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Schedule of financial covenants (Details) | 12 Months Ended
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Dec. 31, 2021
Debentures Four [Member] | Copel geracaoe transmissao SA [member] |  |
IfrsStatementLineItems [Line Items] |  |
Contract | 7th issue of Debentures |
Changes in Actuarial Assets | Copel geracaoe transmissao SA [member] |  |
IfrsStatementLineItems [Line Items] |  |
Company name | Copel GeT |
Contract | 4th issue of Debentures |
Debentures 5 [Member] | Copel geracaoe transmissao SA [member] |  |
IfrsStatementLineItems [Line Items] |  |
Contract | 3rd issue of Debentures |
Sensitivity Analysis | Copel geracaoe transmissao SA [member] |  |
IfrsStatementLineItems [Line Items] |  |
Contract | 5th issue of Debentures |
Sensitivity Analysis | CCEE liabilities |  |
IfrsStatementLineItems [Line Items] |  |
Company name | Copel DIS |
Contract | 3rd issue of Debentures |
Sensitivity Analysis | Ventos de Santo Uriel |  |
IfrsStatementLineItems [Line Items] |  |
Company name | Cutia |
Contract | 1st issue of Debentures |
Annual financial index | Debt service coverage ratio (a) | [1]
Limit | ≥ 1.2 |
Debentures Three [Member] | Copel geracaoe transmissao SA [member] |  |
IfrsStatementLineItems [Line Items] |  |
Contract | 6th issue of Debentures |
Debentures Three [Member] | CCEE liabilities |  |
IfrsStatementLineItems [Line Items] |  |
Contract | 4th issue of Debentures |
Debentures Foure One [Member] | CCEE liabilities |  |
IfrsStatementLineItems [Line Items] |  |
Contract | 5th issue of Debentures |
Debentures Five One [Member] | CCEE liabilities |  |
IfrsStatementLineItems [Line Items] |  |
Contract | 6th issue of Debentures |
Estimated Net Periodic Plan Costs (Gains) | Nova Asa Branca I |  |
IfrsStatementLineItems [Line Items] |  |
Company name | Nova Asa Branca I |
Estimated Net Periodic Plan Costs (Gains) | Nova Asa Branca III |  |
IfrsStatementLineItems [Line Items] |  |
Company name | Nova Asa Branca III |
Contract | 2nd issue of Debentures |
Annual financial index | Debt service coverage ratio |
Limit | ≥ 1.3 |
Estimated Net Periodic Plan Costs (Gains) | Nova Asa Branca II |  |
IfrsStatementLineItems [Line Items] |  |
Company name | Nova Asa Branca II |
Estimated Net Periodic Plan Costs (Gains) | Nova Eurus IV |  |
IfrsStatementLineItems [Line Items] |  |
Company name | Nova Eurus IV |
Estimated Net Periodic Plan Costs (Gains) | Ventos de Santo Uriel |  |
IfrsStatementLineItems [Line Items] |  |
Company name | Ventos de Santo Uriel |
Changes in Equity Attributable to Non-Controlling Shareholders | Debentures Six [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Company name | Copel |
Contract | 7th issue of Debentures |
Changes in Equity Attributable to Non-Controlling Shareholders | Debentures Four [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual financial index | Consolidated net debt / Consolidated EBITDA Debt service coverage ratio |
Limit | ≤ 3.5 ≥ 1.5 |
Changes in Equity Attributable to Non-Controlling Shareholders | Debentures Seven [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Contract | 8th issue of Debentures |
[1] | The variation in provisions for legal claims occurred due to the review of the assessment of the Company’s legal advisors, mainly in civil claims. The details of the actions are shown in Note 30.

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