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1 Operations (Details 2) | 12 Months Ended
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Dec. 31, 2019
Dona Francisca Energetica S.A. [Member] |  |
Disclosure of associates [line items] |  |
Associate name | Dona Francisca Energética S.A. |
Headquarters | Agudo/RS |
Main activity | Production of electricity |
Interest | 23.0303% |
Investor | Copel |
Foz do Chopim Energetica Ltda. [Member] |  |
Disclosure of associates [line items] |  |
Associate name | Foz do Chopim Energética Ltda. |
Headquarters | Curitiba/PR |
Main activity | Production of electricity |
Interest | 35.77% |
Investor | Copel GeT |
Carbocampel S.A. [Member] |  |
Disclosure of associates [line items] |  |
Associate name | Carbocampel S.A. |
Headquarters | Figueira/PR |
Main activity | Coal exploration |
Interest | 49.00% |
Investor | Copel |
Copel Amec S/C Ltda. - in liquidation [Member] |  |
Disclosure of associates [line items] |  |
Associate name | Copel Amec S/C Ltda. - in liquidation |
Headquarters | Curitiba/PR |
Main activity | Services |
Interest | 48.00% |
Investor | Copel |
Sercomtel S.A. Telecomunicacoes [Member] |  |
Disclosure of associates [line items] |  |
Associate name | Sercomtel S.A. Telecomunicações | [1]
Headquarters | Londrina/PR | [1]
Main activity | Telecommunications | [1]
Interest | 45.00% | [1]
Investor | Copel | [1]
Domino Holdings Ltda. [Member] |  |
Disclosure of associates [line items] |  |
Associate name | Dominó Holdings Ltda. |
Headquarters | Curitiba/PR |
Main activity | Interests in companies |
Interest | 49.00% |
Investor | Copel Energia |
Estacao Osasco Desenvolvimento Lmobiliario S.A. [Member] |  |
Disclosure of associates [line items] |  |
Associate name | Estação Osasco Desenvolvimento Imobiliário S.A. | [2]
Headquarters | São Paulo/SP | [2]
Main activity | Incorporation of real estate projects | [2]
Interest | 18.78% | [2]
Investor | UEG | [2]
[1] | Investment reduced to zero due to the impairment tests.
[2] | Pre-operating stage.

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