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INVESTMENTS - Business Combination - Retiro Baixo Energia (Details) - BRL (R$) R$ in Thousands |  |  | 2 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Nov. 22, 2023 | Jan. 01, 2023 | Dec. 31, 2023 | Dec. 31, 2023
Business combinations |  |  |  |
Proportion of ownership interest in joint venture |  |  |  | 50.38%
Retiro Baixo Energtica S.A. |  |  |  |
Business combinations |  |  |  |
Control of acquired, percentage | 51.00% |  |  |
Percentage of ownership interest held prior to acquisition | 49.00% |  |  |
Cash transferred | R$ 222,306 |  |  |
Premium |  |  |  |
Remeasurement of shareholding previously held | R$ 44,058 |  |  |
Increase in revenue |  | R$ 68,842 |  |
Increase in profit |  | R$ 28,693 |  |
Revenue since acquisition date |  |  | R$ 14,373 |
Profit/Loss since acquisition date |  |  | R$ 4,377 |
Furnas | Retiro Baixo Energtica S.A. |  |  |  |
Business combinations |  |  |  |
Control of acquired, percentage | 51.00% |  |  |
Proportion of ownership interest in joint venture | 49.00% |  |  |
Furnas | Retiro Baixo Energtica S.A. |  |  |  |
Business combinations |  |  |  |
Percentage of equity interest /Percentage of participation | 100.00% |  |  |

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