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v3.25.1

Property, Plant and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2024
Disclosure of detailed information about property, plant and equipment [abstract] |
Schedule of property plant and equipment |
| Cost | Accumulated depreciation | 12.31.2024 | Cost | Accumulated depreciation | 12.31.2023
In service |  |  |  |  |  |
Reservoirs, dams and aqueducts | 6,869,100 |  | (4,885,663) |  | 1,983,437 |  | 8,201,193 |  | (5,068,855) |  | 3,132,338 |
Machinery and equipment | 8,745,054 |  | (3,206,049) |  | 5,539,005 |  | 9,790,697 |  | (3,087,977) |  | 6,702,720 |
Buildings | 1,398,552 |  | (933,130) |  | 465,422 |  | 2,009,061 |  | (1,176,398) |  | 832,663 |
Land | 388,270 |  | (58,358) |  | 329,912 |  | 499,020 |  | (69,256) |  | 429,764 |
Vehicles | 12,811 |  | (10,673) |  | 2,138 |  | 13,056 |  | (11,120) |  | 1,936 |
Furniture and fixtures | 12,449 |  | (6,880) |  | 5,569 |  | 14,296 |  | (8,570) |  | 5,726 |
(-) Impairment (15.4) | — |  | — |  | — |  | (674,077) |  | — |  | (674,077) |
(-) Special Obligations | (19,223) |  | 681 |  | (18,542) |  | (6,877) |  | 510 |  | (6,367) |
| 17,407,013 |  | (9,100,072) |  | 8,306,941 |  | 19,846,369 |  | (9,421,666) |  | 10,424,703 |
In progress |  |  |  |  |  |
Cost | 224,635 |  | — |  | 224,635 |  | 415,597 |  | — |  | 415,597 |
(-) Impairment (15.4) | (14,879) |  | — |  | (14,879) |  | (14,879) |  | — |  | (14,879) |
| 209,756 |  | — |  | 209,756 |  | 400,718 |  | — |  | 400,718 |
| 17,616,769 |  | (9,100,072) |  | 8,516,697 |  | 20,247,087 |  | (9,421,666) |  | 10,825,421 |
Schedule of changes in property plant and equipment |
| Balance as of January 1, 2024 | Additions / Impairment | Depreciation | Write-offs or disposal | Transfers |  | Reclassification (a) | Balance as of December 31, 2024
In service |  |  |  |  |  |  |  |
Reservoirs, dams and aqueducts | 3,132,338 |  | — |  | (137,424) |  | (2,852) |  | 13,078 |  |  | (1,021,703) |  | 1,983,437 |
Machinery and equipment | 6,702,720 |  | 29,258 |  | (388,447) |  | (6,992) |  | 196,068 |  |  | (993,602) |  | 5,539,005 |
Buildings | 832,663 |  | — |  | (35,563) |  | (13,341) |  | 32,125 |  |  | (350,462) |  | 465,422 |
Land | 429,764 |  | — |  | (12,027) |  | (7,272) |  | 16,337 |  |  | (96,890) |  | 329,912 |
Vehicles | 1,936 |  | — |  | (489) |  | (8) |  | 701 |  |  | (2) |  | 2,138 |
Furniture and fixtures | 5,726 |  | — |  | (549) |  | (287) |  | 948 |  |  | (269) |  | 5,569 |
(-) Impairment (15.4) | (674,077) |  | (27,755) |  | — |  | — |  | — |  |  | 701,832 |  | — |
(-) Special Obligations | (6,367) |  | — |  | 470 |  | — |  | (12,703) |  |  | 58 |  | (18,542) |
| 10,424,703 |  | 1,503 |  | (574,029) |  | (30,752) |  | 246,554 |  |  | (1,761,038) |  | 8,306,941 |
In progress |  |  |  |  |  |  |  |
Cost | 415,597 |  | 142,584 |  | — |  | (1,482) |  | (244,677) |  |  | (87,387) |  | 224,635 |
(-) Impairment (15.4) | (14,879) |  | — |  | — |  | — |  | — |  |  | — |  | (14,879) |
| 400,718 |  | 142,584 |  | — |  | (1,482) |  | (244,677) |  |  | (87,387) |  | 209,756 |
| 10,825,421 |  | 144,087 |  | (574,029) |  | (32,234) |  | 1,877 |  |  | (1,848,425) |  | 8,516,697 |
(a) Reclassification to Assets classified as held for sale (Note 37).
| Balance as of January 1, 2023 | Additions / Impairment | Depreciation | Write-offs or disposal | Transfers | Business combination effects | Reclassification (a) | Balance as of December 31, 2023
In service |  |  |  |  |  |  |  |
Reservoirs, dams and aqueducts | 3,274,774 |  | — |  | (142,902) |  | (14) |  | 480 |  | — |  | — |  | 3,132,338 |
Machinery and equipment | 5,890,366 |  | — |  | (389,646) |  | (2,475) |  | 283,777 |  | 1,139,428 |  | (218,730) |  | 6,702,720 |
Buildings | 841,252 |  | — |  | (36,707) |  | (517) |  | 37,804 |  | — |  | (9,169) |  | 832,663 |
Land | 451,524 |  | — |  | (10,173) |  | (647) |  | 4,109 |  | — |  | (15,049) |  | 429,764 |
Vehicles | 2,342 |  | — |  | (458) |  | (1) |  | 53 |  | — |  | — |  | 1,936 |
Furniture and fixtures | 6,136 |  | — |  | (603) |  | (393) |  | 689 |  | 5 |  | (108) |  | 5,726 |
(-) Impairment (15.4) | (785,205) |  | 174,500 |  | — |  | — |  | (171,504) |  | — |  | 108,132 |  | (674,077) |
(-) Special Obligations | (418) |  | — |  | 246 |  | — |  | (6,297) |  | — |  | 102 |  | (6,367) |
| 9,680,771 |  | 174,500 |  | (580,243) |  | (4,047) |  | 149,111 |  | 1,139,433 |  | (134,822) |  | 10,424,703 |
In progress |  |  |  |  |  |  |  |
Cost | 575,080 |  | 162,540 |  | — |  | (6,411) |  | (321,101) |  | 47,675 |  | (42,186) |  | 415,597 |
(-) Impairment (15.4) | (186,383) |  | — |  | — |  | — |  | 171,504 |  | — |  | — |  | (14,879) |
| 388,697 |  | 162,540 |  | — |  | (6,411) |  | (149,597) |  | 47,675 |  | (42,186) |  | 400,718 |
| 10,069,468 |  | 337,040 |  | (580,243) |  | (10,458) |  | (486) |  | 1,187,108 |  | (177,008) |  | 10,825,421 |
(a) Reclassification to Assets classified as held for sale (Note 37)
Schedule of joint operations property plant and equipment |
Joint operations | Share Copel GeT (%) | Annual average depreciation rate (%) | 12.31.2024 | 12.31.2023
HPP Gov. Jayme Canet Júnior (Mauá) | 51.0 | % |  |  |
In service |  |  | 860,522 |  | 859,888 |
(-) Accumulated depreciation |  | 2.74 | % | (336,843) |  | (313,253) |
In progress |  |  | 18,112 |  | 20,447 |
|  |  | 541,791 |  | 567,082 |
HPP Baixo Iguaçu | 30.0 | % |  |  |
In service |  |  | 701,346 |  | 697,225 |
(-) Accumulated depreciation |  | 3.30 | % | (132,481) |  | (110,039) |
In progress |  |  | 34,433 |  | 42,989 |
|  |  | 603,298 |  | 630,175 |
|  |  | 1,145,089 |  | 1,197,257 |
Schedule of impairment of property plant and equipment |
| Balance as of January 1, 2023 | Impairment / Reversal | Transfer | Balance as of December 31, 2023 | Impairment / Reversal | Reclassification | Balance as of December 31, 2024
In service |  |  |  |  |  |  |
HPP Colíder | (632,559) |  | 133,653 |  | — |  | (498,906) |  | — |  | 498,906 |  | — |
UEGA | (108,132) |  | 108,132 |  | — |  | — |  | — |  | — |  | — |
Power plants in Paraná | (44,514) |  | 40,847 |  | (171,504) |  | (175,171) |  | (27,755) |  | 202,926 |  | — |
| (785,205) |  | 282,632 |  | (171,504) |  | (674,077) |  | (27,755) |  | 701,832 |  | — |
In progress |  |  |  |  |  |  |
Consórcio Tapajós (a) | (14,879) |  | — |  | — |  | (14,879) |  | — |  | — |  | (14,879) |
Power plants in Paraná | (171,504) |  | — |  | 171,504 |  | — |  | — |  | — |  | — |
| (186,383) |  | — |  | 171,504 |  | (14,879) |  | — |  | — |  | (14,879) |
| (971,588) |  | 282,632 |  | — |  | (688,956) |  | (27,755) |  | 701,832 |  | (14,879) |
(a) Project under development
Schedule of impairment risk |
Cash-generating units | Discount rate | RV/BV-1 | RV/BV-1 (5% Variation) | RV/BV-1 (10% Variation) | Impairment Risk
Wind power Assets |  |  |  |  |
São Bento Complex (a) | 8.17 | % | 85.98 | % | 81.73 | % | 77.66 | % | — |
Brisa I Complex (b) | 8.17 | % | 76.93 | % | 72.69 | % | 68.61 | % | — |
Brisa II Complex (c) | 8.17 | % | 70.38 | % | 65.45 | % | 60.73 | % | — |
Bento Miguel Complex (d) | 8.17 | % | 49.46 | % | 45.05 | % | 40.87 | % | — |
Cutia Complex (e) | 8.17 | % | 39.32 | % | 35.53 | % | 31.92 | % | — |
Jandaíra Complex (f) | 5.29 | % | 43.28 | % | 39.34 | % | 35.58 | % | — |
Vilas Complex (g) | 4.94 | % | 59.50 | % | 54.94 | % | 50.57 | % | — |
Aventura Complex (h) | 4.66 | % | 47.92 | % | 43.97 | % | 40.17 | % | — |
Santa Rosa e Mundo Novo Complex (i) | 4.66 | % | 151.84 | % | 145.11 | % | 138.65 | % | — |
Hydric Assets |  |  |  |  |
Foz do Areia | 5.43 | % | 78.05 | % | 72.30 | % | 66.81 | % | — |
Segredo | 5.43 | % | 54.22 | % | 49.51 | % | 45.01 | % | — |
Caxias | 5.43 | % | 52.17 | % | 47.62 | % | 43.27 | % | — |
Baixo Iguaçu | 5.43 | % | 3.52 | % | 1.05 | % | -1.33 | % | 8,189 |
Mauá | 5.43 | % | 126.24 | % | 121.53 | % | 116.98 | % | — |
Bela Vista | 7.66 | % | 96.08 | % | 89.39 | % | 83.08 | % | — |
Elejor | 8.00 | % | 27.83 | % | 24.65 | % | 21.59 | % | — |
(a) GE Boa Vista, GE Farol, GE Olho D’Água e GE São Bento do Norte wind farms. (b) Nova Asa Branca I, Nova Asa Branca II, Nova Asa Branca III e Nova Eurus IV wind farms. (c) Santa Maria, Santa Helena e Ventos de Santo Uriel wind farms. (d) São Bento do Norte I, São Bento do Norte II, São Bento do Norte III, São Miguel I, São Miguel II and GE São Miguel III wind farms. (e) Cutia, Guajiru, Jangada, Maria Helena, Potiguar, Esperança e Paraíso dos Ventos wind farms. (f) Jandaíra I, Jandaíra II, Jandaíra III e Jandaíra IV wind farms. (g) Potiguar B61, Potiguar B141, Potiguar B142, Potiguar B143 e Ventos de Vila Paraíba IV wind farms. (h) Aventura II, Aventura III, Aventura IV, Aventura V wind farms. (i) Santa Rosa e Mundo Novo - SRMN: SRMN I, SRMN II, SRMN III, SRMN IV e SRMN V wind farms.
Schedule of average depreciation rates |
Depreciation rates (%) | 12.31.2024 | 12.31.2023 | 12.31.2022
Average generation segment rates |  |  |
General equipment | 6.06 |  | 6.24 |  | 6.25 |
Machinery and equipment | 3.29 |  | 3.87 |  | 3.68 |
Generations | 3.40 |  | 3.42 |  | 3.42 |
Reservoirs, dams and ducts | 2.26 |  | 2.64 |  | 2.67 |
Hydraulic turbines | 2.77 |  | 2.88 |  | 2.89 |
Wind power plant unit | 4.85 |  | 4.94 |  | 4.94 |
Buildings | 2.79 |  | 3.05 |  | 3.07 |
Average rates for central government assets |  |  |
Buildings | 3.34 |  | 3.33 |  | 3.33 |
Machinery and office equipment | 12.07 |  | 6.25 |  | 6.25 |
Furniture and fixtures | 6.26 |  | 6.27 |  | 6.25 |
Vehicles | 14.29 |  | 14.29 |  | 14.29 |

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