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Property, Plant and Equipment (Details 5)
R$ in Thousands
 12 Months Ended
Dec. 31, 2024
BRL (R$)
Wind Power Assets [Member] | Sao Bento Complex [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 8.17%
RV/BV-1 85.98%
RV/BV-1 (5% Variation) 81.73%
RV/BV-1 (10% Variation) 77.66%
Impairment Risk R$ 0
Wind Power Assets [Member] | Brisa I Complex [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 8.17%
RV/BV-1 76.93%
RV/BV-1 (5% Variation) 72.69%
RV/BV-1 (10% Variation) 68.61%
Impairment Risk R$ 0
Wind Power Assets [Member] | Brisa I I Complex [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 8.17%
RV/BV-1 70.38%
RV/BV-1 (5% Variation) 65.45%
RV/BV-1 (10% Variation) 60.73%
Impairment Risk R$ 0
Wind Power Assets [Member] | Bento Miguel Complex [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 8.17%
RV/BV-1 49.46%
RV/BV-1 (5% Variation) 45.05%
RV/BV-1 (10% Variation) 40.87%
Impairment Risk R$ 0
Wind Power Assets [Member] | Cutia Complex [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 8.17%
RV/BV-1 39.32%
RV/BV-1 (5% Variation) 35.53%
RV/BV-1 (10% Variation) 31.92%
Impairment Risk R$ 0
Wind Power Assets [Member] | Jandaira Complex [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 5.29%
RV/BV-1 43.28%
RV/BV-1 (5% Variation) 39.34%
RV/BV-1 (10% Variation) 35.58%
Impairment Risk R$ 0
Wind Power Assets [Member] | Vilas Complex [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 4.94%
RV/BV-1 59.50%
RV/BV-1 (5% Variation) 54.94%
RV/BV-1 (10% Variation) 50.57%
Impairment Risk R$ 0
Wind Power Assets [Member] | Aventura Complex [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 4.66%
RV/BV-1 47.92%
RV/BV-1 (5% Variation) 43.97%
RV/BV-1 (10% Variation) 40.17%
Impairment Risk R$ 0
Wind Power Assets [Member] | Santa Rosa E Novo Mundo Complex [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 4.66%
RV/BV-1 151.84%
RV/BV-1 (5% Variation) 145.11%
RV/BV-1 (10% Variation) 138.65%
Impairment Risk R$ 0
Hydric Assets [Member] | Foz Do Areia [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 5.43%
RV/BV-1 78.05%
RV/BV-1 (5% Variation) 72.30%
RV/BV-1 (10% Variation) 66.81%
Impairment Risk R$ 0
Hydric Assets [Member] | Segredo [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 5.43%
RV/BV-1 54.22%
RV/BV-1 (5% Variation) 49.51%
RV/BV-1 (10% Variation) 45.01%
Impairment Risk R$ 0
Hydric Assets [Member] | Caxias [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 5.43%
RV/BV-1 52.17%
RV/BV-1 (5% Variation) 47.62%
RV/BV-1 (10% Variation) 43.27%
Impairment Risk R$ 0
Hydric Assets [Member] | Baixo Iguaçu [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 5.43%
RV/BV-1 3.52%
RV/BV-1 (5% Variation) 1.05%
RV/BV-1 (10% Variation) (1.33%)
Impairment Risk R$ 8,189
Hydric Assets [Member] | Maua [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 5.43%
RV/BV-1 126.24%
RV/BV-1 (5% Variation) 121.53%
RV/BV-1 (10% Variation) 116.98%
Impairment Risk R$ 0
Hydric Assets [Member] | Bela Vista [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 7.66%
RV/BV-1 96.08%
RV/BV-1 (5% Variation) 89.39%
RV/BV-1 (10% Variation) 83.08%
Impairment Risk R$ 0
Hydric Assets [Member] | Elejor [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Discount rate 8.00%
RV/BV-1 27.83%
RV/BV-1 (5% Variation) 24.65%
RV/BV-1 (10% Variation) 21.59%
Impairment Risk R$ 0