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                              July 21, 2021

       Francis Fuselier
       General Counsel
       Fluence Energy, Inc.
       4601 Fairfax Drive, Suite 600
       Arlington, VA 22203

                                                        Re: Fluence Energy,
Inc.
                                                            Confidential Draft
Registration Statement on Form S-1
                                                            Submitted June 24,
2021
                                                            CIK No. 0001868941

       Dear Mr. Fuselier:

              We have reviewed your draft registration statement and have the
following comments. In
       some of our comments, we may ask you to provide us with information so
we may better
       understand your disclosure.

              Please respond to this letter by providing the requested
information and either submitting
       an amended draft registration statement or publicly filing your
registration statement on
       EDGAR. If you do not believe our comments apply to your facts and
circumstances or do not
       believe an amendment is appropriate, please tell us why in your
response.

             After reviewing the information you provide in response to these
comments and your
       amended draft registration statement or filed registration statement, we
may have additional
       comments.

       DRS Filed June 24, 2021

       Overview, page 78

   1.                                                   Please revise to
clarify how the number of MW deployed in 2020 compared to 2019
                                                        resulted in a change in
revenue of more than 500%.
       General

   2.                                                   Please disclose the
total economic value of the payments under the Tax Receivable
                                                        Agreement. Because it
appears that you use Adjusted EBITDA as a significant metric for
                                                        measuring your
financial performance and because this measure does not account for a
                                                        reduction in a deferred
tax asset, please describe the impact the arrangement has on the
                                                        business's total
enterprise value and, consequently, the price of the securities you will be
 Francis Fuselier
Fluence Energy, Inc.
July 21, 2021
Page 2
      offering in the IPO. The discussion of the Tax Receivable Agreement and
the redirection
      of cash flows to the pre-IPO owners should be given more prominence in
your prospectus
      than is currently present. While the current disclosure is descriptive,
the Agreement is a
      key financial arrangement that will materially impact your liquidity and
should be
      featured as a principal topic in the prospectus. Because the arrangement
could be
      considered a windfall for the pre-IPO owners, your disclosure should
adequately and
      prominently address the fact that the agreement confers significant
economic benefits to
      the counterparties to the Agreement and redirects cash flows to them at
the expense of
      public shareholders.

        You may contact Mindy Hooker at (202) 551-3732 or John Cash, Accounting
Branch
Chief, at (202) 551-3768 if you have questions regarding comments on the
financial statements
and related matters. Please contact Sherry Haywood at (202) 551-3345 or Geoff
Kruczek at
(202) 551-3641 with any other questions.



                                                           Sincerely,
FirstName LastNameFrancis Fuselier
                                                           Division of
Corporation Finance
Comapany NameFluence Energy, Inc.
                                                           Office of
Manufacturing
July 21, 2021 Page 2
cc:       Alison Haggerty
FirstName LastName