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42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 5) - Companhia Paranaense de Energia - Copel [member] - BRL (R$) R$ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
Investments |  | R$ 18,652,792 | R$ 17,135,474
Copel Geracao e Transmissao [member] |  |  |
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
Investments |  | 10,732,734 | 9,749,705
Copel Distribuicao [member] |  |  |
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
Investments |  | 7,212,915 | 6,012,246
Copel Telecomunicacoes [member] |  |  |
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
Investments |  | 757,799 | 710,128
Copel TEL - Reclassification [member] |  |  |
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
Investments | [1] | (758,742) |
Copel Energia [member] |  |  |
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
Investments |  | 356,922 | 243,123
Compagas [member] |  |  |
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
Investments |  | 252,481 | 284,747
UEG Araucaria [member] |  |  |
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
Investments |  | 48,355 | 64,094
Other investments [member] |  |  |
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
Investments |  | R$ 50,328 | R$ 71,431
[1] | Reclassification to Assets classified as held for sale.

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