer to sell nor does it seek an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.

Subject to completion, dated September 28, 2021.

Fluence Energy, Inc.

CLASS A COMMON STOCK

This is an initial public offering of shares of Class A common stock of Fluence Energy, Inc. We are selling shares of Class A common stock.

Prior to this offering, there has been no public market for the Class A common stock. It is currently estimated that the initial public offering price per share of Class A common stock will be between $ and $ . We have applied to list our Class A common stock on the Nasdaq Global Market under the symbol “FLNC.”

We will have three classes of common stock after this offering: Class A common stock, Class B-1 common stock and Class B-2 common stock. Each share of our Class A common stock entitles its holder to one vote per share, each share of our Class B-1 common stock entitles its holder to five votes per share and each share of our Class B-2 common stock entitles its holder to one vote per share on all matters presented to our stockholders generally. Immediately following the consummation of this offering, all of the outstanding shares of our Class B-1 common stock will be held by the Founders (as defined below), which will represent in the aggregate approximately % of the voting power of our outstanding common stock after this offering (or approximately % if the underwriters exercise in full their option to purchase additional shares).

This offering is being conducted through what is commonly referred to as an “Up-C” structure, which is often used by partnerships and limited liability companies undertaking an initial public offering. The Up-C approach provides the existing owners with the tax treatment of continuing to own interests in a pass-through structure and provides potential future tax benefits for both the public company and the existing owners when they ultimately redeem their pass-through interests for shares of Class A common stock or cash from the sale of newly issued shares of Class A common stock. We will be a holding company, and upon consummation of this offering and the application of the proceeds therefrom, our principal asset will consist of LLC Interests (as defined below) we purchase directly from Fluence Energy, LLC with the net proceeds from this offering and acquire indirectly from the Blocker Shareholder (as defined below), collectively representing an aggregate % economic interest in Fluence Energy, LLC. Of the remaining % economic interest in Fluence Energy, LLC, % will be owned by the Founders through their ownership of LLC Interests. Fluence Energy, LLC intends to use the net proceeds from the sale of LLC Interests to Fluence Energy, Inc. to repay all outstanding borrowings under our existing Line of Credit and the Promissory Notes (as defined below), and the remainder for working capital and other general corporate purposes.

Fluence Energy, Inc. will be the sole managing member of Fluence Energy, LLC. We will operate and control all the business and affairs of Fluence Energy, LLC and its direct and indirect subsidiaries and, through Fluence Energy, LLC and its direct and indirect subsidiaries, conduct our business.

Following this offering, we will be a “controlled company” within the meaning of the Nasdaq rules. See “Our Organizational Structure” and “Management—Controlled Company Exception.”

We are an “emerging growth company,” as defined in Section 2(a) of the Securities Act of 1933, as amended, or the Securities Act, and will be subject to reduced disclosure and public reporting requirements. This prospectus complies with the requirements that apply to an issuer that is an emerging growth company.

See “Risk Factors” beginning on page 25 to read about factors you should consider before buying shares of our Class A common stock.

Neither the Securities and Exchange Commission nor any other regulatory body has approved or disapproved of these securities or passed upon the accuracy or adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Per Share

Total

Initial public offering price

Underwriting discount(1)

Proceeds, before expenses, to Fluence Energy, Inc.

(1)

We have agreed to reimburse the underwriters for certain expenses in connection with this offering. See “Underwriting.”

At our request, the underwriters have reserved for sale at the initial public offering price per share up to % of the shares of Class A common stock offered by this prospectus for sale at the initial public offering price through a directed share program to certain individuals identified by management. See the section titled “Underwriting—Directed Share Program.”

The underwriters have the option to purchase up to an additional shares of Class A common stock from us at the initial price to public less the underwriting discount within 30 days of the date of this prospectus.

The underwriters expect to deliver the shares of Class A common stock against payment in New York, New York on , 2021.

(Lead bookrunners listed in alphabetical order by row)

	J.P. Morgan			Morgan Stanley
	Barclays			BofA Securities

Citigroup
Evercore ISI

Credit Suisse
HSBC

UBS Investment Bank
RBC Capital Markets

Co-Managers

Nomura
Seaport Global Securities

Baird
Penserra Securities LLC

Raymond James
Siebert Williams Shank

Prospectus dated , 2021.

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	Page
Basis of Presentation		ii
Trademarks		iii
Market and Industry Data		iv
Prospectus Summary		1
Risk Factors		25
Cautionary Note Regarding Forward-Looking Statements		66
Our Organizational Structure		68
Use of Proceeds		72
Capitalization		73
Dividend Policy		74
Dilution		75
Unaudited Pro Forma Consolidated Financial Information		77
Management’s Discussion and Analysis of Financial Condition and Results of Operations		84
Business		111
Management		128
Executive Compensation		135
Certain Relationships and Related Party Transactions		147
Principal Stockholders		162
Description of Capital Stock		164
Shares Eligible for Future Sale		170
Material U.S. Federal Income Tax Consequences to Non-U.S. Holders of Class A Common Stock		173
Underwriting		177
Legal Matters		186
Experts		186
Where You Can Find More Information		186
Index to Consolidated Financial Statements		F-1

Through and including , 2021 (the 25th day after the date of this prospectus), all dealers effecting transactions in these securities, whether or not participating in this offering, may be required to deliver a prospectus. This is in addition to a dealer’s obligation to deliver a prospectus when acting as an underwriter and with respect to an unsold allotment or subscription.

You should rely only on the information contained in this prospectus and any free writing prospectus prepared by or on behalf of us or to which we have referred you. No dealer, salesperson or other person is authorized to give any information or to represent anything not contained in this prospectus or in any free writing prospectus that we file with the Securities and Exchange Commission. We and the underwriters have not authorized anyone to provide any information or to make any representations other than those contained in this prospectus or in any related free writing prospectuses. We and the underwriters take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. You must not rely on any unauthorized information or representations. This prospectus is an offer to sell only the shares offered by this prospectus, but only under circumstances and in jurisdictions where it is lawful to do so. The information contained in this prospectus is current only as of its date regardless of the time of delivery of this prospectus or of any sale of our Class A common stock. Our business, financial condition, results of operations, and prospects may have changed since that date.

For investors outside the United States: We have not, and the underwriters have not, done anything that would permit this offering or the possession or distribution of this prospectus or any free writing prospectus we may provide to you in connection with this offering in any jurisdiction where action for purpose is required, other than in the United States. Persons outside the United States who come into possession of this prospectus must inform themselves about, and observe any restrictions relating to, the offering of the shares of Class A common stock and the distribution of this prospectus outside the United States. See “Underwriting.”

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BASIS OF PRESENTATION

Organizational Structure

In connection with the closing of this offering, we will undertake certain organizational transactions to reorganize our corporate structure. Unless otherwise stated or the context otherwise requires, all information in this prospectus reflects the consummation of the organizational transactions described in the section titled “Our Organizational Structure” and this offering, and the application of the proceeds therefrom, which we refer to collectively as the “Transactions.”

See “Our Organizational Structure” for a diagram depicting our organizational structure after giving effect to the Transactions, including this offering.

Certain Definitions

As used in this prospectus, unless the context otherwise requires, references to:

•

“AES” refers to The AES Corporation, a Delaware corporation, and its subsidiaries and affiliates.

•

“AES Grid Stability” refers to AES Grid Stability, LLC, a Delaware limited liability company and indirect subsidiary of AES.

•

“Blocker Company” refers to QFH, which is an owner of LLC Interests in Fluence Energy, LLC prior to the Transactions and is taxable as a corporation for U.S. federal income tax purposes.

•

“Blocker Mergers” refers to one or more mergers in connection with the consummation of the Transactions, whereby the Blocker Shareholder will exchange their interests in the Blocker Company for shares of our Class A common stock.

•

“Blocker Shareholder” refers to Qatar Holding LLC, which is the owner of the Blocker Company prior to the Transactions and will exchange their interests in the Blocker Company for shares of our Class A common stock pursuant to one or more mergers in connection with the consummation of the Transactions.

•

“Continuing Equity Owners” refers collectively to AES Grid Stability, Siemens Industry, and the Blocker Shareholder and their respective subsidiaries, who will after this offering collectively own all of our Class B-1 common stock and shares of our Class A common stock, representing a substantial majority of the voting power of our outstanding common stock.

•

“Contracted Backlog” means signed purchase orders or contractual minimum purchase commitments with take-or pay provisions. For our energy storage product contracts, contracted backlog includes signed customer orders or contracts under execution prior to when substantial completion is achieved. For service contracts, contracted backlog includes signed service agreement associated with our storage product projects that have not been completed.

•

“Founders” refers collectively to holders of LLC Interests (other than us) and our Class B-1 common stock immediately following consummation of the Transactions, including AES Grid Stability, Siemens Industry, and their respective subsidiaries, who may, following the consummation of this offering, at each of their respective options, in whole or in part from time to time, require Fluence Energy, LLC to redeem their LLC Interests (along with an equal number of shares of Class B-1 common stock or Class B-2 common stock, as the case may be (and such shares shall be immediately cancelled)) for, at our election (determined solely by our independent directors (within the meaning of the rules of the Nasdaq) who are disinterested), cash or newly-issued shares of our Class A common stock as described in “Certain Relationships and Related Party Transactions—Fluence Energy LLC Agreement.”

•

“Fluence Energy LLC Agreement” refers to Fluence Energy, LLC’s third amended and restated limited liability company agreement, which will become effective prior to the consummation of this offering.

•

“LLC Interests” refers to the common units of Fluence Energy, LLC, including those that we purchase with the net proceeds from this offering.

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•

“Original LLC Owners” refers to the owners of LLC Interests in Fluence Energy, LLC prior to the consummation of the Transactions, collectively, which include AES Grid Stability, Siemens Industry, and QFH.

•

“Promissory Notes” refers to the two promissory notes entered into by Fluence Energy, LLC on August 11, 2021 with each of Siemens Industry and AES Grid Stability, under which Fluence Energy, LLC received a bridge financing of an aggregate of $50.0 million.

•

“QFH” refers to QIA Florence Holdings LLC, an affiliate of QIA.

•

“QIA” refers to Qatar Investment Authority, the sovereign wealth fund of Qatar, and its subsidiaries and affiliates.

•

“Siemens” refers to Siemens AG, a company incorporated under the laws of Germany, and its subsidiaries and affiliates.

•

“Siemens Industry” refers to Siemens Industry, Inc., a Delaware corporation and indirect subsidiary of Siemens.

•

“Transactions” refers to the organizational transactions and this offering, and the application of the net proceeds therefrom.

Fluence Energy, Inc. will be a holding company and the sole managing member of Fluence Energy, LLC, and upon consummation of the Transactions, its principal asset will consist of LLC Interests.

Presentation of Financial Information

Fluence Energy, LLC is the accounting predecessor of Fluence Energy, Inc. for financial reporting purposes. Fluence Energy, Inc. will be the audited financial reporting entity following this offering. Accordingly, this prospectus contains the following historical financial statements:

•

Fluence Energy, Inc. Other than the inception balance sheet, dated as of June 30, 2021, the historical financial information of Fluence Energy, Inc. has not been included in this prospectus as it is a newly incorporated entity, has no business transactions or activities to date and had no assets or liabilities during the periods presented in this prospectus.

•

Fluence Energy, LLC. Because Fluence Energy, Inc. will have no interest in any operations other than those of Fluence Energy, LLC and its subsidiaries, the historical consolidated financial information included in this prospectus is that of Fluence Energy, LLC and its subsidiaries.

Certain monetary amounts, percentages and other figures included in this prospectus have been subject to rounding adjustments. Percentage amounts included in this prospectus have not in all cases been calculated on the basis of such rounded figures, but on the basis of such amounts prior to rounding. For this reason, percentage amounts in this prospectus may vary from those obtained by performing the same calculations using the figures in our consolidated financial statements included elsewhere in this prospectus. Certain other amounts that appear in this prospectus may not sum due to rounding.

TRADEMARKS

This prospectus includes our trademarks and trade names which are protected under applicable intellectual property laws and are our property. This prospectus also contains trademarks, trade names, and service marks of other companies, which are the property of their respective owners. Solely for convenience, trademarks, trade names, and service marks referred to in this prospectus may appear without the ®, TM or SM symbols, but such references are not intended to indicate, in any way, that we will not assert, to the fullest extent permitted under applicable law, our rights or the right of the applicable licensor to these trademarks, trade names, and service marks. We do not intend our use or display of other parties’ trademarks, trade names, or service marks to imply, and such use or display should not be construed to imply, a relationship with, or endorsement or sponsorship of us by, these other parties.

iii

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MARKET AND INDUSTRY DATA

Unless otherwise indicated, information contained in this prospectus concerning our industry, competitive position, and the markets in which we operate is based on information from independent industry and research organizations, other third-party sources, and management estimates. Management estimates are derived from publicly available information released by independent industry analysts and other third-party sources, as well as data from our internal research, and are based on assumptions made by us upon reviewing such data, and our experience in, and knowledge of, such industry and markets, which we believe to be reasonable. In addition, projections, assumptions, and estimates of the future performance of the industry in which we operate and our future performance are necessarily subject to uncertainty and risk due to a variety of factors, including those described in “Risk Factors” and “Cautionary Note Regarding Forward-Looking Statements.” These and other factors could cause results to differ materially from those expressed in the estimates made by the independent parties and by us.

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PROSPECTUS SUMMARY

This summary highlights selected information contained elsewhere in this prospectus. It does not contain all of the information that may be important to you and your investment decision. Before investing in our Class A common stock, you should carefully read this entire prospectus, including the matters set forth under the sections of this prospectus captioned “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and our consolidated financial statements and related notes included elsewhere in this prospectus. In addition, certain statements in this prospectus include forward-looking information that is subject to risks and uncertainties. See “Cautionary Note Regarding Forward-Looking Statements.”

Unless otherwise indicated or the context otherwise requires, all references in this prospectus to the “Company,” “we,” “us,” “our,” “Fluence” and similar terms refer, following the consummation of the Transactions (including this offering), to Fluence Energy, Inc., and all of its direct and indirect subsidiaries, including Fluence Energy, LLC, and prior to the consummation of the Transactions (including this offering), Fluence Energy, LLC and all of its direct and indirect subsidiaries, and, in each case, unless otherwise stated or the context otherwise requires, to our predecessor companies. See “—Creation of Our Company” below for additional information.

Our fiscal year ends on September 30. All references to fiscal 2019 and 2020 refer to the year ended September 30, 2019 and 2020, respectively.

Our Mission

Our mission is to transform the way we power our world for a more sustainable future.

Overview

We are enabling the global clean energy transition with market-leading energy storage products and services and digital applications for renewables and storage. We believe battery energy storage technology (“energy storage”) is at the center of this transition and is becoming even more important as more renewables are added to the grid and the transportation sector moves towards electrification. We are driving change by delivering configurable energy storage product, service, and digital application packages, as well as our AI-enabled Fluence IQ Platform to optimize renewable and third-party storage assets. Our offerings help major utilities, developers, and commercial and industrial (“C&I”) customers around the world deliver a more sustainable, reliable, and resilient electric grid in a repeatable, scalable way.

Energy storage is a key solution to the challenges facing electricity markets and transmission grids, including: electricity load variability and quality issues from increased participation of renewable energy generation; growing consumer and industrial demand for smart grid services; and localized capacity constraints on transmission networks, particularly around periods of peak demand. Energy storage is a uniquely flexible, asset that can provide multiple critical grid services, including energy shifting, peaking capacity, ancillary services, and transmission and distribution infrastructure functions. Our team has helped the industry move from a few deployments of single-function systems under 10 megawatts (“MW”), to multiple deployments of systems over 100 MW with broad functionality optimized by advanced software and digital intelligence.

Fluence is a leading pure-play provider of energy storage technology globally, and our AI-enabled Fluence IQ helps customers maximize the value and performance of single assets or entire portfolios of clean energy assets. Although we were established in January 2018 as a joint venture between Siemens and AES, members of our board of directors and leadership team were part of the founding team at AES Energy Storage that conceived and tested the world’s first lithium-ion energy storage system on an electric grid starting in 2007. Fluence has built on AES’ industry-defining work in clean energy and storage operations and Siemens’ energy technology leadership and global sales presence. The result is an agile company with a global presence solely focused on enabling the clean energy transition.

We believe our customer- and market-centric approach differentiates us from our peers and best positions us to deploy our high-value and high-margin services and digital recurring revenue offerings across a large, global installed base, building upon our 13 years of deep energy storage experience and data-driven insights. Furthermore, our advanced digital applications delivered to non-Fluence customers can

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enable cross-sales of Fluence energy storage products. Last year, we unveiled our sixth-generation technology stack (“Tech Stack”), which is the foundation of our energy storage products. The Tech Stack is comprised of our modular, factory-built hardware (“Fluence Cube”), proprietary operating system (“Fluence OS”), and AI-enabled digital platform (“Fluence IQ”). In addition to energy storage products, our offerings include delivery services and recurring operational services, as well as financing structuring services, such as energy-storage-as-a-service (“ESaaS”). Our Fluence IQ Digital Platform includes the Fluence Bidding Application, which delivers AI-powered market bidding optimization for solar, wind, and energy storage assets, including non-Fluence energy storage systems.

Guidehouse Consulting has ranked us as the leading energy storage provider since our inception, based on factors including vision, go-to-market strategy, product performance, technology, and execution. We were also ranked the leading global energy storage systems integrator by Navigant in 2018 and the largest global energy storage system integrator in a 2021 report by Clean Horizon. We won Best Commercial Technology of the Year at the 2020 S&P Global Platts Global Energy Awards for our sixth-generation Tech Stack and were named to Fast Company’s Most Innovative Companies, Energy list in 2019 and 2021. Previous generations of our technology have won the Edison Electric Institute’s annual Edison Awards (2016, 2019, and 2021).

As of September 30, 2021, we had gigawatts (“GW”) of energy storage assets deployed and GW of contracted backlog across 29 markets with a gross global pipeline of GW. As of September 30, 2021, our global operational and maintenance (“O&M”) services team was providing services for GW of energy storage assets, with a further GW of contracted backlog, which have provided Fluence with over terabytes of data on energy storage operation and performance. As of June 30, 2021, we had $885 million of contracted backlog related to energy storage products, representing a 14% increase related to the same date last year and as of September 30, 2021 we estimated that we had between approximately $ million and $ million of contracted backlog related to energy storage products.

In 2020, we entered into an agreement with QFH for a $125 million investment to accelerate our growth and the global deployment of our offerings, which has included the acquisition of the software and digital intelligence platform of Advanced Microgrid Solutions (“AMS”), a leading artificial intelligence-enabled optimized bidding software for utility-scale storage and renewable generation assets, which became the Fluence Bidding Application. As of June 30, 2021, we had an aggregate of 2.5 GW of renewable energy assets using the Fluence Bidding Application and 1.3 GW of contracted backlog related to renewable and energy storage assets. We expect our services and Fluence IQ digital applications, including the Fluence Bidding Application, to expand meaningfully over the next five years and contribute increasingly to our bottom-line growth.

Our Industry and Market Opportunity

Climate change is an existential threat. Severe weather events and broader awareness of the financial implications of climate change are driving a systemic global transition away from fossil fuels towards sustainable energy systems. However, renewable generation, unlike fossil fuel generation, has no inherent storage capacity and can only be used in favorable wind and solar conditions. Energy storage is therefore a critical enabler of large-scale adoption of 24/7 renewable energy. Furthermore, accelerating electrification of industries such as transportation is driving demand for more generation. Energy storage can help both serve and smooth additional peak demand, improving grid reliability and managing energy requirements.

As the first truly digital asset on the electric grid, energy storage is also a uniquely flexible tool for grid planners, operators, and power providers. We believe energy storage sits at the epicenter of the global clean energy transition and represents the backbone of a massive change in our energy market infrastructure driven by three key trends: Grid modernization, decarbonization, and digitalization. The energy transformation will require $100 trillion of investment through 2050 based on the midpoint of Bloomberg New Energy Finance’s (“BloombergNEF”) NEO 2020 clean electricity and green hydrogen pathway.

The energy storage market is comprised of three components:

•

Energy storage products—the components (including batteries), professional services, and labor required to manufacture, assemble, and install products. According to BloombergNEF, global annual

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energy storage capacity installations, excluding the residential market, grew from 0.6 GW a year in 2015 to 3.8 GW a year in 2020, and are expected to grow to 34.2 GW a year by 2030. We believe most forecasts for the energy storage sector, including BloombergNEF, understate the size and market opportunity as forecasts generally only account for spend associated with the physical energy storage asset and do not account for the associated service and digital spend.

•

Services—recurring operational and maintenance services that energy storage products require, management services that are provided by third parties when asset owners outsource the operations of their systems, and the provision of ESaaS. According to BloombergNEF, global installed energy storage capacity, excluding the residential market, grew 57% per annum between 2015 and 2020, and the installed base is expected to grow at a 31% annual growth rate through 2030. BloombergNEF forecasts that global installed energy storage capacity will reach 193.7 GW by 2030, excluding the residential market.

•

Digital applications and solutions—operating systems, applications, such as trading platforms that allow system owners to manage their grid participation, and dynamic capacity services, such as virtual power plants. We believe there is an opportunity to not only deploy digital applications and solutions on individual assets but also across entire energy storage fleets and portfolios of generation assets to improve their collective performance and economic output, and to reduce the overall carbon footprint of the electric grid by optimizing the interactions between different asset types.

We believe there are multiple factors driving continued growth in the energy storage sector, including:

•

The accelerating transition from fossil to renewable generation is expected to require significant increases in energy storage capacity to both offset potential grid instability caused by intermittent renewable resources and enable the use of power from renewable generation assets at times when the natural resource is unavailable.

•

Growing capacity constraints on existing power grids that were not designed to support distributed and renewable generation infrastructure or technologies such as electric vehicles are positioning energy storage assets as a key solution.

•

A forecasted reduction in the battery cost, estimated by BloombergNEF to be approximately 8% annually from 2020 to 2030, is expected to improve the economics of energy storage and support the development of larger energy storage systems.

•

Environmental responsibility has become a priority for major companies and investors, with over 300 major companies having pledged to source 100% of their energy from renewables as part of the RE100, a global corporate renewable energy initiative.

•

Governments across the globe have announced policies to support the transition from fossil fuels to low-carbon forms of energy.

Our Products and Services

Our offerings include energy storage products and delivery services, recurring operational services, and digital solutions and applications for energy storage and other power assets. We have repeatedly pioneered new use cases for grid-scale energy storage. Some of the uses we have supported include frequency regulation, generation enhancement, capacity peak power, energy cost control, microgrids/islands, renewable integration, virtual dams, T&D enhancement, and critical power.

Energy Storage Products

We sell highly configurable energy storage products with integrated hardware, software, and digital intelligence. Unlike other energy storage providers, we take a customer- and market-centric approach, building products and technology based on customer needs and economic feasibility. We offer three energy storage products built on our sixth-generation Tech Stack foundation, which are optimized for common customer use cases but can be configured for specific use cases: Gridstack™, a grid-scale, industrial-strength energy storage product designed for demanding market applications with industry-leading reliability, scalability, and safety; Sunstack™: designed to optimize solar capture and delivery; and Edgestack™:

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commercial energy storage product that discharges when needed to flatten a facility’s energy load profile, resulting in significantly reduced demand charges. The fully integrated product is available in smaller-size building blocks that can be easily configured to meet the needs of individual facilities and aggregated across fleets or locations without time-consuming redesigns. We also offer comprehensive engineering and delivery services to support the deployment of our storage products. Customers can select from a range of delivery service, from project design to full-wrap turnkey installation.

Sixth-Generation Technology Stack

The Tech Stack, which is comprised of our Fluence Cube, Fluence OS, and Fluence IQ, builds upon 13 years of development in prior generations, reflecting ongoing safety and design improvements. The Fluence Cube is a modular, factory-built, approximately 8’x8’x8’ building block that delivers safe, scalable, cost-effective products. Our battery and supplier-agnostic system architecture allows us to deliver optimized solutions for our customers on a global scale while incorporating the latest technology components. Fluence OS is a fully integrated edge controls platform with comprehensive control, asset management and system visibility across single sites or entire fleets. The Fluence IQ Digital Platform supports applications to improve revenue generation, system decision-making, asset performance, and operations.

Services

Operational & Maintenance Services

In addition to energy storage products, our offerings include delivery services and recurring operational services. Our recurring O&M services are designed around customer business needs, in-house capabilities, performance requirements, and risk profiles. We offer four operational services packages: Guided Services, Shared Services, Complete Services, and Asset Management. These packages provide varying levels of training, maintenance, guarantees, warranties, and support to address our customers’ desired level of active system management. These service levels range from providing comprehensive training for customers to performing full asset operation and management on behalf of the customer.

Energy Storage-as-a-Service

Fluence, working with third-party financial partners, including Siemens Financial Services, offers financing structuring services to customers. For instance, ESaaS enables customers to access the benefits of energy storage without upfront investment or technical expertise.

Digital Applications and Solutions

Our team is continuously expanding the digital applications we offer to customers. Those applications may include internally developed applications as well as third-party applications offered through the Fluence IQ digital applications platform.

Our proprietary operations platform, Fluence OS, enables asset owners to manage storage product operations according to pre-set modes and access real-time information through cloud-based data. It is an integral part of all our energy storage product sales. Fluence OS controls software enables Fluence energy storage products to deliver critical grid services such as primary frequency regulation, secondary frequency response, fast frequency response, peak shaving, voltage regulation, power factor regulation, non-spinning reserves, capacity peak power, solar energy time-shifting, firm solar export, energy arbitrage, and more. Fluence also delivers stacking of grid services, allowing storage assets to perform multiple services simultaneously and increase revenue-generating opportunities. In addition to Fluence OS, we offer the Fluence IQ Digital Platform with specialized digital applications that encompasses proprietary artificial intelligence and data science technologies, such as the Fluence Bidding Application.

The Bidding Application is a leading artificial intelligence-enabled bidding software for utility-scale storage and renewable and conventional generation assets, enabling customers to optimize asset trading in wholesale electricity markets. That leadership is demonstrated by the fact that it has been selected by one customer for deployment in the California market to optimize a product acquired from a Fluence competitor. In addition, it is currently used to optimize approximately 20% of all the utility-scale wind and

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solar assets bidding into Australia’s National Electricity Market, including one of the largest solar farms in the country. One of the goals of the AMS acquisition is to combine Fluence’s insights from deep experience operating energy storage products globally with the Bidding Application’s optimized market participation capabilities.

Our Bidding Application is technology-agnostic (it can be applied to wind and solar assets as well as energy storage assets) and vendor-agnostic (it is available to optimize non-Fluence storage products), and it is delivered using cloud-based software-as-a-service, avoiding requirements for onsite hardware or software installations. Our pricing strategy is based on a volume-based subscription fee with the ability to start with a smaller scale and increase the number of assets covered by the software as customers build out their fleets, along with the potential for performance-based revenue-sharing structures.

Our Competitive Strengths

We believe the following key strengths have enabled us to become a leading provider of energy storage products, services, and digital applications, positioning us to continue to capture future market opportunities:

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Incumbent position with global track record of success. We are one of the largest providers of energy storage products globally, with 0.9 GW of energy storage assets deployed and 1.9 GW of contracted backlog as of June 30, 2021, and a track record of 13 years of experience from our predecessor companies. Additionally, as of June 30, 2021, we had an aggregate of 2.5 GW of renewable energy assets using the Fluence Bidding Application and 1.3 GW of contracted backlog related to renewables and energy storage assets. Moreover, through Fluence OS, we have access to hundreds of thousands of hours of cumulative energy storage product operating history, with over 280 terabytes of data on operation and performance. This data enables us to optimize our asset base, dispatching them to maximize economics, reduce operational costs, extend useful lives, and deliver critical grid services when needed.

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Disruptive digital and software products. We use multi-layered design of edge and cloud applications, including Fluence OS and Fluence IQ, to transform hardware into digital assets that provide extensive market and grid services, such as the Fluence Bidding Application. Our dedicated Fluence Digital team is focused on developing and commercializing additional cloud-based applications using optimization, AI-driven predictive analytics, and software to address the challenges customers face when participating in complex energy markets.

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Large installed base enables cross-selling and incremental revenue streams. Our installed base is a captive market for repeat customers and high-margin follow-on service and digital opportunities, as we are best positioned to provide tailored, value-maximizing solutions for our own products. The majority of our customers adopt energy storage as a new asset class and return for subsequent products purchases. We believe our substantial base of customers and data enables cross-selling of our service and digital offerings. Conversely, digital applications sold to non-Fluence energy storage product customers can enable energy storage product cross-sales. By deploying learnings from our digital application customers to develop offerings that meet their business needs, we believe we can create opportunities to convert them into product owners.

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Global supply chain and technology partnerships. We have developed a global supply chain with an evolving regionally focused operational model with the objective of assembling products in proximity to major markets and partnering with innovative suppliers. For example, we recently signed a technology co-development and supply agreement with Northvolt that expands our battery supply chain into Europe and allows us to develop, manufacture, and commercialize an optimized battery subsystem that is significantly more energy dense than today’s standard solutions. The agreement also enables us to deploy a battery management system that we can integrate with other vendors to extend our value chain, develop battery competencies, and lower total cost of ownership.

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Battery technology-agnostic. Our energy storage products are designed to work with many types of batteries, and we have established partnerships with the leading battery manufacturers around the world, with approximately 20 GWh of contracted battery supply through 2024. As a result, we do not believe we are exposed to significant risk from changes in battery technology or shifts in market share between different manufacturers.

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Experienced management team with extensive energy storage experience. We believe we have assembled one of the most experienced management teams in the energy storage sector, with over 200 years of aggregate industry experience and a proven track-record of managing high-growth, international operations for global industrial and technology companies. Members of our management and Board were on the team that conceived and tested the first ever grid-connected lithium-ion energy storage system and sold the world’s first commercial system.

Our Growth Strategy

We intend to leverage our global scale, technology leadership and market share position to help transform the way we power our world for a more sustainable future. Some key elements of our growth strategy include:

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Develop energy products, services, and digital applications packaged into solutions that solve customers’ energy challenges. Our close relationships with customers and our market intimacy informs our hardware and software product development and service offerings and enables us to continually expand use cases for energy storage on the grid—pushing the edge of innovation for grid modernization and decarbonization as our customers’ business models evolve.

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Expand competitive advantage of productization and manufacturing. We aim to create an optimized production organization, develop mass manufacturing facilities globally, and continue to secure partnerships with key battery suppliers. We believe that enhancing our product-focused model and supply chain leverage will support our global growth objectives and result in superior unit economics.

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Optimize sales channels and market segmentation with a regionalized model. We are focused on expanding standardized offerings that are optimized for each of our sales channels, allowing us to streamline product procurement for our customers, improve our sales cycle, enhance our ability to scale and support our margin expansion. We are also moving to a more localized, regional organizational structure to better support customers and sales channels, improve logistics, and enhance market focus.

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Leverage our sponsor relationships to accelerate global growth. Our partnerships with AES and Siemens provide built-in and growing customer bases and an international sales channel. In addition, in 2021, QIA became a strategic sponsor with its investment through QFH that may help position us to form relationships with additional technology partners, customers, and suppliers.

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Expand our services with additional value-add offerings. Our delivery and operational service offerings address the diverse needs of our customers in different markets around the world. We intend to build and expand our portfolio of service offerings, including product upgrades, analysis, performance assurance, risk management products, and software support, using data-driven insights generated from our large installed base of energy storage products.

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Accelerate the deployment of the Fluence Bidding Application and develop new Fluence IQ digital applications. Our digital offerings enable renewable and energy storage asset owners to solve the complexities of power system dispatch on a grid that remains dependent on out-of-date infrastructure and inefficient tools. We are focused on making the Fluence Bidding Application available in more markets while expanding our breadth of Fluence IQ digital application offerings, including integrated solutions for specific customer segments and new asset classes.

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Incubate innovative business models. We continue to explore disruptive digitally-driven business models, including ESaaS, wide-ranging dynamic capacity, virtual storage, asset- and revenue-sharing models, and other offerings that will reinforce our position as a leading provider of comprehensive solutions to support the clean energy transition.

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Ability to acquire and successfully integrate companies. We have a demonstrated track record of successfully acquiring and integrating companies, and believe we have the operational structure in place to achieve synergies and capture cross-selling opportunities. For example, within eight months of acquiring AMS, we had fully integrated the team and technology into Fluence and grown adoption of the Fluence Bidding Application software by 1.7 GW.

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Environmental, Social, and Governance

We are a purpose-built, purpose-driven company on a mission to transform the way we power our world for a more sustainable future. We support the clean energy transition by enabling greater adoption of renewable energy and decarbonized technologies such as electric vehicles and reduced use of thermal generation resources. Our offerings enable more sustainable, reliable, and resilient electric grids in a repeatable, scalable way. On an annualized basis, based on MW deployed as of May 2021, we estimate that Fluence energy storage products have eliminated 145,000 metric tons of carbon per year that would have otherwise been produced—the equivalent of taking more than 30,000 cars off the road each year.

We endeavor to go beyond the inherent environmental aspects of our technology and implement sustainable and ethical processes throughout our organization. Our supplier code of conduct is at the core of our compliance expectations, and addresses environmental protection, child labor, conflict minerals, and anti-corruption, among other areas. In addition, we only purchase raw materials and minerals from trusted suppliers. In sourcing cobalt for example, we request that suppliers provide an official cobalt statement disclosing its origin, and we only buy cobalt battery chemistry from suppliers who are part of a sustainable cobalt sourcing initiative. In 2021, our supply chain sustainability coordinator engaged the Carbon Disclosure Project to conduct an audit of our supply chain’s carbon footprint.

We are committed to implementing responsible environmental and ethical practices in our corporate offices as well as our supply chain. Our offices are internationally certified to ISO 14001, which requires an organization to implement and demonstrate compliance with an effective environmental management system to identify and control the environmental impact of its activities, products, and services; continually improve environmental performance; and implement a systematic approach to setting environmental objectives and targets.

We plan to report how we oversee and manage environmental, social, and governance (“ESG”) factors material to our business under the sector-specific ESG standards recommended by the Sustainability Accounting Standards Board (the “SASB”), including an annual sustainability report. As part of our plan to provide ESG disclosures pursuant to SASB standards, we will evaluate aligning our internal sustainability goals with certain United Nations Sustainable Development Goals.

Creation of Our Company

We were created from the union of AES’ Energy Storage division and Siemens’ battery-based energy storage solutions group. The founding team at AES Energy Storage—several of whom are on Fluence’s leadership team and Board—tested the first ever lithium-ion battery energy storage system on the grid in 2007, sold the world’s first commercial grid-scale energy storage system in Chile in 2009, and subsequently amassed deep expertise in utility-scale storage solutions for flexible peaking capacity, ancillary services such as frequency regulation, transmission and distribution reliability, and renewable integration applications. Siemens’ battery-based energy storage solutions group was established in 2011, building on the company’s knowledge of customer power needs as a leading global original equipment manufacturer and developing experience in microgrid and islanding applications, renewable hybrid technology, and consumer peak shaving.

Summary of the Transactions

Fluence Energy, Inc., a Delaware corporation, was formed on June 21, 2021 and is the issuer of the Class A common stock offered by this prospectus. Prior to this offering, all of our business operations have been conducted through Fluence Energy, LLC and its direct and indirect subsidiaries. Prior to the Transactions, we expect there will initially be one holder of common stock of Fluence Energy, Inc. We will consummate the following organizational transactions in connection with this offering:

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we will amend and restate the existing limited liability company agreement of Fluence Energy, LLC, which will become effective prior to the consummation of this offering, to, among other things, (1) recapitalize all existing ownership interests in Fluence Energy, LLC into LLC Interests and (2) appoint Fluence Energy, Inc. as the sole managing member of Fluence Energy, LLC upon its acquisition of LLC Interests in connection with this offering;

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we will amend and restate Fluence Energy, Inc.’s certificate of incorporation to, among other things, provide (1) for Class A common stock, with each share of our Class A common stock entitling its holder to one vote per share on all matters presented to our stockholders generally, and (2) for Class B-1 common stock, with each share of our Class B-1 common stock entitling its holder to five votes per share on all matters presented to our stockholders generally, and that shares of our Class B-1 common stock may only be held by the Founders and their respective permitted transferees as described in “Description of Capital Stock—Common Stock—Class B-1 and Class B-2 Common Stock;”

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we will acquire, by means of one or more mergers, the Blocker Company and will issue to the Blocker Shareholder shares of our Class A common stock as consideration in the Blocker Mergers;

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we will issue shares of our Class B-1 common stock to the Founders, which is equal to the number of LLC Interests held by such Founders, for nominal consideration;

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we will issue shares of our Class A common stock to the purchasers in this offering (or shares if the underwriters exercise in full their option to purchase additional shares of Class A common stock) in exchange for net proceeds of approximately $ million (or approximately $ million if the underwriters exercise in full their option to purchase additional shares of Class A common stock) based upon an assumed initial public offering price of $ per share (which is the midpoint of the estimated price range set forth on the cover page of this prospectus), less the underwriting discount and estimated offering expenses payable by us;

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we will use the net proceeds from this offering to purchase newly issued LLC Interests (or LLC Interests if the underwriters exercise in full their option to purchase additional shares of Class A common stock) directly from Fluence Energy, LLC at a price per unit equal to the initial public offering price per share of Class A common stock in this offering less the underwriting discount and estimated offering expenses payable by us;

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Fluence Energy, LLC intends to use the net proceeds from the sale of LLC Interests to Fluence Energy, Inc. to repay all outstanding borrowings under our existing Line of Credit and the Promissory Notes, and the remainder for working capital and other general corporate purposes, as described under “Use of Proceeds;” and

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Fluence Energy, Inc. and the Continuing Equity Owners will enter into (1) the Stockholders Agreement and the (2) the Registration Rights Agreement, and Fluence Energy, Inc., Fluence Energy, LLC, and the Founders will enter into the Tax Receivable Agreement. For a description of the terms of the Stockholders Agreement, the Registration Rights Agreement and the Tax Receivable Agreement, see “Certain Relationships and Related Party Transactions.”

Immediately following the consummation of the Transactions (including this offering):

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Fluence Energy, Inc. will be a holding company and its principal asset will consist of LLC Interests it purchases directly from Fluence Energy, LLC and acquires indirectly from the Blocker Shareholder;

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Fluence Energy, Inc. will be the sole managing member of Fluence Energy, LLC and will control the business and affairs of Fluence Energy, LLC and its direct and indirect subsidiaries;

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Fluence Energy, Inc. will own, directly or indirectly, LLC Interests of Fluence Energy, LLC, representing approximately % of the economic interest in Fluence Energy, LLC (or LLC Interests, representing approximately % of the economic interest in Fluence Energy, LLC if the underwriters exercise in full their option to purchase additional shares of Class A common stock);

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the Founders will own (1) LLC Interests of Fluence Energy, LLC, representing approximately % of the economic interest in Fluence Energy, LLC (or LLC Interests, representing approximately % of the economic interest in Fluence Energy, LLC if the underwriters exercise in full their option to purchase additional shares of Class A common stock) and (2) shares of Class B-1 common stock of Fluence Energy, Inc., representing approximately % of the combined voting power of all of Fluence Energy, Inc.’s common stock (or shares of Class B-1 common stock of Fluence Energy, Inc., representing approximately % if the underwriters exercise in full their option to purchase additional shares of Class A common stock);

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the Blocker Shareholder will own (1) shares of Class A common stock of Fluence Energy, Inc. (or shares of Class A common stock of Fluence Energy, Inc. if the underwriters exercise in full their option to purchase additional shares of Class A common stock), representing approximately % of the combined voting power of all of Fluence Energy, Inc.’s common stock and approximately % of the economic interest in Fluence Energy, Inc. (or approximately % of the combined voting power and approximately % of the economic interest if the underwriters exercise in full their option to purchase additional shares of Class A common stock), (2) directly and indirectly through Fluence Energy, Inc.’s ownership of LLC Interests, approximately % of the economic interest in Fluence Energy, LLC (or approximately % of the economic interest in Fluence Energy, LLC if the underwriters exercise in full their option to purchase additional shares of Class A common stock); and

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the purchasers in this offering will own (1) shares of Class A common stock of Fluence Energy, Inc. (or shares of Class A common stock of Fluence Energy, Inc. if the underwriters exercise in full their option to purchase additional shares of Class A common stock), representing approximately % of the combined voting power of all of Fluence Energy, Inc.’s common stock and approximately % of the economic interest in Fluence Energy, Inc. (or approximately % of the combined voting power and approximately % of the economic interest if the underwriters exercise in full their option to purchase additional shares of Class A common stock), and (2) through Fluence Energy, Inc.’s ownership of LLC Interests, indirectly will hold approximately % of the economic interest in Fluence Energy, LLC (or approximately % of the economic interest in Fluence Energy, LLC if the underwriters exercise in full their option to purchase additional shares of Class A common stock).

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we will have shares of Class A common stock reserved for issuance pursuant to awards under our incentive compensation plans—see “Executive Compensation—Equity Compensation”.

As the sole managing member of Fluence Energy, LLC, we will operate and control all the business and affairs of Fluence Energy, LLC and, through Fluence Energy, LLC and its direct and indirect subsidiaries, conduct our business. Following the Transactions, including this offering, Fluence Energy, Inc. will control the management of Fluence Energy, LLC as its sole managing member. As a result, Fluence Energy, Inc. will consolidate Fluence Energy, LLC and record a significant non-controlling interest in a consolidated entity in Fluence Energy, Inc.’s consolidated financial statements for the economic interest in Fluence Energy, LLC held by the Founders.

Unless otherwise indicated, this prospectus assumes the shares of Class A common stock are offered at $ per share (the midpoint of the estimated price range set forth on the cover page of this prospectus). For more information regarding the impact of the initial offering price on the share information included throughout this prospectus, see “—The Offering.”

For more information regarding the Transactions and our structure, see “Our Organizational Structure.”

Revolving Credit Facility

In connection with this offering, we plan to enter into a $200.0 million secured revolving credit facility (the “Revolver”) dated on or about the date of the consummation of this offering, by and among Fluence Energy, LLC, as the borrower, Fluence Energy, Inc., as a parent guarantor, the subsidiary guarantors party thereto, the lenders party thereto and JP Morgan Chase Bank, N.A., as administrative agent and collateral agent. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Liquidity and Capital Resources—Revolving Credit Facility.” The effectiveness of the Revolver is conditioned upon the consummation of this offering; however, this offering is not contingent upon the effectiveness of the Revolver.

Ownership Structure

The diagram below depicts our organizational structure after giving effect to the Transactions, including this offering, assuming no exercise by the underwriters of their option to purchase additional shares of Class A common stock.

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[MISSING IMAGE: tm2120236d8-fc_votingbwlr.jpg]

This chart does not include the shares of Class A common stock issuable pursuant to our equity compensation plans.

After giving effect to the Transactions, including this offering, Fluence Energy, Inc. will be a holding company whose principal asset will consist of % of the outstanding LLC Interests of Fluence Energy, LLC (or % if the underwriters exercise in full their option to purchase additional shares of our Class A common stock). This offering is being conducted through what is commonly referred to as an “Up-C” structure, which is often used by partnerships and limited liability companies undertaking an initial public offering. The Up-C approach provides the existing owners with the tax treatment of continuing to own interests in a pass-through structure and provides potential future tax benefits for both the public company and the existing owners when they ultimately redeem their pass-through interests for shares of Class A common stock or cash from the sale of newly issued shares of Class A common stock.

Recent Developments—Preliminary Fourth Quarter Results

While we have not yet completed our closing procedures as of and for the three months and fiscal year ended September 30, 2021, set forth below are selected, unaudited, preliminary estimated results for that period.

Based on our preliminary internal estimates, we estimate new energy storage product contracts executed during the fiscal year ended September 30, 2021 will represent total contracted power of approximately MW, compared to 844 MW of total contracted power during the fiscal year ended September 30, 2020, and new energy storage products executed during the three months ended September 30, 2021 will represent total contracted power of approximately MW, compared to 279 MW of total contracted power during the three months ended September 30, 2020.

Additionally, we estimate that for the fiscal year ended September 30, 2021, we had approximately MW of contracted service contracts, compared to 232 MW for the fiscal year ended September 30, 2020, and for the three months ended September 30, 2021, we had approximately MW of contracted service contracts, compared to 205 MW for the three months ended September 30, 2020.

For the fiscal year ended September 30, 2021, we estimate that we had approximately MW of contracted digital contracts, compared to 0 MW for the fiscal year ended September 30, 2020, and for the

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three months ended September 30, 2021, we estimate that we had approximately MW of contracted digital contracts, compared to 0 MW for the three months ended September 30, 2020.

We also estimate that our total revenue for the fiscal year ending September 30, 2021 will be between approximately $ million and $ million, compared to $561.3 million of total revenue for the fiscal year ended September 30, 2020, and our total revenue for the three months ending September 30, 2021 will be between approximately $ million and $ million, compared to $239.5 million of total revenue for the three months ended September 30, 2020, which is being driven primarily by sales of our energy storage products. Revenue for the three months and fiscal year ending September 30, 2021 has been negatively affected by impacts related to the COVID-19 global pandemic, such as delays in shipping out energy storage products and temporary closures of customer construction sites. Such delays may continue in fiscal year 2022. Please see “Risk Factors—Risks Related to our Business—We have experienced and may continue to experience delays, disruptions, or quality control problems in our manufacturing operations in part due to our third-party manufacturer concentration.” and “—We face risks related to actual or threatened health epidemics, such as the COVID-19 pandemic, and other outbreaks, which could significantly disrupt our suppliers’ manufacturing and our operations.”

As discussed elsewhere in this prospectus, we experience seasonality and typically see increased order intake in the third and fourth fiscal quarters (April to September), and we have seen that trend continue in our fiscal fourth quarter ended September 30, 2021. Please see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Key Factors and Trends—Seasonality” and “Risk Factors—Risks Related to Our Financial Condition and Liquidity—Our order intake and cash flows have been highly seasonal, which could make our future performance difficult to predict and could cause our results of operations for a particular period to fluctuate from quarter to quarter or fall below expectations, resulting in a decline in the price of our Class A common stock” for further discussion of our seasonality.

For the three months and fiscal year ended September 30, 2021, we expect that our financial results, specifically our gross profit and gross profit as a percentage of revenue, will be negatively impacted by (a) capacity constraints within the shipping industry and increased shipping costs, both of which we believe are caused primarily as a result of the COVID-19 pandemic, and (b) cost overruns and delays we are experiencing in some projects currently under construction. Some of those costs overruns and delays are occurring in the first Generation 6 product deliveries. As a result, we expect to recognize a gross loss of approximately $ million to $ million for the three months ended September 30, 2021 compared to a gross profit of $12 million for the three months ended September 30, 2020, and a gross loss of approximately $ million to $ million for the fiscal year ended September 30, 2021 compared to a gross profit of $7.9 million for the fiscal year ended September 30, 2020. We also expect to report a lower gross profit as a percentage of revenue for the three months and fiscal year ended September 30, 2021 compared to the corresponding periods of fiscal 2020. See “Risk Factors—Risks Related to Our Business—Significant changes in the cost of raw materials or to logistic cost(s) could adversely affect our financial performance.”

We expect that the negative impacts of the items discussed below will result in a net loss of approximately $ million to $ million for the fiscal year ended September 30, 2021, compared to a net loss of $46.7 million for the fiscal year ended September 30, 2020, and a net loss of approximately $ million to $ million for the three months ended September 30, 2021, compared to a net loss of $1.1 million for the three months ended September 30, 2020.

The increased investment into our business growth, the transition to a mass manufacturing business model, the delays from shipping, and temporary customer site closures is causing negative cash flow. We estimate that our cash flow from operations for the fiscal year ending September 30, 2021 will be between approximately $ million and $ million, compared to ($14.0) million of cash flow from operations for the fiscal year ended September 30, 2020, and our cash flow from operations for the three months ending September 30, 2021 will be between approximately $ million and $ million, compared to $61.8 million of cash flow from operations for the three months ended September 30, 2020.

As of September 30, 2021, we expect to have approximately $ million of indebtedness outstanding under our existing Line of Credit and the Promissory Notes.

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Our preliminary estimated results for the three months and fiscal year ending September 30, 2021 are based solely on information available to us as of the date of this prospectus and are inherently uncertain and subject to change due to a variety of business, economic and competitive risks and uncertainties, many of which are not within our control, and we undertake no obligation to update this information. Our estimates contained in this prospectus are forward looking statements. These estimates should not be viewed as a substitute for our full interim or annual financial statements prepared in accordance with GAAP. Accordingly, you should not place undue reliance on this preliminary data. Our actual results may differ materially from these estimates due to financial results for the remainder of the fiscal year, the completion of our year-end closing procedures, final adjustments and developments that may arise between now and the time our financial results for the three months and fiscal year ended September 30, 2021 are finalized. Our actual consolidated financial statements and related notes for the year ended September 30, 2021 are not expected to be filed with the SEC until after this offering is completed. During the course of the preparation of these actual consolidated financial statements and related notes, additional items that may require material adjustments to the preliminary estimated financial results presented above could be identified.

The preliminary financial data included in this prospectus have been prepared by and are the responsibility of our management. Ernst & Young LLP has not compiled, reviewed, examined, performed any other assurance procedures, or expressed any form of assurance with respect to the preliminary financial data included in this Registration Statement. The report of Ernst & Young LLP included in this Registration Statement relates to the Company’s historical audited financial statements and does not extend to the unaudited preliminary financial data and should not be read to do so.

Additional Updates

As discussed in our condensed consolidated financial statements for the nine months ended June 30, 2021 contained within this prospectus, we were notified on April 28, 2021 of an emergency aboard a vessel carrying Fluence inventory. This incident resulted in damage to a portion of our cargo aboard the vessel. We recorded a gross inventory loss of $19.8 million during the nine months ended June 30, 2021 based on our best preliminary estimate of the net realizable value of the cargo. Subsequent to the issuance of our condensed consolidated financial statements for the nine months ended June 30, 2021, we have revised our estimate of gross inventory losses to $12.8 million based on further inspection and assessment of the damaged inventory. In addition to the inventory losses, we expect at least $11.3 million of incremental expenses related to the incident, primarily consisting of inspection costs, project cost overruns due to logistical changes, legal fees and fees to dispose of the damaged cargo. The timing of recognition of these incremental expenses is not yet certain. We still expect insurance receivables of at least $10.0 million related to non-disputed claims that we believe are probable of collection.

On September 4, 2021, a 300 MW energy storage facility owned by one of our customers experienced an overheating event. Fluence served as the energy storage technology provider and installed the facility, which was completed earlier in fiscal year 2021. No injuries were reported from the incident. The facility has been taken offline as teams from Fluence, our customer, and the battery manufacturer investigate the incident. We are currently not able to estimate the impact, if any, that this incident may have on our reputation or financial results, or on market adoption of our products.

Summary Risk Factors

Participating in this offering involves substantial risk. Our ability to execute our strategy is also subject to certain risks. The risks described under the heading “Risk Factors” included elsewhere in this prospectus may cause us not to realize the full benefits of our strengths or may cause us to be unable to successfully execute all or part of our strategy. Some of the most significant challenges and risks we face include the following:

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our limited operating and revenue history as an independent entity and our nascent industry make evaluating our business and future prospects difficult;

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if we are unable to attract new customers and retain existing customers, our revenue growth will be adversely affected;

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we have experienced and may continue to experience delays, disruptions, or quality control problems in our manufacturing operations in part due to our third-party manufacturer concentration;

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we have experienced and may continue to experience exposure to risks associated with construction, utility interconnection, cost overruns, and delays, including those related to obtaining government permits and other contingencies that may arise in the course of completing installations;

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the interruption of the flow of components and materials from international vendors could disrupt our supply chain, including as a result of the imposition of additional duties, tariffs, and other charges on imports and exports;

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significant changes in the cost of raw materials or to logistic cost could adversely affect our financial performance;

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if any energy storage products provided to our customers contain manufacturing defects, our business and financial results could be adversely affected;

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a loss of one or more of our significant customers, their inability to perform under their contracts, or their default in payment could harm our business and negatively impact revenue, results of operations, and cash flow;

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if we fail to manage our recent and future growth effectively, we may be unable to execute our business plan, maintain high levels of customer service, or adequately address competitive challenges;

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we depend on our senior management team and other key employees, and the loss of one or more of these employees or an inability to attract and retain other highly skilled employees could harm our business;

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if renewable energy technologies are not suitable for widespread adoption or sufficient demand for our hardware and software-enabled services does not develop or takes longer to develop than we anticipate, our sales may decline and we may be unable to achieve or sustain profitability;

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if we are unable to obtain, maintain, and enforce intellectual property protection for our technology or if the scope of our intellectual property protection is not sufficiently broad, others may be able to develop and commercialize technology substantially similar to ours, and our ability to successfully commercialize our technology may be adversely affected;

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we have made and expect to continue to make acquisitions, and if we fail to successfully select, execute, or integrate our acquisitions, then our business and operating results could be harmed and our stock price could decline;

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we are controlled by the Continuing Equity Owners, whose interests may differ from those of our public stockholders;

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the Tax Receivable Agreement we will enter into with the Founders requires us to make cash payments to them in respect of certain tax benefits to which we may become entitled, and we expect that such payments will be substantial; and

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the services that we receive from the Founders may not be sufficient for us to operate our business, and we would likely incur significant incremental costs if we lost access to our Founders’ services.

Before you invest in our Class A common stock, you should carefully consider all the information in this prospectus, including as set forth in the section titled “Risk Factors.”

Our Corporate Information

Fluence Energy, Inc., the issuer of the Class A common stock in this offering, was incorporated as a Delaware corporation on June 21, 2021. Our corporate headquarters are located at 4601 Fairfax Drive, Suite 600, Arlington, Virginia 22203. Our telephone number is (833) 358-3623.

Our principal website address is https://fluenceenergy.com. The information on, or that can be accessed through, our website is deemed not to be incorporated in this prospectus or to be part of this prospectus. You should not consider information contained on our website to be part of this prospectus in deciding whether to purchase shares of our Class A common stock.

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Implications of Being an Emerging Growth Company

We qualify as an “emerging growth company” as defined in the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”). An emerging growth company may take advantage of certain reduced reporting and other requirements that are otherwise generally applicable to public companies. As a result:

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we are required to have only two years of audited financial statements and only two years of related selected financial data and management’s discussion and analysis of financial condition and results of operations disclosure;

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we are not required to engage an auditor to report on our internal control over financial reporting pursuant to Section 404(b) of the Sarbanes-Oxley Act of 2002 (the “Sarbanes-Oxley Act”);

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we are not required to comply with the requirement of the Public Company Accounting Oversight Board regarding the communication of critical audit matters in the auditor’s report on the financial statements;

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we are not required to submit certain executive compensation matters to stockholder advisory votes, such as “say-on-pay,” “say-on-frequency,” and “say-on-golden parachutes;” and

•

we are not required to comply with certain disclosure requirements related to executive compensation, such as the requirement to present a comparison of our Chief Executive Officer’s compensation to our median employee compensation.

We have elected to take advantage of certain of these reduced disclosure obligations in the registration statement of which this prospectus forms a part. We may take advantage of these reduced reporting and other requirements until such time that we are no longer an emerging growth company. We will remain an emerging growth company until the earliest of: (1) the last day of the fiscal year following the fifth anniversary of the consummation of this offering; (2) the last day of the fiscal year in which we have total annual gross revenue of at least $1.07 billion; (3) the last day of the fiscal year in which we are deemed to be a “large accelerated filer” as defined in Rule 12b-2 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), which would occur if the market value of our common stock held by non-affiliates exceeded $700.0 million as of the last business day of the second fiscal quarter of such year; or (4) the date on which we have issued more than $1.0 billion in non-convertible debt securities during the prior three-year period.

In addition, the JOBS Act permits an emerging growth company like us to take advantage of an extended transition period to comply with new or revised accounting standards applicable to public companies. We have elected to take advantage of this extended transition period. As a result, the information that we provide to stockholders may be different than the information you may receive from other public companies in which you hold equity.

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The Offering

Issuer

Fluence Energy, Inc.

Shares of Class A common stock offered by us

shares (or shares if the underwriters exercise in full their option to purchase additional shares).

Underwriters’ option to purchase additional shares of Class A common stock from us

shares.

Shares of Class A common stock to be outstanding immediately after this offering

shares, representing approximately % of the combined voting power of all of Fluence Energy, Inc.’s common stock (or shares, representing approximately % of the combined voting power of all of Fluence Energy, Inc.’s common stock if the underwriters exercise in full their option to purchase additional shares of Class A common stock), % of the economic interest in Fluence Energy, Inc. and % of the indirect economic interest in Fluence Energy, LLC.

Shares of Class B-1 common stock to be outstanding immediately after this offering

Shares of Class B-2 common stock to be outstanding immediately after this offering

No shares of Class B-2 common stock will be outstanding immediately after this offering. Each share of Class B-1 common stock will automatically convert into one share of Class B-2 common stock upon the occurrence of certain circumstances described in our amended and restated certificate of incorporation. See “Description of Capital Stock—Common Stock—Class B-1 and Class B-2 Common Stock.”

LLC Interests to be held by us immediately after this
offering

LLC Interests, representing approximately % of the economic interest in Fluence Energy, LLC (or LLC Interests, representing approximately % of the economic interest in Fluence Energy, LLC if the underwriters exercise in full their option to purchase additional shares of Class A common stock).

LLC Interests to be held directly by the Founders immediately after this offering

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full their option to purchase additional shares of Class A common stock).

Ratio of shares of Class A common stock to LLC Interests

Our amended and restated certificate of incorporation and the Fluence Energy LLC Agreement will require that we and Fluence Energy, LLC at all times maintain a one-to-one ratio between the number of shares of Class A common stock issued by us and the number of LLC Interests owned by us, except as otherwise determined by us.

Ratio of shares of Class B-1 and
Class B-2 common stock to LLC Interests

Our amended and restated certificate of incorporation and the Fluence Energy LLC Agreement will require that we and Fluence Energy, LLC at all times maintain a one-to-one ratio between the aggregate number of shares of Class B-1 and Class B-2 common stock owned by the Founders and their respective permitted transferees and the number of LLC Interests owned by such Founders and their respective permitted transferees, except as otherwise determined by us. Immediately after the Transactions, the Founders will together own 100% of the outstanding shares of our Class B-1 common stock.

Permitted holders of shares of Class B-1 and Class B-2 common stock

Only the Founders and the permitted transferees of Class B-1 and Class B-2 common stock as described in this prospectus will be permitted to hold shares of our Class B-1 and Class B-2 common stock. Shares of Class B-1 and Class B-2 common stock may not be transferred, except together with an equal number of LLC Interests. See “Certain Relationships and Related Party Transactions—Fluence Energy LLC Agreement.”

Voting rights

Holders of shares of our Class A common stock and our Class B-1 and Class B-2 common stock will vote together as a single class on all matters presented to stockholders for their vote or approval, except as otherwise required by law or our amended and restated certificate of incorporation. Each share of our Class A common stock entitles its holders to one vote per share, each share of our Class B-1 common stock entitles its holders to five votes per share and each share of our Class B-2 common stock entitles its holders to one vote per share on all matters presented to our stockholders generally. Each outstanding share of Class B-1 common stock will automatically convert into one share of Class B-2 common stock upon the earliest of (1) any transfer by a Founder of such shares of Class B-1 common stock other than to an affiliate of such Founder, (2) with respect to each Founder and its affiliates, 5:00 p.m. (New York City time) on a date fixed by our board of directors that is not less than 60 days nor more than 180 days following the date that such Founder, together with its affiliates, ceases to hold an aggregate number of shares of all classes of our common stock representing at least 20% of the aggregate number of all outstanding shares of all classes of our common stock, and (3) 5:00 p.m. (New York City

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time) on the date that is seven years following the closing of the offering. See “Description of Capital Stock.”

Redemption rights of holders of LLC Interests

The Founders may, subject to certain exceptions, from time to time at each of their options require Fluence Energy, LLC to redeem all or a portion of their LLC Interests in exchange for, at our election (determined solely by our independent directors (within the meaning of the rules of Nasdaq) who are disinterested), newly-issued shares of our Class A common stock on a one-for-one basis or a cash payment from the sale of newly issued shares of Class A common stock equal to a volume weighted average market price of one share of our Class A common stock for each LLC Interest so redeemed, in each case, in accordance with the terms of the Fluence Energy LLC Agreement; provided that, at our election (determined solely by our independent directors (within the meaning of the rules of the Nasdaq) who are disinterested), we may effect a direct exchange by Fluence Energy, Inc. of such Class A common stock or such cash, as applicable, for such LLC Interests. In the event of cash settlement, Fluence Energy, Inc. would issue new shares of Class A common stock and use the proceeds from the sale of these newly-issued shares of Class A common stock to fully fund the cash settlement, which, in effect, limits the amount of the cash payment to the redeeming member. Such Founders may, subject to certain exceptions, exercise such redemption right for as long as their LLC Interests remain outstanding. See “Certain Relationships and Related Party Transactions—Fluence Energy LLC Agreement.” Simultaneously with the payment of cash or shares of Class A common stock, as applicable, in connection with a redemption or exchange of LLC Interests pursuant to the terms of the Fluence Energy LLC Agreement, a number of shares of our Class B-1 common stock or Class B-2 common stock, as the case may be, registered in the name of the redeeming or exchanging Founder will automatically be transferred to the Company and will be cancelled for no consideration on a one-for-one basis with the number of LLC Interests so redeemed or exchanged.

Use of proceeds

We estimate, based upon an assumed initial public offering price of $ per share (which is the midpoint of the estimated price range set forth on the cover page of this prospectus), that we will receive net proceeds from this offering of approximately $ million (or $ million if the underwriters exercise in full their option to purchase additional shares of Class A common stock), after deducting the underwriting discount and estimated offering expenses payable by us. We intend to use the net proceeds from this offering to purchase newly issued LLC Interests (or LLC Interests if the underwriters exercise in full their option to purchase additional shares of Class A common stock) directly from Fluence Energy, LLC at a price per unit equal to the initial public offering price per share of Class A common stock in this offering less the underwriting discount and estimated offering expenses payable by us. Fluence

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Energy, LLC intends to use the net proceeds from the sale of LLC Interests to Fluence Energy, Inc. to repay all outstanding borrowings under our existing Line of Credit and the Promissory Notes, and the remainder for working capital and other general corporate purposes. Fluence Energy, LLC will bear or reimburse Fluence Energy, Inc. for all of the expenses of this offering. See “Use of Proceeds.”

Dividend policy

We currently intend to retain all available funds and any future earnings to fund the development and growth of our business, and therefore, we do not anticipate declaring or paying any cash dividends on our Class A common stock in the foreseeable future. Holders of our Class B-1 and Class B-2 common stock are not entitled to participate in any dividends declared by our board of directors. Because we are a holding company, our ability to pay cash dividends on our Class A common stock depends on our receipt of cash distributions from Fluence Energy, LLC and, through Fluence Energy, LLC, cash distributions and dividends from our other direct and indirect subsidiaries. Assuming Fluence Energy, LLC makes distributions out of earnings and profits (other than tax distributions and other distributions to pay expenses) to its members in any given year, we currently expect, subject to the determination of our board of directors, to pay dividends on our Class A common stock out of the portion of such distributions remaining after our payment of taxes, Tax Receivable Agreement payments and expenses, and subject to Delaware law. Our ability to pay dividends may be restricted by the terms of any future credit agreement or any future debt or preferred equity securities of us or our subsidiaries. Any future determination as to the declaration and payment of dividends, if any, will be at the discretion of our board of directors, subject to compliance with contractual restrictions and covenants in the agreements governing our future indebtedness. Any such determination will also depend upon our business prospects, results of operations, financial condition, cash requirements and availability, industry trends, and other factors that our board of directors may deem relevant. See “Dividend Policy.”

Controlled company
exception

After the consummation of the Transactions, we will be considered a “controlled company” within the meaning of the listing rules of the Nasdaq Global Market, or the Nasdaq rules, as the Continuing Equity Owners will have more than 50% of the voting power for the election of directors. See “Principal Stockholders.” As a “controlled company,” we will not be subject to certain corporate governance requirements, including that: (1) a majority of our board of directors consists of “independent directors,” as defined under the Nasdaq rules; (2) our board of directors have a compensation committee that is comprised entirely of independent directors with a written charter addressing the committee’s purpose and responsibilities; and (3) our director nominations be made, or recommended to our full board of directors, by our independent directors or by a nominations committee that is

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comprised entirely of independent directors and that we adopt a written charter or board resolution addressing the nominations process. As a result, we may not have a majority of independent directors on our board of directors, an entirely independent nominating and corporate governance committee, an entirely independent compensation committee or perform annual performance evaluations of the nominating and corporate governance and compensation committees unless and until such time as we are required to do so.

Directed Share Program

At our request, the underwriters have reserved up to % of the shares of Class A common stock offered by this prospectus for sale at the initial public offering price through a directed share program to certain individuals identified by management. Any shares sold under the directed share program will not be subject to the terms of any lock-up agreement, except in the case of shares purchased by our officers or directors. The number of shares of Class A common stock available for sale to the general public will be reduced by the number of reserved shares sold to these individuals. Any reserved shares not purchased by these individuals will be offered by the underwriters to the general public on the same basis as the other shares of Class A common stock offered under this prospectus. See the section titled “Underwriting—Directed Share Program.”

Tax Receivable Agreement

We will enter into a Tax Receivable Agreement with Fluence Energy, LLC and the Founders that will provide for the payment by Fluence Energy, Inc. to such Founders of 85% of the amount of tax benefits, if any, that Fluence Energy, Inc. actually realizes (or in some circumstances is deemed to realize) as a result of (1) increases in our proportionate share of the tax basis of the assets of Fluence Energy, LLC and its subsidiaries resulting from future redemptions or exchanges (or deemed exchanges in certain circumstances) of LLC Interests by the Founders for Class A common stock or cash from the sale of newly issued shares of Class A common stock as described above under “—Redemption rights of holders of LLC Interests” and certain distributions (or deemed distributions) by Fluence Energy, LLC; and (2) certain additional tax benefits arising from payments made under the Tax Receivable Agreement. Following this offering, we expect to use distributions from Fluence Energy, LLC to fund any payments that we will be required to make under the Tax Receivable Agreement. We anticipate funding ordinary course payments under the Tax Receivable Agreement from cash flow from operations of our subsidiaries, available cash or available borrowings under any future debt agreements. Our obligations under the Tax Receivable Agreement could have a substantial negative effect on our liquidity. See “Certain Relationships and Related Party Transactions—Tax Receivable Agreement” for a discussion of the Tax Receivable Agreement.

Registration rights agreement

Pursuant to the Registration Rights Agreement, we will, subject to the terms and conditions thereof, agree to register the resale of the shares of our Class A common stock that are

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held by, issued or issuable to the Continuing Equity Owners. See “Certain Relationships and Related Party Transactions—Registration Rights Agreement” for a discussion of the Registration Rights Agreement.

Risk factors

See “Risk Factors” beginning on page 25 and other information included in this prospectus for a discussion of factors you should carefully consider before deciding to invest in shares of our Class A common stock.

Trading symbol

We have applied to list our Class A common stock on The Nasdaq Global Market under the symbol “FLNC.”

Unless we indicate otherwise or the context otherwise requires, all information in this prospectus:

•

gives effect to the amendment and restatement of the Fluence Energy LLC Agreement that converts all existing ownership interests in Fluence Energy, LLC into LLC Interests, as well as the filing of our amended and restated certificate of incorporation;

•

gives effect to the other Transactions, including the consummation of this offering;

•

excludes shares of Class A common stock reserved for issuance under options issued pursuant to the Existing Equity Plan (as defined below) which will convert upon effectiveness of this offering into options to acquire shares of Class A common stock, or shares of Class A common stock reserved for issuance under our 2021 Equity Plan, or the 2021 Plan or shares of Class A common stock that may be issued in respect of awards under the Existing Phantom Equity Plan (as defined below);

•

assumes an initial public offering price of $ per share of Class A common stock, which is the midpoint of the estimated price range set forth on the cover page of this prospectus; and

•

assumes no exercise by the underwriters of their option to purchase additional shares of Class A common stock from us.

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Summary Historical and Pro Forma Condensed Consolidated Financial and Other Data

The following tables present the summary historical consolidated financial and other data for Fluence Energy, LLC and its subsidiaries and the summary pro forma consolidated financial and other data for Fluence Energy, LLC. Fluence Energy, LLC is the predecessor of Fluence Energy, Inc. for financial reporting purposes. Fluence Energy, Inc. was formed as a Delaware corporation on June 21, 2021 and does not have historical financial results. Fluence Energy, Inc. currently has no assets or liabilities and has conducted no operations, and has not, to date, conducted any activities other than those incident to its formation, those in preparation for the Transactions and the preparation of this prospectus and the registration statement of which this prospectus forms a part. The summary consolidated statements of operations data and statements of cash flows data for the years ended September 30, 2020 and 2019, and the summary consolidated balance sheet data as of September 30, 2020 and 2019 are derived from the audited consolidated financial statements of Fluence Energy, LLC included elsewhere in this prospectus. We have derived the summary consolidated statements of operations and cash flows data for the nine months ended June 30, 2021 and June 30, 2020 from our unaudited condensed consolidated financial statements included elsewhere in this prospectus. Our summary consolidated balance sheet data as of June 30, 2021 has been derived from our unaudited condensed consolidated financial statements for such period included elsewhere in this prospectus. The unaudited consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements and, in the opinion of management, include all adjustments, consisting only of normal and recurring adjustments, necessary for a fair statement of the information set forth herein. Interim financial results are not necessarily indicative of results for the full year or any future reporting period. The results of operations for the periods presented below are not necessarily indicative of the results to be expected for any future period. The information set forth below should be read together with the “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the consolidated financial statements and the accompanying notes included elsewhere in this prospectus.

The unaudited pro forma consolidated balance sheet as of June 30, 2021 presents the consolidated financial position of Fluence Energy, LLC after giving pro forma effect to the Transactions, excluding this offering, and Fluence Energy, Inc. adjusted for this offering and the contemplated use of the net proceeds from this offering as described under “Our Organizational Structure” and “Use of Proceeds” as if such transactions had occurred as of the balance sheet date. The unaudited pro forma consolidated statements of operations for the year ended September 30, 2020 and the nine-months ended June 30, 2021 present the consolidated results of operations of Fluence Energy, LLC after giving pro forma effect to the Transactions, excluding this offering, and Fluence Energy, Inc. adjusted for this offering and the contemplated use of the net proceeds from this offering as described under “Our Organizational Structure” and “Use of Proceeds” as if such transactions had occurred on October 1, 2019. The pro forma adjustments are based on available information and upon assumptions that our management believes are reasonable in order to reflect, on a pro forma basis, the impact of the Transactions, excluding this offering, and as further adjusted for this offering, on the historical financial information of Fluence Energy, LLC. The unaudited pro forma consolidated financial information is subject to change based on the actual initial public offering price, the number of common shares sold in this offering, and other terms of this offering determined at pricing. The unaudited pro forma consolidated financial information is included for informational purposes only and does not purport to reflect the results of operations or financial position of Fluence Energy, Inc. that would have occurred had it operated according to the organizational structure set forth herein to be in place post-offering as a standalone public company during the periods presented.

The summary of our consolidated financial data set forth below and the pro forma financial data should be read together with our consolidated financial statements and our condensed consolidated interim financial statements and the related notes, as well as the sections captioned “Unaudited Pro Forma Consolidated Financial Information” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” appearing elsewhere in this prospectus.

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	Pro Forma As Adjusted(1)		Actual
	Nine Months Ended June 30, 2021		Nine Months Ended June 30,
	Nine Months Ended June 30, 2021		2021			2020
(in thousands, except unit and per unit amounts)
Consolidated Statements of Operations Data:
Total revenue		$		$	492,561		$	321,859
Cost of goods and services					502,644			325,944
Gross loss					(10,083)			(4,085)
Operating expenses:
Research and development					17,251			8,546
Sales and marketing					16,882			12,262
General and administrative					23,159			12,691
Depreciation and amortization					3,494			2,249
Other expense, net					(1,061)			(93)
Loss before income taxes					(71,930)			(39,926)
Income tax expense					2,874			5,678
Net loss		$		$	(74,804)		$	(45,604)
Net loss attributable to non-controlling interest		$
Net loss attributable to Fluence Energy, Inc.		$
Per Share Data:
Pro forma net loss per share data (unaudited):
Basic		$
Diluted		$
Pro forma weighted-average shares used to compute net loss per share:
Basic
Diluted

	Pro Forma As Adjusted(1)		Actual
	Fiscal Year Ended September 30, 2020		Fiscal Year Ended September 30,
	Fiscal Year Ended September 30, 2020		2020			2019
(in thousands, except unit and per unit amounts)
Consolidated Statements of Operations Data:
Total revenue		$		$	561,323		$	92,151
Cost of goods and services					553,400			100,068
Gross profit (loss)					7,923			(7,917)
Operating expenses:
Research and development					11,535			9,871
Sales and marketing					16,239			14,963
General and administrative					17,940			13,950
Depreciation and amortization					3,018			2,891
Other income, net					520			1,833
Loss before income taxes					(40,289)			(47,759)
Income expense (benefit)					6,421			(778)
Net loss		$		$	(46,710)		$	(46,981)
Net loss attributable to non-controlling interest		$
Net loss attributable to Fluence Energy, Inc.		$

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Pro Forma As
Adjusted(1)

Actual

Fiscal Year
Ended
September 30,
2020

Fiscal Year Ended
September 30,

2020

2019

(in thousands, except unit and per unit amounts)

Per Share Data:

Pro forma net loss per share data (unaudited):

Basic

Diluted

Pro forma weighted-average shares used to compute net loss
per share:

Basic

Diluted

	Actual						Actual			Pro Forma As Adjusted for the June 30, 2021
	As of September 30,						As of June 30, 2021
(in thousands)	2020			2019			As of June 30, 2021
							(unaudited)
Consolidated Balance Sheet Data:
Cash and cash equivalents		$	93,815		$	84,113		$	58,497
Total assets			364,025			188,804			692,976
Total liabilities			381,250			163,299			662,163
Total members’ (deficit) equity			(17,225)			25,505			(86,459)

	Actual						Actual
	Fiscal Year Ended September 30,						Nine Months Ended June 30,
	2020			2019			2021			2020
(in thousands)							(unaudited)
Statement of Cash Flows Data:
Net cash (used in) provided by operating activities		$	(14,016)		$	27,682		$	(139,277)		$	(75,865)
Net cash provided by (used in) investing activities			18,220			(22,736)			(20,999)			18,293
Net cash provided by financing activities			2,500			10,000			125,729			10,500

	Actual						Actual
	Fiscal Year Ended September 30,						Nine Months Ended June 30,
	2020			2019			2021			2020
($ in thousands)
Non-GAAP Financial Measures (unaudited)(2):
Adjusted EBITDA		$	(35,883)		$	(41,614)		$	(49,385)		$	(37,139)
Adjusted Gross Profit (Loss)		$	8,901		$	(3,437)		$	6,554		$	(3,091)
Adjusted Gross Profit Margin			1.6%			(3.7)%			1.3%			(1.0)%
Adjusted Net Loss		$	(42,459)		$	(40,022)		$	(54,017)		$	(42,750)
Free Cash Flow		$	(15,796)		$	24,946		$	(142,276)		$	(76,878)

(1)

On a pro forma basis to give effect to the Transactions, excluding this offering. See “Unaudited Pro Forma Consolidated Financial Information.” On a pro forma as adjusted basis to reflect the sale and issuance by us of shares of our Class A common stock in this offering, assuming an initial public offering

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price of $ per share, which is the midpoint of the estimated price range set forth on the cover of this prospectus, and the application of net proceeds from this offering as described under “Use of Proceeds,” as if this offering and the application of the net proceeds of this offering had occurred on October 1, 2019, in the case of Consolidated Statement of Operations Data, and June 30, 2021, in the case of Consolidated Balance Sheet Data; the Transactions; and the payment by us of estimated offering expenses of $ million. See “Unaudited Pro Forma Consolidated Financial Information.”

(2)

These measures are not prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and should not be considered in isolation from or substitutions for performance measures calculated in accordance with GAAP. For additional information about these non-GAAP financial measures and reconciliations of the non-GAAP financial measures to the most directly comparable financial measures stated in accordance with GAAP, see the section titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Non-GAAP Financial Measures.”

Adjusted EBITDA is calculated from the consolidated statements of operations using net income (loss) adjusted for (i) interest income (expense), net, (ii) income taxes, (iii) depreciation and amortization, (iv) equity-based compensation, and (v) other non-recurring income or expenses. Adjusted EBITDA may in the future also be adjusted for amounts impacting net income related to the Tax Receivable Agreement liability.

Adjusted Gross Profit (Loss) is calculated using gross profit (loss), adjusted to exclude certain non-recurring income or expenses.

Adjusted Gross Profit Margin is calculated using Adjusted Gross Profit (Loss) divided by revenue.

Adjusted Net Loss is calculated using net Loss, adjusted to exclude (i) amortization of intangibles, (ii) equity-based compensation, (iii) other non-recurring income or expenses, and (iv) tax impact of these adjustments.

Free Cash Flow is calculated from the consolidated statements of cash flows and is defined as net cash provided by operating activities, less purchase of property and equipment made in the period. We expect our Free Cash Flow to fluctuate in future periods as we invest in our business to support our plans for growth. Limitations on the use of Free Cash Flow include (i) it should not be inferred that the entire Free Cash Flow amount is available for discretionary expenditures. For example, cash is still required to satisfy other working capital needs, including short-term investment policy, restricted cash, and intangible assets; (ii) Free Cash Flow has limitations as an analytical tool, and it should not be considered in isolation or as a substitute for analysis of other GAAP financial measures, such as net cash provided by operating activities; and (iii) this metric does not reflect our future contractual commitments.

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RISK FACTORS

Investing in our Class A common stock involves a high degree of risk. You should carefully consider the risks and uncertainties described below, together with all of the other information in this prospectus, including our consolidated financial statements and the related notes, before deciding to invest in our Class A common stock. The occurrence of any of the events described below could harm our business, operating results, and financial condition. In such an event, the market price of our Class A common stock could decline, and you may lose all or part of your investment. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also impair our business. See “Cautionary Note Regarding Forward-Looking Statements.”

Risks Related to Our Business

Our limited operating and revenue history as an independent entity and our nascent industry make evaluating our business and future prospects difficult.

We were established in January 2018 as a joint venture between Siemens and AES. Since then, we have continued to evolve, including through acquisitions. While both AES and Siemens had approximately ten years of experience in battery-based energy storage before combining those businesses to create Fluence, and we benefit from the industry experience and substantial support AES and Siemens provide, we have a limited history operating our business and generating revenue as an independent entity, and therefore a limited history upon which you can base an investment decision.

Our future growth is dependent on rising demand for clean electric power solutions that can provide electric power with lower carbon emissions and replacement of conventional generation sources and the adoption speed of digital software applications to modernize the efficiency of power assets and the electric grid. Among other renewable energy market trends, we expect our business results to be driven by declines in the cost of generation of renewable power, decreases in the cost of manufacturing battery pack products, customer needs for services and digital applications, commercial, legal and political pressure for the reduced use of fossil fuels and electric power generation that relies on fossil or other non-renewable fuels, and a rapidly growing energy storage market driven by increasing demand from C&I customers, utilities, and grid operators. However, predicting our future revenue and appropriately budgeting for our expenses is difficult, and we have limited insight into trends that may emerge and affect our business.

If we are unable to attract new customers and retain existing customers, our revenue growth will be adversely affected.

To increase our revenue, our business strategy depends on our ability to attract new customers and retain existing customers. We face competition from other energy storage and digital application providers in the recruitment of potential customers. If we are unable to convince potential customers of the benefits of our services or if potential or existing customers prefer the product and service offerings of one of our competitors, we may not be able to effectively implement our growth strategy. Additionally, a significant portion of our annual sales were direct sales to AES or a result of our Siemens sales relationship. See Note 13 to our unaudited consolidated financial statements for the nine months ended June 30, 2021, “Related Party Transactions.” If we fail to maintain those relationships, or if AES or Siemens decide to reduce their energy storage activities in the future, it could impact our sales and our growth would be even more reliant on our ability to recruit new customers. Our inability to recruit new customers and retain existing customers would harm our ability to execute our growth strategy and may have a material adverse effect on our business operations and financial position.

We have experienced and may continue to experience delays, disruptions, or quality control problems in our manufacturing operations in part due to our third-party manufacturer concentration.

Our product development, manufacturing and testing protocols are complex and require significant technological and production process expertise, and we currently depend on a limited number of third-party manufacturers, including for key components of our products. As of today, we have one major contract manufacturer for the Fluence Cube and are planning to expand our set of partners in the near term. As we

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introduce new products, we plan to expand our regional manufacturing capabilities to further support customers in APAC, EMEA, and the Americas. While the risk of relying on a single vendor will diminish with regional and footprint optimization, expansion may be delayed by the process of vetting and qualifying new manufacturing partners. Further, any vendor delay or disruption could cause a delay or disruption in our ability to meet customer requirements which may result in a loss of customers. Such processes involve a number of precise steps from design to production.

Any change in our processes could cause one or more production errors, requiring a temporary suspension or delay in our production line until the errors can be researched, identified, and properly addressed and rectified. This may occur particularly as we introduce new products, modify our engineering and production techniques, and/or expand our capacity. In addition, our failure to maintain appropriate quality assurance processes could result in increased product failures, loss of customers, increased warranty reserve, or increased production and logistics costs, and delays. Any of these developments could have a material adverse effect on our business, financial condition, and results of operations.

We have experienced and may continue to experience exposure to risks associated with construction, utility interconnection, cost overruns, and delays, including those related to obtaining government permits and other contingencies that may arise in the course of completing installations.

Although we generally are not regulated as a utility, federal, state, and local government statutes and regulations concerning electricity heavily influence the market for our product and services. These statutes and regulations often relate to electricity pricing, net metering, incentives, taxation, and the rules surrounding the interconnection of customer-owned electricity generation for specific technologies. In the U.S., governments frequently modify these statutes and regulations. Governments, often acting through state utility or public service commissions, change and adopt different requirements for utilities and rates for commercial customers on a regular basis. Changes, or in some cases a lack of change, in any of the laws, regulations, ordinances, or other rules that apply to customer installations and new technology could make it more costly for our customers to install and operate our energy storage products on particular sites, and in turn could negatively affect our ability to deliver cost savings to customers for the purchase of electricity.

The installation and operation of our energy storage products at a particular site are also generally subject to oversight and regulation in accordance with national, state, and local laws and ordinances relating to building codes, safety, environmental protection, and related matters, and typically require obtaining and keeping in good standing various local and other governmental approvals and permits, including environmental approvals and permits, that vary by jurisdiction. In some cases, these approvals and permits require periodic renewal. It is difficult and costly to track the requirements of every individual authority having jurisdiction over energy storage product installations, to design our energy storage products to comply with these varying standards, and for our customers to obtain all applicable approvals and permits. We cannot predict whether or when all permits required for a given customer’s project will be granted or whether the conditions associated with the permits will be achievable. The denial of a permit or utility connection essential to a project or the imposition of impractical conditions would impair our customer’s ability to develop the project. In addition, we cannot predict whether the permitting process will be lengthened due to complexities and appeals. Delay in the review and permitting process for a project can impair or delay our customers’ abilities to develop that project or increase the cost so substantially that the project is no longer attractive to our customers. Furthermore, unforeseen delays in the review and permitting process could delay the timing of the installation of our energy storage products and could therefore adversely affect the timing of the recognition of revenue related to hardware acceptance by our customer, which could adversely affect our operating results in a particular period.

The production and installation of our energy storage products also involves the incurrence of various project costs and can entail project modifications. We have policies and procedures regarding the approval of project costs and modifications. In connection with our limited operating history and our significant growth, we have in the past experienced and may in the future experience incurrence of project costs without proper documentation or adhering to our policies and procedures. We have implemented additional training on our policies and procedures in this regard. In addition, disagreements with our customers and suppliers have arisen and may in the future arise with respect to project schedules, work and modifications, which can result in the need to find different suppliers, loss of future business, additional costs to us and not realizing the anticipated profit from the project.

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In addition, the successful installation of our energy storage products is dependent upon the availability of and timely connection to the local electric grid. Our customers may be unable to obtain the required consent and authorization of local utilities to ensure successful interconnection to energy grids to enable the successful discharge of renewable energy. Any delays in our customers’ ability to connect with utilities, delays in the performance of installation-related services, or poor performance of installation-related services will have an adverse effect on our results and could cause operating results to vary materially from period to period.

The interruption of the flow of components and materials from international vendors could disrupt our supply chain, including as a result of the imposition of additional duties, tariffs, and other charges on imports and exports.

We purchase some of our components and materials outside of the United States through arrangements with various vendors, and have experienced delays in obtaining these components and materials as a result of the recent coronavirus pandemic (“COVID-19 pandemic”). Political, social, or economic instability in these regions, or in other regions where our products are made, could cause future disruptions in trade. Actions in various countries have created uncertainty with respect to tariff impacts on the costs of some of our components and materials. The degree of our exposure is dependent on (among other things) the type of materials, rates imposed, and timing of the tariffs. Other events that could also cause disruptions to our supply chain include:

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the imposition of additional trade law provisions or regulations;

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the imposition of additional duties, tariffs and other charges on imports and exports, including as a result of the escalating trade war between China and the United States;

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quotas imposed by bilateral trade agreements;

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foreign currency fluctuations;

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logistics and shipping constraints;

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natural disasters;

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public health issues and epidemic diseases, their effects (including any disruptions they may cause) or the perception of their effects;

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theft;

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restrictions on the transfer of funds;

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the financial instability or bankruptcy of vendors; and

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significant labor disputes, such as dock strikes.

We cannot predict whether the countries in which our components and materials are sourced, or may be sourced in the future, will be subject to new or additional trade restrictions imposed by the United States or other foreign governments, including the likelihood, type, or effect of any such restrictions. Trade restrictions, including new or increased tariffs or quotas, border taxes, embargoes, safeguards, and customs restrictions against certain components and materials, as well as labor strikes and work stoppages or boycotts, could increase the cost or reduce or delay the supply of components and materials available to us and adversely affect our business, financial condition or results of operations.

Significant changes in the cost of raw materials or to logistic cost could adversely affect our financial performance.

We are subject to risk from fluctuating market prices of certain commodity raw materials, including steel and aluminum, that are used in our products. Prices of these raw materials may be affected by supply restrictions or other logistic costs market factors from time to time, and we do not enter into hedging arrangements to mitigate commodity risk. Significant price changes for these raw materials could reduce our operating margins if we are unable to recover such increases from our customers, and could harm our business, financial condition, and results of operations.

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Failure by our vendors or our component or raw material suppliers to use ethical business practices and comply with applicable laws and regulations may adversely affect our business.

We do not control our vendors or suppliers or their business practices. Accordingly, we cannot guarantee that they follow ethical business practices, such as fair wage practices and compliance with environmental, safety, and other local laws. A lack of demonstrated compliance could lead us to seek alternative manufacturers or suppliers, which could increase our costs and result in delayed delivery of our products, product shortages, or other disruptions of our operations. Violation of labor or other laws by our manufacturers or suppliers or the divergence of a supplier’s labor or other practices from those generally accepted as ethical in the U.S. or other markets in which we do business could also attract negative publicity for us and harm our business.

We face supply chain competition and, in some instances, have entered into long-term supply agreements that could result in insufficient inventory and negatively affect our results of operations.

We have entered into long-term supply agreements with certain suppliers and contract manufacturers of batteries, inverters, and other components of our energy storage products. Some of these supply agreements provide for fixed or inflation-adjusted pricing, substantial prepayment obligations, and commitments to continue purchasing certain levels of components in future periods regardless of the level of demand we receive from customers. If our suppliers provide insufficient inventory at the level of quality required to meet customer demand, or if our suppliers are unable or unwilling to provide us with the contracted quantities, as we have limited alternatives for supply in the short term, our results of operations could be materially and negatively impacted. If our customers do not provide sufficient demand to purchase the levels of inventory we have committed to purchasing in future periods, our ability to generate revenue or cash flows may be limited.

Further, we face significant specific counterparty risk under long-term supply agreements when dealing with certain suppliers without a long, stable production and financial history. Given the uniqueness of our product, many of our suppliers do not have a long operating history and may not have substantial capital resources. In the event any such supplier experiences financial difficulties, it may be difficult or may require substantial time and expense to replace such supplier. We do not know whether we will be able to maintain long-term supply relationships with our critical suppliers, or secure new long-term supply agreements. Additionally, many of the battery storage products and components of our energy storage products are procured from foreign suppliers, which exposes us to risks including unforeseen increases in costs or interruptions in supply arising from changes in applicable international trade regulations, such as taxes, tariffs, or quotas. Any of the foregoing could materially adversely affect our business, financial condition, and results of operations.

Certain of our suppliers also supply products and components to other businesses, including businesses engaged in the production of electric vehicles, consumer electronics and other industries unrelated to energy storage products. As a relatively low-volume purchaser of certain of these parts and materials, we may be unable to procure a sufficient supply of the items on favorable terms or at all, in the event that our suppliers fail to produce sufficient quantities to satisfy the demands of all of their customers, which could materially adversely affect our business, financial condition, and results of operations.

If any energy storage products provided to our customers contain manufacturing defects, our business and financial results could be adversely affected.

The energy storage products we develop are complex energy solutions. We rely on our component OEM suppliers and contract manufacturers to control the quality of certain components that make up the energy storage products sold to our customers. We do not manufacture the batteries or other components of the energy storage products. As a result, our ability to seek recourse for liabilities and recover costs from our component OEM suppliers and contract manufacturers depends on our contractual rights as well as the financial condition and integrity of such component OEM suppliers and contract manufacturers that supply us with the batteries and other components of our energy storage products. Such products may contain undetected or latent errors or defects. We provide installation, construction and commissioning services for our customers that purchase our products. In the past, we have from time to time discovered latent defects in energy storage products, and have experienced defects in workmanship. In connection with such defects in

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the future, we could incur significant expenses or disruptions of our operations. Any manufacturing defects or other failures of our energy storage products to perform as expected could cause us to incur significant re-engineering costs, divert the attention of our personnel from operating and maintenance efforts, expose us to adverse regulatory action, and significantly and adversely affect customer satisfaction, market acceptance, and our business reputation. Furthermore, our component OEM suppliers and contract manufacturers may be unable to correct manufacturing defects or other failures of any energy storage products in a manner satisfactory to our customers, which could adversely affect customer satisfaction, market acceptance, and our business reputation.

On rare occasions, lithium-ion batteries can rapidly release the energy they contain by venting smoke and flames in a manner that can ignite nearby materials as well as other lithium-ion batteries. This faulty result could subject us to lawsuits, product recalls, or redesign efforts, all of which would be time consuming and expensive. For example, in April 2019, the McMicken energy storage facility in Arizona experienced a thermal event and subsequent explosion, injuring several first responders and making the facility inoperable. The facility was built by AES prior to the creation of Fluence, and was under a maintenance contract with Fluence. The response and investigation required significant expense and the devotion of significant management time. Also, negative public perceptions regarding the suitability of lithium-ion batteries for energy applications or any future incident involving lithium-ion batteries, such as a plant, vehicle or other fire, even if such incident does not involve hardware provided by us, could adversely affect our business and reputation.

A loss of one or more of our significant customers, including but not limited to AES and Siemens, their inability to perform under their contracts, or their default in payment could harm our business and negatively impact revenue, results of operations, and cash flow.

We are dependent on a relatively small number of customers for our sales, and a small number of customers have historically accounted for a material portion of our revenue. The loss of any one of the Company’s significant customers, their inability to perform under their contracts, or their default in payment could have a materially adverse effect on the revenues and profits of the Company. For the near future, we may continue to derive a significant portion of our net sales from a small number of customers. For the year ended September 30, 2020, our top five customers, in the aggregate, accounted for approximately 90% of our revenue. Accordingly, loss of a significant customer or a significant reduction in pricing or order volume from a significant customer could materially reduce net sales and operating results in any reporting period.

If we fail to manage our recent and future growth effectively, we may be unable to execute our business plan, maintain high levels of customer service, or adequately address competitive challenges.

We have experienced significant growth in recent periods. We intend to continue to expand our business significantly within existing and new market segments. This growth has placed, and any future growth may place, a significant strain on our management, operational, and financial infrastructure. In particular, we will be required to expand, train, and manage our growing employee base and scale and otherwise improve our IT infrastructure in tandem with that headcount growth. Our management will also be required to maintain and expand our relationships with customers, suppliers, channel partners, and other third parties and attract new customers and suppliers, as well as manage multiple geographic locations. Our current and planned operations, personnel, IT, and other systems and procedures might be inadequate to support our future growth and may require us to make additional unanticipated investment in our infrastructure. Our success and ability to further scale our business will depend, in part, on our ability to manage these changes in a cost-effective and efficient manner. If we cannot manage our growth, we may be unable to take advantage of market opportunities, execute our business strategies, or respond to competitive pressures. This could also result in declines in quality or customer satisfaction, increased costs, difficulties in introducing new offerings, or other operational difficulties. Any failure to effectively manage growth could adversely impact our business and reputation.

If we are not able to maintain and enhance our reputation and brand recognition, our business and results of operations will be harmed.

We believe that maintaining and enhancing our reputation and brand recognition is critical to our relationships with customers. The promotion of our brand may require us to make substantial investments,

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and we anticipate that, as our market becomes increasingly competitive, these marketing initiatives may become increasingly difficult and expensive. Our marketing activities may not be successful or yield increased revenue, and to the extent that these activities yield increased revenue, the increased revenue may not offset the expenses we incur, and our results of operations could be harmed. In addition, any factor that diminishes our reputation or that of our management, including failing to meet the expectations of or provide quality products and services to our customers, or any adverse publicity or litigation involving or surrounding us, one of our centers, or our management, could make it substantially more difficult for us to attract new customers. If we do not successfully maintain and enhance our reputation and brand recognition, our business may not grow, and we could lose our relationships with customers, which would harm our business, results of operations, and financial condition.

Our growth depends in part on the success of our relationships with third parties.

We rely on third-party general contractors to install energy storage products at our customers’ sites. We currently work with a limited number of general contractors, which has impacted and may continue to impact our ability to facilitate customer installations as planned. Our work with contractors or their subcontractors may have the effect of our being required to comply with additional rules (including rules unique to our customers), working conditions, site remediation, and other union requirements, which can add costs and complexity to an installation project. The timeliness, thoroughness, and quality of the installation-related services performed by our general contractors and their subcontractors in the past have not always met our expectations or standards and in the future may not meet our expectations and standards, and it may be difficult to find and train third-party general contractors that meet our standards at a competitive cost.

In addition, a key component of our growth strategy is to develop or expand our relationships with third parties. For example, we are investing resources in establishing strategic relationships with market players across a variety of industries, including large renewable project developers, to generate new customers. These programs may not roll out as quickly as planned or produce the results we anticipated. A significant portion of our business depends on attracting new counterparties and retaining existing counterparties. Negotiating relationships with our counterparties, investing in due diligence efforts with potential counterparties, training such third parties and contractors, and monitoring them for compliance with our standards requires significant time and resources and may present greater risks and challenges than expanding a direct sales or installation team. If we are unsuccessful in establishing or maintaining our relationships with these third parties, our ability to grow our business and address our market opportunity could be impaired. Even if we are able to establish and maintain these relationships, we may not be able to execute on our goal of leveraging these relationships to meaningfully expand our business, brand recognition and customer base. Such circumstance would limit our growth potential and our opportunities to generate significant additional revenue or cash flows.

We depend on our senior management team and other key employees, and the loss of one or more of these employees or an inability to attract and retain other highly skilled employees could harm our business.

Our success depends largely upon the continued services of our senior management team and other key employees. We rely on our leadership team in the areas of sales and operations, information technology and security, marketing, and general and administrative functions. From time to time, there may be changes in our executive management team resulting from the hiring or departure of executives, which could disrupt our business. Our executive officers and other key personnel are not subject to any restrictions that would require them to continue to work for us for any specified period and, therefore, they could terminate their employment with us at any time. The loss of one or more of the members of our senior management team, or other key employees, could harm our business. Changes in our executive management team may also cause disruptions in, and harm to, our business. See “—We must attract and retain highly qualified personnel in order to execute our growth plan.”

We must attract and retain highly qualified personnel in order to execute our growth plan.

Competition for highly qualified personnel is intense. We have, from time to time, experienced, and we expect to continue to experience, difficulty in hiring and retaining employees with appropriate qualifications. Many of the companies with which we compete for experienced personnel have greater resources than we

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have. If we hire employees from competitors or other companies, their former employers may attempt to assert that these employees or we have breached certain legal obligations, resulting in a diversion of our time and resources. If we fail to attract new personnel or fail to retain and motivate our current personnel, our business and future growth prospects could be harmed.

Our products and technology could have undetected defects, errors, or bugs in hardware or software which could reduce market adoption, damage our reputation with current or prospective customers and/or expose us to product liability and other claims that could materially and adversely affect our business.

We may be subject to claims that our hardware and software-enabled services have malfunctioned and persons were injured or purported to be injured. Any insurance that we carry may not be sufficient or it may not apply to all situations. Similarly, to the extent that such malfunctions are related to components obtained from third-party vendors, such vendors may not assume responsibility for such malfunctions. In addition, our customers could be subjected to claims as a result of such incidents and may bring legal claims against us to attempt to hold us liable. Any of these events could adversely affect our brand, relationships with customers, operating results, or financial condition. For example, on September 4, 2021, a 300 MW energy storage facility owned by one of our customers experienced an overheating event. Fluence served as the energy storage technology provider and installed the facility, which was completed earlier in fiscal year 2021. No injuries were reported from the incident. The facility has been taken offline as teams from Fluence, our customer, and the battery manufacturer investigate the incident. We are currently not able to estimate the impact, if any, that this incident may have on our reputation or financial results, or on market adoption of our products.

Furthermore, our products and technology platform are complex and developed by many employees with various components of hardware and software sourced from third-parties. Our products and software have contained design and manufacturing-related defects and errors and may in the future contain undetected defects or errors. Our installation and construction work have contained and in the future may contain workmanship errors. We are continuing to evolve the features and functionality of our products and technology platform through updates and enhancements, and as we do, we may introduce additional defects or errors that may not be detected until after deployment to customers through our hardware. In addition, if our hardware and software-enabled services, including any updates or patches, are not implemented or used correctly or as intended, inadequate performance, data breaches, and disruptions in service may result.

In particular, the Fluence Bidding Application delivers artificial intelligence-enabled bidding software for utility-scale storage and renewable generation assets, enabling customers to optimize asset trading in wholesale electricity markets. While we generally are not regulated as a utility or a broker-dealer, customers of the Fluence Bidding Application are regulated utilities. We could experience scrutiny from regulators for providing the Fluence Bidding Application to our customers.

Any defects or errors in product or services offerings, or the perception of such defects or errors, or other performance problems could result in any of the following, each of which could adversely affect our business, financial condition, and results of operations:

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expenditure of significant financial and product development resources, including recalls, in efforts to analyze, correct, eliminate, or work around errors or defects;

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loss of existing or potential customers or partners;

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interruptions or delays in sales;

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delayed or lost revenue;

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delay or failure to attain market acceptance;

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delay in the development or release of new functionality or improvements;

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negative publicity and reputational harm;

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sales credits or refunds;

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security vulnerabilities, data breaches, and exposure of confidential or proprietary information;

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diversion of development and customer service resources;

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breach of warranty claims;

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legal claims under applicable laws, rules, and regulations; and

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the expense and risk of litigation.

Although we have contractual protections, such as warranty disclaimers and limitation of liability provisions, in many of our agreements with customers, resellers, and other business partners, such protections may not be uniformly implemented in all contracts and, where implemented, may not fully or effectively protect from claims by customers, resellers, business partners or other third parties. Any insurance coverage or indemnification obligations of suppliers may not adequately cover all such claims, or cover only a portion of such claims. A successful product liability, warranty, or other similar claim could have an adverse effect on our business, financial condition, and operating results. In addition, even claims that ultimately are unsuccessful could result in expenditure of funds in litigation, divert management’s time and other resources, and cause reputational harm.

Compromises, interruptions, or shutdowns of our systems, including those managed by third parties, whether intentional or inadvertent, could lead to delays in our business operations and, if significant or extreme, affect our results of operations.

From time to time, our systems require modifications and updates, including by adding new hardware, software, and applications; maintaining, updating, or replacing legacy programs; and integrating new service providers and adding enhanced or new functionality. Although we are actively selecting systems and vendors and implementing procedures to enable us to maintain the integrity of our systems when we modify them, there are inherent risks associated with modifying or replacing systems, and with new or changed relationships, including accurately capturing and maintaining data, realizing the expected benefit of the change, and managing the potential disruption of the operation of the systems as the changes are implemented. Potential issues associated with implementation of these technology initiatives could reduce the efficiency of our operations in the short term. The efficient operation and successful growth of our business depends upon our information technology systems. The failure of our information technology systems and the third-party systems we rely on to perform as designed, or our failure to implement and operate them effectively, could disrupt our business or subject us to liability and thereby have a material adverse effect on our business, financial condition, results of operations, and prospects.

Our current and planned foreign operations could subject us to additional business, financial, regulatory, and competitive risks.

We sell our products in a number of different countries, including the United States, the United Kingdom, multiple EU countries, Australia, and the Philippines. We have in the past, and may in the future, evaluate opportunities to expand into new geographic markets and introduce new product offerings and services that are a natural extension of our existing business. We also may from time to time engage in acquisitions of businesses or product lines with the potential to strengthen our market position, enable us to enter attractive markets, expand our technological capabilities, or provide synergy opportunities.

Our success operating in these new geographic or product markets, or in operating any acquired business, will depend on a number of factors, including our ability to develop solutions to address the requirements of the battery energy storage industry, our timely qualification and certification of new products, our ability to manage increased manufacturing capacity and production, and our ability to identify and integrate any acquired businesses.

Further, any additional markets that we may enter could have different characteristics from the markets in which we currently sell products, and our success will depend on our ability to adapt properly to these differences. These differences may include regulatory requirements, including tax laws, trade laws, labor regulations, tariffs, export quotas, customs duties, or other trade restrictions, limited or unfavorable intellectual property protection, international, political, or economic conditions, restrictions on the repatriation of earnings, longer sales cycles, warranty expectations, product return policies, and cost, performance, and compatibility requirements. In addition, expanding into new geographic markets will increase our exposure

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to presently existing and new risks, such as fluctuations in the value of foreign currencies and difficulties and increased expenses in complying with United States and foreign laws, regulations, and trade standards, including the Foreign Corrupt Practices Act of 1977, as amended.

Tax laws and regulations in various jurisdictions where we currently operate or may operate in the future also could result in additional tax liabilities for us or otherwise adversely affect us. See the discussion under “—Changes in tax laws or regulations that are applied adversely to us or our customers could materially adversely affect our business, financial condition, results of operations and prospects.” below.

Failure to develop and introduce new products successfully into the market, to successfully integrate acquired businesses or to otherwise manage the risks and challenges associated with our potential expansion into new product and geographic markets, could adversely affect our revenues and our ability to sustain profitability.

Amounts included in our pipeline and contracted backlog may not result in actual revenue or translate into profits.

As of June 30, 2021, our pipeline, which represents potential contracts where we either have been selected by the customer or have provided the customer a quote or bid, but for which the contracts have not been signed, was 13.3 GW compared to 11.3 GW as of September 30, 2020. As of September 30, 2021, we estimated that we had between approximately $ million and $ million of contracted backlog. We define “contracted backlog” as signed purchase orders or contractual minimum purchase commitments with take-or pay provisions. For our energy storage product contracts, contracted backlog includes signed customer orders or contracts under execution prior to when substantial completion is achieved. For service contracts, contracted backlog includes signed service agreement associated with our storage product projects that have not been completed. For digital applications contracts, contracted backlog includes signed agreements where the associated subscription has not started.

Our pipeline and contracted backlog are based on numerous assumptions and limitations, are calculated using our internal data that have not been independently verified by third parties and may not provide an accurate indication of our future or expected results. Pipeline and contracted backlog are internal management metrics that we construct from market information reported by our global sales force. We monitor and track our pipeline and contracted backlog, but they are not maintained or audited in accordance with U.S. GAAP. Although the amount of contracted backlog includes signed purchase orders or other contractual commitments and the amount of pipeline includes potential future orders, we cannot guarantee that our pipeline or contracted backlog will result in actual revenue in the originally anticipated period or at all. Our customers operate in a relatively new industry and have based their commitments to us on assumptions about future energy prices, demand levels, regulatory obligations and incentives, among other factors. Further, certain of those customers may need to obtain financing to fulfill their commitments to us. If the market does not grow as expected, the regulatory environment changes, or customers fail to obtain necessary financial backing, customers may fail to satisfy their minimum purchase commitments to us and we would fail to realize our contracted backlog. In that event, our revenue and profitability could be adversely affected. Our pipeline or contracted backlog may not generate margins equal to our historical operating results. We have only recently begun to track our pipeline and contracted backlog on a consistent basis, and as a result, we do not have significant experience in determining the level of realization that we will achieve on these contracts. Our customers may experience project delays or cancel orders as a result of external market factors and economic or other factors beyond our control. If our pipeline or backlog fails to result in revenue at all or in a timely manner, we could experience a reduction in revenue, profitability, and liquidity. See the sections titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Key Operating Metrics—Pipeline” for additional information regarding our pipeline and “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Key Factors And Trends” for additional information regarding our pipeline and contracted backlog.

Our hardware and software-enabled services involve a lengthy sales and installation cycle, and if we fail to close sales on a regular and timely basis it could adversely affect our business, financial condition, and results of operations.

Our sales cycle is typically three (3) to twelve (12) months for our hardware and software-enabled services but can vary considerably. In order to make a sale, we must typically provide a significant level of education to prospective customers regarding the use and benefits of our hardware and software-enabled services.

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The period between initial discussions with a potential customer and the sale of even a single energy storage product typically depends on a number of factors, including the potential customer’s budget and decision as to the type of financing it chooses to use, as well as the arrangement of such financing. Prospective customers often undertake a significant evaluation process, which may further extend the sales cycle. This lengthy sales and installation cycle is subject to a number of significant risks over which we have little or no control. Because of both the long sales and installation cycles, we may expend significant resources without having certainty of generating a sale.

These lengthy sales and installation cycles increase the risk that our customers may fail to satisfy their payment obligations, cancel orders before the completion of the transaction, or delay the planned date for installation. Cancellation rates may be impacted by factors outside of our control including an inability to install an energy storage product at the customer’s chosen location because of permitting or other regulatory issues, unanticipated changes in the cost or availability of alternative sources of electricity available to the customer, or other reasons unique to each customer. Our operating expenses are based on anticipated sales levels, and many of our expenses are fixed. If we are unsuccessful in closing sales after expending significant resources or if we experience delays or cancellations, our business, financial condition, and results of operations could be adversely affected.

Additionally, we have long-term, multi-year service contracts with some of our customers. If those contracts are terminated or if we are unable to continue to fulfill the obligations under such contracts, our business, financial condition, and results of operations could be adversely affected.

Any failure to offer high-quality technical support services may adversely affect our relationships with our customers and adversely affect our financial results.

Our customers depend on our support organization to resolve any technical issues relating to our hardware and software-enabled services. In addition, we have, in some instances, provided performance guarantees for our products and services to our customers. Any failure meet such guarantees or to maintain high-quality and highly-responsive technical support, or a market perception that we do not maintain high-quality and highly-responsive support, could adversely affect our reputation, our ability to sell our products to existing and prospective customers, and our business, financial condition, and results of operations.

We offer technical support services with our hardware and software-enabled services and may be unable to respond quickly enough to accommodate short-term increases in demand for support services, particularly as we increase the size of our customer base. We also may be unable to modify the format of our support services to compete with changes in support services provided by competitors. It is difficult to predict demand for technical support services and if demand increases significantly, we may be unable to provide satisfactory support services to our customers. Additionally, increased demand for these services, without corresponding revenue, could increase costs and adversely affect our business, financial condition, and results of operations.

We may experience difficulties in establishing mass manufacturing capacity and estimating potential cost savings and efficiencies from anticipated improvements to our manufacturing capabilities.

While our manufacturing output achieved to date is already at commercial scale, it is a fraction of what we expect will be necessary to fully meet the demand we see in the market for our products. The manufacturing process for our expected full commercial scale is still being refined and improved. There are risks associated with scaling up manufacturing to larger commercial volumes including, among others, technical or other problems with process scale-up, process reproducibility, stability issues, quality consistency, timely availability of raw materials, cost overruns, and adequate definitions or qualifications for safety, reliability, and quality. In addition, in connection with our limited operating history and our significant growth, we have in the past experienced and may in the future experience incurrence of project costs without proper documentation or adhering to our policies and procedures. There is no assurance that our manufacturers will be successful in establishing a larger-scale commercial manufacturing process that achieves our objectives for manufacturing capacity and cost per battery, in a timely manner or at all. If we are unable to produce sufficient quantities of

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product on a timely basis and in a cost-effective manner, the Company’s commercialization efforts would be impaired which could materially affect our business, financial condition, results of operations, and growth prospects.

If our estimates of useful life for our energy storage products and related hardware and software-enabled services are inaccurate or if our component OEM suppliers do not meet service and performance warranties and guarantees, our business and financial results could be adversely affected.

We sell hardware and software-enabled services to our customers. Our software-enabled services are essential to the operation of these hardware products. Our pricing of services contracts is based upon the value we expect to deliver to our customers, including considerations such as the useful life of the energy storage product and prevailing electricity prices. We also provide warranties and guarantees covering the efficiency and performance of certain of our products and digital applications, in some cases up to 25 years in length. We do not have a long history with a large number of field deployments, and our estimates may prove to be incorrect. Failure to meet these performance warranties and guarantee levels may require us to refund our service contract payments to the customer or require us to make cash payments to the customer based on actual performance, as compared to expected performance.

As part of growing our business, we have made and expect to continue to make acquisitions. If we fail to successfully select, execute, or integrate our acquisitions, then our business and operating results could be harmed and our stock price could decline.

We will continuously evaluate potential acquisitions to add new product lines and technologies, gain new sales channels, or enter into new sales territories. For example, in 2020, we acquired AMS’ software and digital intelligence platform, which became the Fluence Bidding Application. Acquisitions involve numerous risks and challenges, including but not limited to the following:

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integrating the companies, assets, systems, products, sales channels, and personnel that we acquire;

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higher than anticipated acquisition and integration costs and expenses;

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reliance on third parties to provide transition services for a period of time after closing to ensure an orderly transition of the business;

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growing or maintaining revenues to justify the purchase price and the increased expenses associated with acquisitions;

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entering into territories or markets with which we have limited or no prior experience;

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establishing or maintaining business relationships with customers, vendors, and suppliers who may be new to us;

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overcoming the employee, customer, vendor, and supplier turnover that may occur as a result of the acquisition;

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disruption of, and demands on, our ongoing business as a result of integration activities including diversion of management’s time and attention from running the day to day operations of our business;

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inability to implement uniform standards, disclosure controls and procedures, internal controls over financial reporting, and other procedures and policies in a timely manner;

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inability to realize the anticipated benefits of or successfully integrate with our existing business the businesses, products, technologies or personnel that we acquire; and

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potential post-closing disputes.

As part of undertaking an acquisition, we may also significantly revise our capital structure or operational budget, such as issuing common stock that would dilute the ownership percentage of our stockholders, assuming liabilities or debt, utilizing a substantial portion of our cash resources to pay for the acquisition, or significantly increasing operating expenses. In addition, our effective tax rate in any particular quarter may also be impacted by acquisitions. Following the closing of an acquisition, we may also have disputes with the seller regarding contractual requirements and covenants, purchase price

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adjustments, contingent payments, or for indemnifiable losses. Any such disputes may be time consuming and distract management from other aspects of our business. In addition, if we increase the pace or size of acquisitions, we will have to expend significant management time and effort into the transactions and integrations, and we may not have the proper human resources bandwidth to ensure successful integrations and accordingly, our business could be harmed or the benefits of our acquisitions may not be realized.

As part of the terms of an acquisition, we may commit to pay additional contingent consideration if certain revenue or other performance milestones are met. We are required to evaluate the fair value of such commitments at each reporting date and adjust the amount recorded if there are changes to the fair value.

We cannot ensure that we will be successful in identifying, selecting, executing, and integrating acquisitions. Failure to manage and successfully integrate acquisitions could materially harm our business and operating results. In addition, if stock market analysts or our stockholders do not support or believe in the value of the acquisitions that we choose to undertake, our stock price may decline.

Our customer relationships, business, financial results and reputation may be adversely impacted due to events and incidents relating to storage, delivery, installation, operation and shutdowns of our energy storage products, including events and incidents outside of our control. We are subject to various risks as a result of the size, weight, nature and sophisticated nature of our energy storage products, including exposure to production, delivery, supply chain, inventory, installation and maintenance issues. Such issues may, and from time to time have, result in financial losses, including losses resulting from our failure to deliver or install our energy storage products on a contractually agreed timeframe, or losses resulting from agreed warranty or indemnity terms. Furthermore, issues and incidents involving our customers or their facilities at which our energy storage products are located, whether or not attributable to our energy storage products, may have an adverse effect on our reputation and customer relationships. Any of these developments could have a material adverse effect on our business, financial condition, and results of operations. For example, on September 4, 2021, a 300 MW energy storage facility owned by one of our customers experienced an overheating event. Fluence served as the energy storage technology provider and installed the facility, which was completed earlier in fiscal year 2021. No injuries were reported from the incident. The facility has been taken offline as teams from Fluence, our customer, and the battery manufacturer investigate the incident. We are currently not able to estimate the financial impact, if any, that this incident may have on our financial results.

We may acquire companies for both strategic and financial reasons but may not realize a return on our investments.

We have acquired, and plan to continue to seek to acquire, other companies to further our strategic objectives and support our key business initiatives. These investments may include acquiring equity or debt instruments of public or private companies which may be non-marketable at the time of our initial investment. We do not restrict the types of companies which we might seek to acquire. These companies may range from early-stage companies that are often still defining their strategic direction to more mature companies with established revenue streams and business models. We must also analyze tax, accounting, and legal issues when making these acquisitions. If we do not structure these acquisitions properly, we may be subject to certain unfavorable accounting or tax impact.

We face risks related to actual or threatened health epidemics, such as the COVID-19 pandemic, and other outbreaks, which could significantly disrupt our suppliers’ manufacturing and our operations.

Our business could be adversely impacted by the effects of a widespread outbreak of contagious disease, including the recent outbreak of respiratory illness caused by the COVID-19 pandemic. Any widespread outbreak of contagious diseases, and other adverse public health developments, could cause disruption to, among other things, our ground operations at project sites, our manufacturing facilities and our suppliers and vendors located in the United States, Asia and elsewhere and have a material and adverse effect on our business operations. Our ground operations at project sites, our manufacturing facilities and

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our suppliers and vendors could be disrupted by worker absenteeism, quarantines, shortage of the COVID-19 pandemic test kits and personal protection equipment for employees, office and factory closures, disruptions to ports and other shipping infrastructure, or other travel or health-related restrictions. If our ground operations at project sites, our manufacturing facilities and our suppliers or vendors are so affected, our supply chain, manufacturing and product shipments will be delayed, which could adversely affect our business, operations and customer relationships. For example, our suppliers and vendors in Asia have been affected by business closures and disruptions to ports and other shipping infrastructure. In addition, the macroeconomic effects of the COVID-19 pandemic in the United States and other markets has resulted in a widespread health crisis that has adversely affected the economies and financial markets of many countries, resulting in an economic downturn that could affect demand for our products and impact our operating results.

Given the ongoing and dynamic nature of the circumstances, it is difficult to predict the full impact of the COVID-19 pandemic on our business. The extent of such impact will depend on future developments, which are highly uncertain, including when the COVID-19 pandemic can be controlled and abated. Further, while jurisdictions in which we operate have gradually allowed the reopening of businesses and other organizations and removed the sheltering restrictions, it is premature to assess whether doing so will result in a meaningful increase in economic activity and the impact of such actions on further the COVID-19 pandemic cases.

We are monitoring the recent global health emergency driven by the potential impact of the COVID-19 pandemic, along with global supply and demand dynamics. The extent to which these events may impact our business will depend on future developments, which are highly uncertain and cannot be predicted at this time.

We have encountered and could encounter in the future project delays and resulting liquidated damages claims from customers due to impacts on suppliers, customers, or others. The duration and intensity of these impacts and resulting disruption to our operations is uncertain and continues to evolve as of the date of this filing. Accordingly, management will continue to monitor the impact of the global situation on its financial condition, liquidity, operations, suppliers, industry, and workforce.

To the extent the COVID-19 pandemic adversely affects our financial condition, operating results and cash flows, it may also have the effect of heightening many of the other risks described in this “Risk Factors” section, such as those relating to our high level of indebtedness, our need to generate sufficient cash flows to service our indebtedness and our ability to comply with the covenants contained in the agreements that govern our indebtedness.

Risks Related to Our Industry

If renewable energy technologies are not suitable for widespread adoption or sufficient demand for our hardware and software-enabled services does not develop or takes longer to develop than we anticipate, our sales may decline, and we may be unable to achieve or sustain profitability.

The market for renewable, distributed energy generation is emerging and rapidly evolving, and its future success is uncertain. If renewable energy generation proves unsuitable for widespread commercial deployment or if demand for our renewable energy hardware and software-enabled services fails to develop sufficiently, we would be unable to achieve sales and market share.

Many factors may influence the widespread adoption of renewable energy generation and demand for our hardware and software-enabled services, including, but not limited to, the cost-effectiveness of renewable energy technologies as compared with conventional and competitive technologies, the performance and reliability of renewable energy products as compared with conventional and non-renewable products, fluctuations in economic and market conditions that impact the viability of conventional and competitive alternative energy sources, increases or decreases in the prices of oil, coal and natural gas, continued deregulation of the electric power industry and broader energy industry, and the availability or effectiveness of government subsidies and incentives. You should consider our prospects in light of the risks and uncertainties emerging companies encounter when introducing new products and services into a nascent industry.

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The growth and profitability of our business is dependent upon the continued decline in the cost of battery storage. Over the last decade the cost of battery storage products, particularly lithium-ion based battery storage products, have declined significantly. This lower cost has been driven by advances in battery technology, maturation of the battery supply chain, the scale of battery production by the leading manufacturers and other factors. The growth of our hardware sales and related software-enabled services is dependent upon the continued decrease in the price and efficiency of battery storage products of our component OEM suppliers. If for any reason our component OEM suppliers are unable to continue to reduce the price of their battery storage products, our business and financial condition will be negatively impacted.

If the estimates and assumptions we use to determine the size of our total addressable market are inaccurate, our future growth rate may be affected, and the potential growth of our business may be limited.

Market estimates and growth forecasts are subject to significant uncertainty and are based on assumptions and estimates that may prove to be inaccurate. Even if the market in which we compete meets our size estimates and forecasted growth, our business could fail to grow at similar rates, if at all. The assumptions relating to our market opportunity include, but are not limited to, the following: (i) according to BloombergNEF, global energy storage capacity grew 63% per annum between 2015 and 2020 and is expected to grow at a further 41% annual growth rate through 2025; (ii) declines in lithium-ion battery costs and in the cost of renewable generation; (iii) growing demand for renewable energy; and (iv) increased complexity of the electrical grid. Our market opportunity is also based on the assumption that our existing and future offerings will be more attractive to our customers and potential customers than competing products and services. If these assumptions prove inaccurate, our business, financial condition, and results of operations could be adversely affected. For more information regarding our estimates of market opportunity and the forecasts of market growth included herein, see the section entitled “Business.”

The economic benefit of our energy storage products to our customers depends on the cost of electricity available from alternative sources, including local electric utility companies, which cost structure is subject to change.

The economic benefit of our energy storage products to our customers includes, among other things, the benefit of reducing such customer’s payments to the local electric utility company. The rates at which electricity is available from a customer’s local electric utility company is subject to change and any changes in such rates may affect the relative benefits of our energy storage products. Further, the local electric utility may impose “departing load,” “standby” or other charges on our customers in connection with their acquisition of our energy storage products, the amounts of which are outside of our control and which may have a material impact on the economic benefit of our energy storage products to our customers. Changes in the rates offered by local electric utilities and/or in the applicability or amounts of charges and other fees imposed by such utilities on customers acquiring our energy storage products could adversely affect the demand for our energy storage products.

Existing electric utility industry policies and regulations, and any subsequent changes, may present technical, regulatory, and economic barriers to the purchase and use of energy storage products that may significantly reduce demand for our products or harm our ability to compete.

Federal, state, local, and foreign government regulations and policies concerning the broader electric utility industry, as well as internal policies and regulations promulgated by electric utilities and organized electric markets with respect to fees, practices, and rate design, heavily influence the market for electricity generation products and services. These regulations and policies often affect electricity pricing and the interconnection of generation facilities, and can be subject to frequent modifications by governments, regulatory bodies, utilities, and market operators. For example, changes in fee structures, electricity pricing structures, and system permitting, interconnection, and operating requirements can deter purchases of renewable energy products by reducing anticipated revenues or increasing costs or regulatory burdens for would-be system purchasers. The resulting reductions in demand for energy products could harm our business, prospects, financial condition, and results of operations.

A significant recent development in renewable-energy pricing policies in the U.S. occurred on July 16, 2020, when the Federal Energy Regulatory Commission (“FERC”) issued a final rule amending regulations

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that implement the Public Utility Regulatory Policies Act (“PURPA”). Among other requirements, PURPA mandates that electric utilities buy the output of certain renewable generators below established capacity thresholds. PURPA also requires that such sales occur at a utility’s “avoided cost” rate. FERC’s PURPA reforms include modifications (1) to how regulators and electric utilities may establish avoided cost rates for new contracts; (2) that reduce from 20 MW to 5 MW the capacity threshold above which a renewable-energy qualifying facility is rebuttably presumed to have nondiscriminatory market access, thereby removing the requirement for utilities to purchase its output; (3) that require regulators to establish criteria for determining when an electric utility incurs a legally enforceable obligation to purchase from a PURPA facility; and (4) that reduce barriers for third parties to challenge PURPA eligibility. The net effect of these changes is uncertain, as FERC’s final rules do not become effective until 120 days after publication in the Federal Register, and some changes will not become fully effective until states and other jurisdictions implement the new authorities provided by FERC. In general, however, FERC’s PURPA reforms have the potential to reduce prices for the output from certain new renewable generation projects while also narrowing the scope of PURPA eligibility for new projects. These effects could reduce demand for PURPA-eligible battery energy storage products and could harm our business, prospects, financial condition, and results of operations.

Changes in other current laws or regulations applicable to us or the imposition of new laws, regulations, or policies in the U.S., Europe, or other jurisdictions in which we do business could have a material adverse effect on our business, financial condition, and results of operations. Any changes to government, utility, or electric market regulations or policies that favor electric utilities or other market participants could reduce the competitiveness of battery energy storage products and cause a significant reduction in demand for our products and services and adversely impact our growth. In addition, changes in our products or changes in export and import laws and implementing regulations may create delays in the introduction of new products in international markets, prevent our customers from deploying our products internationally or, in some cases, prevent the export or import of our products to certain countries altogether. Any such event could have a material adverse effect on our business, financial condition, and results of operations.

An increase in interest rates or a reduction in the availability of tax equity or project debt capital in the global financial markets could make it difficult for end customers to finance the cost of a renewable energy system and could reduce the demand for our products.

Many end users depend on financing to fund the initial capital expenditure required to purchase our products and services. As a result, an increase in interest rates or a reduction in the supply of project debt or tax equity financing could reduce the number of customer projects that receive financing or otherwise make it difficult for our customers or their customers to secure the financing necessary to construct a renewable energy system on favorable terms, or at all, and thus lower demand for our products, which could limit our growth or reduce our net sales. In addition, we believe that a significant percentage of end-users construct renewable energy systems as an investment, funding a significant portion of the initial capital expenditure with financing from third parties. An increase in interest rates could lower an investor’s return on investment, increase equity requirements, or make alternative investments more attractive relative to our products and services and, in each case, could cause these end users to seek alternative investments.

Changes in tax laws or regulations that are applied adversely to us or our customers could materially adversely affect our business, financial condition, results of operations, and prospects.

Changes in corporate tax rates, tax incentives for renewable energy projects, the realization of net deferred tax assets relating to our U.S. operations, the taxation of foreign earnings, and the deductibility of expenses under future tax reform legislation could have a material impact on the value of our deferred tax assets, could result in significant one-time charges in the current or future taxable years, and could increase our future U.S. tax expense, which could have a material adverse effect on our business, financial condition, results of operations, and prospects.

Governmental agencies in the jurisdictions in which we and our affiliates do business, as well as the Organization for Economic Cooperation and Development (the “OECD”), have recently focused on issues related to the taxation of multinational business, including issues relating to “base erosion and profit shifting,” where profits are reported as earned for tax purposes in relatively low-tax jurisdictions or payments are

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made between affiliates in jurisdictions with different tax rates. The OECD has released several components of its comprehensive plan to create an agreed set of international rules for addressing base erosion and profit shifting, and governmental authorities from various jurisdictions (including the United States) continue to discuss potential legislation and other reforms, including proposals for global minimum tax rates.

As we operate in numerous jurisdictions, the application of tax laws can be subject to diverging and sometimes conflicting interpretations by tax authorities of these jurisdictions. It is not uncommon for taxing authorities in different countries to have conflicting views, for instance with respect to whether a permanent establishment exists in a particular jurisdiction, the manner in which an arm’s length standard is applied for transfer pricing purposes, or with respect to the valuations of intellectual property. For example, if a taxing authority in one country where we operate were to reallocate income from another country where we operate, and if the taxing authority in the second country did not agree with the reallocation asserted by the first country, then we could be subject to tax on the same income in both countries, resulting in double taxation. If taxing authorities were to allocate income to a higher tax jurisdiction, subject our income to double taxation or assess interest and penalties, our tax liabilities could increase, which could adversely affect our business, financial condition, and results of operations.

Due to the potential for changes to tax laws and regulations or changes to the interpretation thereof (including regulations and interpretations pertaining to recent and proposed potential tax reforms in the United States), the ambiguity of tax laws and regulations, the subjectivity of factual interpretations, the complexity of our intercompany arrangements, uncertainties regarding the geographic mix of earnings in any particular period, and other factors, our estimates of effective tax rate and income tax assets and liabilities may be incorrect and our financial statements could be adversely affected, and the resulting impacts may vary substantially from period to period.

In particular, in the United States, there have been multiple significant changes recently proposed (including by the Biden administration and by members of Congress) to the taxation of business entities, including, among other things, an increase in the U.S. federal corporate income tax rate, a transition to graduated rates, an increase in the tax rate applicable to global intangible low-taxed income and elimination of certain exemptions, and various other changes to the U.S. international tax regime. These and other proposals are currently being discussed, but the likelihood of these changes being enacted or implemented is not yet clear. We are currently unable to predict whether such changes will occur and, if so, when they would be effective or the ultimate impact on us or our business. To the extent that such changes have a negative impact on us or our business, these changes may materially and adversely impact our business, financial condition, and results of operations.

In addition, the amounts of taxes we pay are subject to current or future audits by taxing authorities in the United States and all other jurisdictions in which we operate. If audits result in additional payments or assessments different from our reserves, our future results may include unfavorable adjustments to our tax liabilities, and our financial statements could be adversely affected.

We may incur obligations, liabilities, or costs under environmental, health, and safety laws, which could have an adverse impact on our business, financial condition, and results of operations.

We are required to comply with national, state, local, and foreign laws and regulations regarding the protection of the environment, health, and safety. We may incur expenses, or be subject to liability, related to the transportation, storage, or disposal of lithium-ion batteries. Adoption of more stringent laws and regulations in the future could require us to incur substantial costs to come into compliance with these laws and regulations. In addition, violations of, or liabilities under, these laws and regulations may result in restrictions being imposed on our operating activities or in our being subject to adverse publicity, substantial fines, penalties, criminal proceedings, third-party property damage or personal injury claims, cleanup costs, or other costs. Liability under these laws and regulations can be imposed on a joint and several basis and without regard to fault or the legality of the activities giving rise to the claim. In addition, future developments such as more aggressive enforcement policies or the discovery of presently unknown environmental conditions may require expenditures that could have an adverse effect on our business, financial condition, and results of operations.

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The reduction, elimination, or expiration of government incentives for, or regulations mandating the use of, renewable energy could reduce demand for energy storage products and harm our business.

Federal, state, local, and foreign government bodies provide incentives to owners, end users, distributors, system integrators and manufacturers of renewable energy products to promote renewable electricity in the form of rebates, tax credits and other financial incentives.

The range and duration of these incentives varies widely by jurisdiction. Our customers typically use our products for grid-connected applications wherein power is sold under a power purchase agreement or into an organized electric market. The reduction, elimination, or expiration of government incentives for grid-connected electricity may negatively affect the competitiveness of our offerings relative to conventional renewable sources of electricity and could harm or halt the growth of our industry and our business. These subsidies and incentives may expire on a particular date, end when the allocated funding is exhausted or be reduced or terminated as renewable energy adoption rates increase or as a result of legal challenges, the adoption of new statutes or regulations, or the passage of time. These reductions or terminations may occur without warning.

Revenue from any projects we support may be adversely affected if there is a decline in public acceptance or support of renewable energy, or regulatory agencies, local communities, or other third parties delay, prevent, or increase the cost of constructing and operating customer projects.

Certain persons, associations and groups could oppose renewable energy projects in general or our customers’ projects specifically, citing, for example, misuse of water resources, landscape degradation, land use, food scarcity or price increase, and harm to the environment. Moreover, regulation may restrict the development of renewable energy plants in certain areas. In order to develop a renewable energy project, our customers are typically required to obtain, among other things, environmental impact permits or other authorizations and building permits, which in turn require environmental impact studies to be undertaken and public hearings and comment periods to be held during which any person, association, or group may oppose a project. Any such opposition may be taken into account by government officials responsible for granting the relevant permits, which could result in the permits being delayed or not being granted or being granted solely on the condition that our customers carry out certain corrective measures to the proposed project.

Severe weather events, including the effects of climate change, are inherently unpredictable and may have a material adverse effect on our financial results and financial condition.

Our business, including our customers and suppliers, may be exposed to severe weather events and natural disasters, such as tornadoes, tsunamis, tropical storms (including hurricanes), earthquakes, windstorms, hailstorms, severe thunderstorms, wildfires, and other fires, which could cause operating results to vary significantly from one period to the next. We may incur losses in our business in excess of: (1) those experienced in prior years, (2) the average expected level used in pricing, or (3) current insurance coverage limits. The incidence and severity of severe weather conditions and other natural disasters are inherently unpredictable. Climate change may affect the occurrence of certain natural events, such as an increase in the frequency or severity of wind and thunderstorm events, and tornado or hailstorm events due to increased convection in the atmosphere; more frequent wildfires and subsequent landslides in certain geographies; higher incidence of deluge flooding; and the potential for an increase in severity of the hurricane events due to higher sea surface temperatures. Additionally, climate change may adversely impact the demand, price, and availability of insurance. Due to significant variability associated with future changing climate conditions, we are unable to predict the impact climate change will have on our business.

Risks Related to Our Financial Condition and Liquidity

Our order intake and cash flows have been highly seasonal, which could make our future performance difficult to predict and could cause our results of operations for a particular period to fluctuate from quarter to quarter or fall below expectations, resulting in a decline in the price of our Class A common stock.

Our quarterly results of operations are difficult to predict and may fluctuate significantly in the future. We experience seasonality and typically see increased order intake in our third and fourth fiscal quarters,

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driven by demand in the Northern Hemisphere to install energy storage products before the summer of the following year. Our services and digital application offerings do not experience the same seasonality given their recurring nature. Combined third and fourth fiscal quarter order intake for energy storage products in fiscal year 2020 and fiscal year 2019 accounted for 80% or more of our total intake each year. As a result, revenue recognition is significantly stronger in our third and fourth fiscal quarters. Cash flows historically have been negative in our first and second fiscal quarters, neutral to positive in our third fiscal quarter, and positive in our fourth fiscal quarter. See “Recent Developments — Preliminary Fourth Quarter Results.”

We have a history of net losses, we anticipate increasing expenses in the future, and we may not be able to achieve or maintain profitability.

We have incurred net losses on an annual basis since our inception. We incurred net losses of $46.7 million and $47.0 million for the years ended September 30, 2020 and 2019, respectively, and net losses of $74.6 million and $42.7 million for the nine months ended June 30, 2021 and 2020, respectively. We expect our aggregate costs will increase substantially in the foreseeable future and our losses will continue as we expect to invest heavily in increasing our customer base, expanding our operations, hiring additional employees, and operating as a public company. These efforts may prove more expensive than we currently anticipate, and we may not succeed in increasing our revenue sufficiently to offset these higher expenses. To date, we have financed our operations with equity contributions from AES Grid Stability, Siemens Industry, and QFH, cash and cash equivalents, negative working capital, and short-term borrowings. Our net cash flow from operations was negative for the year ended September 30, 2020 and the nine months ended June 30, 2021. We may not generate positive cash flow from operations or profitability in any given period, and our limited operating history may make it difficult for you to evaluate our current business and our future prospects.

We have encountered and will continue to encounter risks and difficulties frequently experienced by growing companies in rapidly changing industries, including increasing expenses as we continue to grow our business. We expect our operating expenses to increase significantly over the next several years as we continue to hire additional personnel, expand our operations and infrastructure, and continue to expand to reach more customers. In addition to the expected costs to grow our business, we also expect to incur additional legal, accounting, and other expenses as a newly public company. These investments may be more costly than we expect, and if we do not achieve the benefits anticipated from these investments, or if the realization of these benefits is delayed, they may not result in increased revenue or growth in our business. If our growth rate were to decline significantly or become negative, it could adversely affect our financial condition and results of operations. If we are not able to achieve or maintain positive cash flow in the long term, we may require additional financing, which may not be available on favorable terms or at all and/or which would be dilutive to our stockholders. If we are unable to successfully address these risks and challenges as we encounter them, our business, results of operations and financial condition would be adversely affected. Our failure to achieve or maintain profitability could negatively impact the value of our common stock.

The Revolver we will enter into in connection with this offering imposes certain restrictions that may affect our ability to operate our business and make payments on our indebtedness.

In connection with this offering, we plan to enter into the Revolver, which will contain covenants that, among other things, will restrict our ability to incur additional indebtedness; incur liens; sell, transfer, or dispose of property and assets; invest; make dividends or distributions or other restricted payments and engage in affiliate transactions. In addition, we will be required to maintain (i) minimum liquidity and gross revenue requirements, in each case, until consolidated EBITDA reaches a certain specified threshold and we make an election, and (ii) thereafter, a maximum total leverage ratio and a minimum interest coverage ratio. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Liquidity and Capital Resources—Revolving Credit Facility.” The Revolver will limit our ability to make certain payments, including dividends or distributions on Fluence Energy, LLC’s equity and other restricted payments, provided, however, that payments in respect of certain tax distributions under the Fluence Energy LLC Agreement and certain payments under the TRA will be permitted. These restrictions may restrict our current and future operations, particularly our ability to respond to certain changes in our business or

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industry, or take future actions. In connection with the Revolver, we will grant the lenders party thereto a security interest in substantially all of our assets.

Our ability to meet these restrictive covenants can be impacted by events beyond our control and we may be unable to do so. Our Revolver and related security agreements will provide that our breach or failure to satisfy certain covenants constitutes an event of default. Upon the occurrence of an event of default, our lenders could elect to declare all amounts outstanding under its debt agreements to be immediately due and payable. In addition, our lenders would have the right to proceed against the assets we provided as collateral pursuant to the Revolver and related security agreement. If the debt under our Revolver was to be accelerated, we may not have sufficient cash on hand or be able to sell sufficient collateral to repay it, which would have an immediate adverse effect on our business and operating results. This could potentially cause us to cease operations and result in a complete loss of your investment in our Class A common stock.

Moreover, the new Revolver will require us to dedicate a portion of our cash flow from operations to interest payments, thereby reducing the availability of cash flow to fund working capital, capital expenditures and other general corporate purposes; increasing our vulnerability to adverse general economic, industry, or competitive developments or conditions; and limiting our flexibility in planning for, or reacting to, changes in our business and the industry in which we operate or in pursuing our strategic objectives.

Our future capital needs are uncertain and we may need to raise additional funds in the future, and such funds may not be available on acceptable terms or at all.

We believe that our current cash and cash equivalents, including the net proceeds from this offering together with our expected cash from operations, will be sufficient to meet our projected operating requirements for the foreseeable future. However, continued expansion of our business will be expensive, and we may seek additional funds from public and private stock offerings, borrowings under our existing or new credit facilities or other sources which we may not be able to maintain or obtain on acceptable or commercially reasonable terms, if at all. Our capital requirements will depend on many factors, including:

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market acceptance of our offerings;

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the revenue generated by sales of our offerings;

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the costs associated with expanding our sales and marketing efforts;

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the expenses we incur in manufacturing and selling our products;

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the costs of developing and commercializing new products or technologies;

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the cost of filing and prosecuting patent applications and defending and enforcing our patent and other intellectual property rights;

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the cost of defending, in litigation or otherwise, any claims that we infringe third-party patent or other intellectual property rights;

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the cost of enforcing or defending against non-competition claims;

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the number and timing of acquisitions and other strategic transactions;

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the costs associated with our planned international expansion; and

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unanticipated general and administrative expenses.

As a result of these factors, we may seek to raise additional capital to, among others:

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maintain appropriate product inventory levels;

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continue our research and development and protect our intellectual property rights;

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defend claims, in litigation or otherwise;

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expand our geographic reach;

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commercialize our new products; and

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acquire companies and license products or intellectual property.

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Such capital may not be available on favorable terms, or at all. Furthermore, if we issue equity or debt securities to raise additional capital, our existing stockholders may experience dilution, and the new equity or debt securities may have rights, preferences, and privileges senior to those of our existing stockholders. In addition, if we raise additional capital through collaboration, licensing, or other similar arrangements, it may be necessary to relinquish valuable rights to our products, potential products, or proprietary technologies, or grant licenses on terms that are not favorable to us. Historically, we have relied on parent corporate guarantees from our affiliates to support project sales. If we are unable to rely on our standalone credit quality or utilize such parent corporate guarantees going forward, it may impact our ability to sell products or establish supplier relationships going forward. If we cannot raise capital on acceptable terms, we may not be able to develop or enhance our products, execute our business plan, take advantage of future opportunities, or respond to competitive pressures, changes in our supplier relationships, or unanticipated customer requirements. Any of these events could adversely affect our ability to achieve our development and commercialization goals, which could have a material adverse effect on our business, results of operations, and financial condition.

Risks Related to Our Intellectual Property and Technology

If we are unable to obtain, maintain and enforce intellectual property protection for our technology or if the scope of our intellectual property protection is not sufficiently broad, others may be able to develop and commercialize technology substantially similar to ours, and our ability to successfully commercialize our technology may be adversely affected.

Our business depends on internally developed technology, including hardware, software, databases, confidential information and know-how, the protection of which is crucial to the success of our business. We rely on a combination of trademark, trade-secret, and copyright laws and confidentiality procedures and contractual provisions to protect our intellectual property rights in our internally developed technology. We may, over time, increase our investment in protecting our intellectual property through additional trademark, patent, and other intellectual property filings that could be expensive and time-consuming. Effective trademark, trade-secret, and copyright protection is expensive to develop and maintain, both in terms of initial and ongoing registration requirements and the costs of defending our rights. These measures, however, may not be sufficient to offer us meaningful protection. If we are unable to protect our intellectual property and other rights, our competitive position and our business could be harmed, as third parties may be able to commercialize and use technologies and software products that are substantially the same as ours without incurring the development and licensing costs that we have incurred. Any of our owned or licensed intellectual property rights could be challenged, invalidated, circumvented, infringed, or misappropriated, our trade secrets and other confidential information could be disclosed in an unauthorized manner to third parties, or our intellectual property rights may not be sufficient to permit us to take advantage of current market trends or otherwise to provide us with competitive advantages, which could result in costly redesign efforts, discontinuance of certain offerings, or other competitive harm.

Monitoring unauthorized use of our intellectual property is difficult and costly. From time to time, we seek to analyze our competitors’ services, and may in the future seek to enforce our rights against potential infringement. However, the steps we have taken to protect our intellectual property rights may not be adequate to prevent infringement or misappropriation of our intellectual property. We may not be able to detect unauthorized use of, or take appropriate steps to enforce, our intellectual property rights. Any inability to meaningfully protect our intellectual property rights could result in harm to our ability to compete and reduce demand for our technology. Moreover, our failure to develop and properly manage new intellectual property could adversely affect our market positions and business opportunities. Also, some of our services rely on technologies and software developed by or licensed from third parties, and we may not be able to maintain our relationships with such third parties or enter into similar relationships in the future on reasonable terms or at all.

Uncertainty may result from changes to intellectual property legislation and from interpretations of intellectual property laws by applicable courts and agencies. Accordingly, despite our efforts, we may be unable to obtain and maintain the intellectual property rights necessary to provide us with a competitive advantage. Our failure to obtain, maintain and enforce our intellectual property rights could therefore have a material adverse effect on our business, financial condition, and results of operations.

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We may be sued by third parties for infringement, misappropriation, dilution, or other violation of their intellectual property or proprietary rights.

Internet, advertising, and e-commerce companies frequently are subject to litigation based on allegations of infringement, misappropriation, dilution, or other violations of intellectual property rights. Some internet, advertising, and e-commerce companies, including some of our competitors, as well as non-practicing entities, own large numbers of patents, copyrights, trademarks, and trade secrets, which they may use to assert claims against us.

Third parties may in the future assert, that we have infringed, misappropriated, diluted, or otherwise violated their intellectual property rights. For instance, the use of our technology to provide our offerings could be challenged by claims that such use infringes, dilutes, misappropriates, or otherwise violates the intellectual property rights of a third party. In addition, we may in the future be exposed to claims that content published or made available through our apps or websites violates third-party intellectual property rights.

As we face increasing competition and as a public company, the possibility of intellectual property rights claims against us grows. Such claims and litigation may involve patent holding companies or other adverse intellectual property rights holders who have no relevant product revenue, and therefore our own pending patents and other intellectual property rights may provide little or no deterrence to these rights holders in bringing intellectual property rights claims against us. There may be intellectual property rights held by others, including issued or pending patents and trademarks, that cover significant aspects of our technologies, content, branding, or business methods, and we cannot assure that we are not infringing or violating, and have not violated or infringed, any third-party intellectual property rights or that we will not be held to have done so or be accused of doing so in the future. We expect that we may receive in the future notices that claim we or our partners, or clients using our solutions and services, have misappropriated, or misused other parties’ intellectual property rights, particularly as the number of competitors in our market grows and the functionality of applications amongst competitors overlaps.

Any claim that we have violated intellectual property or other proprietary rights of third parties, with or without merit, and whether or not it results in litigation, is settled out of court or is determined in our favor, could be time-consuming and costly to address and resolve, and could divert the time and attention of management and technical personnel from our business. Furthermore, an adverse outcome of a dispute may result in an injunction and could require us to pay substantial monetary damages, including treble damages and attorneys’ fees, if we are found to have willfully infringed a party’s intellectual property rights. Any settlement or adverse judgment resulting from such a claim could require us to enter into a licensing agreement to continue using the technology, content, or other intellectual property that is the subject of the claim; restrict or prohibit our use of such technology, content, or other intellectual property; require us to expend significant resources to redesign our technology or solutions; and require us to indemnify third parties. Royalty or licensing agreements, if required or desirable, may be unavailable on terms acceptable to us, or at all, and may require significant royalty payments and other expenditures. We may also be required to develop alternative non-infringing technology, which could require significant time and expense. There also can be no assurance that we would be able to develop or license suitable alternative technology, content, or other intellectual property to permit us to continue offering the affected technology, content, or services to our partners or clients. If we cannot develop or license technology for any allegedly infringing aspect of our business, we would be forced to limit our product or service offerings and may be unable to compete effectively. Any of these events could materially harm our business, financial condition, and results of operations.

If our trademarks and trade names are not adequately protected or protectable, we may not be able to build name recognition in our markets of interest, and our competitive position may be harmed.

The registered or unregistered trademarks or trade names that we own may be challenged, infringed, circumvented, declared generic, lapsed, or determined to be infringing on or dilutive of other marks. We may not be able to protect our rights in these trademarks and trade names, which we need in order to build name recognition with potential members, partners, and clients. In addition, third parties may file for registration of trademarks similar or identical to our trademarks, thereby impeding our ability to build brand identity and possibly leading to market confusion. If they succeed in registering or developing common-law rights in such trademarks, and if we are not successful in challenging such third-party rights, we may

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not be able to use these trademarks to develop brand recognition of our technologies, products, or services. In addition, there could be potential trade name or trademark infringement claims brought by owners of other registered or unregistered trademarks or trademarks that incorporate variations of our registered or unregistered trademarks or trade names. If we are unable to establish name recognition based on our trademarks and trade names, we may not be able to compete effectively, which could have a material adverse effect on our business, financial condition, results of operations and prospects.

We may not be able to enforce our intellectual property rights throughout the world.

We may also be required to protect our proprietary technology and content in an increasing number of jurisdictions, a process that is expensive and may not be successful, or which we may not pursue in every location. Filing, prosecuting, maintaining, defending, and enforcing intellectual property rights on our products, services, and technologies in all countries throughout the world could be prohibitively expensive, and our intellectual property rights in some countries outside the United States can be less extensive than those in the United States. We do not own and have not registered or applied for intellectual property registrations in all countries outside the United States. Competitors may use our technologies in jurisdictions where we have not obtained protection to develop their own products and services and, further, may export otherwise violating products and services to territories where we have protection but enforcement is not as strong as that in the United States. These products and services may compete with our solutions and services, and our intellectual property rights may not be effective or sufficient to prevent them from competing. In addition, the laws of some foreign countries do not protect certain proprietary rights to the same extent as the laws of the United States, and many companies have encountered significant challenges in establishing and enforcing certain of their proprietary rights outside of the United States. These challenges can be caused by the absence or inconsistency of the application of rules and methods for the establishment and enforcement of intellectual property rights outside of the United States. For instance, there is no uniform worldwide policy regarding patentable subject matter or the scope of claims allowable for business methods. As such, we do not know the degree of future protection that we will have on our technologies, products, and services.

In addition, the legal systems of some countries, particularly developing countries, do not favor the enforcement of certain intellectual property protection. This could make it difficult for us to stop the misappropriation or other violation of certain of our other intellectual property rights. Accordingly, we may choose not to seek protection in certain countries, and we will not have the benefit of protection in such countries. Proceedings to enforce our intellectual property rights in foreign jurisdictions could result in substantial costs and divert our efforts and attention from other aspects of our business. Accordingly, our efforts to protect our intellectual property rights in such countries may be inadequate. In addition, changes in the law and legal decisions by courts in the United States and foreign countries may affect our ability to obtain adequate protection for our products, services, and other technologies and the enforcement of intellectual property. Any of the foregoing could harm our competitive position, business, financial condition, results of operations, and prospects.

We may be subject to claims that our employees, consultants, or advisors have wrongfully used or disclosed alleged trade secrets of their current or former employers or claims asserting ownership of what we regard as our own intellectual property.

Many of our employees, consultants, and advisors are currently or were previously employed at other companies in our field, including our competitors or potential competitors. Although we try to ensure that our employees, consultants, and advisors do not use the proprietary information or know-how of others in their work for us, we may be subject to claims that we or these individuals have used or disclosed intellectual property, including trade secrets or other proprietary information, of any such individual’s current or former employer. Litigation may be necessary to defend against these claims. If we fail in defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights or personnel. Even if we are successful in defending against such claims, litigation could result in substantial costs and be a distraction to management.

In addition, while it is our policy to require our employees and contractors who may be involved in the conception or development of intellectual property to execute agreements assigning such intellectual property

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to us, we may be unsuccessful in executing such an agreement with each party who, in fact, conceives or develops intellectual property that we regard as our own. The assignment of intellectual property rights may not be self-executing, or the assignment agreements may be breached, and we may be forced to bring claims against third parties, or defend claims that they may bring against us, to determine the ownership of what we regard as our intellectual property. Any of the foregoing could harm our competitive position, business, financial condition, results of operations, and prospects.

Our business depends on our ability to effectively invest in, implement improvements to and properly maintain the uninterrupted operation and data integrity of our information technology and other business systems.

Our business is highly dependent on maintaining effective information systems as well as the integrity and of the data we use to serve our customers and operate our business. Because of the large amount of data that we collect and manage, it is possible that hardware failures or errors in our systems could result in data loss or corruption or cause the information that we collect to be incomplete or contain inaccuracies that our partners regard as significant. If our data were found to be inaccurate or unreliable due to fraud or other error, or if we, or any of the third-party service providers we engage, were to fail to maintain information systems and data integrity effectively, we could experience operational disruptions that may impact our operations and hinder our ability to provide services, establish appropriate pricing for services, establish reserves, report financial results timely and accurately and maintain regulatory compliance, among other things. If any such failure of our data integrity were to result in the theft, corruption or other harm to the data of our customers, our ability to retain and attract partners or customers may be harmed.

We must continue to invest in long-term solutions that will enable us to anticipate customer needs and expectations, enhance the customer experience, act as a differentiator in the market, and protect against cybersecurity risks and threats. Despite our implementation of reasonable security measures, our IT systems, like those of other companies, are vulnerable to damages from computer viruses, natural disasters, fire, power loss, telecommunications failures, personnel misconduct, human error, unauthorized access, physical or electronic security breaches, cyber-attacks (including malicious and destructive code, phishing attacks, ransomware, and denial of service attacks), and other similar disruptions. Such attacks or security breaches may be perpetrated by bad actors internally or externally (including computer hackers, persons involved with organized crime, or foreign state or foreign state-supported actors). Cybersecurity threat actors employ a wide variety of methods and techniques that are constantly evolving, increasingly sophisticated, and difficult to detect and successfully defend against. We have experienced such incidents in the past, and any future incidents could expose us to claims, litigation, regulatory or other governmental investigations, administrative fines, and potential liability. Any system failure, accident, or security breach could result in disruptions to our operations. A material network breach in the security of our IT systems could include the theft of our trade secrets, customer information, human resources information, or other confidential data, including but not limited to personally identifiable information.

Although past incidents have not had a material effect on our business operations or financial performance, to the extent that any disruption or security breach results in a loss or damage to our data, or an inappropriate disclosure of confidential, proprietary or customer information, it could cause significant damage to our reputation, affect our relationships with our customers and strategic partners, lead to claims against us from governments and private plaintiffs, and adversely affect our business. We cannot guarantee that future cyberattacks, if successful, will not have a material effect on our business or financial results.

Many governments have enacted laws requiring companies to provide notice of cyber incidents involving certain types of data, including personal data. These laws may be subject to alterations and revisions, and if we fail to comply with our obligations under such laws in the jurisdictions in which we operate, we could be subject to regulatory action and lawsuits. If an actual or perceived cybersecurity breach of security measures, unauthorized access to our system or the systems of the third-party vendors that we rely upon, or any other cybersecurity threat occurs, we may incur liability, costs, or damages, contract termination, our reputation may be compromised, our ability to attract new customers could be negatively affected, and our business, financial condition, and results of operations could be materially and adversely affected. Any compromise of our security could also result in a violation of applicable domestic and foreign security, privacy or data protection, consumer protection, and other laws, regulatory or other governmental investigations, enforcement actions, and legal and financial exposure, including potential

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contractual liability. In addition, we may be required to incur significant costs to protect against and remediate damage caused by these disruptions or security breaches in the future.

We utilize open-source software, which may pose particular risks to our proprietary software and solutions.

We use open-source software in our solutions and will use open-source software in the future. Companies that incorporate open-source software into their solutions have, from time to time, faced claims challenging the use of open-source software and compliance with open-source license terms. Some licenses governing the use of open-source software contain requirements that we make available source code for modifications or derivative works we create based upon the open-source software, and that we license such modifications or derivative works under the terms of a particular open-source license or other license granting third parties certain rights of further use. By the terms of certain open-source licenses, we could be required to release the source code of our proprietary software, and to make our proprietary software available under open-source licenses to third parties at no cost, if we combine our proprietary software with open-source software in certain manners. Although we monitor our use of open-source software, we cannot assure you that all open-source software is reviewed prior to use in our solutions, that our developers have not incorporated open-source software into our solutions, or that they will not do so in the future. Additionally, the terms of many open-source licenses to which we are subject have not been interpreted by U.S. or foreign courts. There is a risk that open-source software licenses could be construed in a manner that imposes unanticipated conditions or restrictions on our ability to market or provide our solutions as currently marketed or provided. Companies that incorporate open-source software into their products have, in the past, faced claims seeking enforcement of open-source license provisions and claims asserting ownership of open-source software incorporated into their product. If an author or other third party that distributes such open-source software were to allege that we had not complied with the conditions of an open-source license, we could incur significant legal costs defending ourselves against such allegations. In the event such claims were successful, we could be subject to significant damages or be enjoined from the distribution of our software. In addition, the terms of open-source software licenses may require us to provide source code that we develop using such open-source software to others on unfavorable license terms. As a result of our current or future use of open-source software, we may face claims or litigation, be required to release our proprietary source code, pay damages for breach of contract, re-engineer our solutions, discontinue making our solutions available in the event re-engineering cannot be accomplished on a timely basis, or take other remedial action. Any such re-engineering or other remedial efforts could require significant additional research and development resources, and we may not be able to successfully complete any such re-engineering or other remedial efforts. Further, in addition to risks related to license requirements, use of certain open-source software can lead to greater risks than use of third-party commercial software, as open-source licensors generally do not provide warranties or controls on the origin of software. Any of these risks could be difficult to eliminate or manage, and, if not addressed, could have a negative effect on our business, financial condition, and results of operations.

If we fail to comply with our obligations under license or technology agreements with third parties, we may be required to pay damages, and we could lose license rights that are critical to our business. If we fail to comply with our obligations under license and technology agreements with AES and Siemens, we could lose license rights, including to patents and patent applications, which may prove to be material to our business.

We license certain intellectual property, including patents, technologies and software from third parties, including AES and Siemens, that is important to our business, and in the future, we may enter into additional agreements that provide us with licenses to valuable intellectual property or technology. If we fail to comply with any of the obligations under our license agreements, we may be required to pay damages and the licensor may have the right to terminate the license. Termination by the licensor would cause us to lose valuable rights, and could prevent us from selling our products and services, or adversely impact our ability to commercialize future solutions and services. Our business would suffer if any current or future licenses terminate, if the licensors fail to abide by the terms of the license, if the licensors fail to enforce licensed patents against infringing third parties, if the licensed intellectual property is found to be invalid or unenforceable, if the licensed intellectual property expires or if we are unable to enter into necessary licenses on acceptable terms. In addition, our rights to certain intellectual property, technologies, and software, are licensed to us on a non-exclusive basis. The owners of these non-exclusively licensed technologies are therefore free to license them to third parties, including our competitors, on terms that may be superior

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to those offered to us, which could place us at a competitive disadvantage. Moreover, our licensors may own or control intellectual property that has not been licensed to us and, as a result, we may be subject to claims, regardless of their merit, that we are infringing or otherwise violating the licensor’s rights. In addition, the agreements under which we license intellectual property or technology from third parties are generally complex, and certain provisions in such agreements may be susceptible to multiple interpretations. The resolution of any contract interpretation disagreement that may arise could narrow what we believe to be the scope of our rights to the relevant intellectual property or technology, or increase what we believe to be our financial or other obligations under the relevant agreement. Any of the foregoing could harm our competitive position, business, financial condition, results of operations, and prospects.

If we cannot license rights to use technologies on reasonable terms, we may not be able to commercialize new solutions or services in the future.

In the future, we may identify additional third-party intellectual property we may need to license in order to engage in our business, including to develop or commercialize new products or services. However, such licenses may not be available on acceptable terms or at all. The licensing or acquisition of third-party intellectual property rights is a competitive area, and several more established companies may pursue strategies to license or acquire third-party intellectual property rights that we may consider attractive or necessary. These established companies may have a competitive advantage over us due to their size, capital resources, and greater development or commercialization capabilities. In addition, companies that perceive us to be a competitor may be unwilling to assign or license rights to us. Even if such licenses are available, we may be required to pay the licensor substantial royalties based on sales of our products and services. Such royalties are a component of the cost of our products or services and may affect the margins on our products and services. In addition, such licenses may be non-exclusive, which could give our competitors access to the same intellectual property licensed to us. If we are unable to enter into the necessary licenses on acceptable terms or at all, if any necessary licenses are subsequently terminated, if our licensors fail to abide by the terms of the licenses, if our licensors fail to prevent infringement by third parties, or if the licensed intellectual property rights are found to be invalid or unenforceable, or if the licensed intellectual property rights expire, our business, financial condition, results of operations, and prospects could be affected. If licenses to third-party intellectual property rights are or become required for us to engage in our business, the rights may be non-exclusive, which could give our competitors access to the same technology or intellectual property rights licensed to us. Moreover, we could encounter delays and other obstacles in our attempt to develop alternatives. Defense of any lawsuit or failure to obtain any of these licenses on favorable terms could prevent us from commercializing solutions and services, which could harm our competitive position, business, financial condition, results of operations, and prospects.

Risks related to the Offering and Ownership of our Class A Common Stock

Certain provisions of Delaware law and antitakeover provisions in our organizational documents could delay or prevent a change of control.

Certain provisions of Delaware law, our amended and restated certificate of incorporation, amended and restated bylaws, and our Stockholders Agreement may have an antitakeover effect and may delay, defer, or prevent a merger, acquisition, tender offer, takeover attempt, or other change of control transaction that a stockholder might consider in its best interest, including those attempts that might result in a premium over the market price for the shares held by our stockholders. These provisions provide for, among other things:

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the ability of our board of directors to issue one or more series of preferred stock;

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advance notice for nominations of directors by stockholders and for stockholders to include matters to be considered at our annual meetings;

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certain limitations on convening special stockholder meetings;

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prohibit cumulative voting in the election of directors;

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that certain provisions of amended and restated certificate of incorporation may be amended only by the affirmative vote of at least 66 2/3% of the voting power represented by our then-outstanding common stock;

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the right of each of AES Grid Stability, Siemens Industry, and the Blocker Shareholder to nominate certain of our directors;

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the shares of our Class B-1 common stock that will be held by our Founders entitle them to five votes per share on all matters presented to our stockholders generally; and

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the consent rights of the Continuing Equity Owners in the Stockholders Agreement as described in “Certain Relationships and Related Party Transactions — Stockholders Agreement.”

These antitakeover provisions could make it more difficult for a third party to acquire us, even if the third party’s offer may be considered beneficial by many of our stockholders. As a result, our stockholders may be limited in their ability to obtain a premium for their shares.

In addition, we have opted out of Section 203 of the General Corporation Law of the State of Delaware, which we refer to as the DGCL, but our amended and restated certificate of incorporation will provide that engaging in any of a broad range of business combinations with any “interested” stockholder (any stockholder with 15% or more of our voting stock) for a period of three years following the date on which the stockholder became an “interested” stockholder is prohibited, subject to certain exceptions. See “Description of Capital Stock.”

The JOBS Act will allow us to postpone the date by which we must comply with certain laws and regulations intended to protect investors and to reduce the amount of information we provide in our reports filed with the SEC. We cannot be certain if this reduced disclosure will make our Class A common stock less attractive to investors.

The JOBS Act is intended to reduce the regulatory burden on “emerging growth companies.” As defined in the JOBS Act, a public company whose initial public offering of common equity securities occurs after December 8, 2011, and whose annual net revenues are less than $1.07 billion will, in general, qualify as an “emerging growth company” until the earliest of:

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the last day of its fiscal year following the fifth anniversary of the date of its initial public offering of common equity securities;

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the last day of its fiscal year in which it has annual gross revenue of $1.07 billion or more;

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the date on which it has, during the previous three-year period, issued more than $1.07 billion in nonconvertible debt; and

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the date on which it is deemed to be a “large accelerated filer, “ which will occur at such time as the company (1) has an aggregate worldwide market value of common equity securities held by non-affiliates of $700 million or more as of the last business day of its most recently completed second fiscal quarter, (2) has been required to file annual and quarterly reports under the Securities Exchange Act of 1934, as amended, or the Exchange Act, for a period of at least 12 months, and (3) has filed at least one annual report pursuant to the Exchange Act.

Under this definition, we will be an “emerging growth company” upon completion of this offering and could remain an “emerging growth company” until as late as the fifth anniversary of the completion of this offering. For so long as we are an “emerging growth company,” we will, among other things:

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not be required to comply with the auditor attestation requirements of Section 404(b) of the Sarbanes-Oxley Act;

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not be required to hold a nonbinding advisory stockholder vote on executive compensation pursuant to Section 14A(a) of the Exchange Act;

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not be required to seek stockholder approval of any golden parachute payments not previously approved pursuant to Section 14A(b) of the Exchange Act;

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be exempt from the requirement of the Public Company Accounting Oversight Board, or PCAOB, regarding the communication of critical audit matters in the auditor’s report on the financial statements; and

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be subject to reduced disclosure obligations regarding executive compensation in our periodic reports and proxy statements.

In addition, Section 107 of the JOBS Act provides that an emerging growth company can use the extended transition period provided in Section 7(a)(2)(B) of the Securities Act for complying with new or revised accounting standards. This permits an emerging growth company to delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have elected to use this extended transition period and, as a result, our consolidated financial statements may not be comparable to the financial statements of issuers who are required to comply with the effective dates for new or revised accounting standards that are applicable to public companies.

We cannot predict if investors will find our Class A common stock less attractive as a result of our decision to take advantage of some or all of the reduced disclosure requirements above. If some investors find our Class A common stock less attractive as a result, there may be a less active trading market for our Class A common stock and our stock price may be more volatile.

Because we have no current plans to pay regular cash dividends on our Class A common stock following this offering, you may not receive any return on investment unless you sell your Class A common stock for a price greater than that which you paid for it.

We do not anticipate paying any regular cash dividends on our Class A common stock following this offering. Any decision to declare and pay dividends in the future will be made at the discretion of our board of directors and will depend on, among other things, general and economic conditions, our results of operations and financial condition, our available cash and current and anticipated cash needs, capital requirements, contractual, legal, tax and regulatory restrictions, and such other factors that our board of directors may deem relevant. In addition, our ability to pay dividends is, and may be, limited by covenants of any future outstanding indebtedness we or our subsidiaries incur. Therefore, any return on investment in our Class A common stock is solely dependent upon the appreciation of the price of our Class A common stock on the open market, which may not occur. See “Dividend Policy” for more detail.

We cannot predict the effect our multiple class structure may have on the market price of our Class A common stock.

We cannot predict whether our multiple class structure will result in a lower or more volatile market price of our Class A common stock, in adverse publicity, or other adverse consequences. For example, certain index providers have announced restrictions on including companies with multiple-class share structures in certain of their indices. In July 2017, FTSE Russell announced that it plans to require new constituents of its indices to have greater than 5% of the company’s voting rights in the hands of public stockholders, and S&P Dow Jones announced that it will no longer admit companies with multiple-class share structures to certain of its indices. Affected indices include the Russell 2000 and the S&P 500, S&P MidCap 400, and S&P SmallCap 600, which together make up the S&P Composite 1500. Also in 2017, MSCI, a leading stock index provider, opened public consultations on their treatment of no-vote and multi-class structures and temporarily barred new multi-class listings from certain of its indices and in October 2018, MSCI announced its decision to include equity securities “with unequal voting structures” in its indices and to launch a new index that specifically includes voting rights in its eligibility criteria. Under such announced policies, the multiple class structure of our stock would make us ineligible for inclusion in certain indices and, as a result, mutual funds, exchange-traded funds, and other investment vehicles that attempt to track those indices would not invest in our Class A common stock. These policies are relatively new, and it is unclear what effect, if any, they will have on the valuations of publicly traded companies excluded from such indices, but it is possible they may depress valuations, compared to similar companies that are included. Given the sustained flow of investment funds into passive strategies that seek to track certain indices, exclusion from certain stock indices would likely preclude investment by many of these funds and could make our Class A common stock less attractive to other investors. As a result, the market price of our Class A common stock could be adversely affected.

We are a “controlled company” within the meaning of the Nasdaq rules and, as a result, will qualify for, and intend to rely on, exemptions from certain corporate governance requirements. You may not have the same protections afforded to stockholders of companies that are subject to such corporate governance requirements.

After the consummation of the Transactions, our Continuing Equity Owners will have more than 50% of the voting power for the election of directors, and, as a result, we will be considered a “controlled

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company” for the purposes of the Nasdaq rules. As such, we will qualify for, and intend to rely on, exemptions from certain corporate governance requirements, including the requirements to have a majority of independent directors on our board of directors, an entirely independent compensation committee or to have director nominations be made, or recommended to the full board of directors, by its independent directors or by a nominations committee that is composed entirely of independent directors.

The corporate governance requirements and, specifically, the independence standards are intended to ensure directors who are considered independent are free of any conflicting interest that could influence their actions as directors. Following this offering, we intend to utilize certain exemptions afforded to a “controlled company.” As a result, we will not be subject to certain corporate governance requirements, including that a majority of our board of directors consists of “independent directors,” as defined under the rules of the Nasdaq. In addition, we are not required to have director nominations be made, or recommended to the full board of directors, by its independent directors or by a nominations committee that is composed entirely of independent directors.

Accordingly, you may not have the same protections afforded to stockholders of companies that are subject to all of the corporate governance requirements of the Nasdaq rules. Our status as a controlled company could make our Class A common stock less attractive to some investors or otherwise harm our stock price.

No market currently exists for our Class A common stock, and an active, liquid trading market for our Class A common stock may not develop, which may cause our Class A common stock to trade at a discount from the initial offering price and make it difficult for you to sell the Class A common stock you purchase.

Prior to this offering, there has not been a public market for our Class A common stock. We cannot predict the extent to which investor interest in us will lead to the development of a trading market or how active and liquid that market may become. If an active and liquid trading market does not develop or continue, you may have difficulty selling any of our Class A common stock that you purchase at a price above the price you purchase it or at all. The initial public offering price for the shares was determined by negotiations between us and the underwriters and may not be indicative of prices that will prevail in the open market following this offering. The failure of an active and liquid trading market to develop and continue would likely have a material adverse effect on the value of our Class A common stock. The market price of our Class A common stock may decline below the initial offering price, and you may not be able to sell your shares of our Class A common stock at or above the price you paid in this offering, or at all. An inactive market may also impair our ability to raise capital to continue to fund operations by selling shares and may impair our ability to acquire other companies or technologies by using our shares as consideration.

Our amended and restated certificate of incorporation will provide that the Court of Chancery of the State of Delaware will be the sole and exclusive forum for certain stockholder litigation matters, and the federal district courts of the United States shall be the exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers, employees or stockholders.

Our amended and restated certificate of incorporation will provide (A) (i) any derivative action or proceeding brought on behalf of the Company, (ii) any action asserting a claim of breach of a fiduciary duty owed by any current or former director, officer, other employee or stockholder of the Company to the Company or the Company’s stockholders, (iii) any action asserting a claim arising pursuant to any provision of the DGCL, our amended and restated certificate of incorporation or our amended and restated bylaws (as either may be amended or restated) or as to which the DGCL confers jurisdiction on the Court of Chancery of the State of Delaware or (iv) any action asserting a claim governed by the internal affairs doctrine of the law of the State of Delaware shall, to the fullest extent permitted by law, be exclusively brought in the Court of Chancery of the State of Delaware or, if such court does not have subject matter jurisdiction thereof, the federal district court of the State of Delaware; and (B) the federal district courts of the United States shall be the exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act. Notwithstanding the foregoing, the exclusive forum provision shall not apply to claims seeking to enforce any liability or duty created by the Exchange Act. The choice of forum provision may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for

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disputes with us or our directors, officers, or other employees, which may discourage such lawsuits against us and our directors, officers, and other employees. Alternatively, if a court were to find the choice of forum provision contained in our amended and restated certificate of incorporation to be inapplicable or unenforceable in an action, we may incur additional costs associated with resolving such action in other jurisdictions, which could harm our business, results of operations, and financial condition. Any person or entity purchasing or otherwise acquiring any interest in shares of our capital stock shall be deemed to have notice of and consented to the forum provisions in our amended and restated certificate of incorporation.

Our amended and restated certificate of incorporation provides that the doctrine of “corporate opportunity” will not apply with respect to any director or stockholder who is not employed by us or our subsidiaries.

The doctrine of corporate opportunity generally provides that a corporate fiduciary may not develop an opportunity using corporate resources, acquire an interest adverse to that of the corporation or acquire property that is reasonably incident to the present or prospective business of the corporation or in which the corporation has a present or expectancy interest, unless that opportunity is first presented to the corporation and the corporation chooses not to pursue that opportunity. The doctrine of corporate opportunity is intended to preclude officers or directors or other fiduciaries from personally benefiting from opportunities that belong to the corporation. Our amended and restated certificate of incorporation, which will be in effect upon the consummation of the Transactions, will provide that the doctrine of “corporate opportunity” will not apply with respect to any director or stockholder who is not employed by us or our subsidiaries. Any director or stockholder who is not employed by us or our subsidiaries will, therefore, have no duty to communicate or present corporate opportunities to us, and will have the right to either hold any corporate opportunity for their (and their affiliates’) own account and benefit or to recommend, assign or otherwise transfer such corporate opportunity to persons other than us, including to any director or stockholder who is not employed by us or our subsidiaries.

As a result, certain of our stockholders, directors, and their respective affiliates, including AES Grid Stability, Siemens Industry, the Blocker Shareholder, and any of our directors nominated by them that is not employed by us or our subsidiaries, will not be prohibited from operating or investing in competing businesses. We, therefore, may find ourselves in competition with certain of our stockholders, directors, or their respective affiliates, and we may not have knowledge of, or be able to pursue, transactions that could potentially be beneficial to us. Accordingly, we may lose a corporate opportunity or suffer competitive harm, which could negatively impact our business, operating results, and financial condition.

If securities analysts do not publish research or reports about our business or if they downgrade our stock or our sector, or if there is any fluctuation in our credit rating, our stock price and trading volume could decline.

The trading market for our Class A common stock will rely in part on the research and reports that industry or financial analysts publish about us or our business. We do not control these analysts. Securities and industry analysts do not currently, and may never, publish research on our company. If no securities or industry analysts commence coverage of us, the trading price of our shares would likely be negatively impacted. Furthermore, if one or more of the analysts who do cover us downgrade our stock or our industry, or the stock of any of our competitors, or publish inaccurate or unfavorable research about our business, the price of our stock could decline. If one or more of these analysts stops covering us or fails to publish reports on us regularly, we could lose visibility in the market, which, in turn, could cause our stock price or trading volume to decline.

Additionally, any fluctuation in the credit rating of us or our subsidiaries may impact our ability to access debt markets in the future or increase our cost of future debt, which could have a material adverse effect on our operations and financial condition, which in return may adversely affect the trading price of shares of our Class A common stock.

Future sales, or the perception of future sales, by us or our existing stockholders in the public market following this offering could cause the market price for our Class A common stock to decline.

After this offering, the sale of shares of our Class A common stock in the public market, or the perception that such sales could occur, could harm the prevailing market price of shares of our Class A

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common stock. These sales, or the possibility that these sales may occur, also might make it more difficult for us to sell equity securities in the future at a time and at a price that we deem appropriate.

Upon consummation of the Transactions, we will have outstanding a total of shares of Class A common stock. Of the outstanding shares, the shares sold in this offering (or shares if the underwriters exercise in full their option to purchase additional shares) will be freely tradable without restriction or further registration under the Securities Act, other than any shares held by our affiliates. In addition, the shares of Class A common stock issued to the Blocker Shareholder in the Transactions will be eligible for resale pursuant to Rule 144 without restriction or further registration under the Securities Act, other than affiliate restrictions under Rule 144. Any shares of Class A common stock held by our affiliates will be eligible for resale pursuant to Rule 144 under the Securities Act, subject to the volume, manner of sale, holding period and other limitations of Rule 144.

Our directors and executive officers, and substantially all of our stockholders have entered into lock-up agreements with the underwriters prior to the commencement of this offering pursuant to which each of these persons or entities, subject to certain exceptions, for a period of 180 days after the date of this prospectus, may not, without the prior written consent of J.P. Morgan Securities LLC and Morgan Stanley & Co. LLC on behalf of the underwriters, (1) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any Class A common stock or any securities convertible into or exercisable or exchangeable for Class A common stock; or (2) file any registration statement with the Securities and Exchange Commission relating to the offering of any Class A common stock or any securities convertible into or exercisable or exchangeable for Class A common stock; or (3) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of the Class A common stock, whether any such transaction described in clauses (1), (2), or (3) is to be settled by delivery of Class A common stock or such other securities, in cash or otherwise. See “Underwriting.”

In addition, we have reserved shares of Class A common stock for issuance pursuant to equity incentives issued pursuant to the Existing Equity Plan which will convert upon effectiveness of this offering into options and other rights to acquire shares of Class A common stock, as well as shares of Class A common stock equal to % of the total number of outstanding LLC Interests following this offering for issuance under the 2021 Plan. Any Class A common stock that we issue under the 2021 Plan or other equity incentive plans that we may adopt in the future would dilute the percentage ownership held by the investors who purchase Class A common stock in this offering.

As restrictions on resale end or if these stockholders exercise their registration rights, the market price of our shares of Class A common stock could drop significantly if the holders of these shares sell them or are perceived by the market as intending to sell them. These factors could also make it more difficult for us to raise additional funds through future offerings of our shares of Class A common stock or other securities.

In the future, we may also issue securities in connection with investments, acquisitions or capital raising activities. In particular, the number of shares of our Class A common stock issued in connection with an investment or acquisition, or to raise additional equity capital, could constitute a material portion of our then-outstanding shares of our Class A common stock. Any such issuance of additional securities in the future may result in additional dilution to you, or may adversely impact the price of our Class A common stock.

Our stock price may change significantly following the offering, and you may not be able to resell shares of our Class A common stock at or above the price you paid or at all, and you could lose all or part of your investment as a result.

The initial public offering price for the shares was determined by negotiations between us and the underwriters. You may not be able to resell your shares at or above the initial public offering price due to a number of factors included herein, including the following:

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results of operations that vary from the expectations of securities analysts and investors;

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results of operations that vary from those of our competitors;

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changes in expectations as to our future financial performance, including financial estimates and investment recommendations by securities analysts and investors;

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technology changes, changes in consumer behavior in our industry;

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security breaches related to our systems or those of our affiliates or strategic partners;

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changes in economic conditions for companies in our industry;

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changes in market valuations of, or earnings and other announcements by, companies in our industry;

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declines in the market prices of stocks generally, particularly those of energy storage providers;

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strategic actions by us or our competitors;

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announcements by us, our competitors or our strategic partners of significant contracts, new products, acquisitions, joint marketing relationships, joint ventures, other strategic relationships, or capital commitments;

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changes in general economic or market conditions or trends in our industry or the economy as a whole and, in particular, in the energy storage environment;

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changes in business or regulatory conditions;

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future sales of our Class A common stock or other securities;

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investor perceptions of the investment opportunity associated with our Class A common stock relative to other investment alternatives;

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the public’s response to press releases or other public announcements by us or third parties, including our filings with the SEC;

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announcements relating to litigation or governmental investigations;

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guidance, if any, that we provide to the public, any changes in this guidance, or our failure to meet this guidance;

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the development and sustainability of an active trading market for our stock;

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changes in accounting principles; and

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other events or factors, including those resulting from system failures and disruptions, natural disasters, war, acts of terrorism, an outbreak of highly infectious or contagious diseases, such as the COVID-19 pandemic, or responses to these events.

Furthermore, the stock market may experience extreme volatility that, in some cases, may be unrelated or disproportionate to the operating performance of particular companies. These broad market and industry fluctuations may adversely affect the market price of our Class A common stock, regardless of our actual operating performance. In addition, price volatility may be greater if the public float and trading volume of our Class A common stock is low.

In the past, following periods of market volatility, stockholders have instituted securities class action litigation. If we were involved in securities litigation, it could have a substantial cost and divert resources and the attention of management from our business regardless of the outcome of such litigation.

If you purchase shares of Class A common stock in this offering, you will suffer immediate and substantial dilution of your investment.

The initial public offering price of our Class A common stock is substantially higher than the net tangible book value per share of our Class A common stock. Therefore, if you purchase shares of our Class A common stock in this offering, you will pay a price per share that substantially exceeds our net tangible book value per share after this offering. You will experience immediate dilution of $ per share, representing the difference between our net tangible book value per share after giving effect to this offering and the initial public offering price. In addition, investors who purchase Class A common stock from us in this

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offering will have contributed % of the aggregate price paid by all purchasers of our outstanding equity but will own only approximately % of our outstanding equity after this offering. See “Dilution” for more detail, including the calculation of the net tangible book value per share of our Class A common stock.

Risks Related to Our Existing Shareholders

Our articles of incorporation limit our Continuing Equity Owners’ and their directors’ and officers’ liability to us or you for breach of fiduciary duty and could also prevent us from benefiting from corporate opportunities that might otherwise have been available to us.

Our articles of incorporation will provide that, subject to any contractual provision to the contrary, our Continuing Equity Owners will have no obligation to refrain from:

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engaging in the same or similar business activities or lines of business as we do;

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doing business with any of our clients, customers, vendors or lessors;

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employing or otherwise engaging any of our officers or employees; or

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making investments in any property in which we may make investments.

Under our articles of incorporation, neither Continuing Equity Owners nor any officer or director of Continuing Equity Owners, except as provided in our articles of incorporation, will be liable to us or to our stockholders for breach of any fiduciary duty by reason of any of these activities.

Any interests or expectancy in corporate opportunities which become known to (i) any of our directors or officers who are also directors, officers, employees or other affiliates of Continuing Equity Owners or their affiliates (except that we and our subsidiaries shall not be deemed affiliates of Continuing Equity Owners or its affiliates for the purposes of the provision), or dual persons, or (ii) our Continuing Equity Owners themselves, and which relate to the business of Fluence or may constitute a corporate opportunity for both our Continuing Equity Owners and us. Generally, neither our Continuing Equity Owners nor our directors or officers who are also dual persons will be liable to us or our stockholders for breach of any fiduciary duty by reason of the fact that any such person pursues or acquires any corporate opportunity for the account of our Continuing Equity Owners or their affiliates, directs, recommends, sells, assigns or otherwise transfers such corporate opportunity to Our Continuing Equity Owners or its affiliates, or does not communicate information regarding such corporate opportunity to us. The corporate opportunity provision may exacerbate conflicts of interest between our Continuing Equity Owners and us because the provision effectively permits one of our directors or officers who also serves as a director, officer, employee or other affiliate of Our Continuing Equity Owners to choose to direct a corporate opportunity to our Continuing Equity Owners instead of us.

Our Continuing Equity Owners will not be restricted from competing with us in the energy storage business, including as a result of acquiring a company that operates an energy storage business. Due to the significant resources of our Continuing Equity Owners, including their intellectual property (all of which our Continuing Equity Owners will retain and certain of which they will license to us under the IP License Agreements), financial resources, name recognition and know-how resulting from the previous management of our business, our Continuing Equity Owners could have a significant competitive advantage over us should it decide to utilize these resources to engage in the type of business we conduct, which may cause our operating results and financial condition to be materially adversely affected.

We are controlled by the Continuing Equity Owners, whose interests may differ from those of our public stockholders.

Immediately following this offering and the application of net proceeds from this offering, the Continuing Equity Owners will control approximately % of the combined voting power of our common stock through their ownership of both Class A common stock and Class B-1 common stock. The Continuing Equity Owners will, for the foreseeable future, have the ability to substantially influence us through their ownership position over corporate management and affairs. The Continuing Equity Owners are able to, subject to applicable law, and the voting arrangements described in “Certain Relationships and Related Party Transactions,” elect a majority of the members of our board of directors and control

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actions to be taken by us and our board of directors, including amendments to our certificate of incorporation and bylaws and approval of significant corporate transactions, including mergers and sales of substantially all of our assets. The directors so elected will have the authority, subject to the terms of our indebtedness and applicable rules and regulations, to issue additional stock, implement stock repurchase programs, declare dividends and make other decisions. It is possible that the interests of the Continuing Equity Owners may in some circumstances conflict with our interests and the interests of our other stockholders, including you. For example, the Continuing Equity Owners may have different tax positions from us, especially in light of the Tax Receivable Agreement, that could influence our decisions regarding whether and when to dispose of assets, whether and when to incur new or refinance existing indebtedness, and whether and when we should terminate the Tax Receivable Agreement and accelerate its obligations thereunder. In addition, the determination of future tax reporting positions and the structuring of future transactions may take into consideration the Continuing Equity Owners’ tax or other considerations, which may differ from the considerations of us or our other stockholders. See “Certain Relationships and Related Party Transactions—Tax Receivable Agreement.”

Certain of our officers and directors may have actual or potential conflicts of interest because of their positions with our Continuing Equity Owners.

Following this offering, will serve on our board of directors and will retain their positions with AES, Siemens, or QIA, as applicable. These individuals’ holdings in and compensation from the Continuing Equity Owners may be significant for some of these persons. Their positions at AES, Siemens, or QIA, their compensation from AES, Siemens or QIA and the ownership of any equity or equity awards in AES, Siemens, or QIA, as applicable, may create the appearance of conflicts of interest when these individuals are faced with decisions that could have different implications for our Continuing Equity Owners than the decisions have for us.

We rely on our access to our Founders’ brands and reputation, some of our Founders’ relationships, and the brands and reputations of unaffiliated third parties.

We believe the association with our Founders has contributed to our building relationships with our customers due to their recognized brands and products, as well as resources such as their intellectual property and access to third parties’ intellectual property. Any perceived loss of our Founders’ scale, capital base and financial strength as a result of this offering, or any actual loss in the future, may prompt business partners to reprice, modify or terminate their relationships with us. In addition, our Founders’ reduction of their ownership of our company may cause some of our existing agreements and licenses to be terminated. We cannot predict with certainty the effect that this offering will have on our business.

Third parties may seek to hold us responsible for liabilities of our Founders, which could result in a decrease in our income.

Third parties may seek to hold us responsible for our Founders’ liabilities. If those liabilities are significant and we are ultimately held liable for them, we cannot assure that we will be able to recover the full amount of our losses from our Founders.

We may be required to pay additional taxes as a result of partnership tax audit rules.

We may be required to pay additional taxes as a result of partnership audit rules under U.S. federal and other applicable income tax law. The Bipartisan Budget Act of 2015 changed the rules applicable to U.S. federal income tax audits of partnerships, including entities such as Fluence Energy, LLC. Under these rules (which generally are effective for taxable years beginning after December 31, 2017), subject to certain exceptions, audit adjustments to items of income, gain, loss, deduction, or credit of an entity (and any holder’s share thereof) are determined, and taxes, interest, and penalties attributable thereto, are assessed and collected, at the partnership level. Although there is uncertainty about how these rules will continue to be implemented, it is possible that they could result in Fluence Energy, LLC (or any of its subsidiaries that are or have been treated as partnerships for U.S. federal income tax purposes) being required to pay additional taxes, interest, and penalties as a result of an audit adjustment, and we, as an owner of Fluence Energy, LLC (or as an indirect owner of such other entities), could be required to indirectly bear the economic burden

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of those taxes, interest, and penalties even if they relate to periods prior to this offering and even though we may not otherwise have been required to pay additional corporate-level taxes as a result of the related audit adjustment.

We may incur certain tax liabilities attributable to the Blocker Company as a result of the transactions contemplated to occur in connection with this offering.

In connection with the Transactions and pursuant to the Blocker Mergers, the Blocker Company will merge with and into us. See “Our Organizational Structure.” As the successor to the Blocker Company, we will generally succeed to and be responsible for any outstanding or historical liabilities, including tax liabilities, of the Blocker Company, including any liabilities that might be incurred as a result of the Blocker Mergers. Any such liabilities for which we are responsible could have an adverse effect on our liquidity and financial condition.

We may not achieve some or all of the anticipated benefits of being a standalone public company.

We may not be able to achieve all of the anticipated strategic and financial benefits expected as a result of being a standalone public company, or such benefits may be delayed or not occur at all. These anticipated benefits include the following:

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allowing investors to evaluate the distinct merits, performance and future prospects of our business, independent of our Founders’ other businesses;

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improving our strategic and operational flexibility and increasing management focus as we continue to implement our strategic plan and allowing us to respond more effectively to the competitive environment for our business;

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allowing us to adopt a capital structure better suited to our financial profile and business needs, without competing for capital with our Founders’ other businesses;

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creating an independent equity structure that will facilitate our ability to effect future acquisitions utilizing our capital stock; and

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facilitating incentive compensation arrangements for employees more directly tied to the performance of our business, and enhancing employee hiring and retention by, among other things, improving the alignment of management and employee incentives with performance and growth objectives of our business.

We may not achieve the anticipated benefits of being a standalone public company for a variety of reasons, and it could adversely affect our operating results and financial condition.

The services that we receive from our Founders may not be sufficient for us to operate our business, and we would likely incur significant incremental costs if we lost access to our Founders’ services.

Because we have not operated as an independent company, we have obtained, and will need to continue to obtain, services from our Founders relating to many important corporate functions including the support we receive from AES relating to clean energy project development and the access Siemens provides to its global sales channels, among various others. We will pay our Founders mutually agreed-upon fees for these services, which will be based on their costs of providing the services.

If we lost access to the services provided to us by certain of our Founders, we would need to replicate or replace certain functions, systems, and infrastructure. We may also need to make investments or hire additional employees to operate without the same access to our Founders’ existing operational infrastructure and wide-ranging support. These initiatives may be costly to implement. Due to the scope and complexity of the underlying projects relative to these efforts, the amount of total costs could be materially higher than our estimate, and the timing of the incurrence of these costs could be subject to change.

We may not be able to replace these services or enter into appropriate third-party agreements on terms and conditions, including cost, comparable to those that we have received in the past and will continue to receive from our Founders. Additionally, if the agreements pursuant to which such services are provided are

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terminated, we may be unable to sustain the services at the same levels or obtain the same benefits as when we were receiving such services and benefits from our Founders. If we have to operate these functions separately, if we do not have our own adequate systems and business functions in place or if we are unable to obtain them from other providers, we may not be able to operate our business effectively or at comparable costs, and our profitability may decline. In addition, we have historically received informal support from certain of our Founders. The level of this informal support could diminish or be eliminated following this offering.

While we are controlled by our Continuing Equity Owners, we may not have the leverage to negotiate amendments to our agreements with our Founders, if required, on terms as favorable to us as those we would negotiate with an unaffiliated third party.

Our historical financial results are not necessarily representative of the results we have or may achieve as a standalone company and may not be a reliable indicator of our future results.

Our historical financial results included in this prospectus do not reflect the financial condition, results of operations or cash flows we would have achieved as a standalone company during the periods presented or those we will achieve in the future. This is primarily the result of the following factors:

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our historical financial results reflect charges for the use of certain proprietary and third-party intellectual property licensed or sublicensed from certain of our Founders under a prior intercompany intellectual property license agreement;

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our cost of potential future debt and our capital structure will be different from that reflected in our historical financial statements;

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we will incur additional ongoing costs as a result of this offering, including costs related to public company reporting, investor relations, and compliance with the Sarbanes-Oxley Act; and

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this offering may have a material effect on our relationship with our players and our other business relationships, including supplier relationships.

Our financial condition and future results of operations could be materially different from amounts reflected in our historical financial statements included elsewhere in this prospectus, so it may be difficult for investors to compare our future results to historical results or to evaluate our relative performance or trends in our business.

Similarly, the pro forma financial information included in this prospectus includes adjustments based upon available information we believe to be reasonable. However, the assumptions may change and actual results may differ. In addition, we have not made pro forma adjustments to reflect changes that will occur in our cost structure, funding, and operations as a result of our transition to becoming a public company, including any changes that may occur in our employee base, potential increased costs associated with reduced economies of scale and increased costs associated with being a publicly traded, standalone company.

Risks Related to Our Organizational Structure

Our principal asset after the completion of this offering will be our interest in Fluence Energy, LLC, and, as a result, we will depend on distributions from Fluence Energy, LLC to pay our taxes and expenses, including payments under the Tax Receivable Agreement. Fluence Energy, LLC’s ability to make such distributions may be subject to various limitations and restrictions.

Upon the consummation of this offering and the Transactions, we will be a holding company and will have no material assets other than our ownership of LLC Interests. As such, we will have no independent means of generating revenue or cash flow, and our ability to pay our taxes and operating expenses or declare and pay dividends in the future, if any, will be dependent upon the financial results and cash flows of Fluence Energy, LLC and its subsidiaries and distributions we receive from Fluence Energy, LLC. There can be no assurance that Fluence Energy, LLC and its subsidiaries will generate sufficient cash flow to distribute funds to us or that applicable state law and contractual restrictions, including negative covenants in our debt instruments, will permit such distributions. Although Fluence Energy, LLC is not currently subject

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to any debt instruments or other agreements that would restrict its ability to make distributions to us, our future debt agreements, including our Revolver, may restrict the ability of our subsidiaries to pay dividends to Fluence Energy, LLC.

Fluence Energy, LLC will continue to be treated as a partnership for U.S. federal income tax purposes and, as such, generally will not be subject to any entity-level U.S. federal income tax. Instead, any taxable income of Fluence Energy, LLC will be allocated to holders of LLC Interests, including us. Accordingly, we will incur income taxes on our allocable share of any net taxable income of Fluence Energy, LLC. Following this offering, we expect to use distributions from Fluence Energy, LLC to fund any payments that we will be required to make under the Tax Receivable Agreement. Under the terms of the Fluence Energy LLC Agreement, Fluence Energy, LLC will be obligated, subject to various limitations and restrictions, including with respect to our debt agreements, to make tax distributions to holders of LLC Interests, including us, although tax distributions may not be paid in whole or in part in certain circumstances, including if Fluence Energy, LLC does not have available cash to make such distributions. In addition to tax expenses, we will also incur expenses related to our operations, including payments under the Tax Receivable Agreement, which we expect could be significant. See “Certain Relationships and Related Party Transactions—Tax Receivable Agreement.” We intend, as its managing member, to cause Fluence Energy, LLC to make cash distributions to the holders of LLC Interests in an amount sufficient to (1) fund all or part of their tax obligations in respect of taxable income allocated to them and (2) cover our operating expenses, including payments under the Tax Receivable Agreement. However, Fluence Energy, LLC’s ability to make such distributions may be subject to various limitations and restrictions, such as restrictions on distributions that would either violate any contract or agreement to which Fluence Energy, LLC is then a party, including debt agreements, or any applicable law, or that would have the effect of rendering Fluence Energy, LLC insolvent. If we do not have sufficient funds to pay tax or other liabilities, or to fund our operations (including, if applicable, as a result of an acceleration of our obligations under the Tax Receivable Agreement), we may have to borrow funds, which could materially and adversely affect our liquidity and financial condition, and subject us to various restrictions imposed by any lenders of such funds. To the extent we are unable to make timely payments under the Tax Receivable Agreement for any reason, such payments generally will be deferred and will accrue interest until paid; provided, however, that nonpayment for a specified period may constitute a material breach of a material obligation under the Tax Receivable Agreement resulting in the acceleration of payments due under the Tax Receivable Agreement. See “Certain Relationships and Related Party Transactions—Tax Receivable Agreement” and “Certain Relationships and Related Party Transactions—Fluence Energy LLC Agreement.” In addition, if Fluence Energy, LLC does not have sufficient funds to make distributions, our ability to declare and pay cash dividends will also be restricted or impaired. See “—Risks related to the offering and ownership of our Class A common stock” and “Dividend Policy.”

As a result of (1) potential differences in the amount of net taxable income allocable to us and to Fluence Energy, LLC’s other equityholders, (2) the lower tax rate applicable to corporations as opposed to individuals, and (3) certain tax benefits that we anticipate from (a) future redemptions or exchanges of LLC Interests from the Founders, (b) payments under the Tax Receivable Agreement and (c) certain other transactions, tax distributions to us may be in amounts that exceed our tax liabilities. Our board of directors will determine the appropriate uses for any excess cash so accumulated, which may include, among other uses, the payment of obligations under the Tax Receivable Agreement. We will have no obligation to distribute such cash (or other available cash) to our stockholders. No adjustments to the redemption or exchange ratio or price for LLC Interests and corresponding shares of Class B-1 or Class B-2 common stock will be made as a result of any cash distribution by us or any retention of cash by us. To the extent we do not distribute such excess cash as dividends on our Class A common stock, we may take other actions with respect to such excess cash, for example, holding such excess cash, or lending it (or a portion thereof) to Fluence Energy, LLC or its subsidiaries, which may result in shares of our Class A common stock increasing in value relative to the value of LLC Interests. The holders of LLC Interests may benefit from any value attributable to such cash balances or loan receivables if they acquire shares of Class A common stock in exchange for their LLC Interests or otherwise exercise their rights to redeem or exchange their LLC Interests, notwithstanding that such holders may have participated previously as holders of LLC Interests in distributions by Fluence Energy, LLC that resulted in the excess cash balances.

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The Tax Receivable Agreement with the Founders requires us to make cash payments to them in respect of certain tax benefits to which we may become entitled, and we expect that such payments will be substantial.

In connection with the consummation of this offering, we will enter into a Tax Receivable Agreement with Fluence Energy, LLC and the Founders. Under the Tax Receivable Agreement, we will be required to make cash payments to such Founders equal to 85% of the tax benefits, if any, that we actually realize, or in certain circumstances are deemed to realize, as a result of (1) the increases in our share of the tax basis of assets of Fluence Energy, LLC and its subsidiaries resulting from any future redemptions or exchanges of LLC Interests from the Founders as described under “Certain Relationships and Related Party Transactions—Fluence Energy LLC Agreement” and certain distributions (or deemed distributions) by Fluence Energy, LLC; and (2) certain other tax benefits arising from payments under the Tax Receivable Agreement. We anticipate funding ordinary course payments under the Tax Receivable Agreement from cash flow from operations of our subsidiaries, available cash or available borrowings under any future debt agreements. We expect that the amount of the cash payments we will be required to make under the Tax Receivable Agreement will be substantial. Based on certain assumptions described in “Unaudited Pro Forma Consolidated Financial Information”, we estimate our Founders will be entitled to receive payments under the Tax Receivable Agreement (assuming all Founders exchange their LLC Interests for shares of Class A common stock on the date of this offering) totaling approximately $797.0 million. Any payments made by us to the Founders under the Tax Receivable Agreement will not be available for reinvestment in our business and will generally reduce the amount of overall cash flow that might have otherwise been available to us and have a substantial negative impact on our liquidity. To the extent that we are unable to make timely payments under the Tax Receivable Agreement for any reason, the unpaid amounts generally will be deferred and will accrue interest until paid; provided, however, that nonpayment for a specified period may constitute a material breach of a material obligation under the Tax Receivable Agreement resulting in the acceleration of payments due under the Tax Receivable Agreement. The payments under the Tax Receivable Agreement are not conditioned upon continued ownership of us by the redeeming or exchanging Founders. Furthermore, our future obligation to make payments under the Tax Receivable Agreement could make us a less attractive target for an acquisition, particularly in the case of an acquirer that cannot use some or all of the tax benefits that are the subject of the Tax Receivable Agreement. For more information, see “Certain Relationships and Related Party Transactions—Tax Receivable Agreement.” The actual increase in tax basis, and the actual utilization of any resulting tax benefits, as well as the amount and timing of any payments under the Tax Receivable Agreement, will vary depending upon a number of factors: including the timing of redemptions of exchanges by the Founders; the price of shares of our Class A common stock at the time of the exchange; the extent to which such redemptions or exchanges are taxable; the amount of gain recognized by such Founders; the amount and timing of the taxable income allocated to us or otherwise generated by us in the future; the portion of our payments under the Tax Receivable Agreement constituting imputed interest; and the federal and state tax rates then applicable.

Our organizational structure, including the Tax Receivable Agreement, confers certain benefits upon the Founders that will not benefit holders of our Class A common stock to the same extent that it will benefit the Founders.

Our organizational structure, including the Tax Receivable Agreement, confers certain benefits upon the Founders that will not benefit the holders of our Class A common stock to the same extent that it will benefit such Founders. We will enter into the Tax Receivable Agreement with Fluence Energy, LLC and certain Founders in connection with the completion of this offering and the Transactions, which will provide for the payment by us to such Founders of 85% of the amount of tax benefits, if any, that we actually realize, or in some circumstances are deemed to realize, as a result of (1) the increases in our share of the tax basis of assets of Fluence Energy, LLC and its subsidiaries resulting from any future redemptions or exchanges of LLC Interests from the Founders as described under “Certain Relationships and Related Party Transactions—Fluence Energy LLC Agreement” and certain distributions (or deemed distributions) by Fluence Energy, LLC and (2) certain other tax benefits arising from payments under the Tax Receivable Agreement. See “Certain Relationships and Related Party Transactions—Tax Receivable Agreement.” Although we will retain 15% of the amount of such tax benefits, this and other aspects of our organizational structure may adversely impact the future trading market for the Class A common stock.

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In certain cases, payments under the Tax Receivable Agreement may be accelerated or significantly exceed any actual benefits we realize in respect of the tax attributes subject to the Tax Receivable Agreement.

The Tax Receivable Agreement will provide that if (1) we materially breach any of our material obligations under the Tax Receivable Agreement and the Continuing Equity Owners elect an early termination of the Tax Receivable Agreement, (2) certain mergers, asset sales, other forms of business combinations or other changes of control were to occur after the consummation of this offering and the Continuing Equity Owners elect an early termination of the Tax Receivable Agreement, or (3) we elect, at any time, an early termination of the Tax Receivable Agreement, then our obligations, or our successor’s obligations, under the Tax Receivable Agreement to make payments would be based on certain assumptions, including an assumption that we would have sufficient taxable income to fully utilize all potential future tax benefits that are subject to the Tax Receivable Agreement.

As a result of the foregoing, we would be required to make an immediate cash payment equal to the present value of the anticipated future tax benefits that are the subject of the Tax Receivable Agreement, based on certain assumptions, which payment may be made significantly in advance of the actual realization, if any, of such future tax benefits. We could also be required to make cash payments to the Founders that are greater than the specified percentage of any actual benefits we ultimately realize in respect of the tax benefits that are subject to the Tax Receivable Agreement. In these situations, our obligations under the Tax Receivable Agreement could have a substantial negative impact on our liquidity and could have the effect of delaying, deferring, or preventing certain mergers, asset sales, other forms of business combinations or other changes of control. There can be no assurance that we will be able to fund or finance our obligations under the Tax Receivable Agreement. To the extent we are unable to make timely payments under the Tax Receivable Agreement for any reason, such payments generally will be deferred and will accrue interest until paid; provided, however, that nonpayment for a specified period may constitute a material breach of a material obligation under the Tax Receivable Agreement resulting in the acceleration of payments due under the Tax Receivable Agreement. We may need to incur debt to finance payments under the Tax Receivable Agreement to the extent our cash resources are insufficient to meet our obligations under the Tax Receivable Agreement as a result of timing discrepancies or otherwise.

We will not be reimbursed for any payments made under the Tax Receivable Agreement in the event that any tax benefits are disallowed.

Payments under the Tax Receivable Agreement will be based on the tax reporting positions that we determine, and the U.S. Internal Revenue Service, or the IRS, or another tax authority, may challenge all or part of the tax basis increases or other tax benefits we claim, as well as other related tax positions we take, and a court could sustain such challenge. If the outcome of any audit of us or our subsidiaries is reasonably expected to adversely affect the rights and obligations of the Continuing Equity Owners under the Tax Receivable Agreement in a material respect, then we will notify the Continuing Equity Owners of such audit, keep them reasonably informed with respect thereto, provide them with a reasonable opportunity to provide information and other input concerning the audit or the relevant portion thereof and consider such information and other input in good faith. The interests of such Founders in any such challenge may differ from or conflict with our interests and your interests, and the Founders may exercise their rights relating to any such challenge in a manner adverse to our interests and your interests. We will not be reimbursed for any cash payments previously made under the Tax Receivable Agreement in the event that any tax benefits initially claimed by us and for which payment has been made are subsequently challenged by a taxing authority and are ultimately disallowed. Instead, any excess cash payments made by us will be netted against any future cash payments we might otherwise be required to make to the applicable Founder under the terms of the Tax Receivable Agreement. However, we might not determine that we have effectively made an excess cash payment to a Founder for a number of years following the initial time of such payment and, if any of our tax reporting positions are challenged by a taxing authority, we will not be permitted to reduce any future cash payments under the Tax Receivable Agreement until any such challenge is finally settled or determined. Moreover, the excess cash payments we made previously under the Tax Receivable Agreement could be greater than the amount of future cash payments against which we would otherwise be permitted to net such excess. The applicable U.S. federal income tax rules for determining applicable tax benefits we may claim are complex and factual in nature, and there can be no assurance that the IRS or a court will not disagree with our tax reporting positions. As a result, payments could be made

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under the Tax Receivable Agreement significantly in excess of any actual cash tax savings that we realize in respect of the tax attributes that are the subject of the Tax Receivable Agreement.

Unanticipated changes in effective tax rates or adverse outcomes resulting from examination of our income or other tax returns could adversely affect our results of operations and financial condition.

We are subject to taxes by the U.S. federal, state, local, and foreign tax authorities. Our future effective tax rates could be subject to volatility or adversely affected by a number of factors, including:

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allocation of expenses to and among different jurisdictions;

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changes in the valuation of our deferred tax assets and liabilities;

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expected timing and amount of the release of any tax valuation allowances;

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tax effects of stock-based compensation;

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costs related to intercompany restructurings;

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changes in tax laws, tax treaties, regulations or interpretations thereof; or

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lower than anticipated future earnings in jurisdictions where we have lower statutory tax rates and higher than anticipated future earnings in jurisdictions where we have higher statutory tax rates.

In addition, we may be subject to audits of our income, sales and other taxes by U.S. federal, state, and local, and foreign taxing authorities. Outcomes from these audits could have an adverse effect on our operating results and financial condition.

If we were deemed to be an investment company under the Investment Company Act of 1940, as amended, or the 1940 Act, including as a result of our ownership of Fluence Energy, LLC, applicable restrictions could make it impractical for us to continue our business as contemplated and could have a material adverse effect on our business.

Under Sections 3(a)(1)(A) and (C) of the 1940 Act, a company generally will be deemed to be an “investment company” for purposes of the 1940 Act if (1) it is, or holds itself out as being, engaged primarily, or proposes to engage primarily, in the business of investing, reinvesting or trading in securities, or (2) it engages, or proposes to engage, in the business of investing, reinvesting, owning, holding or trading in securities and it owns or proposes to acquire investment securities having a value exceeding 40% of the value of its total assets (exclusive of U.S. government securities and cash items) on an unconsolidated basis. We do not believe that we are an “investment company,” as such term is defined in either of those sections of the 1940 Act.

We and Fluence Energy, LLC intend to conduct our operations so that we will not be deemed an investment company. As the sole managing member of Fluence Energy, LLC, we will control and operate Fluence Energy, LLC. On that basis, we believe that our interest in Fluence Energy, LLC is not an “investment security” as that term is used in the 1940 Act. However, if we were to cease participation in the management of Fluence Energy, LLC, or if Fluence Energy, LLC itself becomes an investment company, our interest in Fluence Energy, LLC could be deemed an “investment security” for purposes of the 1940 Act.

We and Fluence Energy, LLC intend to conduct our operations so that we will not be deemed an investment company. If it were established that we were an unregistered investment company, there would be a risk that we would be subject to monetary penalties and injunctive relief in an action brought by the SEC, that we would be unable to enforce contracts with third parties and that third parties could seek to obtain rescission of transactions undertaken during the period it was established that we were an unregistered investment company. If we were required to register as an investment company, restrictions imposed by the 1940 Act, including limitations on our capital structure and our ability to transact with affiliates, could make it impractical for us to continue our business as contemplated and could have a material adverse effect on our business.

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General Risk Factors

We will incur significant costs as a result of operating as a public company.

Prior to this offering, we operated on a private basis. After this offering, we will be subject to the reporting requirements of the Exchange Act, the Sarbanes-Oxley Act, the Dodd-Frank Act, the listing requirements of the exchange on which our securities are listed and other applicable securities laws and regulations. The expenses incurred by public companies generally for reporting and corporate governance purposes have been increasing. We expect these rules and regulations to increase our legal and financial compliance costs and to make some activities more difficult, time-consuming, and costly, although we are currently unable to estimate these costs with any degree of certainty. We also expect that being a public company and being subject to new rules and regulations will make it more expensive for us to obtain director and officer liability insurance, and we may be required to accept reduced coverage or incur substantially higher costs to obtain coverage. These laws and regulations could also make it more difficult for us to attract and retain qualified persons to serve on our board of directors, our board committees or as our executive officers. Furthermore, if we are unable to satisfy our obligations as a public company, we could be subject to delisting of our Class A common stock, fines, sanctions, and other regulatory action and potentially civil litigation. These factors may, therefore, strain our resources, divert management’s attention, and affect our ability to attract and retain qualified board members.

As a result of becoming a public company following our IPO, we will be obligated to develop and maintain proper and effective internal control over financial reporting in order to comply with Section 404 of the Sarbanes-Oxley Act. We may not complete our analysis of our internal control over financial reporting in a timely manner, or these internal controls may not be determined to be effective, which may adversely affect investor confidence in us and, as a result, the value of our common stock. In addition, because of our status as an emerging growth company, you will not be able to depend on any attestation from our independent registered public accountants as to our internal control over financial reporting for the foreseeable future.

We will become a public company following our IPO, and we will be required by Section 404 of the Sarbanes-Oxley Act to furnish a report by management on, among other things, the effectiveness of our internal control over financial reporting as of the year ending September 30, 2022. The process of designing and implementing internal control over financial reporting required to comply with this requirement will be time-consuming, costly, and complicated. If during the evaluation and testing process we identify one or more other material weaknesses in our internal control over financial reporting or determine that existing material weaknesses have not been remediated, our management will be unable to assert that our internal control over financial reporting is effective. In addition, if we fail to achieve and maintain the adequacy of our internal controls, as such standards are modified, supplemented, or amended from time to time, we may not be able to ensure that we can conclude on an ongoing basis that we have effective internal controls over financial reporting in accordance with Section 404 of the Sarbanes-Oxley Act.

Even if our management concludes that our internal control over financial reporting is effective, our independent registered public accounting firm may issue a report that is qualified if it is not satisfied with our controls or the level at which our controls are documented, designed, operated, or reviewed. However, our independent registered public accounting firm will not be required to attest formally to the effectiveness of our internal control over financial reporting pursuant to Section 404 of the Sarbanes-Oxley Act until the later of the filing of our second annual report following the completion of our IPO or the date we are no longer an “emerging growth company,” as defined in the JOBS Act. Accordingly, you will not be able to depend on any attestation concerning our internal control over financial reporting from our independent registered public accountants for the foreseeable future.

During the fiscal year ended September 30, 2020, a material weakness in the internal control over revenue recognition process has been identified. The design and implementation of controls has not been sufficient to adequately interpret ASC 606 in the design of the accounting policy related to in-transit and delivered, but uninstalled equipment. We are in the process of developing a remediation plan which includes, without limitation, i) hiring additional experienced accounting, financial reporting and internal control personnel as we transition to being a public company and are required to comply with Section 404 of the Sarbanes-Oxley Act, ii) implementing controls to enhance our review of significant accounting transactions

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and other new technical accounting and financial reporting issues and preparing and reviewing accounting memoranda addressing these issues, and iii) implementing controls to enable an effective and timely review of account analyses and account reconciliations. We have recently hired additional resources, and we are engaging with a third-party consulting firm to assist us with our formal internal control plan and provide staff augmentation of our internal audit function.

The material weaknesses will not be considered remediated until management designs and implements effective controls that operate for a sufficient period of time and management has concluded, through testing, that these controls are effective.

We and our independent registered public accounting firm were not required to, and did not, perform an evaluation of our internal control over financial reporting as of September 30, 2020, in accordance with Section 404(b) of the Sarbanes-Oxley Act. Accordingly, we cannot assure you that we have identified all, or that we will not in the future have additional, material weaknesses. Material weaknesses may still exist when we report on the effectiveness of our internal control over financial reporting as required under Section 404 of the Sarbanes-Oxley Act.

We cannot be certain as to the timing of completion of our evaluation, testing, and any remediation actions or the impact of the same on our operations. If we are not able to implement the requirements of Section 404 of the Sarbanes-Oxley Act in a timely manner or with adequate compliance, our independent registered public accounting firm may issue an adverse opinion due to ineffective internal controls over financial reporting, and we may be subject to sanctions or investigation by regulatory authorities, such as the SEC. As a result, there could be a negative reaction in the financial markets due to a loss of confidence in the reliability of our financial statements. In addition, we may be required to incur costs in improving our internal control system and the hiring of additional personnel. Any such action could negatively affect our results of operations and cash flows.

Our management team has limited experience managing a public company.

Most members of our management team have limited experience managing a publicly traded company, interacting with public company investors, and complying with the increasingly complex laws pertaining to public companies. Our management team may not successfully or efficiently manage us as a public company that is subject to significant regulatory oversight and reporting obligations under the federal securities laws and the continuous scrutiny of securities analysts and investors. These new obligations and constituents require significant attention from our senior management and could divert their attention away from the day-to-day management of our business, which could adversely affect our business, results of operations and financial condition. See “—We will incur significant costs as a result of operating as a public company.”

Future litigation or administrative proceedings could have a material adverse effect on our business, financial condition, and results of operations.

We have been and continue to be involved in legal proceedings, administrative proceedings, claims, and other litigation. In addition, since our energy storage product is a new type of product in a nascent market, we have in the past needed and may in the future need to seek the amendment of existing regulations or, in some cases, the creation of new regulations, in order to operate our business in some jurisdictions. Such regulatory processes may require public hearings concerning our business, which could expose us to subsequent litigation. Unfavorable outcomes or developments relating to proceedings to which we are a party or transactions involving our products and services, such as judgments for monetary damages, injunctions, or denial or revocation of permits, could have a material adverse effect on our business, financial condition, and results of operations. In addition, settlement of claims could adversely affect our financial condition and results of operations.

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus contains forward-looking statements. All statements other than statements of historical facts contained in this prospectus may be forward-looking statements. Statements regarding our future results of operations and financial position, business strategy and plans, and objectives of management for future operations, including, among others, statements regarding the Transactions, including the consummation of this offering, expected growth, future capital expenditures and debt service obligations, are forward-looking statements. In some cases, you can identify forward-looking statements by terms, such as “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “could,” “intends,” “targets,” “projects,” “contemplates,” “believes,” “estimates,” “predicts,” “potential” or “continue” or the negative of these terms or other similar expressions. Accordingly, we caution you that any such forward-looking statements are not guarantees of future performance and are subject to risks, assumptions, and uncertainties that are difficult to predict. Although we believe that the expectations reflected in these forward-looking statements are reasonable as of the date made, actual results may prove to be materially different from the results expressed or implied by the forward-looking statements.

There are or will be important factors that could cause our actual results to differ materially from those indicated in these forward-looking statements. Forward-looking statements contained in this prospectus include, but are not limited to, the following:

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our future financial performance, including our ability to achieve or maintain profitability;

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our ability to successfully execute our business and growth strategy;

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the sufficiency of our cash and cash equivalents to meet our liquidity needs;

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our ability to attract and retain customers;

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our ability to develop new offerings and services, including digital applications;

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our ability to optimize sales channels and market segmentation;

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our ability to compete with existing and new competitors in existing and new markets and offerings;

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the impact of the COVID-19 pandemic on our ground operations at project sites, our manufacturing facilities and our suppliers and vendors;

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our ability to maintain customer contracts due to events and incidents relating to storage, delivery, installation, operation and shutdowns of our energy storage products, including events and incidents outside of our control;

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our ability to prevent defects, errors, or bugs in hardware or software of our products and technology as well as any product liability or other claims;

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our expectations regarding the effects of existing and developing laws and regulations;

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our expectations regarding our global growth;

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our expectations regarding the size and growth of our existing and future markets in which we compete;

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our expectations concerning our relationships with third parties;

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our ability to maintain, protect, and enhance our intellectual property;

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the increased expenses associated with being a public company;

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our use of proceeds from this offering; and

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the significant influence the Continuing Equity Owners will have over us after the Transactions, including control over decisions that require the approval of stockholders.

The outcome of the events described in these forward-looking statements is subject to risks, uncertainties, and other factors described in the section titled “Risk Factors” and elsewhere in this prospectus. If one or more events related to such risks or uncertainties materialize, or if our underlying assumptions prove to be incorrect, actual results may differ materially from what we anticipate. Many of the important

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factors that will determine these results are beyond our ability to control or predict. Accordingly, you should not place undue reliance on any such forward-looking statements. In addition, statements that “we believe” and similar statements reflect our beliefs and opinions on the relevant subject. These statements are based upon information available to us as of the date of this prospectus, and while we believe such information forms a reasonable basis for such statements, such information may be limited or incomplete, and our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all potentially available relevant information. These statements are inherently uncertain, and you are cautioned not to unduly rely upon these statements. Any forward-looking statement speaks only as of the date on which it is made, and, except as otherwise required by law, we do not undertake any obligation to publicly update or review any forward-looking statement, whether as a result of new information, future developments or otherwise. New factors emerge from time to time, and it is not possible for us to predict which will arise. In addition, we cannot assess the impact of each factor on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements.

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OUR ORGANIZATIONAL STRUCTURE

Fluence Energy, Inc., a Delaware corporation, was formed on June 21, 2021 and is the issuer of the Class A common stock offered by this prospectus. Prior to this offering and the Transactions (as defined below), all of our business operations have been conducted through Fluence Energy, LLC and its direct and indirect subsidiaries and the Original LLC Owners are the only owners of Fluence Energy, LLC. We will consummate the Transactions, excluding this offering, prior to the consummation of this offering.

Existing Organization

Fluence Energy, LLC is treated as a partnership for U.S. federal income tax purposes and, as such is generally not subject to any U.S. federal entity-level income taxes. Taxable income or loss of Fluence Energy, LLC is included in the U.S. federal income tax returns of Fluence Energy, LLC’s members. Prior to the consummation of this offering, the Original LLC Owners were the only members of Fluence Energy, LLC.

Transactions

Prior to the Transactions, we expect there will initially be one holder of common stock of Fluence Energy, Inc. We will consummate the following organizational transactions in connection with this offering:

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we will amend and restate Fluence Energy, Inc.’s certificate of incorporation to, among other things, provide (1) for Class A common stock, with each share of our Class A common stock entitling its holder to one vote per share on all matters presented to our stockholders generally, (2) for Class B-1 common stock, with each share of our Class B-1 common stock entitling its holder to five votes per share on all matters presented to our stockholders generally, (3) for Class B-2 common stock, with each share of our Class B-2 common stock entitling its holder to one vote per share on all matters presented to our stockholders generally, and that shares of our Class B-1 and Class B-2 common stock may only be held by the Founders and their respective permitted transferees as described in “Description of Capital Stock—Common Stock—Class B-1 and Class B-2 Common Stock;”

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we will acquire, by means of one or more mergers, the Blocker Company and will issue to the Blocker Shareholder shares of our Class A common stock as consideration in the Blocker Mergers;

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we will issue shares of our Class B-1 common stock to the Founders, which is equal to the number of LLC Interests held by such Founders, for nominal consideration;

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Fluence Energy, Inc. and the Continuing Equity Owners will enter into (1) the Stockholders Agreement and (2) the Registration Rights Agreement, and Fluence Energy, Inc., Fluence Energy, LLC and the Founders will enter into the Tax Receivable Agreement. For a description of the terms of the Stockholders Agreement, the Registration Rights Agreement and the Tax Receivable Agreement, see “Certain Relationships and Related Party Transactions.”

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Organizational Structure Following the Transactions

Immediately following the consummation of the Transactions (including this offering):

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Fluence Energy, Inc. will be the sole managing member of Fluence Energy, LLC and will control the business and affairs of Fluence Energy, LLC and its direct and indirect subsidiaries;

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The Blocker Shareholder will own (1) shares of Class A common stock of Fluence Energy, Inc. (or shares of Class A common stock of Fluence Energy, Inc. if the underwriters exercise in full their option to purchase additional shares of Class A common stock), representing approximately % of the combined voting power of all of Fluence Energy, Inc.’s common stock and approximately % of the economic interest in Fluence Energy, Inc. (or approximately % of the combined voting power and approximately % of the economic interest if the underwriters exercise in full their option to purchase additional shares of Class A common stock) and (2) directly and indirectly through Fluence Energy, Inc.’s ownership of LLC Interests, approximately % of the economic interest in Fluence Energy, LLC (or approximately % of the economic interest in Fluence Energy, LLC if the underwriters exercise in full their option to purchase additional shares of Class A common stock);

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we will have shares of Class A common stock reserved for issuance pursuant to awards under our incentive compensation plans — see “Executive Compensation — Equity Compensation”.

Our post-offering organizational structure, as described above, is commonly referred to as an umbrella partnership-C-corporation (or Up-C) structure. This organizational structure will allow our Founders to retain their equity ownership in Fluence Energy, LLC, an entity that is classified as a partnership for U.S. federal income tax purposes, in the form of LLC Interests. Investors in this offering and the Blocker Shareholder will, by contrast, hold their equity ownership in Fluence Energy, Inc., a Delaware corporation that is a domestic corporation for U.S. federal income tax purposes, in the form of shares of Class A common

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stock. This approach provides the Founders with the tax treatment of continuing to own interests in a pass-through structure and provides potential future tax benefits for both Fluence Energy, Inc. and the Founders when the Founders ultimately redeem their LLC Interests for shares of Class A common stock or cash from the sale of newly issued shares of Class A common stock. One of the tax benefits to the Founders associated with this structure is that the portion of Fluence Energy, LLC’s future taxable income that is allocated to the Founders will be taxed for U.S. federal income tax purposes on a flow-through basis and therefore will not be subject to corporate income taxes for such purposes at the Fluence Energy, LLC level. Additionally, because the Founders will be entitled to have their LLC Interests redeemed for newly issued shares of our Class A common stock on a one-for-one basis or, at our option, for cash from the sale of newly issued shares of Class A common stock, the Up-C structure also provides the Founders with potential liquidity that holders of non-publicly traded limited liability companies are not typically afforded.

Fluence Energy, Inc. also expects to benefit from the Up-C structure, in general, in the form of cash tax savings in amounts equal to 15% of certain tax benefits that Fluence Energy, Inc. actually realizes (or in some circumstances is deemed to have realized) arising from Basis Adjustments (as defined below) and certain other tax benefits related to our entering into the Tax Receivable Agreement, including tax benefits attributable to payments under the Tax Receivable Agreement. Such cash tax benefits and cash tax savings generally would not be available to Fluence Energy, Inc. without the Up-C structure. The Tax Receivable Agreement is discussed in “Certain Relationships and Related Party Transactions—Tax Receivable Agreement,” and the estimated payments with respect thereto are set forth in “—The Offering—Tax receivable agreement.” See “Risk Factors—Risks Related to Our Company and Our Organizational Structure.”

This diagram excludes shares of Class A common stock reserved for issuance under options or phantom shares issued pursuant to the Existing Equity Plan which will convert upon effectiveness of this offering into options to acquire shares of Class A common stock, or shares of Class A common stock reserved for issuance under our 2021 Equity Plan.

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will control the management of Fluence Energy, LLC as its sole managing member. As a result, Fluence Energy, Inc. will consolidate Fluence Energy, LLC and record a significant non-controlling interest in a consolidated entity in Fluence Energy, Inc.’s consolidated financial statements for the economic interest in Fluence Energy, LLC held by the Founders.

Incorporation of Fluence Energy, Inc.

Fluence Energy, Inc., the issuer of the Class A common stock offered by this prospectus, was incorporated as a Delaware corporation on June 21, 2021. Fluence Energy, Inc. has not engaged in any business transactions or activities to date and had no assets or liabilities during the periods presented in this prospectus, and will not engage in any activities prior to consummation of this offering except in connection with its formation and the Transactions. The amended and restated certificate of incorporation of Fluence Energy, Inc. that will become effective immediately prior to the consummation of this offering will, among other things, authorize three classes of common stock, Class A common stock, Class B-1 common stock and Class B-2 common stock, each having the terms described in “Description of Capital Stock.”

Reclassification and Amendment and Restatement of the Fluence Energy LLC Agreement

Prior to the consummation of this offering, the existing limited liability company agreement of Fluence Energy, LLC will be amended and restated to, among other things, recapitalize its capital structure by creating a single new class of units that we refer to as “common units” and provide for a right of redemption of common units in exchange for, at our election (determined solely by our independent directors (within the meaning of the rules of the Nasdaq), who are disinterested), shares of our Class A common stock or cash from the sale of newly issued shares of Class A common stock. See “Certain Relationships and Related Party Transactions—Fluence Energy LLC Agreement.”

Tax Receivable Agreement

Prior to the completion of this offering, we will enter into a Tax Receivable Agreement with our Founders that provides for the payment by Fluence Energy, Inc. to such Founders of 85% of the benefits, if any, that Fluence Energy, Inc. actually realizes, or is deemed to realize (calculated using certain assumptions), as a result of (i) increases in Fluence Energy, Inc.’s allocable share of the tax basis of the assets of Fluence Energy, LLC and its subsidiaries resulting from future redemptions or exchanges of LLC Interests by the Founders and (ii) certain other tax benefits related to our entering into the Tax Receivable Agreement, including tax benefits attributable to payments under the Tax Receivable Agreement. Future redemptions or exchanges of LLC Interests are expected to result in increases in the tax basis of the assets of Fluence Energy, LLC and certain of its subsidiaries. The increases in existing tax basis and the tax basis adjustments generated over time may increase (for tax purposes) the depreciation and amortization deductions available to Fluence Energy, Inc. and, therefore, may reduce the amount of U.S. federal, state and local tax that Fluence Energy, Inc. would otherwise be required to pay in the future. Actual tax benefits realized by Fluence Energy, Inc. may differ from tax benefits calculated under the Tax Receivable Agreement as a result of the use of certain assumptions in the Tax Receivable Agreement, including the use of an assumed state and local income tax rate to calculate tax benefits. This payment obligation is an obligation of Fluence Energy, Inc. and not of Fluence Energy, LLC, and is expected to be significant. We anticipate funding ordinary course payments under the Tax Receivable Agreement from cash flow from operations of our subsidiaries, available cash or available borrowings under any future debt agreements. We expect that the amount of the cash payments we will be required to make under the Tax Receivable Agreement will be substantial. We estimate our Founders will be entitled to receive payments under the Tax Receivable Agreement (assuming all Founders exchange their LLC Interests for shares of Class A common stock on the date of this offering) totaling approximately $797.0 million. Any payments made by us to the Founders under the Tax Receivable Agreement will not be available for reinvestment in our business and will generally reduce the amount of overall cash flow that might have otherwise been available to us and have a substantial negative impact on our liquidity. To the extent that we are unable to make timely payments under the Tax Receivable Agreement for any reason, the unpaid amounts generally will be deferred and will accrue interest until paid; provided, however, that nonpayment for a specified period may constitute a material breach of a material obligation under the Tax Receivable Agreement resulting in the acceleration of payments due under the Tax Receivable Agreement. See “Certain Relationships and Related Person Transactions—Tax Receivable Agreement.”

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USE OF PROCEEDS

We intend to use the net proceeds from this offering to purchase newly issued LLC Interests (or LLC Interests if the underwriters exercise in full their option to purchase additional shares of Class A common stock) directly from Fluence Energy, LLC at a price per unit equal to the initial public offering price per share of Class A common stock in this offering less the underwriting discount and estimated offering expenses payable by us.

Fluence Energy, LLC intends to use the net proceeds from the sale of LLC Interests to Fluence Energy, Inc. to repay all outstanding amounts under our existing Line of Credit and the Promissory Notes (as defined below), and the remainder for working capital and other general corporate purposes.

On August 11, 2021, Fluence Energy, LLC entered into a promissory note with each of Siemens Industry (the “Siemens Promissory Note”) and AES Grid Stability, (the “AES Promissory Note” and together with the Siemens Promissory Note, the “Promissory Notes”), under which Fluence Energy, LLC received a bridge financing of an aggregate of $50.0 million. In connection with the bridge financing, Fluence Energy, LLC issued a $25.0 million promissory note to each of Siemens Industry and AES Grid Stability. The Promissory Notes are unsecured, the AES Promissory Note has a maturity date of August 11, 2022 and the Siemens Promissory Note has a maturity date of December 31, 2021. If we complete a private placement or public offering of certain equity securities prior to the maturity date, the Promissory Notes and all accrued interest thereunder will automatically and without notice be due and payable within five business days. The Promissory Notes bear interest at 2.86% per annum through and until the earliest of the maturity date thereunder and or a mandatory prepayment event (including consummation of this offering), at which time the interest rate will increase by an additional 2%. The proceeds from the Promissory Notes are being used by Fluence Energy, LLC to provide additional liquidity and to fund ongoing working capital needs.

Assuming no exercise of the underwriters’ option to purchase additional shares of Class A common stock, each $1.00 increase (decrease) in the assumed initial public offering price of $ per share (which is the midpoint of the estimated price range set forth on the cover page of this prospectus) would increase (decrease) the net proceeds to us from this offering by approximately $ million and, in turn, the net proceeds received by Fluence Energy, LLC from the sale of LLC Interests to Fluence Energy, Inc. by $ million, assuming the number of shares offered, as set forth on the cover page of this prospectus, remains the same, and after deducting the underwriting discount and estimated offering expenses payable by us.

Each 1,000,000 share increase (decrease) in the number of shares offered by us in this offering would increase (decrease) the net proceeds to us from this offering by approximately $ million and, in turn, the net proceeds received by Fluence Energy, LLC from the sale of LLC Interests to Fluence Energy, Inc. by $ million, assuming that the price per share for the offering remains at $ (which is the midpoint of the estimated price range set forth on the cover page of this prospectus), and after deducting the underwriting discount and estimated offering expenses payable by us.

Fluence Energy, LLC will bear or reimburse Fluence Energy, Inc. for all of the expenses incurred in connection with the Transactions, including this offering.

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CAPITALIZATION

The following table sets forth our cash and cash equivalents, and capitalization as of June 30, 2021, as follows:

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on a historical basis for Fluence Energy, LLC and its subsidiaries; and

•

a pro forma basis for Fluence Energy Inc., giving effect to the Transactions described under “Unaudited Consolidated Pro Forma Financial Information,” including the Reorganization Transactions, and application of the proceeds from this offering as described in “Use of Proceeds,” after deducting estimated underwriting discounts and commissions and estimated offering expenses and other related transaction costs payable by us.

For more information, please see “Our Organizational Structure,” “Use of Proceeds” and “Unaudited Pro Forma Consolidated Financial Information” included elsewhere in this prospectus. You should read this information together with our consolidated financial statements and the related notes included elsewhere in this prospectus and the “Management’s Discussion and Analysis of Financial Condition and Results of Operations” section and other financial information contained in this prospectus.

As of June 30, 2021
(unaudited)

(in thousands, except share and per share amounts)

Fluence Energy,
LLC Actual

Fluence Energy,
Inc. Pro Forma
As Adjusted

Cash and cash equivalents

58,497

Long-term debt

—

Mezzanine equity

117,272

Members’ equity:

Total members’ (deficit) equity

(86,459)

Stockholders’ equity:

Class A common stock – $0.01 par value per share, shares authorized on a pro forma basis, shares issued and outstanding on a pro forma basis

Class B-1 common stock – $0.01 par value per share, shares authorized on a pro forma basis, shares issued and outstanding on a pro forma basis

Class B-2 common stock – $0.01 par value per share, shares
authorized on a pro forma basis, no shares issued and outstanding on
a pro forma basis

Additional paid in capital

Accumulated deficit

Total members’/stockholders’ (deficit) equity attributable to Fluence Energy, LLC/Fluence Energy, Inc.

(86,459)

Non-controlling interest

Total capitalization

30,813

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DIVIDEND POLICY

We currently intend to retain all available funds and any future earnings to fund the development and growth of our business, and therefore we do not anticipate declaring or paying any cash dividends on our Class A common stock in the foreseeable future. Holders of our Class B-1 and Class B-2 common stock are not entitled to participate in any dividends declared by our board of directors. Furthermore, because we are a holding company, our ability to pay cash dividends on our Class A common stock depends on our receipt of cash distributions from Fluence Energy, LLC and, through Fluence Energy, LLC, cash distributions and dividends from our other direct and indirect subsidiaries. Assuming Fluence Energy, LLC makes distributions out of earnings and profits (other than tax distributions and other distributions to pay expenses) to its members in any given year, we currently expect, subject to the determination of our board of directors, to pay dividends on our Class A common stock out of the portion of such distributions remaining after our payment of taxes, Tax Receivable Agreement payments and expenses, and subject to Delaware law. Our ability to pay dividends may be restricted by the terms of any future credit agreement or any future debt or preferred equity securities of us or our subsidiaries. See “Description of Capital Stock” and “Management’s Discussion and Analysis of Financial Condition and Results of Operation—Liquidity and Capital Resources.” Any future determination as to the declaration and payment of dividends, if any, will be at the discretion of our board of directors and subject to compliance with contractual restrictions and covenants in the agreements governing our future indebtedness. Any such determination will also depend upon our business prospects, results of operations, financial condition, cash requirements and availability and other factors that our board of directors may deem relevant.

Accordingly, you may need to sell your shares of our Class A common stock to realize a return on your investment, and you may not be able to sell your shares at or above the price you paid for them. See “Risk Factors—Risks related to the offering and ownership of our Class A common stock—Because we have no current plans to pay regular cash dividends on our Class A common stock following this offering, you may not receive any return on investment unless you sell your Class A common stock for a price greater than that which you paid for it.”

Immediately following this offering, we will be a holding company, and our principal asset will be the LLC Interests we purchase from Fluence Energy, LLC and acquire indirectly from the Blocker Shareholder. If we decide to pay a dividend in the future, we may need to cause Fluence Energy, LLC to make distributions to us in an amount sufficient to cover such dividend. If Fluence Energy, LLC makes such distributions to us, the other holders of LLC Interests will be entitled to receive pro rata distributions, although tax distributions that Fluence Energy, LLC makes may not be pro rata. See “Risk Factors—Risks related to our organizational structure—Our principal asset after the completion of this offering will be our interest in Fluence Energy, LLC, and, as a result, we will depend on distributions from Fluence Energy, LLC to pay our taxes and expenses, including payments under the Tax Receivable Agreement. Fluence Energy, LLC’s ability to make such distributions may be subject to various limitations and restrictions.”

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DILUTION

The Founders will own LLC Interests after the Transactions, and the Blocker Shareholder will receive shares of Class A common stock in the Transactions. We have presented dilution in pro forma net tangible book value per share both before and after this offering assuming that all of the holders of LLC Interests (other than Fluence Energy, Inc.) had their LLC Interests redeemed or exchanged for newly issued shares of Class A common stock on a one-for-one basis (rather than for cash) and the automatic transfer to the Company and cancellation for no consideration of all of their shares of Class B-1 and Class B-2 common stock (which are not entitled to receive distributions or dividends, whether cash or stock from Fluence Energy, Inc.) in order to more meaningfully present the dilutive impact on the investors in this offering. We refer to the assumed redemption or exchange of all LLC Interests for shares of Class A common stock as described in the previous sentence as the Assumed Redemption.

Dilution is the amount by which the offering price paid by the purchasers of the Class A common stock in this offering exceeds the pro forma net tangible book value per share of Class A common stock after the offering. Fluence Energy, LLC’s pro forma net tangible book value as of June 30, 2021 prior to this offering and after giving effect to the other Transactions and the Assumed Redemption was a deficit of $ million. Pro forma net tangible book value per share prior to this offering is determined by subtracting our total liabilities from the total book value of our tangible assets and dividing the difference by the number of shares of Class A common stock deemed to be outstanding after giving effect to the Assumed Redemption.

If you invest in our Class A common stock in this offering, your ownership interest will be immediately diluted to the extent of the difference between the initial public offering price per share and the pro forma net tangible book value per share of our Class A common stock after this offering.

Pro forma net tangible book value per share after this offering is determined by subtracting our total liabilities from the total book value of our tangible assets and dividing the difference by the number of shares of Class A common stock deemed to be outstanding, after giving effect to the Transactions, including this offering and the application of the net proceeds from this offering as described in “Use of Proceeds,” and the Assumed Redemption. Our pro forma net tangible book value as of June 30, 2021, after giving effect to this offering would have been approximately a deficit of $ million , or $ per share of Class A common stock. This amount represents an immediate increase in pro forma net tangible book value of $ per share to our existing stockholders and an immediate dilution in pro forma net tangible book value of approximately $ per share to new investors purchasing shares of Class A common stock in this offering. We determine dilution by subtracting the pro forma net tangible book value per share after this offering from the amount of cash that a new investor paid for a share of Class A common stock. The following table illustrates this dilution:

The following table illustrates this dilution on a per share basis to new investors.

	Assumed initial public offering price per share of common stock						$
	Pro forma net tangible book value per share as of June 30, 2021
	Increase per share attributable to new investors purchasing shares of common stock in this offering
	Pro forma as adjusted net tangible book value per share immediately after this offering						$
	Dilution in pro forma as adjusted net tangible book value per share to new common stock investors in this offering						$

The following table summarizes, as of June 30, 2021, after giving effect to the Transactions (including this offering) and the Assumed Redemption, the number of shares of Class A common stock purchased from us, the total consideration paid, or to be paid, to us and the average price per share paid, or to be paid, by existing owners and by the new investors. The calculation below is based on an assumed initial public offering price of $ per share, which is the midpoint of the estimated price range set forth on the cover page of this prospectus, before deducting the underwriting discounts and commissions and estimated offering expenses payable by us.

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Shares Purchased

Total Consideration

Average
price per
Share

Number

Percent

Amount

Percent

Existing stockholders

New investors

Total

100%

Each $1.00 increase (decrease) in the assumed initial public offering price of $ per share would increase (decrease) the total consideration paid by new investors and the total consideration paid by all stockholders by $ , assuming the number of shares offered by us and the selling stockholder, as set forth on the cover page of this prospectus, remains the same and after deducting the underwriting discounts and commissions but before estimated offering expenses.

The number of shares of our Class A common stock outstanding after this offering as shown in the tables above is based on the number of shares outstanding as of , 2021, after giving effect to the Transactions and the Assumed Redemption. The discussion and tables above exclude shares of Class B-1 and Class B-2 common stock, because holders of the Class B-1 and Class B-2 common stock are not entitled to distributions or dividends, whether cash or stock, from Fluence Energy, Inc. To the extent that options are issued under our compensatory stock plans or we issue additional shares of common stock in the future, there will be further dilution to investors participating in this offering.

Except as otherwise indicated, the discussion and the tables above assume no exercise of the underwriters’ option to purchase additional shares of Class A common stock. If the underwriters exercise in full their option to purchase additional shares of Class A common stock, the percentage of shares of Class A common stock held by the Continuing Equity Owners will decrease to approximately % of the total number of shares of our Class A common stock outstanding after this offering; and the number of shares held by new investors will increase to , or approximately % of the total number of shares of our Class A common stock outstanding after this offering.

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UNAUDITED PRO FORMA CONSOLIDATED FINANCIAL INFORMATION

Fluence Energy, Inc. was formed on June 21, 2021 and does not have historical financial results. Fluence Energy, Inc. currently has no assets or liabilities and has conducted no operations. The following unaudited pro forma consolidated financial information reflects the impact of this offering, after giving effect to the Transactions discussed in “Our Organizational Structure.” Following the completion of the Transactions, Fluence Energy, Inc. will be a holding company whose principal asset will consist of % of the outstanding LLC Interests that it acquires directly from Fluence Energy, LLC and indirectly from the Blocker Shareholder in connection with this offering. The remaining LLC Interests will be held by the Founders. Fluence Energy, Inc. will act as the sole managing member of Fluence Energy, LLC. Fluence Energy, Inc. will operate and control the business and affairs of Fluence Energy, LLC and its direct and indirect subsidiaries, and, through Fluence Energy, LLC and its direct and indirect subsidiaries, conduct its business.

The following unaudited pro forma consolidated statements of operations for the year ended September 30, 2020 and the nine months ended June 30, 2021 give effect to the Transactions, including this offering, as if the same had occurred on October 1, 2019. The unaudited pro forma consolidated balance sheet as of June 30, 2021 presents our unaudited pro forma balance sheet giving effect to the Transactions, including this offering, as if they had occurred as of June 30, 2021.

We have derived the unaudited pro forma consolidated statement of operations and unaudited pro forma consolidated balance sheet from the consolidated financial statements of Fluence Energy, LLC and its subsidiaries included elsewhere in this prospectus. The historical consolidated financial information of Fluence Energy, LLC has been adjusted in this unaudited pro forma consolidated financial information to give effect to events that are directly attributable to the Transactions, are factually supportable and, with respect to the consolidated statement of operations, are expected to have a continuing impact on Fluence Energy, Inc. The unaudited pro forma consolidated financial information reflects adjustments that are described in the accompanying notes and are based on available information and certain assumptions we believe are reasonable but are subject to change.

We refer to the adjustments related to the Transactions, including the impact of the Transactions described in “Our Organizational Structure,” but excluding the adjustments related to the Offering, as the Pro Forma Transaction Adjustments.

The adjustments related to this offering, which we refer to as the Pro Forma Offering Adjustments, are described in the notes to the unaudited pro forma consolidated financial information and principally include the following:

•

the amendment and restatement of the limited liability company agreement of Fluence Energy, LLC to, among other things, appoint Fluence Energy, Inc. as the sole managing member of Fluence Energy, LLC and provide certain redemption rights to the Founders;

•

the issuance of shares of our Class A common stock to the Blocker Shareholder in one or more mergers, pursuant to which we acquire their LLC Interests;

•

the execution of the Tax Receivable Agreement and recognition of the related payable under such agreement; and

•

the issuance of shares of our Class A common stock to the investors in this offering in exchange for net proceeds of approximately $ million (based on an assumed initial public offering price of $ per share, the midpoint of the estimated price range set forth on the cover page of this prospectus), after deducting the underwriting discounts and commissions but before estimated offering expenses payable by us.

Except as otherwise indicated, the unaudited pro forma consolidated financial information presented assumes no exercise by the underwriters of their option to purchase additional shares of Class A common stock in the offering.

As a public company, we will be implementing additional procedures and processes for the purpose of addressing the standards and requirements applicable to public companies. We expect to incur additional

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annual expenses related to these additional procedures and processes and, among other things, additional directors’ and officers’ liability insurance, director fees, additional expenses associated with complying with the reporting requirements of the SEC, transfer agent fees, costs relating to additional accounting, legal and administrative personnel, increased auditing, tax and legal fees, stock exchange listing fees and other public company expenses. We have not included any pro forma adjustments relating to these costs in the information below.

The unaudited pro forma consolidated financial information is included for informational purposes only. The unaudited pro forma consolidated financial information should not be relied upon as being indicative of our results of operations or financial condition had the Transactions, including this offering, occurred on the dates assumed. The unaudited pro forma consolidated financial information also does not project our results of operations or financial position for any future period or date. The unaudited pro forma consolidated statement of operations and balance sheet should be read in conjunction with the “Risk Factors,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and our consolidated financial statements and related notes included elsewhere in this prospectus.

We expect to obtain an increase in the tax basis of our share of the assets of Fluence Energy, LLC and certain of its subsidiaries when common units are redeemed or exchanged by the Founders if the value of the common units redeemed or exchanged exceeds the existing tax basis of the corresponding share of the assets of Fluence Energy, LLC at the time of the redemption or exchange, and in other qualifying transactions. This increase in tax basis may have the effect of reducing the amounts that we would otherwise pay in the future to various tax authorities. The increase in tax basis may also decrease gains (or increase losses) on future dispositions of certain capital assets to the extent tax basis is allocated to those capital assets. In connection with the consummation of this offering, we will enter into a Tax Receivable Agreement with AES Grid Stability and Siemens Industry that will provide for the payment by us to AES Grid Stability and Siemens Industry of 85% of the amount of tax benefits, if any, that we actually realize or in some cases are deemed to realize as a result of certain increases in the tax basis of assets of Fluence Energy, LLC and its subsidiaries resulting from, redemptions or exchanges (or deemed exchanges) of LLC Interests or certain distributions (or deemed distributions) by Fluence Energy, LLC and (ii) certain additional tax benefits related to our entering into the Tax Receivable Agreement, including tax benefits attributable to payments that we make under the Tax Receivable Agreement. See “Related Party Transactions—Tax Receivable Agreement.”

If all of the Founders were to exchange or redeem their LLC Interests for Class A common stock pursuant to the terms of the Fluence Energy LLC Agreement, we would recognize a deferred tax asset of approximately $893.9 million and a related liability for payments under the Tax Receivable Agreement of approximately $797.0 million, assuming, among other factors, (i) all exchanges occurred on the same day; (ii) a price of $ per share of Class A common stock (the midpoint of the estimated price range set forth on the cover of this prospectus); (iii) a constant corporate tax rate of 27%; (iv) we will have sufficient taxable income to fully utilize the tax benefits; (v) Fluence Energy, LLC is able to fully depreciate or amortize its assets; and (vi) no material changes in applicable tax law. These amounts are estimates and have been prepared for informational purposes only. The actual amount of deferred tax assets and related liabilities that we will recognize will differ based on, among other things, the timing of the redemptions or exchanges, the price of our shares of Class A common stock at the time of the redemptions or exchanges and the tax rates then in effect.

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Fluence Energy, Inc. and subsidiaries

Unaudited pro forma consolidated balance sheet as of June 30, 2021

	Fluence Energy, LLC, Historical(1)			Pro Forma Transaction Adjustments			Pro Forma Fluence Energy, Inc.

Assets
Current assets:
Cash and cash equivalents		$	58,497		$	(4)(7)		$
Trade receivables			61,456
Unbilled receivables			122,994