| Sep 30, 2022 | Sep 30, 2023 | Sep 30, 2024 |
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| Cash and cash equivalents | 357 | 346 | 449 |
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| Restricted cash | 62 | 107 | 46 |
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| Trade receivables, net | 87 | 103 | 216 |
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| Unbilled receivables | 139 | 192 | 172 |
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| Other Receivables, Net, Current | - | 59 | 363 |
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| Advances to suppliers | 55 | 108 | 175 |
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| Inventory, net | 653 | 225 | 183 |
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| Accounts Receivable from Securitization | - | 24 | 31 |
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| Other current assets | 27 | 31 | 47 |
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| Total current assets | 1,602 | 1,195 | 1,680 |
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| Property and equipment, net | 14 | 13 | 15 |
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| Intangible assets, net | 52 | 56 | 60 |
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| Goodwill | 25 | 26 | 27 |
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| Deferred income tax asset, net | 3 | 0 | 9 |
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| Note receivable - pledged as collateral | - | 31 | - |
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| Other non-current assets | 37 | 32 | 110 |
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| Total non-current assets | 144 | 157 | 222 |
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| Total assets | 1,746 | 1,352 | 1,902 |
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| Accounts payable | 305 | 63 | 437 |
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| Long-Term Debt, Current Maturities | - | 23 | 30 |
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| Personnel related liabilities | 21 | 52 | 59 |
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| Accruals and provisions | 184 | 172 | 338 |
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| Taxes payable | 11 | 29 | 58 |
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| Other current liabilities | 7 | 17 | 24 |
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| Total current liabilities | 1,109 | 746 | 1,259 |
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| Deferred income tax liability | 5 | 5 | 7 |
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| Long-Term Debt, Excluding Current Maturities | - | 28 | - |
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| Other non-current liabilities | 1 | 17 | 29 |
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| Total non-current liabilities | 7 | 50 | 36 |
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| Total liabilities | 1,116 | 796 | 1,295 |
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| Common stock | 0 | 0 | 0 |
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| Treasury stock, at cost | 5 | 8 | 9 |
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| Additional paid-in capital | 543 | 581 | 635 |
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| Accumulated other comprehensive (loss) income | 3 | 3 | -2 |
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| Accumulated deficit | -105 | -174 | -151 |
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| Total stockholders’ equity attributable to Fluence Energy, Inc. | 629 | 556 | 607 |
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| Non-controlling interest | 193 | 154 | 135 |
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| Total stockholders’ equity | 0 | 0 | 0 |
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| Total liabilities, stockholders’ equity | 1,746 | 1,352 | 1,902 |
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