<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2023 Workiva-->
<!--r:ffc3cba5-1c77-4e2e-b027-31a1cb5b28e3,g:51053ec2-073c-4335-83e8-f9b86b189235-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://fluenceenergy.com/role/CONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="flnc-20230930.xsd#CONSOLIDATEDBALANCESHEETS"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/CONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_a4fdcec1-7586-4871-971e-b1fa592fa43f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_4bb1599e-7268-4c49-8fdf-16d526f56402" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_a4fdcec1-7586-4871-971e-b1fa592fa43f" xlink:to="loc_us-gaap_AccountsPayableCurrent_4bb1599e-7268-4c49-8fdf-16d526f56402" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_a8b25ef9-f56d-40d6-a24c-f463d5193dfb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_a4fdcec1-7586-4871-971e-b1fa592fa43f" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_a8b25ef9-f56d-40d6-a24c-f463d5193dfb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_5c7d0f38-2292-4cac-89dd-97ae3c1afef1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_a4fdcec1-7586-4871-971e-b1fa592fa43f" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_5c7d0f38-2292-4cac-89dd-97ae3c1afef1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_5255fd38-2173-41fa-b09b-581735b58ed4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_a4fdcec1-7586-4871-971e-b1fa592fa43f" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_5255fd38-2173-41fa-b09b-581735b58ed4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxesPayableCurrent_7ed72ebf-4b3c-4ee6-bc55-3b5377863b51" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TaxesPayableCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_a4fdcec1-7586-4871-971e-b1fa592fa43f" xlink:to="loc_us-gaap_TaxesPayableCurrent_7ed72ebf-4b3c-4ee6-bc55-3b5377863b51" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_d49373d0-e6f4-4d23-a1f6-01693bddae37" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_a4fdcec1-7586-4871-971e-b1fa592fa43f" xlink:to="loc_us-gaap_LongTermDebtCurrent_d49373d0-e6f4-4d23-a1f6-01693bddae37" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_DueToRelatedPartiesAndContractWithCustomerAffiliatedEntitiesLiabilityCurrent_b6590b98-d5d2-44e6-be55-cfd840fb7fb3" xlink:href="flnc-20230930.xsd#flnc_DueToRelatedPartiesAndContractWithCustomerAffiliatedEntitiesLiabilityCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_a4fdcec1-7586-4871-971e-b1fa592fa43f" xlink:to="loc_flnc_DueToRelatedPartiesAndContractWithCustomerAffiliatedEntitiesLiabilityCurrent_b6590b98-d5d2-44e6-be55-cfd840fb7fb3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_43cf13d7-1d93-4a42-b7b6-d1049bc53f83" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_a4fdcec1-7586-4871-971e-b1fa592fa43f" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_43cf13d7-1d93-4a42-b7b6-d1049bc53f83" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrent_90f2cef1-8593-49f1-84be-4827db7e6bbb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_cf5ce999-6490-4df4-a0cd-c1112b00eb18" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_90f2cef1-8593-49f1-84be-4827db7e6bbb" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_cf5ce999-6490-4df4-a0cd-c1112b00eb18" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_275b4aa2-b24b-4860-b8d9-bf6e3d5c28a8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_90f2cef1-8593-49f1-84be-4827db7e6bbb" xlink:to="loc_us-gaap_Goodwill_275b4aa2-b24b-4860-b8d9-bf6e3d5c28a8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_fe1cf752-b3ed-4aff-9bb3-889aec297972" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_90f2cef1-8593-49f1-84be-4827db7e6bbb" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_fe1cf752-b3ed-4aff-9bb3-889aec297972" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_AccountsReceivableFromSecuritizationNoncurrent_f5df0022-7ecf-418f-825f-a6ffe26cd147" xlink:href="flnc-20230930.xsd#flnc_AccountsReceivableFromSecuritizationNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_90f2cef1-8593-49f1-84be-4827db7e6bbb" xlink:to="loc_flnc_AccountsReceivableFromSecuritizationNoncurrent_f5df0022-7ecf-418f-825f-a6ffe26cd147" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_00ae1de6-6fc9-4d21-9545-9f2a59257d0a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_90f2cef1-8593-49f1-84be-4827db7e6bbb" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_00ae1de6-6fc9-4d21-9545-9f2a59257d0a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_92a36cdf-16cd-4036-9022-e55ba27afa70" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_90f2cef1-8593-49f1-84be-4827db7e6bbb" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_92a36cdf-16cd-4036-9022-e55ba27afa70" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_280e7721-453b-406a-9c8e-88edfddd50f4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_1b7c1f92-f117-4056-bd9d-432193f538fa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortTermInvestments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_280e7721-453b-406a-9c8e-88edfddd50f4" xlink:to="loc_us-gaap_ShortTermInvestments_1b7c1f92-f117-4056-bd9d-432193f538fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_e11fdf40-23a4-4437-b9b8-6f982c2da738" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_280e7721-453b-406a-9c8e-88edfddd50f4" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_e11fdf40-23a4-4437-b9b8-6f982c2da738" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_64421550-4b42-46bd-8ae3-0fdcf10f669f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_280e7721-453b-406a-9c8e-88edfddd50f4" xlink:to="loc_us-gaap_InventoryNet_64421550-4b42-46bd-8ae3-0fdcf10f669f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_d08f02c1-a443-47d4-b6e5-2f752d7fa04c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_280e7721-453b-406a-9c8e-88edfddd50f4" xlink:to="loc_us-gaap_OtherAssetsCurrent_d08f02c1-a443-47d4-b6e5-2f752d7fa04c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_4d400d63-66b1-487e-89e8-c9106bb22f57" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_280e7721-453b-406a-9c8e-88edfddd50f4" xlink:to="loc_us-gaap_RestrictedCashCurrent_4d400d63-66b1-487e-89e8-c9106bb22f57" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_30ca2eca-9d22-4170-99ff-b69582a4ea9c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_280e7721-453b-406a-9c8e-88edfddd50f4" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_30ca2eca-9d22-4170-99ff-b69582a4ea9c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherReceivablesNetCurrent_92f521a2-0f4a-4758-a7fc-6965fdd97bc4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherReceivablesNetCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_280e7721-453b-406a-9c8e-88edfddd50f4" xlink:to="loc_us-gaap_OtherReceivablesNetCurrent_92f521a2-0f4a-4758-a7fc-6965fdd97bc4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableFromSecuritization_999c1e4e-9291-4989-aa16-13f5f2d9ebdb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsReceivableFromSecuritization"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_280e7721-453b-406a-9c8e-88edfddd50f4" xlink:to="loc_us-gaap_AccountsReceivableFromSecuritization_999c1e4e-9291-4989-aa16-13f5f2d9ebdb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdvancesOnInventoryPurchases_386b9cdf-a60b-4279-8529-4b3644f3ec8b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdvancesOnInventoryPurchases"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_280e7721-453b-406a-9c8e-88edfddd50f4" xlink:to="loc_us-gaap_AdvancesOnInventoryPurchases_386b9cdf-a60b-4279-8529-4b3644f3ec8b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_057ffe6a-e344-4801-b7fd-b48dd363506a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_280e7721-453b-406a-9c8e-88edfddd50f4" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetCurrent_057ffe6a-e344-4801-b7fd-b48dd363506a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_efe163be-a5bb-48c8-83a0-12ae2ebc013d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrent_d3ba99c2-80e6-4b9d-a9be-3c46a329487e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_efe163be-a5bb-48c8-83a0-12ae2ebc013d" xlink:to="loc_us-gaap_AssetsNoncurrent_d3ba99c2-80e6-4b9d-a9be-3c46a329487e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_813b0756-9ea2-4522-8849-1cedb7d11ccd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_efe163be-a5bb-48c8-83a0-12ae2ebc013d" xlink:to="loc_us-gaap_AssetsCurrent_813b0756-9ea2-4522-8849-1cedb7d11ccd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_eeddc996-6841-4538-b7ca-d9f2888e5160" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_e5470121-ec30-454d-922f-5a73e66431a4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_eeddc996-6841-4538-b7ca-d9f2888e5160" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_e5470121-ec30-454d-922f-5a73e66431a4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_b74d9437-c094-4295-9697-381588386bfc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_eeddc996-6841-4538-b7ca-d9f2888e5160" xlink:to="loc_us-gaap_Liabilities_b74d9437-c094-4295-9697-381588386bfc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_a33b3ecc-ba0c-4f2c-8791-d63f93ecfe63" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_eeddc996-6841-4538-b7ca-d9f2888e5160" xlink:to="loc_us-gaap_CommitmentsAndContingencies_a33b3ecc-ba0c-4f2c-8791-d63f93ecfe63" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_f7cc238d-e23e-4f51-b67c-32d5368ad047" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_78f51f2a-163a-4d05-8ccb-833715832db0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_f7cc238d-e23e-4f51-b67c-32d5368ad047" xlink:to="loc_us-gaap_LiabilitiesNoncurrent_78f51f2a-163a-4d05-8ccb-833715832db0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_68e67802-1010-4667-a5e0-6e3d0436728e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_f7cc238d-e23e-4f51-b67c-32d5368ad047" xlink:to="loc_us-gaap_LiabilitiesCurrent_68e67802-1010-4667-a5e0-6e3d0436728e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_7906840a-814a-4a79-aade-c2fcb56fd0c6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_a4acd89d-2b26-47c2-bba7-85422ec7ac1e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_7906840a-814a-4a79-aade-c2fcb56fd0c6" xlink:to="loc_us-gaap_StockholdersEquity_a4acd89d-2b26-47c2-bba7-85422ec7ac1e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_1fcea5c5-2e88-4296-aae3-d9e23b8cd4f9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_7906840a-814a-4a79-aade-c2fcb56fd0c6" xlink:to="loc_us-gaap_MinorityInterest_1fcea5c5-2e88-4296-aae3-d9e23b8cd4f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_9a73c733-6742-4e8d-911c-2be4ba367bc1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_33a8710b-2d78-4114-9f39-bc172ba19722" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_9a73c733-6742-4e8d-911c-2be4ba367bc1" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_33a8710b-2d78-4114-9f39-bc172ba19722" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_6de1241b-bc7d-458c-9da7-08de78407535" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_9a73c733-6742-4e8d-911c-2be4ba367bc1" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_6de1241b-bc7d-458c-9da7-08de78407535" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_03b1784f-ede5-49e5-8730-7f0343abc0cd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_9a73c733-6742-4e8d-911c-2be4ba367bc1" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_03b1784f-ede5-49e5-8730-7f0343abc0cd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_d6ff4b5f-5c7d-4f60-96e1-1bd48746a326" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_d8c95a8f-de1c-412f-b9de-37c897d672cd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_d6ff4b5f-5c7d-4f60-96e1-1bd48746a326" xlink:to="loc_us-gaap_PreferredStockValue_d8c95a8f-de1c-412f-b9de-37c897d672cd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_9e1ef8cf-ed3a-4c93-8b0d-c3b2c4899db5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_d6ff4b5f-5c7d-4f60-96e1-1bd48746a326" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_9e1ef8cf-ed3a-4c93-8b0d-c3b2c4899db5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_d330719a-71bb-4a21-bca5-8a0ad22b9aef" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_d6ff4b5f-5c7d-4f60-96e1-1bd48746a326" xlink:to="loc_us-gaap_CommonStockValue_d330719a-71bb-4a21-bca5-8a0ad22b9aef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_363c847f-21d5-42bd-b4f6-353e5e4fbce6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_d6ff4b5f-5c7d-4f60-96e1-1bd48746a326" xlink:to="loc_us-gaap_AdditionalPaidInCapital_363c847f-21d5-42bd-b4f6-353e5e4fbce6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValue_47b03327-d314-4bce-bfe4-d243ba63549f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockValue"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_d6ff4b5f-5c7d-4f60-96e1-1bd48746a326" xlink:to="loc_us-gaap_TreasuryStockValue_47b03327-d314-4bce-bfe4-d243ba63549f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_f0089263-72e7-4fb5-9c92-764084684f5c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_d6ff4b5f-5c7d-4f60-96e1-1bd48746a326" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_f0089263-72e7-4fb5-9c92-764084684f5c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSS" xlink:type="simple" xlink:href="flnc-20230930.xsd#CONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSS"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_037d7428-a96e-46f9-90d5-eaa8d27e7d7c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_00049cc7-f362-491e-8afa-c676598125fe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_037d7428-a96e-46f9-90d5-eaa8d27e7d7c" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_00049cc7-f362-491e-8afa-c676598125fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_65f3643d-4c40-4e07-9e2a-33991c204c36" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GrossProfit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_037d7428-a96e-46f9-90d5-eaa8d27e7d7c" xlink:to="loc_us-gaap_GrossProfit_65f3643d-4c40-4e07-9e2a-33991c204c36" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_27cd4436-a278-49b5-98fd-cde626a37584" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_037d7428-a96e-46f9-90d5-eaa8d27e7d7c" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_27cd4436-a278-49b5-98fd-cde626a37584" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_3acc5f9d-14a5-4c89-b021-26a71ede29ac" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_037d7428-a96e-46f9-90d5-eaa8d27e7d7c" xlink:to="loc_us-gaap_DepreciationAndAmortization_3acc5f9d-14a5-4c89-b021-26a71ede29ac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_aa70261b-9e11-4ccf-aff7-2fc54c9c68c3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_037d7428-a96e-46f9-90d5-eaa8d27e7d7c" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_aa70261b-9e11-4ccf-aff7-2fc54c9c68c3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpense_42684cdc-6b4a-48c3-8690-d45114a490ff" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SellingAndMarketingExpense"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_037d7428-a96e-46f9-90d5-eaa8d27e7d7c" xlink:to="loc_us-gaap_SellingAndMarketingExpense_42684cdc-6b4a-48c3-8690-d45114a490ff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_9b794430-d37f-479b-bff6-104a5ac0dad2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_037d7428-a96e-46f9-90d5-eaa8d27e7d7c" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_9b794430-d37f-479b-bff6-104a5ac0dad2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_d4c32eca-942a-4a6e-8955-3cf6ad54625a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_7720556e-fc1a-4ab9-85ec-bfc49c7c8aa2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_d4c32eca-942a-4a6e-8955-3cf6ad54625a" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_7720556e-fc1a-4ab9-85ec-bfc49c7c8aa2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_6ec46e97-341c-43e3-b2b7-8ba9a0d1cd7b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_d4c32eca-942a-4a6e-8955-3cf6ad54625a" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_6ec46e97-341c-43e3-b2b7-8ba9a0d1cd7b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_e9b97cf8-c151-4fe0-b411-462e8a6d14a6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_d53b62cd-0a35-42eb-a2ff-9fcfd807ff73" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_e9b97cf8-c151-4fe0-b411-462e8a6d14a6" xlink:to="loc_us-gaap_ProfitLoss_d53b62cd-0a35-42eb-a2ff-9fcfd807ff73" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_316093ae-75ba-4254-ae0b-f2b4aa7a9713" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_e9b97cf8-c151-4fe0-b411-462e8a6d14a6" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_316093ae-75ba-4254-ae0b-f2b4aa7a9713" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_2ac7c263-a948-43ee-b5b8-a88604014533" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_9821bb3e-f7e5-4dd9-b5c1-a1405af51225" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_2ac7c263-a948-43ee-b5b8-a88604014533" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_9821bb3e-f7e5-4dd9-b5c1-a1405af51225" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_983a68e1-825a-498c-a754-cfa354ca934d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_2ac7c263-a948-43ee-b5b8-a88604014533" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_983a68e1-825a-498c-a754-cfa354ca934d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_13cdc035-0add-4d45-9f09-88004fc4f8eb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_5bf8ecbc-488e-45ee-93d8-2df9dfb342a8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_13cdc035-0add-4d45-9f09-88004fc4f8eb" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_5bf8ecbc-488e-45ee-93d8-2df9dfb342a8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax_fa30f62a-1500-4ed5-ab48-784785034e18" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_13cdc035-0add-4d45-9f09-88004fc4f8eb" xlink:to="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax_fa30f62a-1500-4ed5-ab48-784785034e18" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_128ff87f-8cc9-4f09-ae69-2977060d235a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_0ca88481-f90b-4de3-bfab-941cc37c0f2c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_128ff87f-8cc9-4f09-ae69-2977060d235a" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_0ca88481-f90b-4de3-bfab-941cc37c0f2c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_b9b016eb-1610-4967-9cab-58d7c1edb9d3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_128ff87f-8cc9-4f09-ae69-2977060d235a" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_b9b016eb-1610-4967-9cab-58d7c1edb9d3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_cdf9d6b8-911a-4b97-9e87-0995d0fe03b0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_6a6545aa-245a-45c1-b5ce-c1f396dd25a8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_cdf9d6b8-911a-4b97-9e87-0995d0fe03b0" xlink:to="loc_us-gaap_ProfitLoss_6a6545aa-245a-45c1-b5ce-c1f396dd25a8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_0849d882-343e-42f4-8e34-f48948279369" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_cdf9d6b8-911a-4b97-9e87-0995d0fe03b0" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_0849d882-343e-42f4-8e34-f48948279369" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="flnc-20230930.xsd#CONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_00c7a433-ce5d-4690-9b31-c910dec66d03" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_00c7a433-ce5d-4690-9b31-c910dec66d03" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_103e578a-329f-41ab-a7bc-47b623b74ebf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_103e578a-329f-41ab-a7bc-47b623b74ebf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnContractTermination_03d68440-aadf-4be2-9e28-157f1f3fafbc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainLossOnContractTermination"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_GainLossOnContractTermination_03d68440-aadf-4be2-9e28-157f1f3fafbc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_3e55d57b-9390-4087-9f00-886d06f88974" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_3e55d57b-9390-4087-9f00-886d06f88974" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerAsset_c46201c9-57e9-4f57-80ac-9ab6b90eed2e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerAsset"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerAsset_c46201c9-57e9-4f57-80ac-9ab6b90eed2e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_IncreaseDecreaseInPayablesAndDeferredRevenueWithRelatedParties_8ff85013-456d-4d70-b4f2-5ec160c02d73" xlink:href="flnc-20230930.xsd#flnc_IncreaseDecreaseInPayablesAndDeferredRevenueWithRelatedParties"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_flnc_IncreaseDecreaseInPayablesAndDeferredRevenueWithRelatedParties_8ff85013-456d-4d70-b4f2-5ec160c02d73" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_0eaa9977-5caf-437d-adad-79591f4ba676" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_0eaa9977-5caf-437d-adad-79591f4ba676" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_88c687a4-b443-44e6-9923-d76d322e0ffc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_88c687a4-b443-44e6-9923-d76d322e0ffc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_5d4371cb-5a04-4198-bc5b-0939099df874" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_ShareBasedCompensation_5d4371cb-5a04-4198-bc5b-0939099df874" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_ceb11557-9ed7-4910-b8dd-06c423fcc718" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_ceb11557-9ed7-4910-b8dd-06c423fcc718" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWriteDown_6b78f8d2-4366-4d4a-97d6-d512c391cefd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InventoryWriteDown"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_InventoryWriteDown_6b78f8d2-4366-4d4a-97d6-d512c391cefd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_db5f802a-a7d5-4e4c-8858-8d29e6a2d9c5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_db5f802a-a7d5-4e4c-8858-8d29e6a2d9c5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDueFromRelatedPartiesCurrent_22651cec-3757-4f16-864f-05fcaab87407" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInDueFromRelatedPartiesCurrent"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_IncreaseDecreaseInDueFromRelatedPartiesCurrent_22651cec-3757-4f16-864f-05fcaab87407" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_IncreaseDecreaseToAdvancesOnInventoryPurchases_79e3a5b1-029b-4136-b9ff-51281b1dd19d" xlink:href="flnc-20230930.xsd#flnc_IncreaseDecreaseToAdvancesOnInventoryPurchases"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_flnc_IncreaseDecreaseToAdvancesOnInventoryPurchases_79e3a5b1-029b-4136-b9ff-51281b1dd19d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_7db26981-c99b-4d23-a43d-fdd42c1ed640" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_7db26981-c99b-4d23-a43d-fdd42c1ed640" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_c0868fe0-22e1-42e7-a0cf-e74e733f3709" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="16" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_c0868fe0-22e1-42e7-a0cf-e74e733f3709" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_ab0cb4f8-de81-4519-b03d-71008494782d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentAssets"/>
    <link:calculationArc order="17" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_ab0cb4f8-de81-4519-b03d-71008494782d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_87cdcce9-fa9e-48da-b3b0-748d378742ad" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="18" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_87cdcce9-fa9e-48da-b3b0-748d378742ad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_01522db1-fe25-40b6-b705-c2f91824fefb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="19" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_01522db1-fe25-40b6-b705-c2f91824fefb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInsuranceSettlementsReceivable_6a9a7a41-1fea-41b4-b497-5c4370b47b03" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInInsuranceSettlementsReceivable"/>
    <link:calculationArc order="20" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_IncreaseDecreaseInInsuranceSettlementsReceivable_6a9a7a41-1fea-41b4-b497-5c4370b47b03" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_c94d394f-5296-48a3-ad4f-828e53fdc8fb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="21" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_ProfitLoss_c94d394f-5296-48a3-ad4f-828e53fdc8fb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_552bd62d-0061-4a5c-ab4e-4d8c5ba93c62" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOtherCurrentLiabilities"/>
    <link:calculationArc order="22" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9ee5b55c-969b-4c32-aefb-6ab8da482dc9" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_552bd62d-0061-4a5c-ab4e-4d8c5ba93c62" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_6924e9a3-9187-44e0-9618-06d206843390" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireEquitySecuritiesFvNi_d2f77801-1dcd-43bc-ab22-112ea02c1f76" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireEquitySecuritiesFvNi"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_6924e9a3-9187-44e0-9618-06d206843390" xlink:to="loc_us-gaap_PaymentsToAcquireEquitySecuritiesFvNi_d2f77801-1dcd-43bc-ab22-112ea02c1f76" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_f2c94660-d2e4-4ac6-bd65-cb231d0c3e0f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_6924e9a3-9187-44e0-9618-06d206843390" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_f2c94660-d2e4-4ac6-bd65-cb231d0c3e0f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireShortTermInvestments_e13cb5da-7de5-488a-b83a-5eb0d3c1d973" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireShortTermInvestments"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_6924e9a3-9187-44e0-9618-06d206843390" xlink:to="loc_us-gaap_PaymentsToAcquireShortTermInvestments_e13cb5da-7de5-488a-b83a-5eb0d3c1d973" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_79c926ea-3fae-4e83-9460-c66f44bc9d96" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_6924e9a3-9187-44e0-9618-06d206843390" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_79c926ea-3fae-4e83-9460-c66f44bc9d96" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireInterestInJointVenture_3e0f0551-8147-41bd-9cbf-80910f9fde0b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireInterestInJointVenture"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_6924e9a3-9187-44e0-9618-06d206843390" xlink:to="loc_us-gaap_PaymentsToAcquireInterestInJointVenture_3e0f0551-8147-41bd-9cbf-80910f9fde0b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments_26783221-0e8d-4d5e-9d1d-6456e22d8f9c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_6924e9a3-9187-44e0-9618-06d206843390" xlink:to="loc_us-gaap_ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments_26783221-0e8d-4d5e-9d1d-6456e22d8f9c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForSoftware_07eff6b8-b019-4c4b-9de6-3f50ccaaad69" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsForSoftware"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_6924e9a3-9187-44e0-9618-06d206843390" xlink:to="loc_us-gaap_PaymentsForSoftware_07eff6b8-b019-4c4b-9de6-3f50ccaaad69" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_d38d9961-ea8c-4fe3-9644-d72f9dfb5258" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_300bf855-5714-4192-b1a8-83df8dcd266f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_d38d9961-ea8c-4fe3-9644-d72f9dfb5258" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_300bf855-5714-4192-b1a8-83df8dcd266f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6b2c671d-0e72-4099-8bc5-92e572e5b5e6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_d38d9961-ea8c-4fe3-9644-d72f9dfb5258" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6b2c671d-0e72-4099-8bc5-92e572e5b5e6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_bb04e1ae-b2f0-4118-b7f5-54157c5d203b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_d38d9961-ea8c-4fe3-9644-d72f9dfb5258" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_bb04e1ae-b2f0-4118-b7f5-54157c5d203b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7b560b56-9856-49f4-82fa-2d7191844df5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_d38d9961-ea8c-4fe3-9644-d72f9dfb5258" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7b560b56-9856-49f4-82fa-2d7191844df5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfStockIssuanceCosts_ecf49871-7b77-4945-b9e6-34ed50425856" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsOfStockIssuanceCosts"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:to="loc_us-gaap_PaymentsOfStockIssuanceCosts_ecf49871-7b77-4945-b9e6-34ed50425856" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonLimitedPartnersUnits_fb47a841-96c2-4731-8f75-c4bf3dd1b75c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromIssuanceOfCommonLimitedPartnersUnits"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonLimitedPartnersUnits_fb47a841-96c2-4731-8f75-c4bf3dd1b75c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromAccountsReceivableSecuritization_3eb91d32-9155-4c1d-a4ec-e346e4e71382" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromAccountsReceivableSecuritization"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:to="loc_us-gaap_ProceedsFromAccountsReceivableSecuritization_3eb91d32-9155-4c1d-a4ec-e346e4e71382" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromContributedCapital_0e35a67f-f1ee-48b2-8344-11cc081bb3b0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromContributedCapital"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:to="loc_us-gaap_ProceedsFromContributedCapital_0e35a67f-f1ee-48b2-8344-11cc081bb3b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_1a2a86ce-ef79-4782-ab3e-620f0b4e3037" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_1a2a86ce-ef79-4782-ab3e-620f0b4e3037" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLinesOfCredit_ed4c440b-532a-496b-be33-96416a02f543" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RepaymentsOfLinesOfCredit"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:to="loc_us-gaap_RepaymentsOfLinesOfCredit_ed4c440b-532a-496b-be33-96416a02f543" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_f2248102-dac5-461b-a74d-c8f3a93daf8e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_f2248102-dac5-461b-a74d-c8f3a93daf8e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_dbd22b23-5be3-4944-b1a5-9f0dca253e0b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_dbd22b23-5be3-4944-b1a5-9f0dca253e0b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_PaymentOfTransactionCostRelatedToIssuanceOfMembershipUnits_21eb0e00-46fb-49d1-afb5-bc786387790c" xlink:href="flnc-20230930.xsd#flnc_PaymentOfTransactionCostRelatedToIssuanceOfMembershipUnits"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:to="loc_flnc_PaymentOfTransactionCostRelatedToIssuanceOfMembershipUnits_21eb0e00-46fb-49d1-afb5-bc786387790c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_PaymentsOfDeferredEquityIssuanceCost_b18d61c8-0c57-4f6c-a2df-99ef866ce984" xlink:href="flnc-20230930.xsd#flnc_PaymentsOfDeferredEquityIssuanceCost"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:to="loc_flnc_PaymentsOfDeferredEquityIssuanceCost_b18d61c8-0c57-4f6c-a2df-99ef866ce984" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_1758b668-5c44-4b7c-9a8d-3d250a3825d7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromLinesOfCredit"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_1758b668-5c44-4b7c-9a8d-3d250a3825d7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRelatedPartyDebt_7049d659-c95d-4c44-8149-c5b644d9dc4e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromRelatedPartyDebt"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:to="loc_us-gaap_ProceedsFromRelatedPartyDebt_7049d659-c95d-4c44-8149-c5b644d9dc4e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfRelatedPartyDebt_fbb5f014-ae15-40f4-b46f-dc52c247638c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RepaymentsOfRelatedPartyDebt"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:to="loc_us-gaap_RepaymentsOfRelatedPartyDebt_fbb5f014-ae15-40f4-b46f-dc52c247638c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_db5c89d2-f71d-48d6-a6e5-0fd0cf8214e0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_db5c89d2-f71d-48d6-a6e5-0fd0cf8214e0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceInitialPublicOffering_1288a3ce-d79f-47b9-a1da-04ec6fc537ce" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromIssuanceInitialPublicOffering"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3205146a-2796-4443-b045-8f8189fd63b3" xlink:to="loc_us-gaap_ProceedsFromIssuanceInitialPublicOffering_1288a3ce-d79f-47b9-a1da-04ec6fc537ce" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/SummaryofSignificantAccountingPoliciesandEstimatesCashCashEquivalentsandRestrictedCashDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#SummaryofSignificantAccountingPoliciesandEstimatesCashCashEquivalentsandRestrictedCashDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/SummaryofSignificantAccountingPoliciesandEstimatesCashCashEquivalentsandRestrictedCashDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_03439c42-2a5f-4dc0-9e9a-af5c9b8ccafc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_edab24d7-1a3b-4c0a-be92-2724c1f3db40" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_03439c42-2a5f-4dc0-9e9a-af5c9b8ccafc" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_edab24d7-1a3b-4c0a-be92-2724c1f3db40" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_6edbf987-f86e-4c7d-88da-00ee196e251e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_03439c42-2a5f-4dc0-9e9a-af5c9b8ccafc" xlink:to="loc_us-gaap_RestrictedCashCurrent_6edbf987-f86e-4c7d-88da-00ee196e251e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashNoncurrent_cdf07500-383c-4272-be96-029187210f2a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_03439c42-2a5f-4dc0-9e9a-af5c9b8ccafc" xlink:to="loc_us-gaap_RestrictedCashNoncurrent_cdf07500-383c-4272-be96-029187210f2a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/SummaryofSignificantAccountingPoliciesandEstimatesCashRestrictionsDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#SummaryofSignificantAccountingPoliciesandEstimatesCashRestrictionsDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/SummaryofSignificantAccountingPoliciesandEstimatesCashRestrictionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCash_442e9522-73c2-40c7-a64f-956a79381f8b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCash"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_2970c8c2-5f9f-47e1-b7d0-238f57c37456" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RestrictedCash_442e9522-73c2-40c7-a64f-956a79381f8b" xlink:to="loc_us-gaap_RestrictedCashCurrent_2970c8c2-5f9f-47e1-b7d0-238f57c37456" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashNoncurrent_73792bb0-bf48-4384-af03-68eca67a194d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RestrictedCash_442e9522-73c2-40c7-a64f-956a79381f8b" xlink:to="loc_us-gaap_RestrictedCashNoncurrent_73792bb0-bf48-4384-af03-68eca67a194d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/BusinessCombinationAssetsAcquiredandLiabilitiesAssumedDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#BusinessCombinationAssetsAcquiredandLiabilitiesAssumedDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/BusinessCombinationAssetsAcquiredandLiabilitiesAssumedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_7f2e6fda-3526-4501-8580-9440c9f76f04" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_f59dd349-b59e-4d1d-8305-40764ae571f4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_7f2e6fda-3526-4501-8580-9440c9f76f04" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_f59dd349-b59e-4d1d-8305-40764ae571f4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_98fd8469-9bf8-4970-ad44-550bbe199ed0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_7f2e6fda-3526-4501-8580-9440c9f76f04" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_98fd8469-9bf8-4970-ad44-550bbe199ed0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_dec68932-de8a-4b18-b68a-11101b39a431" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_7f2e6fda-3526-4501-8580-9440c9f76f04" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_dec68932-de8a-4b18-b68a-11101b39a431" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue_7d71ad37-791c-43b3-a6ca-57969290d0d0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_7f2e6fda-3526-4501-8580-9440c9f76f04" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue_7d71ad37-791c-43b3-a6ca-57969290d0d0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_91e3abff-d878-49e4-8ea9-16893f173d1a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_7f2e6fda-3526-4501-8580-9440c9f76f04" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_91e3abff-d878-49e4-8ea9-16893f173d1a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_3a67c908-5ad5-4ed5-9388-f54510632b1e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_7f2e6fda-3526-4501-8580-9440c9f76f04" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_3a67c908-5ad5-4ed5-9388-f54510632b1e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/InventoryNetDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#InventoryNetDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/InventoryNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_88b0dad8-50bb-48c4-b81e-79a5aa26d9f7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryGross_2f3aee88-19d8-49ee-9486-7adfae252ed9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InventoryGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_88b0dad8-50bb-48c4-b81e-79a5aa26d9f7" xlink:to="loc_us-gaap_InventoryGross_2f3aee88-19d8-49ee-9486-7adfae252ed9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryValuationReserves_e2232bd2-d007-4b20-9fcb-6795242aa9f5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InventoryValuationReserves"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_88b0dad8-50bb-48c4-b81e-79a5aa26d9f7" xlink:to="loc_us-gaap_InventoryValuationReserves_e2232bd2-d007-4b20-9fcb-6795242aa9f5" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/OtherCurrentAssetsDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#OtherCurrentAssetsDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/OtherCurrentAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_20cc2937-3f0f-4a2d-ad5e-f94d9a222cdd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesReceivable_feeba0f2-b802-49e3-9b3b-a876038a722c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxesReceivable"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_20cc2937-3f0f-4a2d-ad5e-f94d9a222cdd" xlink:to="loc_us-gaap_IncomeTaxesReceivable_feeba0f2-b802-49e3-9b3b-a876038a722c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetsCurrent_43e31b8d-000a-49c2-bb59-f12ad79b1ffc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeAssetsCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_20cc2937-3f0f-4a2d-ad5e-f94d9a222cdd" xlink:to="loc_us-gaap_DerivativeAssetsCurrent_43e31b8d-000a-49c2-bb59-f12ad79b1ffc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_AdvancePaymentsCurrent_20f6c556-e590-427b-99c3-413da5634202" xlink:href="flnc-20230930.xsd#flnc_AdvancePaymentsCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_20cc2937-3f0f-4a2d-ad5e-f94d9a222cdd" xlink:to="loc_flnc_AdvancePaymentsCurrent_20f6c556-e590-427b-99c3-413da5634202" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsMiscellaneousCurrent_ec70f963-142b-4f3a-9be0-4b52cb80d5ff" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsMiscellaneousCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_20cc2937-3f0f-4a2d-ad5e-f94d9a222cdd" xlink:to="loc_us-gaap_OtherAssetsMiscellaneousCurrent_ec70f963-142b-4f3a-9be0-4b52cb80d5ff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidInsurance_5ee9e823-d68d-4728-8d50-c3c204ea7b89" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrepaidInsurance"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_20cc2937-3f0f-4a2d-ad5e-f94d9a222cdd" xlink:to="loc_us-gaap_PrepaidInsurance_5ee9e823-d68d-4728-8d50-c3c204ea7b89" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_0c25d29b-2da0-4a92-b330-053ff44508be" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_20cc2937-3f0f-4a2d-ad5e-f94d9a222cdd" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_0c25d29b-2da0-4a92-b330-053ff44508be" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/PropertyandEquipmentNetAmortizedCostsDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#PropertyandEquipmentNetAmortizedCostsDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/PropertyandEquipmentNetAmortizedCostsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_f21d0eae-f0de-4e3d-b1ae-a1fc8db8c847" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_490be434-c0ec-4341-ac7f-ed91aae4b564" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_f21d0eae-f0de-4e3d-b1ae-a1fc8db8c847" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_490be434-c0ec-4341-ac7f-ed91aae4b564" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_a7cabd0d-8ba5-4ec5-aa7b-6beb0ae4f88b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_f21d0eae-f0de-4e3d-b1ae-a1fc8db8c847" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_a7cabd0d-8ba5-4ec5-aa7b-6beb0ae4f88b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/LeasesAssetsandLiabilitiesOperatingDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#LeasesAssetsandLiabilitiesOperatingDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/LeasesAssetsandLiabilitiesOperatingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_06218cce-de5e-4f0c-9f31-55ab1f2b214d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_f8e4a82b-7975-43d7-ba81-9d45608fcae4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeaseLiability_06218cce-de5e-4f0c-9f31-55ab1f2b214d" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_f8e4a82b-7975-43d7-ba81-9d45608fcae4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_0ad30b19-83f0-4683-97d7-2c395ca10f1e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeaseLiability_06218cce-de5e-4f0c-9f31-55ab1f2b214d" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_0ad30b19-83f0-4683-97d7-2c395ca10f1e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/LeasesLeaseCostDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#LeasesLeaseCostDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/LeasesLeaseCostDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_fa0d8584-28d7-4154-ac0b-8e0f2afc4f43" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeaseCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_316288ae-165c-4943-b105-9ebe033f5fa0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_fa0d8584-28d7-4154-ac0b-8e0f2afc4f43" xlink:to="loc_us-gaap_OperatingLeaseCost_316288ae-165c-4943-b105-9ebe033f5fa0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_ShortTermAndVariableLeaseCost_a6604ee1-8b57-4a29-bcd6-beb71e32f02a" xlink:href="flnc-20230930.xsd#flnc_ShortTermAndVariableLeaseCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_fa0d8584-28d7-4154-ac0b-8e0f2afc4f43" xlink:to="loc_flnc_ShortTermAndVariableLeaseCost_a6604ee1-8b57-4a29-bcd6-beb71e32f02a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubleaseIncome_238b04ee-358b-4e0a-8265-a8b040dac0d0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubleaseIncome"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_fa0d8584-28d7-4154-ac0b-8e0f2afc4f43" xlink:to="loc_us-gaap_SubleaseIncome_238b04ee-358b-4e0a-8265-a8b040dac0d0" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/LeasesMaturityDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#LeasesMaturityDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/LeasesMaturityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_0036673f-2a72-4066-86a0-5cf861815843" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_2d256c23-1955-4662-8717-fcdd3a0fbec9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_0036673f-2a72-4066-86a0-5cf861815843" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_2d256c23-1955-4662-8717-fcdd3a0fbec9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_f94107a3-5978-4c8e-ac60-1ae0f97396ad" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_0036673f-2a72-4066-86a0-5cf861815843" xlink:to="loc_us-gaap_OperatingLeaseLiability_f94107a3-5978-4c8e-ac60-1ae0f97396ad" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/LeasesMaturityDetails_1" xlink:type="simple" xlink:href="flnc-20230930.xsd#LeasesMaturityDetails_1"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/LeasesMaturityDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_63a4c29d-1ca3-4964-898b-e51f2bbebfc3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_910ffd3c-d7da-4514-bd9a-02b155e5e172" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_63a4c29d-1ca3-4964-898b-e51f2bbebfc3" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_910ffd3c-d7da-4514-bd9a-02b155e5e172" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_ffb346d9-7d47-42eb-bfbf-75ded8f45ff6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_63a4c29d-1ca3-4964-898b-e51f2bbebfc3" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_ffb346d9-7d47-42eb-bfbf-75ded8f45ff6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_0d33242d-e055-4557-b719-1fa3595e9fab" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_63a4c29d-1ca3-4964-898b-e51f2bbebfc3" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_0d33242d-e055-4557-b719-1fa3595e9fab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_c2d3fc34-5f06-4a11-9a32-6850b10602e2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_63a4c29d-1ca3-4964-898b-e51f2bbebfc3" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_c2d3fc34-5f06-4a11-9a32-6850b10602e2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_e8c4759c-ca17-4a45-ad63-8528d2f8632f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_63a4c29d-1ca3-4964-898b-e51f2bbebfc3" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_e8c4759c-ca17-4a45-ad63-8528d2f8632f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_b1ced631-c9a5-4bf6-b037-cbae5872188a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_63a4c29d-1ca3-4964-898b-e51f2bbebfc3" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_b1ced631-c9a5-4bf6-b037-cbae5872188a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/IntangibleAssetsNetScheduleofFiniteLivedIntangibleAssetsDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#IntangibleAssetsNetScheduleofFiniteLivedIntangibleAssetsDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/IntangibleAssetsNetScheduleofFiniteLivedIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_33a0ec38-3d9b-4105-a35c-dde47e80e8a0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_635640f9-be3c-4f2a-8f61-91fcd0f0b756" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_33a0ec38-3d9b-4105-a35c-dde47e80e8a0" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_635640f9-be3c-4f2a-8f61-91fcd0f0b756" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_2bc12542-4c7e-4a52-b212-9ec7a161f574" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_33a0ec38-3d9b-4105-a35c-dde47e80e8a0" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_2bc12542-4c7e-4a52-b212-9ec7a161f574" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/CurrentAccrualsandProvisionsDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#CurrentAccrualsandProvisionsDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/CurrentAccrualsandProvisionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_7044ff6a-69b7-436e-8add-6a305b417718" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_InventoryAccruals_5535d0ef-5ccf-4fae-ae77-ac689c4abee8" xlink:href="flnc-20230930.xsd#flnc_InventoryAccruals"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_7044ff6a-69b7-436e-8add-6a305b417718" xlink:to="loc_flnc_InventoryAccruals_5535d0ef-5ccf-4fae-ae77-ac689c4abee8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StandardProductWarrantyAccrual_9ce6bf39-2718-468a-835c-0810c9cfda6e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StandardProductWarrantyAccrual"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_7044ff6a-69b7-436e-8add-6a305b417718" xlink:to="loc_us-gaap_StandardProductWarrantyAccrual_9ce6bf39-2718-468a-835c-0810c9cfda6e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLossOnContracts_b4157e32-9e44-4a02-879b-28ab0373148a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProvisionForLossOnContracts"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_7044ff6a-69b7-436e-8add-6a305b417718" xlink:to="loc_us-gaap_ProvisionForLossOnContracts_b4157e32-9e44-4a02-879b-28ab0373148a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/IncomeTaxesComponentsofLossBeforeIncomeTaxDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#IncomeTaxesComponentsofLossBeforeIncomeTaxDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/IncomeTaxesComponentsofLossBeforeIncomeTaxDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_f69ca7e3-db34-47b3-b887-9776b3ad6880" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_64493737-82d3-4f22-8271-8b34c21e15ef" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_f69ca7e3-db34-47b3-b887-9776b3ad6880" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_64493737-82d3-4f22-8271-8b34c21e15ef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_e400c071-30a4-4aa6-86aa-25a8da62a6ee" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_f69ca7e3-db34-47b3-b887-9776b3ad6880" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_e400c071-30a4-4aa6-86aa-25a8da62a6ee" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/IncomeTaxesComponentsofIncomeTaxExpenseBenefitDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#IncomeTaxesComponentsofIncomeTaxExpenseBenefitDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/IncomeTaxesComponentsofIncomeTaxExpenseBenefitDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_2857dea9-18ee-464b-b92a-6f2f6ab30713" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_1fc577af-0337-4a4f-b1fa-6fe409cea3ea" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CurrentFederalTaxExpenseBenefit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_2857dea9-18ee-464b-b92a-6f2f6ab30713" xlink:to="loc_us-gaap_CurrentFederalTaxExpenseBenefit_1fc577af-0337-4a4f-b1fa-6fe409cea3ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_92ec6459-3ca4-4f5d-bf57-7fa8578d6869" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_2857dea9-18ee-464b-b92a-6f2f6ab30713" xlink:to="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_92ec6459-3ca4-4f5d-bf57-7fa8578d6869" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_WithholdingFederalIncomeTaxExpenseBenefit_9b6bcbe1-4082-4851-8725-52e6ba11247f" xlink:href="flnc-20230930.xsd#flnc_WithholdingFederalIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_2857dea9-18ee-464b-b92a-6f2f6ab30713" xlink:to="loc_flnc_WithholdingFederalIncomeTaxExpenseBenefit_9b6bcbe1-4082-4851-8725-52e6ba11247f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentForeignTaxExpenseBenefit_9a6f8b88-3eb1-44f2-b979-8c0d8b40d5b4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CurrentForeignTaxExpenseBenefit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_2857dea9-18ee-464b-b92a-6f2f6ab30713" xlink:to="loc_us-gaap_CurrentForeignTaxExpenseBenefit_9a6f8b88-3eb1-44f2-b979-8c0d8b40d5b4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_WithholdingForeignIncomeTaxExpenseBenefit_147e1a28-213c-45c6-8fa3-a3de3619bd8e" xlink:href="flnc-20230930.xsd#flnc_WithholdingForeignIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_2857dea9-18ee-464b-b92a-6f2f6ab30713" xlink:to="loc_flnc_WithholdingForeignIncomeTaxExpenseBenefit_147e1a28-213c-45c6-8fa3-a3de3619bd8e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_b4c3ef10-5075-453f-8583-2790802d120a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredForeignIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_2857dea9-18ee-464b-b92a-6f2f6ab30713" xlink:to="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_b4c3ef10-5075-453f-8583-2790802d120a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#IncomeTaxesEffectiveIncomeTaxRateDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_0585db92-c4ff-4f1a-bb75-7a5d88e0b145" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_258a2b1a-b743-410b-ab67-983f6e94b63f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_0585db92-c4ff-4f1a-bb75-7a5d88e0b145" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_258a2b1a-b743-410b-ab67-983f6e94b63f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_c21e2b0a-09bf-47b5-98ba-9fb6de14991d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_0585db92-c4ff-4f1a-bb75-7a5d88e0b145" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_c21e2b0a-09bf-47b5-98ba-9fb6de14991d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_f0a77ba8-2cc4-4854-8a65-007e95fe2ae9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_0585db92-c4ff-4f1a-bb75-7a5d88e0b145" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_f0a77ba8-2cc4-4854-8a65-007e95fe2ae9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense_8a6fc00b-e4b0-4b9c-9e31-b3cd5836d2d1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_0585db92-c4ff-4f1a-bb75-7a5d88e0b145" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense_8a6fc00b-e4b0-4b9c-9e31-b3cd5836d2d1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_7c317259-8f4c-470e-9d14-961f312a2c3c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_0585db92-c4ff-4f1a-bb75-7a5d88e0b145" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_7c317259-8f4c-470e-9d14-961f312a2c3c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_019ced3f-5539-4a61-a2df-15796adb5279" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_0585db92-c4ff-4f1a-bb75-7a5d88e0b145" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_019ced3f-5539-4a61-a2df-15796adb5279" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_874afdde-20c7-4409-b40d-a71523e29350" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_0585db92-c4ff-4f1a-bb75-7a5d88e0b145" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_874afdde-20c7-4409-b40d-a71523e29350" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_EffectiveIncomeTaxRateReconciliationFlowThroughLossesPercent_ce5afad7-b982-49b3-ac6c-66d0042a04f8" xlink:href="flnc-20230930.xsd#flnc_EffectiveIncomeTaxRateReconciliationFlowThroughLossesPercent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_0585db92-c4ff-4f1a-bb75-7a5d88e0b145" xlink:to="loc_flnc_EffectiveIncomeTaxRateReconciliationFlowThroughLossesPercent_ce5afad7-b982-49b3-ac6c-66d0042a04f8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_EffectiveIncomeTaxRateReconciliationWithholdingTaxesPercent_e755985a-727b-48d7-b7a9-ae913ddb88db" xlink:href="flnc-20230930.xsd#flnc_EffectiveIncomeTaxRateReconciliationWithholdingTaxesPercent"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_0585db92-c4ff-4f1a-bb75-7a5d88e0b145" xlink:to="loc_flnc_EffectiveIncomeTaxRateReconciliationWithholdingTaxesPercent_e755985a-727b-48d7-b7a9-ae913ddb88db" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/IncomeTaxesDeferredTaxAssetsLiabilitiesDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#IncomeTaxesDeferredTaxAssetsLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/IncomeTaxesDeferredTaxAssetsLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_3b4c1b95-f927-45e6-8396-5cac6dd55416" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_91462914-060f-489f-b196-23b92e996060" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsNet_3b4c1b95-f927-45e6-8396-5cac6dd55416" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_91462914-060f-489f-b196-23b92e996060" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_2e126e67-ba62-4017-ad0f-be51d81357a3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsValuationAllowance"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsNet_3b4c1b95-f927-45e6-8396-5cac6dd55416" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_2e126e67-ba62-4017-ad0f-be51d81357a3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_868c2cb3-c111-426c-ab7b-0c6a9da29b6b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_DeferredTaxLiabilityTradeReceivable_f4b6fa41-7730-4257-bb68-15b41f5e15e7" xlink:href="flnc-20230930.xsd#flnc_DeferredTaxLiabilityTradeReceivable"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_868c2cb3-c111-426c-ab7b-0c6a9da29b6b" xlink:to="loc_flnc_DeferredTaxLiabilityTradeReceivable_f4b6fa41-7730-4257-bb68-15b41f5e15e7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals_f190a26d-66b9-4fde-a97c-68ecfb1b1659" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_868c2cb3-c111-426c-ab7b-0c6a9da29b6b" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals_f190a26d-66b9-4fde-a97c-68ecfb1b1659" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesUnrealizedCurrencyTransactionGains_d15caf15-8776-4374-9219-7694fc0d3216" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxLiabilitiesUnrealizedCurrencyTransactionGains"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_868c2cb3-c111-426c-ab7b-0c6a9da29b6b" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesUnrealizedCurrencyTransactionGains_d15caf15-8776-4374-9219-7694fc0d3216" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOther_040015db-fe4a-476a-a7b6-6cd55d4829f0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxLiabilitiesOther"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_868c2cb3-c111-426c-ab7b-0c6a9da29b6b" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesOther_040015db-fe4a-476a-a7b6-6cd55d4829f0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_76ae1b07-97b3-42f6-bc57-21eec3950c81" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_868c2cb3-c111-426c-ab7b-0c6a9da29b6b" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_76ae1b07-97b3-42f6-bc57-21eec3950c81" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_2d9c4acb-2782-4770-b836-2299bd28df8b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsGross"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_244993b6-f2a6-44b5-9de7-22205adbcb9d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_2d9c4acb-2782-4770-b836-2299bd28df8b" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_244993b6-f2a6-44b5-9de7-22205adbcb9d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsDeferredIncome_743d5457-0d77-4cc1-88c1-92e2ec69bceb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsDeferredIncome"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_2d9c4acb-2782-4770-b836-2299bd28df8b" xlink:to="loc_us-gaap_DeferredTaxAssetsDeferredIncome_743d5457-0d77-4cc1-88c1-92e2ec69bceb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsInvestments_85ea2ecd-4605-4e7e-9363-256d1d16f16a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsInvestments"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_2d9c4acb-2782-4770-b836-2299bd28df8b" xlink:to="loc_us-gaap_DeferredTaxAssetsInvestments_85ea2ecd-4605-4e7e-9363-256d1d16f16a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsUnrealizedCurrencyLosses_552a9a44-a8d1-43a2-b545-62f3ee1df918" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsUnrealizedCurrencyLosses"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_2d9c4acb-2782-4770-b836-2299bd28df8b" xlink:to="loc_us-gaap_DeferredTaxAssetsUnrealizedCurrencyLosses_552a9a44-a8d1-43a2-b545-62f3ee1df918" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsInventory_faa8fea8-3531-4f4b-b3d0-8c2544c3498c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsInventory"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_2d9c4acb-2782-4770-b836-2299bd28df8b" xlink:to="loc_us-gaap_DeferredTaxAssetsInventory_faa8fea8-3531-4f4b-b3d0-8c2544c3498c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsOther_43024de6-b930-4829-bd9e-736004135caa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsOther"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_2d9c4acb-2782-4770-b836-2299bd28df8b" xlink:to="loc_us-gaap_DeferredTaxAssetsOther_43024de6-b930-4829-bd9e-736004135caa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_985f171c-1322-4170-b976-9ee61fb503d0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_2d9c4acb-2782-4770-b836-2299bd28df8b" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_985f171c-1322-4170-b976-9ee61fb503d0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilities_e9d13274-872c-469c-998f-f4380d94de6a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_b7231f24-0586-4bdb-934f-ff8d1b06a036" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsNet"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxLiabilities_e9d13274-872c-469c-998f-f4380d94de6a" xlink:to="loc_us-gaap_DeferredTaxAssetsNet_b7231f24-0586-4bdb-934f-ff8d1b06a036" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_ccd37b5d-cfef-4ee1-8850-a8f3d7484f53" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxLiabilities_e9d13274-872c-469c-998f-f4380d94de6a" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilities_ccd37b5d-cfef-4ee1-8850-a8f3d7484f53" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/CommitmentandContingenciesPurchaseCommitmentsDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#CommitmentandContingenciesPurchaseCommitmentsDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/CommitmentandContingenciesPurchaseCommitmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitment_2d16ecdc-c34f-4ccd-975c-3ce5532382b8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCommitment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentDueInFourthYear_862bab2f-b0fd-475e-bc66-4fcacecc9f3a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCommitmentDueInFourthYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_2d16ecdc-c34f-4ccd-975c-3ce5532382b8" xlink:to="loc_us-gaap_OtherCommitmentDueInFourthYear_862bab2f-b0fd-475e-bc66-4fcacecc9f3a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_OtherCommitmentToBePaidYearSixAndThereafter_2c39b569-08ad-4092-ae8e-d8d308112102" xlink:href="flnc-20230930.xsd#flnc_OtherCommitmentToBePaidYearSixAndThereafter"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_2d16ecdc-c34f-4ccd-975c-3ce5532382b8" xlink:to="loc_flnc_OtherCommitmentToBePaidYearSixAndThereafter_2c39b569-08ad-4092-ae8e-d8d308112102" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentDueInThirdYear_901bf81c-48e5-4b40-96f0-7ac23cc2b189" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCommitmentDueInThirdYear"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_2d16ecdc-c34f-4ccd-975c-3ce5532382b8" xlink:to="loc_us-gaap_OtherCommitmentDueInThirdYear_901bf81c-48e5-4b40-96f0-7ac23cc2b189" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentDueInSecondYear_6b5ecb8c-40c5-4f59-b0c9-d88b6c75020b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCommitmentDueInSecondYear"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_2d16ecdc-c34f-4ccd-975c-3ce5532382b8" xlink:to="loc_us-gaap_OtherCommitmentDueInSecondYear_6b5ecb8c-40c5-4f59-b0c9-d88b6c75020b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentDueInFifthYear_7d9067e0-af0f-46ac-9c84-5f1d00208379" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCommitmentDueInFifthYear"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_2d16ecdc-c34f-4ccd-975c-3ce5532382b8" xlink:to="loc_us-gaap_OtherCommitmentDueInFifthYear_7d9067e0-af0f-46ac-9c84-5f1d00208379" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentDueInNextTwelveMonths_c6eee062-f903-4755-919e-ff75f5f512c8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCommitmentDueInNextTwelveMonths"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_2d16ecdc-c34f-4ccd-975c-3ce5532382b8" xlink:to="loc_us-gaap_OtherCommitmentDueInNextTwelveMonths_c6eee062-f903-4755-919e-ff75f5f512c8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligation_59167b75-8590-48b3-a022-4ba64568bc42" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PurchaseObligation"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInFifthYear_7055facb-f9ca-42dc-a291-29e2db95da68" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PurchaseObligationDueInFifthYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_59167b75-8590-48b3-a022-4ba64568bc42" xlink:to="loc_us-gaap_PurchaseObligationDueInFifthYear_7055facb-f9ca-42dc-a291-29e2db95da68" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInFourthYear_73edd59d-7e4f-4fe5-844f-7c4a4babe167" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PurchaseObligationDueInFourthYear"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_59167b75-8590-48b3-a022-4ba64568bc42" xlink:to="loc_us-gaap_PurchaseObligationDueInFourthYear_73edd59d-7e4f-4fe5-844f-7c4a4babe167" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInSecondYear_2750bf3d-9e27-4f0e-b4a9-0623858f6514" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PurchaseObligationDueInSecondYear"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_59167b75-8590-48b3-a022-4ba64568bc42" xlink:to="loc_us-gaap_PurchaseObligationDueInSecondYear_2750bf3d-9e27-4f0e-b4a9-0623858f6514" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_PurchaseObligationToBePaidYearSixAndAfter_13973d89-4338-4896-b709-7675acfc1263" xlink:href="flnc-20230930.xsd#flnc_PurchaseObligationToBePaidYearSixAndAfter"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_59167b75-8590-48b3-a022-4ba64568bc42" xlink:to="loc_flnc_PurchaseObligationToBePaidYearSixAndAfter_13973d89-4338-4896-b709-7675acfc1263" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInNextTwelveMonths_06ad2236-e044-48cd-b863-076034b5e918" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PurchaseObligationDueInNextTwelveMonths"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_59167b75-8590-48b3-a022-4ba64568bc42" xlink:to="loc_us-gaap_PurchaseObligationDueInNextTwelveMonths_06ad2236-e044-48cd-b863-076034b5e918" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInThirdYear_6409f139-f337-4ca0-ac8a-248fca3b5ab8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PurchaseObligationDueInThirdYear"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_59167b75-8590-48b3-a022-4ba64568bc42" xlink:to="loc_us-gaap_PurchaseObligationDueInThirdYear_6409f139-f337-4ca0-ac8a-248fca3b5ab8" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/CommitmentandContingenciesWarrantyLiabilitiesDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#CommitmentandContingenciesWarrantyLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/CommitmentandContingenciesWarrantyLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_flnc_StandardAndExtendedProductWarrantyAccrualNetOfSupplierRecoveries_eae2ae6d-2e16-4cb6-90f6-9c84fd79d4fc" xlink:href="flnc-20230930.xsd#flnc_StandardAndExtendedProductWarrantyAccrualNetOfSupplierRecoveries"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductWarrantyAccrual_38a926b3-76ec-4a77-ae3d-013e59947599" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProductWarrantyAccrual"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flnc_StandardAndExtendedProductWarrantyAccrualNetOfSupplierRecoveries_eae2ae6d-2e16-4cb6-90f6-9c84fd79d4fc" xlink:to="loc_us-gaap_ProductWarrantyAccrual_38a926b3-76ec-4a77-ae3d-013e59947599" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_StandardAndExtendedProductWarrantyAccrualSupplierRecoveries_ec2b57d7-6d16-43f2-b956-bd2185d86aae" xlink:href="flnc-20230930.xsd#flnc_StandardAndExtendedProductWarrantyAccrualSupplierRecoveries"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flnc_StandardAndExtendedProductWarrantyAccrualNetOfSupplierRecoveries_eae2ae6d-2e16-4cb6-90f6-9c84fd79d4fc" xlink:to="loc_flnc_StandardAndExtendedProductWarrantyAccrualSupplierRecoveries_ec2b57d7-6d16-43f2-b956-bd2185d86aae" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/RelatedPartyTransactionsBalanceSheetInformationDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#RelatedPartyTransactionsBalanceSheetInformationDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/RelatedPartyTransactionsBalanceSheetInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesNetCurrent_c15e1698-99d7-4938-9921-5a115b6279dc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReceivablesNetCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherReceivablesNetCurrent_2c2fc1d4-9311-4963-84e3-cb095c2730b6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherReceivablesNetCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ReceivablesNetCurrent_c15e1698-99d7-4938-9921-5a115b6279dc" xlink:to="loc_us-gaap_OtherReceivablesNetCurrent_2c2fc1d4-9311-4963-84e3-cb095c2730b6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_2411e5ff-fa91-4400-a067-a08aaf03bbb0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ReceivablesNetCurrent_c15e1698-99d7-4938-9921-5a115b6279dc" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetCurrent_2411e5ff-fa91-4400-a067-a08aaf03bbb0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_AdvancesToSuppliersRelatedParties_1ff557b8-90c5-4b73-aaeb-52e17f9115c8" xlink:href="flnc-20230930.xsd#flnc_AdvancesToSuppliersRelatedParties"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_AdvancesOnInventoryPurchasesNoncurrent_42943c66-98bf-48fb-89c2-115074029810" xlink:href="flnc-20230930.xsd#flnc_AdvancesOnInventoryPurchasesNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flnc_AdvancesToSuppliersRelatedParties_1ff557b8-90c5-4b73-aaeb-52e17f9115c8" xlink:to="loc_flnc_AdvancesOnInventoryPurchasesNoncurrent_42943c66-98bf-48fb-89c2-115074029810" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdvancesOnInventoryPurchases_216a155c-f4f4-4bfc-ac4e-6ae7c609cbd3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdvancesOnInventoryPurchases"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flnc_AdvancesToSuppliersRelatedParties_1ff557b8-90c5-4b73-aaeb-52e17f9115c8" xlink:to="loc_us-gaap_AdvancesOnInventoryPurchases_216a155c-f4f4-4bfc-ac4e-6ae7c609cbd3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_DueToRelatedPartiesAndContractWithCustomerAffiliatedEntitiesLiabilityCurrent_ac302ada-63bd-491f-826c-902eb196cb0f" xlink:href="flnc-20230930.xsd#flnc_DueToRelatedPartiesAndContractWithCustomerAffiliatedEntitiesLiabilityCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_4ac1f2c3-91e7-44e2-97ac-5641fee7edf4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flnc_DueToRelatedPartiesAndContractWithCustomerAffiliatedEntitiesLiabilityCurrent_ac302ada-63bd-491f-826c-902eb196cb0f" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_4ac1f2c3-91e7-44e2-97ac-5641fee7edf4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_b5894ef5-1058-4187-aebb-f43ea9f91e73" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flnc_DueToRelatedPartiesAndContractWithCustomerAffiliatedEntitiesLiabilityCurrent_ac302ada-63bd-491f-826c-902eb196cb0f" xlink:to="loc_us-gaap_AccountsPayableCurrent_b5894ef5-1058-4187-aebb-f43ea9f91e73" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_64b03e03-1a97-4c84-8753-e0506e598339" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_flnc_DueToRelatedPartiesAndContractWithCustomerAffiliatedEntitiesLiabilityCurrent_ac302ada-63bd-491f-826c-902eb196cb0f" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_64b03e03-1a97-4c84-8753-e0506e598339" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/ScheduleICondensedFinancialInformationofRegistrantCondensedBalanceSheetDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#ScheduleICondensedFinancialInformationofRegistrantCondensedBalanceSheetDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/ScheduleICondensedFinancialInformationofRegistrantCondensedBalanceSheetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_be82a610-bcf5-4e5b-9ec8-01a57d2f98e6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_5f352dc3-bb40-4e9e-afd4-b9aa653ce832" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_be82a610-bcf5-4e5b-9ec8-01a57d2f98e6" xlink:to="loc_us-gaap_PreferredStockValue_5f352dc3-bb40-4e9e-afd4-b9aa653ce832" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_DistributionFromFluenceEnergyLLC_648fcde6-8dae-43ff-a751-8c3888a7297c" xlink:href="flnc-20230930.xsd#flnc_DistributionFromFluenceEnergyLLC"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_be82a610-bcf5-4e5b-9ec8-01a57d2f98e6" xlink:to="loc_flnc_DistributionFromFluenceEnergyLLC_648fcde6-8dae-43ff-a751-8c3888a7297c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_02144b78-a4fa-4393-b5f9-8d696c925d52" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_be82a610-bcf5-4e5b-9ec8-01a57d2f98e6" xlink:to="loc_us-gaap_CommonStockValue_02144b78-a4fa-4393-b5f9-8d696c925d52" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_ContributionToFluenceEnergyLLC_ddfc4356-94b4-42dc-8434-07db24daa6e8" xlink:href="flnc-20230930.xsd#flnc_ContributionToFluenceEnergyLLC"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_be82a610-bcf5-4e5b-9ec8-01a57d2f98e6" xlink:to="loc_flnc_ContributionToFluenceEnergyLLC_ddfc4356-94b4-42dc-8434-07db24daa6e8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValue_478294dd-db75-44c6-bbad-71d65a8eeb9d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockValue"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_be82a610-bcf5-4e5b-9ec8-01a57d2f98e6" xlink:to="loc_us-gaap_TreasuryStockValue_478294dd-db75-44c6-bbad-71d65a8eeb9d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_53f60bbe-a45b-4c9a-9204-32f6b93d9e64" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_be82a610-bcf5-4e5b-9ec8-01a57d2f98e6" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_53f60bbe-a45b-4c9a-9204-32f6b93d9e64" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_371da2b7-8be2-4559-812f-4182d634b40a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_be82a610-bcf5-4e5b-9ec8-01a57d2f98e6" xlink:to="loc_us-gaap_AdditionalPaidInCapital_371da2b7-8be2-4559-812f-4182d634b40a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrent_ea9d6f94-c62a-4d6f-acdb-76d07b170cb3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_aa68607a-ea80-4e8d-9223-75c9b8b391e3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_ea9d6f94-c62a-4d6f-acdb-76d07b170cb3" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_aa68607a-ea80-4e8d-9223-75c9b8b391e3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_43997213-820c-4968-9fc4-d7af5f5ab83c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_ea9d6f94-c62a-4d6f-acdb-76d07b170cb3" xlink:to="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_43997213-820c-4968-9fc4-d7af5f5ab83c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/ScheduleICondensedFinancialInformationofRegistrantCondensedStatementsofOperationsandComprehensiveLossDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#ScheduleICondensedFinancialInformationofRegistrantCondensedStatementsofOperationsandComprehensiveLossDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/ScheduleICondensedFinancialInformationofRegistrantCondensedStatementsofOperationsandComprehensiveLossDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_633b4b35-7179-438f-b104-fa2e3c2f8c9d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_9ea88811-6fda-48a9-b7f0-454dd1c6507a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestExpense"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_633b4b35-7179-438f-b104-fa2e3c2f8c9d" xlink:to="loc_us-gaap_InterestExpense_9ea88811-6fda-48a9-b7f0-454dd1c6507a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_81ccdb0b-7027-4527-8f6e-6a35ce848895" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_633b4b35-7179-438f-b104-fa2e3c2f8c9d" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_81ccdb0b-7027-4527-8f6e-6a35ce848895" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_bbfd9676-fe57-4964-8e22-183d8944919f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_633b4b35-7179-438f-b104-fa2e3c2f8c9d" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_bbfd9676-fe57-4964-8e22-183d8944919f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromSubsidiariesNetOfTax_922274c9-ae94-4254-94e3-b9eec452d6a5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromSubsidiariesNetOfTax"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_633b4b35-7179-438f-b104-fa2e3c2f8c9d" xlink:to="loc_us-gaap_IncomeLossFromSubsidiariesNetOfTax_922274c9-ae94-4254-94e3-b9eec452d6a5" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/ScheduleICondensedFinancialInformationofRegistrantCondensedStatementsofCashFlowsDetails" xlink:type="simple" xlink:href="flnc-20230930.xsd#ScheduleICondensedFinancialInformationofRegistrantCondensedStatementsofCashFlowsDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/ScheduleICondensedFinancialInformationofRegistrantCondensedStatementsofCashFlowsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f0331aa4-3bde-475d-85c5-846c049bb929" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromContributionsFromAffiliates_3c56ae2d-ab66-4a8c-8808-51d799f9b441" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromContributionsFromAffiliates"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f0331aa4-3bde-475d-85c5-846c049bb929" xlink:to="loc_us-gaap_ProceedsFromContributionsFromAffiliates_3c56ae2d-ab66-4a8c-8808-51d799f9b441" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_11dba1fd-b855-4934-bf3d-fe580aadb6f8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f0331aa4-3bde-475d-85c5-846c049bb929" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_11dba1fd-b855-4934-bf3d-fe580aadb6f8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDistributionsToAffiliates_065d1b4e-dca7-4157-ab07-cc7b43eb66f7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsOfDistributionsToAffiliates"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f0331aa4-3bde-475d-85c5-846c049bb929" xlink:to="loc_us-gaap_PaymentsOfDistributionsToAffiliates_065d1b4e-dca7-4157-ab07-cc7b43eb66f7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_c75d1d20-2298-4cc1-95bf-13308da25b35" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f0331aa4-3bde-475d-85c5-846c049bb929" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_c75d1d20-2298-4cc1-95bf-13308da25b35" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceInitialPublicOffering_fa9911ec-41cd-4f37-98a2-e7de17223f41" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromIssuanceInitialPublicOffering"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f0331aa4-3bde-475d-85c5-846c049bb929" xlink:to="loc_us-gaap_ProceedsFromIssuanceInitialPublicOffering_fa9911ec-41cd-4f37-98a2-e7de17223f41" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_341cf8ae-6941-40d3-95fd-82c05761362e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_83af4bd0-ce6b-49e3-8064-c4eec4b208a2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_341cf8ae-6941-40d3-95fd-82c05761362e" xlink:to="loc_us-gaap_NetIncomeLoss_83af4bd0-ce6b-49e3-8064-c4eec4b208a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_b44a481a-f4a4-4b51-b78d-881534d4703f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_341cf8ae-6941-40d3-95fd-82c05761362e" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_b44a481a-f4a4-4b51-b78d-881534d4703f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_6c7945c7-a787-4a25-b033-5c001cafd4a6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_341cf8ae-6941-40d3-95fd-82c05761362e" xlink:to="loc_us-gaap_ShareBasedCompensation_6c7945c7-a787-4a25-b033-5c001cafd4a6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDueToRelatedPartiesCurrent_0052092c-0dd6-4e81-8704-09ff5fff6db6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInDueToRelatedPartiesCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_341cf8ae-6941-40d3-95fd-82c05761362e" xlink:to="loc_us-gaap_IncreaseDecreaseInDueToRelatedPartiesCurrent_0052092c-0dd6-4e81-8704-09ff5fff6db6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromSubsidiariesNetOfTax_f8574540-d810-4733-be45-59f475672268" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromSubsidiariesNetOfTax"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_341cf8ae-6941-40d3-95fd-82c05761362e" xlink:to="loc_us-gaap_IncomeLossFromSubsidiariesNetOfTax_f8574540-d810-4733-be45-59f475672268" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherReceivables_7245ada3-85b4-40ad-98c8-32f885e80983" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOtherReceivables"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_341cf8ae-6941-40d3-95fd-82c05761362e" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherReceivables_7245ada3-85b4-40ad-98c8-32f885e80983" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
