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Acquisitions - Thunderhead (Details) - Thunderhead Wind Energy LLC $ in Millions | 1 Months Ended |
--- | --- | ---
Aug. 31, 2019 USD ($) MW | Feb. 19, 2020 USD ($)
Asset Acquisition |  |
Capacity of generation unit | MW | 300 |
Duration of offtake agreement for the sale of energy produced | 12 years |
WECI |  |
Asset Acquisition |  |
Ownership interest in generating facility acquired | 80.00% |
Acquisition purchase price | $ 338 |
Additional ownership interest acquired |  | 10.00%
Additional acquisition purchase price |  | $ 43

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