v3.26.1
REGULATORY FEES (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Aug. 31, 2020
REGULATORY FEES      
Current R$ 886,565 R$ 820,067  
Non-current 688,574 942,348  
Total R$ 1,575,139 1,762,415  
Economic value added by the concessionaire Percentage 1.00%   30.00%
Value of investments made by concessionaires and permit-holders percentage 2.50%    
Value of investments made by concessionaires and permit-holders limited to annual revenue percentage 3.00%    
Research and Development - R&D and Energy Efficiency - EE      
REGULATORY FEES      
Current R$ 517,261 455,880  
Non-current 688,574 942,348  
CDE Quota      
REGULATORY FEES      
Current 159,475 127,734  
Economic value added by the concessionaire Percentage     0.12%
RGR Quota      
REGULATORY FEES      
Current 10,290 125,103  
Compensation for the Use of Water Resources      
REGULATORY FEES      
Current 149,006 45,441  
PROINFA Quota      
REGULATORY FEES      
Current 32,905 43,643  
Electricity Service Inspection Fee      
REGULATORY FEES      
Current R$ 17,628 R$ 22,266  
Research and Development Projects      
REGULATORY FEES      
Economic value added by the concessionaire Percentage 0.40%   0.28%
Fundo Nacional de Desenvolvimento Científico e Tecnológico (FNDCT)      
REGULATORY FEES      
Economic value added by the concessionaire Percentage 0.40%    
Empresa de Pesquisa Energética (EPE)      
REGULATORY FEES      
Economic value added by the concessionaire Percentage 0.20%