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Other information - Additional Information (Details) | 12 Months Ended |
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Dec. 31, 2022 MW | Dec. 31, 2021 NUMBER GW MW | Dec. 31, 2020
SKGR Energy Single Member SA | Greece | Plenitude |  |  |
Other information |  |  |
Equity interest acquired (as a percent) | 100.00% |  |
Power generating capacity, existing or in advanced development | 800 |  |
Corazon I Solar plant | Texas | Plenitude |  |  |
Other information |  |  |
Power generating capacity, existing or in advanced development | 266 |  |
Energia Eolica Boreas SLU | Plenitude |  |  |
Other information |  |  |
Equity interest acquired (as a percent) | 100.00% |  |
Power generating capacity, existing or in advanced development | 104.5 |  |
Export LNG Ltd | Exploration & Production |  |  |
Other information |  |  |
Equity interest acquired (as a percent) | 100.00% |  |
Aldro Energa Y Soluciones SLU |  |  |
Other information |  |  |
Equity interest acquired (as a percent) |  | 100.00% |
FRI-EL Biogas Holding SpA |  |  |
Other information |  |  |
Equity interest acquired (as a percent) |  | 100.00% |
Portfolio Of Thirteen Onshore Wind Facilities |  |  |
Other information |  |  |
Power generating capacity, existing or in advanced development |  | 315 |
Portfolio Of Nine Renewable Energy Projects |  |  |
Other information |  |  |
Power generating capacity, existing or in advanced development | GW |  | 0.9 |
Power generating capacity, projected |  | 234 |
Number of wind farms in operation | NUMBER |  | 3 |
Number of wind farms under construction | NUMBER |  | 1 |
Number of photovoltaic projects | NUMBER |  | 5 |
Finproject SpA |  |  |
Other information |  |  |
Equity interest acquired (as a percent) |  | 60.00% | 40.00%
Be Power |  |  |
Other information |  |  |
Equity interest acquired (as a percent) |  | 100.00% |

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