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Loans and Financing (Details 4) - Copel geracaoe transmissao SA [member]
 12 Months Ended
Dec. 31, 2022
B N D E S Finemn 8209891 Maua [Member]  
IfrsStatementLineItems [Line Items]  
Company Copel GeT
Contract BNDES Finem No. 820989.1 - Mauá
Annual financial index EBITDA /  Net financial results
Limit ≥ 1.3
Bancodo Brasiln 21020000 Maua [Member]  
IfrsStatementLineItems [Line Items]  
Contract Banco do Brasil No. 21/02000-0 - Mauá
Annual financial index EBITDA /  Net financial results
Limit ≥ 1.3
Commercial Papers [Member]  
IfrsStatementLineItems [Line Items]  
Contract Commercial paper
Annual financial index Debt service coverage ratio
Limit ≥ 1.5 ≤ 3.5
B N D E S Finemn 14205611 [Member]  
IfrsStatementLineItems [Line Items]  
Company Copel DIS
Contract BNDES Finem No. 14205611
Annual financial index Financial indebtedness / EBITDA
Limit ≤ 4.0
B N D E S Finemn 14212711 [Member]  
IfrsStatementLineItems [Line Items]  
Company Santa Maria
Contract BNDES Finem No. 14212711
Annual financial index Debt service coverage ratio
Limit ≥ 1.3
B N D E S Finemn 14212721 [Member]  
IfrsStatementLineItems [Line Items]  
Company Santa Helena
Contract BNDES Finem No. 14212721
Annual financial index Debt service coverage ratio
Limit ≥ 1.3
B N D E S Assignment Agreement [Member]  
IfrsStatementLineItems [Line Items]  
Company São Bento Energia, Investimento e Participações
Contract BNDES Assignment Agreement
Annual financial index Debt service coverage ratio
Limit ≥ 1.3
B N D E S Finemn 11211531 [Member]  
IfrsStatementLineItems [Line Items]  
Company GE Boa Vista S.A.
Contract BNDES Finem No. 11211531
B N D E S Finemn 11211521 [Member]  
IfrsStatementLineItems [Line Items]  
Company GE Farol S.A.
Contract BNDES Finem No. 11211521
B N D E S Finemn 11211551 [Member]  
IfrsStatementLineItems [Line Items]  
Company GE Olho D´Água S.A.
Contract BNDES Finem No. 11211551
B N D E S Finemn 11211541 [Member]  
IfrsStatementLineItems [Line Items]  
Company GE São Bento do Norte S.A.
Contract BNDES Finem No. 11211541
B N D E S Finemn 18204611 [Member]  
IfrsStatementLineItems [Line Items]  
Company Cutia
Contract BNDES Finem No. 18204611
Annual financial index Debt service coverage ratio (a) [1]
Limit ≥ 1.2
B N D E S Finemn 13212221 [Member]  
IfrsStatementLineItems [Line Items]  
Company Costa Oeste
Contract BNDES Finem No. 13212221
Annual financial index Debt service coverage ratio
Limit ≥ 1.3
B N D E S Finemn 14205851 [Member]  
IfrsStatementLineItems [Line Items]  
Company Marumbi
Contract BNDES Finem No. 14205851
Annual financial index Debt service coverage ratio
Limit ≥ 1.3
[1] financial ratio calculated based on the amounts of the consolidated financial statements of Cutia Empreendimentos Eólicos S.A. The contract establishes that, should the index be in the range between 1.10 and 1.20, the value of the funds invested in the Reserve Account must be complemented so that the total reaches the index of 1.20, within 2 days of the release of the financial statements.