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Insurance (Tables)
12 Months Ended
Dec. 31, 2024
Notes and other explanatory information [abstract]  
Schedule of insurance policies
PolicyEnd of termInsured amount
Operational risks - HPP Baixo Iguaçu05.31.20252,764,597 
Operational risks - HPP Governador Jayme Canet Junior01.21.20262,334,953 
Operational risks - Cutia and Bento Miguel03.29.20252,225,164 
Named Risks08.24.20251,989,267 
Operational risks - HPP Colíder12.01.20251,892,320 
Operational risks - Aventura e SRMN11.28.20251,221,932 
Operational risks - Brisa Potiguar11.28.20251,101,652 
Operational risks - Ventos de Serra do Mel II e IV11.28.20251,101,502 
Operational risks - Elejor 09.07.2025901,950 
Fire - owned and rented facilities 08.24.2025772,189