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Accounts Receivables - Concessions (Details 2) - Bonus From The Grant Of Concession Agreements Under The Quota System [Member] - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Disclosure of fair value measurement of assets [line items]    
Beginning Balance R$ 792,741 R$ 766,832
Transfers to electricity grid use charges - customers (91,737) (88,461)
Interest (Note 30.1) 120,800 114,370
End Balance R$ 821,804 R$ 792,741