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Loans and Financing (Details) - BRL (R$) R$ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Loans and financing | R$ 4,618,794 | R$ 5,343,217 | R$ 4,650,363
Gross debt | 4,647,195 | 5,387,977 |
Transaction cost | (28,401) | (44,760) |
Net debt | 4,618,794 | 5,343,217 |
Loans and financing, current | 1,231,205 | 675,980 |
Non-current portion of non-current loans received | 3,387,589 | 4,667,237 |
Copel Ge T [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 1,671,679 | 2,294,611 |
Copel D I S [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 755,353 | 760,763 |
Itaú Unibanco S.A [Member] | Copel Ge T [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 1,036,260 | 1,039,097 |
Banco Do Brasil BNDES Transfer [Member] | Copel Ge T [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 37,507 | 49,263 |
BNDES [Member] | Copel Ge T [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 597,912 | 1,206,251 |
BNDES [Member] | Copel D I S [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 0 | 3,919 |
BNDES [Member] | Brisa Wind Complex [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 56,551 | 63,572 |
BNDES [Member] | São Bento Wind Complex [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 116,679 | 136,448 |
BNDES [Member] | Cutia [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 497,199 | 521,972 |
BNDES [Member] | Costa Oeste Transmissora [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 8,657 | 10,778 |
BNDES [Member] | Marumbi Transmissora [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 11,972 | 15,267 |
Banco Do Brasil [Member] | Copel D I S [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 751,522 | 751,096 |
Caixa Economica Federal [Member] | Copel D I S [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 3,831 | 5,748 |
Banco Do Nordeste Do Brasil [Member] | Jandaíra Wind Complex [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 178,407 | 191,532 |
Banco Do Nordeste Do Brasil [Member] | Vilas Wind Complex [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 505,155 | 524,162 |
Banco Do Nordeste Do Brasil [Member] | Aventura Wind Complex [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | 313,777 | 324,309 |
Banco Do Nordeste Do Brasil [Member] | SRMN Wind Complex [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Gross debt | R$ 531,766 | R$ 544,563 |

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