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ADVANCES FROM CLIENTS (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
ADVANCES FROM CLIENTS    
Advances, Current R$ 138,690 R$ 1,653,122
Advances, Non-current 86,612 213,921
Advances 225,302 1,867,043
PROINFA    
ADVANCES FROM CLIENTS    
Advances, Current   921,597
PROCEL.    
ADVANCES FROM CLIENTS    
Advances, Current 3,513 564,625
Advance Payments from Customers    
ADVANCES FROM CLIENTS    
Advances, Current R$ 135,177 R$ 166,900