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Trade Accounts Receivable (Details 1) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
IfrsStatementLineItems [Line Items] |  |  |
Expected credit losses, beginning balance | R$ 271,943 | R$ 304,601 | R$ 365,551
Additions/ (Reversals) | 107,296 | 121,756 | 182,241
Write offs | (86,519) | (154,414) | (243,302)
Reclassification | (10,338) |  | 111
Expected credit losses, ending balance | 282,382 | 271,943 | 304,601
Electricity Sales To Final Customers And Charges For Use Of The System Copel D I S [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Expected credit losses, beginning balance | 119,538 | 154,083 | 212,327
Additions/ (Reversals) | 99,685 | 114,718 | 180,150
Write offs | (85,356) | (149,263) | (238,394)
Reclassification |  |  |
Expected credit losses, ending balance | 133,867 | 119,538 | 154,083
Electricity Sales To Final Customers And Other Consumers Receivables [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Expected credit losses, beginning balance | 12,532 | 1,205 | 769
Additions/ (Reversals) | 2,792 | 11,327 | 436
Write offs |  |  |
Reclassification |  |  |
Expected credit losses, ending balance | 15,324 | 12,532 | 1,205
Energy Supply Concessionaires Permission Holder And Trading Companies [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Expected credit losses, beginning balance | 9,827 | 19,763 | 20,533
Additions/ (Reversals) | 4,533 | (5,353) | 1,224
Write offs | (834) | (4,583) | (1,994)
Reclassification |  |  |
Expected credit losses, ending balance | 13,526 | 9,827 | 19,763
C C E E [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Expected credit losses, beginning balance | 119,665 | 119,665 | 119,665
Additions/ (Reversals) |  |  |
Write offs |  |  |
Reclassification |  |  |
Expected credit losses, ending balance | 119,665 | 119,665 | 119,665
Telecommunications [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Expected credit losses, beginning balance |  |  |
Additions/ (Reversals) |  |  | 3,042
Write offs |  |  | (3,153)
Reclassification |  |  | 111
Expected credit losses, ending balance |  |  |
Gas distribution [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Expected credit losses, beginning balance | 10,381 | 9,885 | 12,257
Additions/ (Reversals) | 286 | 1,064 | (2,611)
Write offs | (329) | (568) | 239
Reclassification | (10,338) |  |
Expected credit losses, ending balance |  | R$ 10,381 | R$ 9,885

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