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INVESTMENTS - Measured at fair value (Details) - BRL (R$) R$ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022
Investments recognized at fair value |  |
Shareholder amount | R$ 450,962 |
Fair value | R$ 1,104,381 | R$ 1,761,258
AES TIET ENERGIA S/A |  |
Investments recognized at fair value |  |
Percentage of participations for fair value investments | 0.53% |
Shareholder amount | R$ 11,551 |
Fair value | R$ 38,990 | 383,958
Number of shares transferred | 24,662,112 |
Proceeds from sales of investments other than investments accounted for using equity method | R$ 300,878 |
Companhia Energtica do Cear - COELCE |  |
Investments recognized at fair value |  |
Percentage of participations for fair value investments | 7.06% |
Shareholder amount | R$ 76,658 |
Fair value | R$ 193,330 | 200,391
Energisa Holding |  |
Investments recognized at fair value |  |
Percentage of participations for fair value investments | 1.16% |
Shareholder amount | R$ 57,144 |
Fair value | R$ 248,904 | 371,418
Auren Energia S.A. |  |
Investments recognized at fair value |  |
Percentage of participations for fair value investments | 0.05% |
Shareholder amount | R$ 3,114 |
Fair value | R$ 6,978 | 152,425
Number of shares transferred | 9,823,673 |
Proceeds from sales of investments other than investments accounted for using equity method | R$ 131,146 |
Centrais Eletricas de Santa Catarina - CELESC |  |
Investments recognized at fair value |  |
Percentage of participations for fair value investments | 10.75% |
Shareholder amount | R$ 266,636 |
Fair value | R$ 270,991 | 227,237
Companhia Paranaense de Energia - COPEL |  |
Investments recognized at fair value |  |
Fair value |  | 105,164
Equatorial Energia Par |  |
Investments recognized at fair value |  |
Percentage of participations for fair value investments | 0.99% |
Shareholder amount | R$ 16,075 |
Fair value | R$ 169,356 | 143,008
Energisa Mato Grosso - Distribuidora de Energia S.A. |  |
Investments recognized at fair value |  |
Fair value |  | 32,632
Rio Parapanema Energia |  |
Investments recognized at fair value |  |
Percentage of participations for fair value investments | 0.47% |
Shareholder amount | R$ 3,924 |
Fair value | R$ 11,524 | 11,899
Companhia Energetica de Brasilia - CEB |  |
Investments recognized at fair value |  |
Percentage of participations for fair value investments | 2.10% |
Shareholder amount | R$ 11,861 |
Fair value | R$ 25,039 | 16,330
CEEED |  |
Investments recognized at fair value |  |
Percentage of participations for fair value investments | 4.62% |
Fair value | R$ 68,575 |
Others |  |
Investments recognized at fair value |  |
Shareholder amount | 3,999 |
Fair value | R$ 70,694 | R$ 116,796
Others | Minimum |  |
Investments recognized at fair value |  |
Percentage of participations for fair value investments | 0.0019% |
Others | Maximum |  |
Investments recognized at fair value |  |
Percentage of participations for fair value investments | 0.13% |

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