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Property, Plant and Equipment (Tables)
 12 Months Ended
Dec. 31, 2023
Property Plant And Equipment  
Schedule of property plant and equipment
           
Consolidated   Accumulated     Accumulated  
  Cost depreciation 12.31.2023 Cost depreciation 12.31.2022
In service            
Reservoirs, dams and aqueducts     8,201,193       (5,068,855)     3,132,338         8,200,744       (4,925,970)     3,274,774
Machinery and equipment     9,790,697       (3,087,977)     6,702,720         8,951,061       (3,060,695)     5,890,366
Buildings     2,009,061       (1,176,398)        832,663         2,001,801       (1,160,549)        841,252
Land        499,020            (69,256)        429,764            510,681            (59,157)        451,524
Vehicles and aircraft          13,056            (11,120)            1,936              35,457            (33,115)            2,342
Furniture and fixtures          14,296              (8,570)            5,726              17,007            (10,871)            6,136
(-) Impairment (16.4)      (674,077)                        -       (674,077)          (785,205)                       -      (785,205)
(-) Special Obligations          (6,877)                   510           (6,367)                 (748)                   330             (418)
    19,846,369       (9,421,666)   10,424,703       18,930,798       (9,250,027)     9,680,771
             
In progress            
Cost        415,597                        -        415,597            575,080                       -        575,080
(-) Impairment (16.4)        (14,879)                        -         (14,879)          (186,383)                       -      (186,383)
         400,718                        -        400,718            388,697                       -        388,697
    20,247,087       (9,421,666)   10,825,421       19,319,495       (9,250,027)   10,069,468
Schedule of changes in property plant and equipment
               
Consolidated   Additions /
Impairment		       Business Reclassification (a)  
  Balance as of   Loss on   combination Balance as of
  January 1, 2023 Depreciation disposal Transfers effects (Note 1.2) 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) (2,555)      294,149                1,139,428     (229,022)                 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 and aircraft               2,342                    -               (458) (1)               53                              -                  -                        1,936
Furniture and fixtures               6,136                    -               (603) (393)             689                              5            (108)                        5,726
(-) Impairment (16.4)         (785,205)         282,632                     -               -    (171,504)                              -                  -                   (674,077)
(-) Special Obligations                (418)                    -                 246               -        (6,297)                              -              102                       (6,367)
         9,680,771         282,632        (580,243) (4,127)      159,483                1,139,433     (253,246)               10,424,703
In progress                
Cost           575,080         172,410                     - (7,590)    (331,473)                     47,675       (40,505)                    415,597
(-) Impairment (16.4)         (186,383)                    -                     -               -      171,504                              -                  -                     (14,879)
            388,697         172,410                     - (7,590)    (159,969)                     47,675       (40,505)                    400,718
       10,069,468         455,042        (580,243) (11,717)           (486)                1,187,108     (293,751)               10,825,421
(a)Reclassification to Assets classified as held for sale (Note 39).

 

 

             
Consolidated   Additions /
Impairment		        
  Balance as of   Loss on   Balance as of
  January 1, 2022 Depreciation disposal Transfers 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
Schedule of joint operations property plant and equipment
       
  Share Annual average     
Joint operations  Copel GeT (%) depreciation rate  (%) 12.31.2023 12.31.2022
HPP Gov. Jayme Canet Júnior (Mauá) - Consórcio        
      Energético Cruzeiro do Sul 51.0      
In service           859,888        859,882
(-) Accumulated depreciation   2.74     (313,253)      (288,728)
In progress             20,447          19,899
            567,082        591,053
HPP Baixo Iguaçu 30.0      
In service           697,225        693,487
(-) Accumulated depreciation   3.29     (110,039)        (87,278)
In progress               42,989          55,863
            630,175        662,072
         1,197,257     1,253,125
Schedule of impairment balances
       
Consolidated     Property, Plant and Equipment   Value in use
  Cost  Depreciation Impairment 
HPP Colíder 2,580,309 (386,847) (498,906) 1,694,556
Consórcio Tapajós (a) 14,879 - (14,879) -
Power plants in Paraná 462,999 (157,542) (175,171) 130,286
  3,058,187 (544,389) (688,956) 1,824,842

 

(a)Project under development
Schedule of impairment of property plant and equipment
           
Consolidated Balance as of Impairment / Reversal Balance as of Impairment / Reversal Transfer Balance as of
  January 1, 2022 December 31, 2022 December 31, 2023
In service            
HPP Colíder (639,529) 6,970 (632,559) 133,653 - (498,906)
UEGA (Note 39) - (108,132) (108,132) 108,132 - -
Power plants in Paraná  (70,980) 26,466 (44,514)               40,847     (171,504) (175,171)
  (710,509)            (74,696) (785,205)             282,632     (171,504) (674,077)
In progress            
Consórcio Tapajós (14,879) - (14,879) - - (14,879)
Power plants in Paraná  (172,503) 999 (171,504) - 171,504 -
  (187,382) 999 (186,383) - 171,504 (14,879)
  (897,891) (73,697) (971,588) 282,632 - (688,956)
Schedule of impairment risk
         
Cash-generating units Discount   RV/BV-1  RV/BV-1  Impairment Risk
rate RV/BV-1 (5% Variation) (10% Variation)
Wind power Assets          
São Bento Complex (a) 8.17% 78.56% 73.72% 69.09%                        -
Brisa I Complex  (b) 8.17% 74.49% 69.45% 64.64%                        -
Brisa II Complex  (c) 8.17% 72.24% 66.94% 61.89%                        -
Bento Miguel Complex (d) 8.17% 27.10% 23.11% 19.34%                        -
Cutia Complex (e) 8.17% 21.56% 18.06% 14.72%                        -
Jandaíra Complex (f) 5.29% 33.62% 29.80% 26.16%                        -
Vilas Complex (g) 4.94% 46.42% 42.02% 37.81%                        -
Aventura Complex (h) 4.66% 22.96% 19.44% 16.07%                        -
Santa Rosa e Novo Mundo Complex (i) 4.66% 15.95% 12.71% 9.61%                        -
Hydric Assets          
Foz do Areia 5.43% 12.36% 12.21% 12.07%                        -
Segredo 5.43% 51.94% 49.82% 47.73%                        -
Caxias 5.43% 49.54% 47.36% 45.22%                        -
Chaminé 5.43% 4.85% 4.02% 3.21%                        -
Apucaraninha 5.43% 8.91% 8.25% 7.61%                        -
Mauá 5.43% 127.13% 122.18% 117.41%                        -
Cavernoso II 5.43% 43.05% 39.63% 36.34%                        -
Bela Vista 7.66% 75.43% 69.25% 63.43%                        -
Elejor 7.00% 7.21% 4.67% 2.22%                        -

 

 

(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 (%)   12.31.2023   12.31.2022   12.31.2021 
Average generation segment rates (Note 16.5.1)      
General equipment                          6.24                     6.25                     6.25
Machinery and equipment                          3.87                     3.68                     3.68
Generations                          3.42                     3.42                     3.42
Reservoirs, dams and ducts                          2.64                     2.67                     2.56
Hydraulic turbines                          2.88                     2.89                     2.90
Wind power plant unit                          4.94                     4.94                     4.98
Buildings                          3.05                     3.07                     3.15
Average rates for central government assets      
Buildings                          3.33                     3.33                     3.33
Machinery and office equipment                          6.25                     6.25                     6.27
Furniture and fixtures                          6.27                     6.25                     6.30
Vehicles                        14.29                   14.29                   14.29