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Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 3) - BRL (R$)
R$ in Thousands
 12 Months Ended
Jul. 01, 2024
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Cash flows from (used in) investing activities [abstract]        
Investment disposal R$ 261,355 R$ 47,066 R$ 58,132 R$ 0
Additions in investments   0 10,780 4,829
Additions to intangible   4,098,286 13,388 8,319
   Net cash used in investing activities from continuing operations    (6,348,127) (3,099,567) (2,216,994)
Net cash generated by investment activities from discontinued operations   608,713 (35,524) (558,002)
Cash flows from investing activities   (5,739,414) (3,135,091) (2,774,996)
Cash flow from financing activities        
 Capital increase    0 2,031,619 0
TransactionCostsInCapitalIncrease   0 14,941 0
Share buyback   50,044 0 0
Net cash used in financing activities   803,856 2,696,572 (1,922,041)
Cash and cash equivalents at the beginning of the period   5,634,623    
Cash and cash equivalents at the end of the period   4,161,939 5,634,623  
Consolidated [Member]        
Condensed Cash Flow Statements, Captions [Line Items]        
Net cash generated from operating activities   (183,674) 811,605 3,079,427
Cash flows from (used in) investing activities [abstract]        
Financial investments   15,832 (6,109) (5,636)
Loans and financing granted to related parties     (22,200) (236,024) (146,063)
Receipt of loans and financing granted to related parties     22,200 282,087 100,000
Investment disposal   2,066 14,533 0
Additions in investments   (613,150) (61,950) (4,829)
Additions to property, plant and equipment    (17) (1,659) (4,436)
Additions to intangible   (2,378) (1,742) (1,592)
   Net cash used in investing activities from continuing operations    (597,647) (10,864) (62,556)
Net cash generated by investment activities from discontinued operations   467,566 (35,000) 0
Cash flows from investing activities   (130,081) (45,864) (62,556)
Cash flow from financing activities        
Amortization of principal - loans and financing     0 0 (774,899)
Amortization of principal - debentures   0 0 (500,000)
Amortization of principal - Lease liabilities   (709) (512) (378)
 Capital increase    0 2,031,619 0
TransactionCostsInCapitalIncrease   0 (14,941) 0
Share buyback   (50,044) 0 0
Dividends and interest on capital paid   (1,586,565) (750,371) (2,167,769)
Net cash used in financing activities   (1,637,318) 1,265,795 (3,443,046)
Total effects on cash and cash equivalents   (1,951,073) 2,031,536 (426,175)
Cash and cash equivalents at the beginning of the period   2,231,413 199,877 626,052
Cash and cash equivalents at the end of the period   280,340 2,231,413 199,877
Change in cash and cash equivalents   R$ (1,951,073) R$ 2,031,536 R$ (426,175)