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Related Party Transactions (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Entity Information [Line Items] |  |  |
Assets | R$ 55,819,074 | R$ 49,703,700 |
Revenue | 21,479,468 | 20,535,341 | R$ 20,976,216
Fees And Social Security Charges [Member] | Key Management Staff [Member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities |  |  |
Revenue |  |  |
Cost/ expenses | (22,709) | (19,734) | (19,418)
Pension And Healthcare Plans [Member] | Key Management Staff [Member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities |  |  |
Revenue |  |  |
Cost/ expenses | (1,641) | (1,384) | (1,422)
State Of Parana [Member] | Dividends Payable [Member] | Entities With Significant Influence [Member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities | 168,032 | 109,777 |
Revenue |  |  |
Cost/ expenses |  |  |
State Of Parana [Member] | CRC Transfer [member] | Entities With Significant Influence [Member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities |  |  |
Revenue |  |  | 253,990
Cost/ expenses |  |  |
State Of Parana [Member] | Energia Solidaria Program [Member] | Entities With Significant Influence [Member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 22,314 | 9,735 |
Liabilities |  |  |
Revenue |  |  |
Cost/ expenses |  |  |
State Of Parana [Member] | Tarifa Rural Noturna Program [Member] | Entities With Significant Influence [Member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  | 8,353 |
Liabilities |  |  |
Revenue |  |  |
Cost/ expenses |  |  |
State Of Parana [Member] | Employees Transferred [Member] | Entities With Significant Influence [Member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 382 | 305 |
Liabilities |  |  |
Revenue |  |  |
Cost/ expenses |  |  |
State Of Parana [Member] | Meteorological Systemof Parana Simepar [Member] | Entities With Significant Influence [Member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities | 702 | 298 |
Revenue |  |  |
Cost/ expenses | (8,748) | (7,422) | (10,759)
BNDES And BNDESPAR [member] | Dividends Payable [Member] | Entities With Significant Influence [Member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities | 212,455 | 76,684 |
Revenue |  |  |
Cost/ expenses |  |  |
BNDES And BNDESPAR [member] | Financing [Member] | Entities With Significant Influence [Member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities | 1,939,427 | 2,097,606 |
Revenue |  |  |
Cost/ expenses | (180,030) | (190,881) | (174,210)
BNDES And BNDESPAR [member] | Debentures Wind Farms [Member] | Entities With Significant Influence [Member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities | 200,242 | 216,811 |
Revenue |  |  |
Cost/ expenses | (25,036) | (28,085) | (32,249)
Sanepar [Member] | Entities With Significant Influence [Member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 19 |  |
Liabilities | 82 | 448 |
Revenue | 68 |  |
Cost/ expenses | (2,384) | (2,088) | (2,015)
Use Water Eithdrawn From Plants Reservoirs [Member] | Entities With Significant Influence [Member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities |  |  |
Revenue |  | 485 | 477
Cost/ expenses |  |  |
Voltalia Sao Miguel Do Gostoso [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 10 |  |
Liabilities |  |  |
Revenue | 115 | 112 | 102
Cost/ expenses |  |  |
Voltalia Sao Miguel Do Gostoso [Member] | Dividends [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  | 1,032 |
Liabilities |  |  |
Revenue |  |  |
Cost/ expenses |  |  |
Caiua Transmissora De Energia [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 326 | 313 |
Liabilities | 228 | 1,400 |
Revenue | 3,860 | 3,619 | 3,268
Cost/ expenses | (21,103) | (19,749) | (17,429)
Caiua Transmissora De Energia [Member] | Dividends [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 2,737 | 5,486 |
Liabilities |  |  |
Revenue |  |  |
Cost/ expenses |  |  |
Integracao Maranhense Transmissora [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities | 49 | 120 |
Revenue |  |  |
Cost/ expenses | (3,255) | (2,624) | (2,250)
Integracao Maranhense Transmissora [Member] | Dividends [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 739 | 6,885 |
Liabilities |  |  |
Revenue |  |  |
Cost/ expenses |  |  |
Matrincha Transmissora De Energia [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities | 235 | 1,355 |
Revenue |  |  |
Cost/ expenses | (17,326) | (15,751) | (13,185)
Matrincha Transmissora De Energia [Member] | Dividends [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 14,022 | 41,577 |
Liabilities |  |  |
Revenue |  |  |
Cost/ expenses |  |  |
Guaraciaba Transmissora De Energia [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities | 111 | 671 |
Revenue |  |  |
Cost/ expenses | (8,938) | (7,191) | (6,067)
Guaraciaba Transmissora De Energia [Member] | Dividends [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 44,882 | 50,137 |
Liabilities |  |  |
Revenue |  |  |
Cost/ expenses |  |  |
Paranaiba Transmissora De Energia [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities | 155 | 869 |
Revenue |  |  |
Cost/ expenses | (10,950) | (10,322) | (8,995)
Paranaiba Transmissora De Energia [Member] | Dividends [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 8,360 | 5,400 |
Liabilities |  |  |
Revenue |  |  |
Cost/ expenses |  |  |
Cantareira Transmissora De Energia [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities | 119 | 660 |
Revenue |  |  |
Cost/ expenses | (8,736) | (8,042) | (6,435)
Cantareira Transmissora De Energia [Member] | Dividends [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 10,421 | 9,254 |
Liabilities |  |  |
Revenue |  |  |
Cost/ expenses |  |  |
Mata De Santa Genebra Transmissao [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 2,180 | 3,236 |
Liabilities | 259 | 1,401 |
Revenue | 13,653 | 19,318 | 18,795
Cost/ expenses | (19,778) | (17,427) | (12,390)
Mata De Santa Genebra Transmissao [Member] | Dividends [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 13,837 | 13,333 |
Liabilities |  |  |
Revenue |  |  |
Cost/ expenses |  |  |
Solar Parana [Member] | Dividends [Member] | Joint ventures [member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  | 48 |
Liabilities |  |  |
Revenue |  |  |
Cost/ expenses |  |  |
Dona Francisca Energetica S A [Member] | Associates [member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 14 | 15 |
Liabilities | 1,356 | 1,356 |
Revenue | 177 | 174 | 164
Cost/ expenses | (15,345) | (16,089) | (16,239)
Dona Francisca Energetica S A [Member] | Dividends [Member] | Associates [member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 514 | 852 |
Liabilities |  |  |
Revenue |  |  |
Cost/ expenses |  |  |
Fozdo Chopim Energetica Ltda [Member] | Associates [member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 312 | 302 |
Liabilities |  |  |
Revenue | 3,705 | 3,493 | 3,010
Cost/ expenses |  |  |
Administrative Property Rental [Member] | Other related parties [member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities | 120,451 | 102,410 |
Revenue |  |  |
Cost/ expenses | (10,091) | (10,713) | (6,827)
Pension And Healthcare Plans [Member] | Other related parties [member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities | 1,484,243 | 1,070,037 |
Revenue |  |  |
Cost/ expenses |  |  |
Lactec [Member] | Other related parties [member] |  |  |
Entity Information [Line Items] |  |  |
Assets | 3 | 3 |
Liabilities | 323 | 1,131 |
Revenue | 462 | 645 | 594
Cost/ expenses | (5,706) | (5,004) | (3,900)
Tecpa [Member] | Other related parties [member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities |  |  |
Revenue | 2,030 | 2,021 | 2,014
Cost/ expenses |  |  |
Celepa [Member] | Other related parties [member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities |  |  |
Revenue | 1,113 | 719 |
Cost/ expenses | (26) | (11) | (8)
Assembleia Legislativa Do Parana [Member] | Other related parties [member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities |  |  |
Revenue | 319 | 300 |
Cost/ expenses |  |  |
Portos Do Parana [Member] | Other related parties [member] |  |  |
Entity Information [Line Items] |  |  |
Assets |  |  |
Liabilities |  |  |
Revenue | 5,070 | 5,552 | 3,094
Cost/ expenses |  |  |

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