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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2025 Workiva-->
<!--r:b15931cb-456a-4bd3-84bc-f5a0f1e01f0a,g:8523c478-0a8d-4f14-8665-5f451c8a83a0-->
<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/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="flnc-20250331.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrent_c34736a2-9233-4257-a6d1-f855a290b439" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_5bdda7ba-6950-4c5f-8cce-831eb023f4f0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_c34736a2-9233-4257-a6d1-f855a290b439" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_5bdda7ba-6950-4c5f-8cce-831eb023f4f0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_2991d9b2-e3bc-4070-90c0-1e9c409d4435" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_c34736a2-9233-4257-a6d1-f855a290b439" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_2991d9b2-e3bc-4070-90c0-1e9c409d4435" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_f44fdfcd-3f16-405c-be93-c84aaf00ec07" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_c34736a2-9233-4257-a6d1-f855a290b439" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_f44fdfcd-3f16-405c-be93-c84aaf00ec07" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_3eff32d2-1b81-4963-a5e0-73bd5e25d4ac" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_c34736a2-9233-4257-a6d1-f855a290b439" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_3eff32d2-1b81-4963-a5e0-73bd5e25d4ac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_7b7ace15-5cfb-4421-a89c-ed68358df3eb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_c34736a2-9233-4257-a6d1-f855a290b439" xlink:to="loc_us-gaap_Goodwill_7b7ace15-5cfb-4421-a89c-ed68358df3eb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_e4d815c4-e5f8-4923-bc5e-c317fd278ef8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_3ef79d27-69ff-4999-8b13-3fcd29115506" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_e4d815c4-e5f8-4923-bc5e-c317fd278ef8" xlink:to="loc_us-gaap_StockholdersEquity_3ef79d27-69ff-4999-8b13-3fcd29115506" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_9bc7adc3-afe8-4759-8ba0-bde5bdb299f3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_e4d815c4-e5f8-4923-bc5e-c317fd278ef8" xlink:to="loc_us-gaap_MinorityInterest_9bc7adc3-afe8-4759-8ba0-bde5bdb299f3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_dfdf6086-88b9-486d-b75f-f01733bcdf38" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_d8fe7d97-e494-497f-9aaa-bddffd71aeba" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_dfdf6086-88b9-486d-b75f-f01733bcdf38" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_d8fe7d97-e494-497f-9aaa-bddffd71aeba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_6ec20357-f7e4-45a7-ae4f-1781f091e704" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_dfdf6086-88b9-486d-b75f-f01733bcdf38" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_6ec20357-f7e4-45a7-ae4f-1781f091e704" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleLongTermNotesPayable_19100bad-f0e1-4180-a5d2-42ccef4b55f5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConvertibleLongTermNotesPayable"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_dfdf6086-88b9-486d-b75f-f01733bcdf38" xlink:to="loc_us-gaap_ConvertibleLongTermNotesPayable_19100bad-f0e1-4180-a5d2-42ccef4b55f5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_433f005e-0154-41ae-bc49-f5e06466b987" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_e492786d-fd29-4158-b18d-e07f9674fa82" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_433f005e-0154-41ae-bc49-f5e06466b987" xlink:to="loc_us-gaap_AssetsCurrent_e492786d-fd29-4158-b18d-e07f9674fa82" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrent_7f8e565c-003b-448e-9b5f-ea2442945fa7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_433f005e-0154-41ae-bc49-f5e06466b987" xlink:to="loc_us-gaap_AssetsNoncurrent_7f8e565c-003b-448e-9b5f-ea2442945fa7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_970e860f-09f7-4a2f-99b3-23672f94abe4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_a19d0a7c-eaa6-46bb-a157-65867f9a676c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_970e860f-09f7-4a2f-99b3-23672f94abe4" xlink:to="loc_us-gaap_PreferredStockValue_a19d0a7c-eaa6-46bb-a157-65867f9a676c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_6dce4519-afb3-41d2-aef3-758173fa82ae" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_970e860f-09f7-4a2f-99b3-23672f94abe4" xlink:to="loc_us-gaap_CommonStockValue_6dce4519-afb3-41d2-aef3-758173fa82ae" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValue_d6a790a6-594b-43c2-8ed6-27d97d7a0330" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TreasuryStockValue"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_970e860f-09f7-4a2f-99b3-23672f94abe4" xlink:to="loc_us-gaap_TreasuryStockValue_d6a790a6-594b-43c2-8ed6-27d97d7a0330" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_317f14f9-5c30-4212-af28-25ade581c3f6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_970e860f-09f7-4a2f-99b3-23672f94abe4" xlink:to="loc_us-gaap_AdditionalPaidInCapital_317f14f9-5c30-4212-af28-25ade581c3f6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_8eb64288-3779-4aca-971b-499c6d5ecba0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_970e860f-09f7-4a2f-99b3-23672f94abe4" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_8eb64288-3779-4aca-971b-499c6d5ecba0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_3358061f-e7af-4c19-8346-171a553da249" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_970e860f-09f7-4a2f-99b3-23672f94abe4" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_3358061f-e7af-4c19-8346-171a553da249" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_ce259843-ff1e-475f-a111-b0deda867fc5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_ad2db84e-e9f1-427e-9be1-50d32e6cf224" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_ce259843-ff1e-475f-a111-b0deda867fc5" xlink:to="loc_us-gaap_LiabilitiesCurrent_ad2db84e-e9f1-427e-9be1-50d32e6cf224" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_ac85a3bd-4a2b-4579-9c4f-909f4f3188ff" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_ce259843-ff1e-475f-a111-b0deda867fc5" xlink:to="loc_us-gaap_LiabilitiesNoncurrent_ac85a3bd-4a2b-4579-9c4f-909f4f3188ff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_3434d4e0-4ff1-4384-80b3-7fc3b005916e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableFromSecuritization_fd3e4b92-eacd-4d2b-900f-809d39680c7e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableFromSecuritization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_3434d4e0-4ff1-4384-80b3-7fc3b005916e" xlink:to="loc_us-gaap_AccountsReceivableFromSecuritization_fd3e4b92-eacd-4d2b-900f-809d39680c7e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_8f050255-2863-4bf5-9368-470ab9f55b06" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_AssetsCurrent_3434d4e0-4ff1-4384-80b3-7fc3b005916e" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetCurrent_8f050255-2863-4bf5-9368-470ab9f55b06" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_ddad3b06-dbee-4885-bd60-891e5acbf7ab" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_3434d4e0-4ff1-4384-80b3-7fc3b005916e" xlink:to="loc_us-gaap_OtherAssetsCurrent_ddad3b06-dbee-4885-bd60-891e5acbf7ab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_8d6ee0f7-47ce-46a0-95cf-fdcae029feb0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_3434d4e0-4ff1-4384-80b3-7fc3b005916e" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_8d6ee0f7-47ce-46a0-95cf-fdcae029feb0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_1add98eb-fdc9-4ddf-ac23-ae02794baba9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_3434d4e0-4ff1-4384-80b3-7fc3b005916e" xlink:to="loc_us-gaap_RestrictedCashCurrent_1add98eb-fdc9-4ddf-ac23-ae02794baba9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_3da6d8ba-bc3c-4c65-b697-3aeca33bae67" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_3434d4e0-4ff1-4384-80b3-7fc3b005916e" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_3da6d8ba-bc3c-4c65-b697-3aeca33bae67" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherReceivablesNetCurrent_89eb7cd4-3221-4608-ac43-bda30d9a2c1d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_3434d4e0-4ff1-4384-80b3-7fc3b005916e" xlink:to="loc_us-gaap_OtherReceivablesNetCurrent_89eb7cd4-3221-4608-ac43-bda30d9a2c1d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_4fc2ac7e-153c-447f-b18a-6a1c51faf52e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_3434d4e0-4ff1-4384-80b3-7fc3b005916e" xlink:to="loc_us-gaap_InventoryNet_4fc2ac7e-153c-447f-b18a-6a1c51faf52e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdvancesOnInventoryPurchases_38b606fc-15ed-4acd-aa57-87c8548552fd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_3434d4e0-4ff1-4384-80b3-7fc3b005916e" xlink:to="loc_us-gaap_AdvancesOnInventoryPurchases_38b606fc-15ed-4acd-aa57-87c8548552fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_15e41bbe-1bbb-4ff1-bbf8-cb72188d3d90" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_72b32c1a-ebd7-475e-af56-483b07d3cc3a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_15e41bbe-1bbb-4ff1-bbf8-cb72188d3d90" xlink:to="loc_us-gaap_Liabilities_72b32c1a-ebd7-475e-af56-483b07d3cc3a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_91449465-9ed6-4b2c-b973-bc754c97bbd5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_15e41bbe-1bbb-4ff1-bbf8-cb72188d3d90" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_91449465-9ed6-4b2c-b973-bc754c97bbd5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_46427e77-60db-446c-b971-e53be4cc1532" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_f2f24336-782b-4f6b-b81f-bea9859086df" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_46427e77-60db-446c-b971-e53be4cc1532" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_f2f24336-782b-4f6b-b81f-bea9859086df" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_9e61edd8-7929-46ca-b668-39f551559ace" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_46427e77-60db-446c-b971-e53be4cc1532" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_9e61edd8-7929-46ca-b668-39f551559ace" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_dac70791-d1b8-444f-aa74-16940398a8dd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_46427e77-60db-446c-b971-e53be4cc1532" xlink:to="loc_us-gaap_LongTermDebtCurrent_dac70791-d1b8-444f-aa74-16940398a8dd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_3c5d0085-6256-4720-a87a-d222d3bcb11a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_46427e77-60db-446c-b971-e53be4cc1532" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_3c5d0085-6256-4720-a87a-d222d3bcb11a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_6286c806-7012-45b2-984f-b45848369f99" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_46427e77-60db-446c-b971-e53be4cc1532" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_6286c806-7012-45b2-984f-b45848369f99" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_c113c9af-56b5-4a79-903f-681c409f08f9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_46427e77-60db-446c-b971-e53be4cc1532" xlink:to="loc_us-gaap_AccountsPayableCurrent_c113c9af-56b5-4a79-903f-681c409f08f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxesPayableCurrent_2fc34da4-abed-4118-b26a-132f1c853ce0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TaxesPayableCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_46427e77-60db-446c-b971-e53be4cc1532" xlink:to="loc_us-gaap_TaxesPayableCurrent_2fc34da4-abed-4118-b26a-132f1c853ce0" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSUNAUDITED" xlink:type="simple" xlink:href="flnc-20250331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSUNAUDITED"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_b65385c4-d7ad-491c-8f40-9eccefc87447" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_55418d29-d515-4fa2-8448-c71b11e1b867" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_b65385c4-d7ad-491c-8f40-9eccefc87447" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_55418d29-d515-4fa2-8448-c71b11e1b867" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_d1c3f5a8-8c43-478f-a26f-c69bb8ceb2b0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_b65385c4-d7ad-491c-8f40-9eccefc87447" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_d1c3f5a8-8c43-478f-a26f-c69bb8ceb2b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_190d5736-7983-4592-98a9-a74bd2b0327a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_22cda56a-6cc2-49f0-bfe2-803eba5f1fad" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_190d5736-7983-4592-98a9-a74bd2b0327a" xlink:to="loc_us-gaap_ProfitLoss_22cda56a-6cc2-49f0-bfe2-803eba5f1fad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_fd14398b-1458-4e86-94be-47b30179d7c1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_190d5736-7983-4592-98a9-a74bd2b0327a" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_fd14398b-1458-4e86-94be-47b30179d7c1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_1a26dc4f-6946-46b6-b622-f4f8c3a573f1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_361a2a89-0f6e-4108-8cf0-541160f937e1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_1a26dc4f-6946-46b6-b622-f4f8c3a573f1" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_361a2a89-0f6e-4108-8cf0-541160f937e1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_63ee2419-4810-4397-98f6-93b3771243e4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_1a26dc4f-6946-46b6-b622-f4f8c3a573f1" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_63ee2419-4810-4397-98f6-93b3771243e4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpense_098c9ed0-212a-4273-acb7-493ecd96c5de" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SellingAndMarketingExpense"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_1a26dc4f-6946-46b6-b622-f4f8c3a573f1" xlink:to="loc_us-gaap_SellingAndMarketingExpense_098c9ed0-212a-4273-acb7-493ecd96c5de" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_7fdea37d-b0db-4618-8991-9da50541811a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_1a26dc4f-6946-46b6-b622-f4f8c3a573f1" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_7fdea37d-b0db-4618-8991-9da50541811a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_c919e702-2d7a-4559-9d14-affd588fafde" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_1a26dc4f-6946-46b6-b622-f4f8c3a573f1" xlink:to="loc_us-gaap_DepreciationAndAmortization_c919e702-2d7a-4559-9d14-affd588fafde" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_dd426bba-1db6-4b9e-abb4-2d91a5a512b1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_1a26dc4f-6946-46b6-b622-f4f8c3a573f1" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_dd426bba-1db6-4b9e-abb4-2d91a5a512b1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_eca56f87-2ed5-44ec-9428-a156e39ee0ad" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GrossProfit"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_1a26dc4f-6946-46b6-b622-f4f8c3a573f1" xlink:to="loc_us-gaap_GrossProfit_eca56f87-2ed5-44ec-9428-a156e39ee0ad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_60ce0e71-0f76-4591-a4b3-bc0734c276eb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_84801daa-4ca9-4bc8-b3e2-e3e9adcb6af2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_60ce0e71-0f76-4591-a4b3-bc0734c276eb" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_84801daa-4ca9-4bc8-b3e2-e3e9adcb6af2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_faf0e3ff-2984-4462-a9da-08990ab9015b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_60ce0e71-0f76-4591-a4b3-bc0734c276eb" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_faf0e3ff-2984-4462-a9da-08990ab9015b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSSUNAUDITED" xlink:type="simple" xlink:href="flnc-20250331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSSUNAUDITED"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSSUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_11690b25-1e3a-4b60-bdf9-88957554d980" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_cc3bc355-658c-4998-9bf2-ea656e0f3d8d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_11690b25-1e3a-4b60-bdf9-88957554d980" xlink:to="loc_us-gaap_ProfitLoss_cc3bc355-658c-4998-9bf2-ea656e0f3d8d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_7961c040-1cdf-41b7-a7ea-d52638826f66" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_11690b25-1e3a-4b60-bdf9-88957554d980" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_7961c040-1cdf-41b7-a7ea-d52638826f66" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_2499ff1e-b32c-4125-aae3-a11ae274acab" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_9f0c7732-f013-41cf-a540-c656fdfe8d17" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_2499ff1e-b32c-4125-aae3-a11ae274acab" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_9f0c7732-f013-41cf-a540-c656fdfe8d17" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_cdc908ca-1399-4eef-a370-09d97eee4e47" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_2499ff1e-b32c-4125-aae3-a11ae274acab" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_cdc908ca-1399-4eef-a370-09d97eee4e47" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_6ecd877b-e156-405a-9204-1aa6ed0ab265" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_4f572e3c-f124-4fe3-8294-207757563497" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_6ecd877b-e156-405a-9204-1aa6ed0ab265" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_4f572e3c-f124-4fe3-8294-207757563497" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_2fae9351-852d-462c-b1b0-b816b16e1c23" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_6ecd877b-e156-405a-9204-1aa6ed0ab265" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_2fae9351-852d-462c-b1b0-b816b16e1c23" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUNAUDITED" xlink:type="simple" xlink:href="flnc-20250331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUNAUDITED"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f3ff5f7a-bf96-4113-ad38-dca1f61cd698" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForSoftware_2ca7cebc-8ddc-49a5-9621-8d054df236b1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsForSoftware"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f3ff5f7a-bf96-4113-ad38-dca1f61cd698" xlink:to="loc_us-gaap_PaymentsForSoftware_2ca7cebc-8ddc-49a5-9621-8d054df236b1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_0edb7f87-5414-456a-bcb1-79e28f7b8e9f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_f3ff5f7a-bf96-4113-ad38-dca1f61cd698" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_0edb7f87-5414-456a-bcb1-79e28f7b8e9f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_4e88b4e1-def2-4d54-8fec-1af8eb3573ed" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_0a53848e-1f59-4ecc-8be5-55412cfb3f65" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_4e88b4e1-def2-4d54-8fec-1af8eb3573ed" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_0a53848e-1f59-4ecc-8be5-55412cfb3f65" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_9530f9a6-db46-4937-bb9d-1358b276f892" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_4e88b4e1-def2-4d54-8fec-1af8eb3573ed" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_9530f9a6-db46-4937-bb9d-1358b276f892" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_9fcf97a6-b955-4249-b1d3-8a536918a342" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_4e88b4e1-def2-4d54-8fec-1af8eb3573ed" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_9fcf97a6-b955-4249-b1d3-8a536918a342" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_74cbbd1c-885e-455f-9581-8975f7268907" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_4e88b4e1-def2-4d54-8fec-1af8eb3573ed" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_74cbbd1c-885e-455f-9581-8975f7268907" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3d854bbd-b7c3-4594-8bbf-f635e285ce19" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_4e002d37-ae37-44b9-8efa-06012b0e04b1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3d854bbd-b7c3-4594-8bbf-f635e285ce19" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_4e002d37-ae37-44b9-8efa-06012b0e04b1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_a54da137-2aef-4c02-ac49-d615426749d9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3d854bbd-b7c3-4594-8bbf-f635e285ce19" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_a54da137-2aef-4c02-ac49-d615426749d9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities_9a4288ba-aa2d-45ff-8f76-9d95d918723e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3d854bbd-b7c3-4594-8bbf-f635e285ce19" xlink:to="loc_us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities_9a4288ba-aa2d-45ff-8f76-9d95d918723e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_c1e51d28-fc0d-49e5-9feb-4423ffaa37fe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3d854bbd-b7c3-4594-8bbf-f635e285ce19" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_c1e51d28-fc0d-49e5-9feb-4423ffaa37fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromConvertibleDebt_d3df4c1f-936a-4809-9f88-ad5e65c35855" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromConvertibleDebt"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3d854bbd-b7c3-4594-8bbf-f635e285ce19" xlink:to="loc_us-gaap_ProceedsFromConvertibleDebt_d3df4c1f-936a-4809-9f88-ad5e65c35855" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_PaymentsOfCappedCallsRelatedToConvertibleNotes_bfe16d9e-b887-44ad-9a42-4c4b858b566e" xlink:href="flnc-20250331.xsd#flnc_PaymentsOfCappedCallsRelatedToConvertibleNotes"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3d854bbd-b7c3-4594-8bbf-f635e285ce19" xlink:to="loc_flnc_PaymentsOfCappedCallsRelatedToConvertibleNotes_bfe16d9e-b887-44ad-9a42-4c4b858b566e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_PaymentsOfDebtIssuanceCostsRevolvingFacilities_818f4c27-da8e-494a-bf20-20433d9bc1f1" xlink:href="flnc-20250331.xsd#flnc_PaymentsOfDebtIssuanceCostsRevolvingFacilities"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3d854bbd-b7c3-4594-8bbf-f635e285ce19" xlink:to="loc_flnc_PaymentsOfDebtIssuanceCostsRevolvingFacilities_818f4c27-da8e-494a-bf20-20433d9bc1f1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsMinorityInterest_d1296d67-4f82-4002-860d-0690a2b2d18a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsOfDividendsMinorityInterest"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3d854bbd-b7c3-4594-8bbf-f635e285ce19" xlink:to="loc_us-gaap_PaymentsOfDividendsMinorityInterest_d1296d67-4f82-4002-860d-0690a2b2d18a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_94125add-a1a2-4306-8614-ef9dee0e3d09" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_ShareBasedCompensation_94125add-a1a2-4306-8614-ef9dee0e3d09" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_cb762c70-ab08-4977-aa6b-b4eb7a061422" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_cb762c70-ab08-4977-aa6b-b4eb7a061422" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_4cc5ff14-e6de-4488-80dd-10116757c15a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_4cc5ff14-e6de-4488-80dd-10116757c15a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_a1862300-fd63-4391-bafd-3c15444f052e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_a1862300-fd63-4391-bafd-3c15444f052e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_a4ea8728-f5ae-462b-8478-6a3a6a13ee5e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_a4ea8728-f5ae-462b-8478-6a3a6a13ee5e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_4a8b1123-5d95-4a7c-bfde-ce3c799e17aa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_4a8b1123-5d95-4a7c-bfde-ce3c799e17aa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_884d5c16-592f-439c-a403-a22e361b06b7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentAssets"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_884d5c16-592f-439c-a403-a22e361b06b7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_IncreaseDecreaseToAdvancesOnInventoryPurchases_ab672bad-97a3-4355-8f5d-387d70b7c790" xlink:href="flnc-20250331.xsd#flnc_IncreaseDecreaseToAdvancesOnInventoryPurchases"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_flnc_IncreaseDecreaseToAdvancesOnInventoryPurchases_ab672bad-97a3-4355-8f5d-387d70b7c790" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_47193ea3-33ae-4701-b339-ab55e6b7ad00" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_47193ea3-33ae-4701-b339-ab55e6b7ad00" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_4381787b-742a-4a71-b7a7-18f2c5f5dbf2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_4381787b-742a-4a71-b7a7-18f2c5f5dbf2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerAsset_5cec4604-c93b-4d36-a35b-432b5cfc652b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerAsset"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerAsset_5cec4604-c93b-4d36-a35b-432b5cfc652b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_3224b3af-fcd4-4be1-a95c-001bfb4276ee" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOtherCurrentLiabilities"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_3224b3af-fcd4-4be1-a95c-001bfb4276ee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_188cf6b8-0770-4f7f-a65d-f093a79b92be" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_188cf6b8-0770-4f7f-a65d-f093a79b92be" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_c5fdd188-b3c1-40fd-ab9a-0b2bdd182e33" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_c5fdd188-b3c1-40fd-ab9a-0b2bdd182e33" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_00233eac-b24f-4cda-a28e-3d341cdae3df" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_ProfitLoss_00233eac-b24f-4cda-a28e-3d341cdae3df" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDueFromRelatedPartiesCurrent_2c4697cb-a78d-42a4-b685-a90641407894" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInDueFromRelatedPartiesCurrent"/>
    <link:calculationArc order="16" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_IncreaseDecreaseInDueFromRelatedPartiesCurrent_2c4697cb-a78d-42a4-b685-a90641407894" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_a6192aec-af29-4a3c-8002-6c0c688472f3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_a6192aec-af29-4a3c-8002-6c0c688472f3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWriteDown_a1eb5486-1494-4e4f-8994-2cf93275bc03" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryWriteDown"/>
    <link:calculationArc order="18" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_InventoryWriteDown_a1eb5486-1494-4e4f-8994-2cf93275bc03" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_199f2caa-ea7a-4eb9-9be1-e298406848ff" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="19" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7e1b16a4-30a0-4bfe-ae53-77f7c4ec87c3" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_199f2caa-ea7a-4eb9-9be1-e298406848ff" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/SummaryofSignificantAccountingPoliciesandEstimatesCashCashEquivalentsandRestrictedCashDetails" xlink:type="simple" xlink:href="flnc-20250331.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_ee6cccec-a773-48b0-99f1-5cb97f3da172" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_678e02de-f3e6-403a-9229-b9445a1fc214" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_ee6cccec-a773-48b0-99f1-5cb97f3da172" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_678e02de-f3e6-403a-9229-b9445a1fc214" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_74c29877-bafd-427b-a43d-578eb26eadb3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_ee6cccec-a773-48b0-99f1-5cb97f3da172" xlink:to="loc_us-gaap_RestrictedCashCurrent_74c29877-bafd-427b-a43d-578eb26eadb3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashNoncurrent_a60081bd-1ccf-46aa-92e1-77fb1725a580" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_ee6cccec-a773-48b0-99f1-5cb97f3da172" xlink:to="loc_us-gaap_RestrictedCashNoncurrent_a60081bd-1ccf-46aa-92e1-77fb1725a580" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/SummaryofSignificantAccountingPoliciesandEstimatesCashRestrictionsDetails" xlink:type="simple" xlink:href="flnc-20250331.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_69b3dc03-3b5e-4e94-ab9c-7968dea5d415" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedCash"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_e1febc4f-557a-488e-bb33-31b307b840bc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_69b3dc03-3b5e-4e94-ab9c-7968dea5d415" xlink:to="loc_us-gaap_RestrictedCashCurrent_e1febc4f-557a-488e-bb33-31b307b840bc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashNoncurrent_203b19b5-5eb6-4b4f-a0af-18746a349d80" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_69b3dc03-3b5e-4e94-ab9c-7968dea5d415" xlink:to="loc_us-gaap_RestrictedCashNoncurrent_203b19b5-5eb6-4b4f-a0af-18746a349d80" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/InventoryNetDetails" xlink:type="simple" xlink:href="flnc-20250331.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_17d21e39-ebe4-40b0-86a2-f002b051971d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryGross_f0d8ea6f-72f8-422c-9984-58722b375a55" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_17d21e39-ebe4-40b0-86a2-f002b051971d" xlink:to="loc_us-gaap_InventoryGross_f0d8ea6f-72f8-422c-9984-58722b375a55" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryValuationReserves_6897dfab-29eb-4e29-b618-eec685cc1cb7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_17d21e39-ebe4-40b0-86a2-f002b051971d" xlink:to="loc_us-gaap_InventoryValuationReserves_6897dfab-29eb-4e29-b618-eec685cc1cb7" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/OtherCurrentAssetsDetails" xlink:type="simple" xlink:href="flnc-20250331.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_f106763b-77dd-43d4-8435-bb8ee590ead2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesReceivable_88a0ae79-2072-47a5-98b4-2d949830f878" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_f106763b-77dd-43d4-8435-bb8ee590ead2" xlink:to="loc_us-gaap_IncomeTaxesReceivable_88a0ae79-2072-47a5-98b4-2d949830f878" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_577a3aa5-667f-4e27-89a0-dd1da4b45d09" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_f106763b-77dd-43d4-8435-bb8ee590ead2" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_577a3aa5-667f-4e27-89a0-dd1da4b45d09" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidInsurance_4da9af09-9796-465e-945b-d5cb09d03a5d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrepaidInsurance"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_f106763b-77dd-43d4-8435-bb8ee590ead2" xlink:to="loc_us-gaap_PrepaidInsurance_4da9af09-9796-465e-945b-d5cb09d03a5d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_StandardAndExtendedProductWarrantyAccrualCurrentSupplierRecoveries_50a4e8a2-96b9-4d7a-ab9b-65c09c7dba13" xlink:href="flnc-20250331.xsd#flnc_StandardAndExtendedProductWarrantyAccrualCurrentSupplierRecoveries"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_f106763b-77dd-43d4-8435-bb8ee590ead2" xlink:to="loc_flnc_StandardAndExtendedProductWarrantyAccrualCurrentSupplierRecoveries_50a4e8a2-96b9-4d7a-ab9b-65c09c7dba13" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsMiscellaneousCurrent_16848b2f-a85f-4a70-96bb-cf29111f76c9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsMiscellaneousCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_f106763b-77dd-43d4-8435-bb8ee590ead2" xlink:to="loc_us-gaap_OtherAssetsMiscellaneousCurrent_16848b2f-a85f-4a70-96bb-cf29111f76c9" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/IntangibleAssetsNetAmortizedCostDetails" xlink:type="simple" xlink:href="flnc-20250331.xsd#IntangibleAssetsNetAmortizedCostDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/IntangibleAssetsNetAmortizedCostDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_213ba25c-52ef-46e5-a83e-0152f184a6bc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_fff1322b-0807-4a3d-95c1-f57f79394c85" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_213ba25c-52ef-46e5-a83e-0152f184a6bc" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_fff1322b-0807-4a3d-95c1-f57f79394c85" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_7aa4af9f-1087-49ca-9d34-760a29db5657" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_213ba25c-52ef-46e5-a83e-0152f184a6bc" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_7aa4af9f-1087-49ca-9d34-760a29db5657" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/AccrualsandProvisionsDetails" xlink:type="simple" xlink:href="flnc-20250331.xsd#AccrualsandProvisionsDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/AccrualsandProvisionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_61c9edfc-b987-485f-8af9-abf1e96ea32e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccruedLiabilitiesCurrentAndNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_8ec1494e-6a10-4da1-bc60-75caa4cc3c93" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProductWarrantyAccrualClassifiedCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_61c9edfc-b987-485f-8af9-abf1e96ea32e" xlink:to="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_8ec1494e-6a10-4da1-bc60-75caa4cc3c93" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_739d397c-9d04-4b96-ba81-b3ddcd42e578" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_61c9edfc-b987-485f-8af9-abf1e96ea32e" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_739d397c-9d04-4b96-ba81-b3ddcd42e578" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLossOnContracts_6217fe1d-ca88-432f-8cbe-64127b93ba2d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_AccruedLiabilitiesCurrentAndNoncurrent_61c9edfc-b987-485f-8af9-abf1e96ea32e" xlink:to="loc_us-gaap_ProvisionForLossOnContracts_6217fe1d-ca88-432f-8cbe-64127b93ba2d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_AccruedSoftwareDevelopmentCostsCurrent_e4bfe703-f57d-4882-ae0b-11fd3b526136" xlink:href="flnc-20250331.xsd#flnc_AccruedSoftwareDevelopmentCostsCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_61c9edfc-b987-485f-8af9-abf1e96ea32e" xlink:to="loc_flnc_AccruedSoftwareDevelopmentCostsCurrent_e4bfe703-f57d-4882-ae0b-11fd3b526136" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/ConvertibleSeniorNotesNetScheduleofNetCarryingValueandFairValueoftheConvertibleSeniorNotesDetails" xlink:type="simple" xlink:href="flnc-20250331.xsd#ConvertibleSeniorNotesNetScheduleofNetCarryingValueandFairValueoftheConvertibleSeniorNotesDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/ConvertibleSeniorNotesNetScheduleofNetCarryingValueandFairValueoftheConvertibleSeniorNotesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_993efb4e-38db-4f05-90ad-9df1098e2e0c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_fcb4ffd4-dc97-468e-9342-481a9dc0c9a6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_993efb4e-38db-4f05-90ad-9df1098e2e0c" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_fcb4ffd4-dc97-468e-9342-481a9dc0c9a6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_faab3e68-831c-4f44-933d-e86f65255e38" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_993efb4e-38db-4f05-90ad-9df1098e2e0c" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_faab3e68-831c-4f44-933d-e86f65255e38" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/ConvertibleSeniorNotesNetScheduleofInterestExpenseDetails" xlink:type="simple" xlink:href="flnc-20250331.xsd#ConvertibleSeniorNotesNetScheduleofInterestExpenseDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/ConvertibleSeniorNotesNetScheduleofInterestExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_29b2e1a5-0950-4002-b4b9-47b0dea925e4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebtExcludingAmortization_dc14dc4a-18e1-40e2-b1ae-1343a705cd2d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseDebtExcludingAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_29b2e1a5-0950-4002-b4b9-47b0dea925e4" xlink:to="loc_us-gaap_InterestExpenseDebtExcludingAmortization_dc14dc4a-18e1-40e2-b1ae-1343a705cd2d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_425554a0-7249-4d89-8131-4408e27a006f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_29b2e1a5-0950-4002-b4b9-47b0dea925e4" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_425554a0-7249-4d89-8131-4408e27a006f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/CommitmentsandContingenciesPurchaseCommitmentsDetails" xlink:type="simple" xlink:href="flnc-20250331.xsd#CommitmentsandContingenciesPurchaseCommitmentsDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/CommitmentsandContingenciesPurchaseCommitmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitment_178d1a96-f05a-41a4-9e6f-19c82253e665" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherCommitment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsFutureMinimumPaymentsRemainderOfFiscalYear_985bb185-7dce-4345-939a-eb934be96621" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherCommitmentsFutureMinimumPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_178d1a96-f05a-41a4-9e6f-19c82253e665" xlink:to="loc_us-gaap_OtherCommitmentsFutureMinimumPaymentsRemainderOfFiscalYear_985bb185-7dce-4345-939a-eb934be96621" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_OtherCommitmentToBePaidYearFourAndAfter_357b5f89-e5e2-4e75-92d3-d92e3158ee06" xlink:href="flnc-20250331.xsd#flnc_OtherCommitmentToBePaidYearFourAndAfter"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_178d1a96-f05a-41a4-9e6f-19c82253e665" xlink:to="loc_flnc_OtherCommitmentToBePaidYearFourAndAfter_357b5f89-e5e2-4e75-92d3-d92e3158ee06" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentDueInNextTwelveMonths_680b5eb7-92e4-4336-abaa-cece2b99e62e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherCommitmentDueInNextTwelveMonths"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_178d1a96-f05a-41a4-9e6f-19c82253e665" xlink:to="loc_us-gaap_OtherCommitmentDueInNextTwelveMonths_680b5eb7-92e4-4336-abaa-cece2b99e62e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentDueInThirdYear_efef8f24-2a19-44d2-8a01-b1f04bdf987f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherCommitmentDueInThirdYear"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_178d1a96-f05a-41a4-9e6f-19c82253e665" xlink:to="loc_us-gaap_OtherCommitmentDueInThirdYear_efef8f24-2a19-44d2-8a01-b1f04bdf987f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentDueInSecondYear_bd0f3c4f-e677-415b-8324-2fcf8290ddf7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherCommitmentDueInSecondYear"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherCommitment_178d1a96-f05a-41a4-9e6f-19c82253e665" xlink:to="loc_us-gaap_OtherCommitmentDueInSecondYear_bd0f3c4f-e677-415b-8324-2fcf8290ddf7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligation_03639859-d5c9-4ce0-a721-8d5db67dc41f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PurchaseObligation"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInSecondYear_fda4acac-9861-4486-9b31-b0e4106231e4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PurchaseObligationDueInSecondYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_03639859-d5c9-4ce0-a721-8d5db67dc41f" xlink:to="loc_us-gaap_PurchaseObligationDueInSecondYear_fda4acac-9861-4486-9b31-b0e4106231e4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_PurchaseObligationToBePaidYearFourAndAfter_29467f9f-b22b-4ebe-a3b7-dd6bc0959f1a" xlink:href="flnc-20250331.xsd#flnc_PurchaseObligationToBePaidYearFourAndAfter"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_03639859-d5c9-4ce0-a721-8d5db67dc41f" xlink:to="loc_flnc_PurchaseObligationToBePaidYearFourAndAfter_29467f9f-b22b-4ebe-a3b7-dd6bc0959f1a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear_fbce8728-2a06-4083-b3c1-af0eb02679e0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_03639859-d5c9-4ce0-a721-8d5db67dc41f" xlink:to="loc_us-gaap_PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear_fbce8728-2a06-4083-b3c1-af0eb02679e0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInNextTwelveMonths_5cf6f6e0-3b3d-4570-ae48-1071b13de294" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PurchaseObligationDueInNextTwelveMonths"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_03639859-d5c9-4ce0-a721-8d5db67dc41f" xlink:to="loc_us-gaap_PurchaseObligationDueInNextTwelveMonths_5cf6f6e0-3b3d-4570-ae48-1071b13de294" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInThirdYear_abee4307-1418-4d4f-a58e-d09b2ab680d6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PurchaseObligationDueInThirdYear"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_03639859-d5c9-4ce0-a721-8d5db67dc41f" xlink:to="loc_us-gaap_PurchaseObligationDueInThirdYear_abee4307-1418-4d4f-a58e-d09b2ab680d6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/CommitmentsandContingenciesWarrantyLiabilitiesDetails" xlink:type="simple" xlink:href="flnc-20250331.xsd#CommitmentsandContingenciesWarrantyLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://fluenceenergy.com/role/CommitmentsandContingenciesWarrantyLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_flnc_StandardAndExtendedProductWarrantyAccrualNetOfSupplierRecoveries_c149a492-e063-4f53-b42c-d4873c9a51aa" xlink:href="flnc-20250331.xsd#flnc_StandardAndExtendedProductWarrantyAccrualNetOfSupplierRecoveries"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductWarrantyAccrual_490336dd-1678-4ae5-a1af-62148d676b2f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_c149a492-e063-4f53-b42c-d4873c9a51aa" xlink:to="loc_us-gaap_ProductWarrantyAccrual_490336dd-1678-4ae5-a1af-62148d676b2f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_flnc_StandardAndExtendedProductWarrantyAccrualSupplierRecoveries_53d335a7-49ad-486d-b366-ae92a42f2a3f" xlink:href="flnc-20250331.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_c149a492-e063-4f53-b42c-d4873c9a51aa" xlink:to="loc_flnc_StandardAndExtendedProductWarrantyAccrualSupplierRecoveries_53d335a7-49ad-486d-b366-ae92a42f2a3f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://fluenceenergy.com/role/RelatedPartyTransactionsBalanceSheetInformationDetails" xlink:type="simple" xlink:href="flnc-20250331.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_c8c68098-ad09-4ec2-8351-e70f925656d9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ReceivablesNetCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherReceivablesNetCurrent_6ee86a5d-e850-4f7b-8f37-3df913739620" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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_c8c68098-ad09-4ec2-8351-e70f925656d9" xlink:to="loc_us-gaap_OtherReceivablesNetCurrent_6ee86a5d-e850-4f7b-8f37-3df913739620" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnbilledReceivablesCurrent_cf899005-a3ff-4b5e-9671-eb76abe6c97b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_UnbilledReceivablesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ReceivablesNetCurrent_c8c68098-ad09-4ec2-8351-e70f925656d9" xlink:to="loc_us-gaap_UnbilledReceivablesCurrent_cf899005-a3ff-4b5e-9671-eb76abe6c97b" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
