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BORROWINGS - Long term narrative and interest expense (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Interest expense |  |  |
Interest expense | $ 137,468 | $ 114,099 | $ 74,266
Interest capitalized: |  |  |
Project assets | 38,456 | 27,676 | 26,439
Solar power and battery energy storage systems | 70,487 | 33,097 | 18,666
Property, plant, and equipment |  | 963 |
Total interest costs | $ 246,411 | $ 175,835 | $ 119,371
Short-term borrowings |  |  |
BORROWINGS |  |  |
Floating interest rate (as a percent) | 3.10% | 3.80% |
Long-term borrowings |  |  |
BORROWINGS |  |  |
Floating interest rate (as a percent) | 5.40% | 6.70% |

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