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42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 3) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
NET CASH GENERATED IN OPERATING ACTIVITIES | R$ 3,940,844 |  |
CASH FLOWS FROM INVESTMENT ACTIVITIES |  |  |
Financial investments | (48,238) |  |
Additions in investments | (72,439) |  |
Capital reduction of investees | 228 |  |
Additions to property, plant and equipment | (226,325) |  |
Additions to intangible assets | (10,225) |  |
NET CASH USED IN INVESTING ACTIVITIES | (1,667,571) |  |
CASH FLOWS FROM FINANCING ACTIVITIES |  |  |
Dividends and interest on own capital paid | (626,357) |  |
NET CASH GENERATED FROM (USED IN) FINANCING ACTIVITIES | (1,715,113) |  |
Cash and cash equivalents at the beginning of the period | 2,941,727 |  |
Cash and cash equivalents at the end of the period | 3,222,768 | R$ 2,941,727 |
Companhia Paranaense de Energia - Copel [member] |  |  |
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
NET CASH GENERATED IN OPERATING ACTIVITIES | 761,050 | 688,443 | R$ 653,230
CASH FLOWS FROM INVESTMENT ACTIVITIES |  |  |
Financial investments | 5,349 | 115,376 | (124,254)
Loans and financing granted to related parties | (40,000) | (24,410) | (192,445)
Receipt of loans and financing granted to related parties | (7,015) | 24,512 | 560,877
Additions in investments | (68,127) | (271,968) | (608,934)
Capital reduction of investees | 228 |  | 45,000
Additions to property, plant and equipment | (1,800) | (285) | (267)
Additions to intangible assets | (1,045) | (271) | (3)
NET CASH USED IN INVESTING ACTIVITIES | (98,380) | (157,046) | (320,026)
CASH FLOWS FROM FINANCING ACTIVITIES |  |  |
Issue of Debentures |  | 500,000 | 600,000
Issue of loans with related parties | 280,000 | 48,000 |
Amortization of principal - loans and financing | (38,500) | (115,500) | (77,000)
Amortization of principal - debentures | (300,000) | (853,400) | (333,300)
Amortization of loans obtained from related parties |  | (48,000) |
Amortization of principal - Lease liabilities | (329) | (141) |
Dividends and interest on own capital paid | (586,445) | (352,055) | (264,734)
NET CASH GENERATED FROM (USED IN) FINANCING ACTIVITIES | (645,274) | (821,096) | (75,034)
Changes in cash and cash equivalents | 17,396 | (289,699) | 258,170
Cash and cash equivalents at the beginning of the period | 25,304 | 315,003 | 56,833
Cash and cash equivalents at the end of the period | R$ 42,700 | R$ 25,304 | R$ 315,003

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