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Property, Plant and Equipment (Tables)
 12 Months Ended
Dec. 31, 2022
Property, plant and equipment [abstract]  
Schedule of property plant and equipment
             
    Accumulated     Accumulated  
  Cost depreciation 12.31.2022 Cost depreciation 12.31.2021
In service            
Reservoirs, dams and aqueducts  8,200,744 (4,925,970) 3,274,774  8,161,702 (4,776,639)  3,385,063
Machinery and equipment  8,951,061 (3,060,695) 5,890,366  8,409,689 (2,840,114)  5,569,575
Buildings  2,001,801 (1,160,549) 841,252  1,993,695 (1,125,862) 867,833
Land 510,681 (59,157) 451,524 508,164 (49,046) 459,118
Vehicles and aircraft 35,457 (33,115) 2,342 33,871 (32,756)  1,115
Furniture and fixtures 17,007 (10,871) 6,136 16,400 (10,966)  5,434
(-) Impairment (16.4) (785,205) - (785,205) (710,509) - (710,509)
(-) Special Obligations  (748) 330 (418)  (792) 290  (502)
  18,930,798 (9,250,027) 9,680,771  18,412,220 (8,835,093)  9,577,127
             
In progress            
Cost 575,080 - 575,080 752,846 - 752,846
(-) Impairment (16.4)  (186,383) -  (186,383)  (187,382) -  (187,382)
  388,697 - 388,697 565,464 - 565,464
  19,319,495 (9,250,027) 10,069,468  18,977,684 (8,835,093)  10,142,591
Schedule of changes in property plant and equipment
           
  Balance as of January 1, 2022 Additions /
Impairment		 Depreciation Loss on disposal Transfers Balance as of December 31, 2022
In service            
Reservoirs, dams and aqueducts 3,385,063  - (149,331) -  39,042 3,274,774
Machinery and equipment 5,569,575  - (333,396) (29,678)  683,865 5,890,366
Buildings  867,833  - (35,834) (333) 9,586  841,252
Land  459,118  - (10,111) (381) 2,898  451,524
Vehicles and aircraft 1,115  - (389) - 1,616  2,342
Furniture and fixtures 5,434  - (584) (111) 1,397  6,136
(-) Impairment (16.4) (710,509)  (74,696) - -  - (785,205)
(-) Special Obligations (502)  -  125 - (41) (418)
  9,577,127  (74,696) (529,520) (30,503)  738,363 9,680,771
In progress            
Cost  752,846  559,318 - (12,338) (724,746)  575,080
(-) Impairment (16.4) (187,382)  999 - -  - (186,383)
   565,464  560,317 - (12,338) (724,746)  388,697
  10,142,591  485,621 (529,520) (42,841)  13,617  10,069,468

 

                 
  Balance as of January 1, 2021 Additions /
Impairment		 Depreciation Loss on disposal Transfers Copel Telecom Disposal Other (b) Balance as of December 31, 2021
In service                
Reservoirs, dams and aqueducts 3,481,391  - (174,810)  2,147 76,335  - -  3,385,063
Machinery and equipment 5,647,220  - (375,430)  (26,345) 174,615 (605,042)  754,557  5,569,575
Buildings  872,575  - (38,629)  (506) 35,060 (667) - 867,833
Land  451,908  - (10,777)  (763) 18,848 (98) - 459,118
Vehicles and aircraft 1,892  - (835)  (68) 134  (8) -  1,115
Furniture and fixtures 6,816  - (1,079)  (46)  1,562  (1,819) -  5,434
(-) Impairment (16.4) (925,521)  215,012 - - -  - -  (710,509)
(-) Impairment Copel TEL (27,928) 1,989 - - - 25,939 - -
(-) Special Obligations (251)  - 89 -  (340)  - -  (502)
(-) Reclassification (a) (622,988)  - - - 41,293  581,695 - -
  8,885,114  217,001 (601,471)  (25,581) 347,507  -  754,557  9,577,127
In progress                
Cost  795,816  406,173 -  (42,655)  (335,975)  (70,513) - 752,846
(-) Impairment (16.4) (120,308)  (67,074) - - -  - -  (187,382)
(-) Impairment Copel TEL  (3,853) 3,103 - - -  750 - -
(-) Reclassification (a) (61,309)  - - - (8,454) 69,763 - -
   610,346  342,202 -  (42,655)  (344,429)  - - 565,464
  9,495,460  559,203 (601,471)  (68,236)  3,078  -  754,557  10,142,591
(a) Reclassification to Assets classified as held for sale (Note 39).
(b) Effects of acquisition of Vilas Complex (Note 1.2 of Financial Statements as of December 31, 2021)
Schedule of joint operations property plant and equipment
         
  Share Annual average     
Joint operations  Copel GeT (%) depreciation rate(%) 12.31.2022 12.31.2021
HPP Gov. Jayme Canet Júnior (Mauá) - Consórcio        
Energético Cruzeiro do Sul 51.0      
In service      859,882 859,926
(-) Accumulated depreciation   2.90 (288,728)  (263,792)
In progress      19,899  20,527
       591,053 616,661
HPP Baixo Iguaçu 30.0      
In service      693,487 692,395
(-) Accumulated depreciation   3.28 (87,278) (64,519)
In progress      55,863  56,027
       662,072 683,903
      1,253,125  1,300,564
Schedule of impairment balances
       
  Property, Plant and Equipment  
  Cost  Depreciation Impairment  Value in use
HPP Colíder  2,558,634 (320,171) (632,559) 1,605,904
UEGA 686,498 (384,810) (108,132) 193,556
Consórcio Tapajós (a)  14,879 - (14,879)  -
Power plants in Paraná  1,052,717 (130,051) (216,018) 706,648
   4,312,728 (835,032) (971,588) 2,506,108
(a) Project under development
Schedule of impairment of property plant and equipment
         
  Balance as of January 1, 2021 Impairment / Reversal Balance as of December 31, 2021 Impairment / Reversal Balance as of December 31, 2022
In service          
HPP Colíder (683,193) 43,664 (639,529) 6,970 (632,559)
UEGA (138,777)  138,777 - (108,132) (108,132)
Power plants in Paraná  (103,551) 32,571 (70,980) 26,466 (44,514)
  (925,521)  215,012 (710,509) (74,696) (785,205)
In progress          
Consórcio Tapajós (14,464) (415) (14,879) - (14,879)
Power plants in Paraná  (105,844) (66,659) (172,503)  999 (171,504)
  (120,308) (67,074) (187,382)  999 (186,383)
  (1,045,829)  147,938 (897,891) (73,697) (971,588)
Schedule of impairment risk
           
           
  Discount   RV/BV-1  RV/BV-1   
Cash-generating units rate RV/BV-1 (5% Variation) (10% Variation) Impairment Risk
Wind power Assets          
São Bento Complex (a) 8.06% 59.64% 55.18% 50.93% -
Brisa I Complex(b) 8.06% 58.38% 53.76% 49.35% -
Brisa II Complex(c) 8.06% 55.70% 50.85% 46.24% -
Bento Miguel Complex (d) 8.06% 15.96% 12.23% 8.70% -
Cutia Complex (e) 8.06% 11.67% 8.36% 5.21% -
Jandaíra Complex (f) 5.61% 29.61% 25.92% 22.41% -
Vilas Complex (g) 5.44% 43.11% 38.61% 34.35% -
Hydric Assets          
Foz do Areia 5.71% 29.95% 29.58% 29.21% -
Segredo 5.71% 96.90% 94.04% 91.24% -
Caxias 5.71% 73.31% 70.52% 67.81% -
Guaricana 5.71% 31.92% 30.77% 29.63% -
Chaminé 5.71% 61.48% 60.03% 58.61% -
Apucaraninha 5.71% 28.85% 27.83% 26.81% -
Mauá 5.71% 106.38% 101.73% 97.25% -
Marumbi 5.71% 30.16% 22.67% 20.19% -
Cavernoso II 5.71% 28.09% 24.87% 21.79% -
Bela Vista 7.67% 56.29% 49.96% 44.51% -
Elejor 7.00% 9.45% 6.89% 1.82% -
(a) Contemplates the GE Boa Vista, GE Farol, GE Olho D’Água e GE São Bento do Norte wind farms.
(b) Contemplates the Nova Asa Branca I, Nova Asa Branca II, Nova Asa Branca III e Nova Eurus IV wind farms.
(c) Contemplates the Santa Maria, Santa Helena e Ventos de Santo Uriel wind farms.
(d) Contemplates the 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) Contemplates the Cutia, Guajiru, Jangada, Maria Helena, Potiguar, Esperança e Paraíso dos Ventos wind farms.
(f) Contemplates the Jandaíra I, Jandaíra II, Jandaíra III e Jandaíra IV wind farms.
(g) Contemplates the Potiguar B61, Potiguar B141, Potiguar B142, Potiguar B143 e Ventos de Vila Paraíba IV wind farms.
Schedule of average depreciation rates
       
Depreciation rates (%)   12.31.2022   12.31.2021   12.31.2020 
Average generation segment rates (Note 16.6.1)      
General equipment 6.25 6.25 6.26
Machinery and equipment 3.68 3.68 3.39
Generations 3.42 3.42 3.73
Reservoirs, dams and ducts 2.67 2.56 2.68
Hydraulic turbines 2.89 2.90 2.93
Gas and steam turbines 4.00 4.00 4.00
Gas processing 3.00 3.00 3.00
Wind power plant unit 4.94 4.98 4.94
Buildings 3.07 3.15 3.15
Average rates for central government assets      
Buildings 3.33 3.33 3.35
Machinery and office equipment 6.25 6.27 6.25
Furniture and fixtures 6.25 6.30 6.25
Vehicles 14.29 14.29 14.29