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REGULATORY FEES (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
REGULATORY FEES    
Current R$ 765,619 R$ 996,610
Non-current 432,341 464,358
Total R$ 1,197,960 1,460,968
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%  
Concessionaires pay percentage 6.75%  
Economic value added by the concessionaire Percentage 1.00%  
Research and Development - R&D and Energy Efficiency - EE    
REGULATORY FEES    
Current R$ 461,631 583,855
Non-current 432,322 464,330
RGR Quota    
REGULATORY FEES    
Current 47,293 223,120
Non-current 19 28
Compensation for the Use of Water Resources    
REGULATORY FEES    
Current 120,274 122,029
CDE Quota    
REGULATORY FEES    
Current 80,057 28,448
PROINFA Quota    
REGULATORY FEES    
Current 37,786 23,753
Electricity Service Inspection Fee    
REGULATORY FEES    
Current R$ 18,578 R$ 15,405