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Contract assets (Tables)
 12 Months Ended
Dec. 31, 2021
Schedule of summary of contract assets

     
  12.31.2021 12.31.2020
Power distribution service concession (11.1)   1,798,195   1,114,961
Piped gas distribution service concession (11.2) 29,815 27,254
Power transmission concession (11.3)   5,060,038   4,350,582
    6,888,048   5,492,797
Current    148,488   285,682
Noncurrent    6,739,560   5,207,115
Schedule of power distribution service concession contract

 

11.1Power distribution service concession contract

       
  Assets Special liabilities  Total 
Balance as of January 1, 2020 875,354  (31,070)   844,284
Acquisitions 1,391,267  -   1,391,267
Customers contributions  -   (112,689)  (112,689)
Provision for legal claims added to the cost of the works 1,522  -   1,522
Transfers to intangible assets (Note 19.1)   (1,016,482) 105,116  (911,366)
Transfers to accounts receivable - concessions (Note 10.1)  (94,978) 8,824   (86,154)
Loss on disposal  (11,903)  -   (11,903)
Balance as of December 31, 2020 1,144,780  (29,819)   1,114,961
Acquisitions 1,765,226  -   1,765,226
Customers contributions  -   (160,826)  (160,826)
Provision for legal claims added to the cost of the works   33,040  - 33,040
Transfers to intangible assets (Note 19.1)   (943,905) 122,346  (821,559)
Transfers to accounts receivable - concessions (Note 10.1)   (140,120)   14,628  (125,492)
Loss on disposal   (7,155)  -  (7,155)
Balance as of December 31, 2021 1,851,866  (53,671)   1,798,195
Schedule of piped gas distribution service concession contract

 

11.2Piped gas distribution service concession contract

   
   
Balance as of January 1, 2020   26,734
Acquisitions   15,187
Transfers to intangible assets (Note 19.3)   (7,277)
Transfers from/to accounts receivable - concessions (Note 10.2)   (7,390)
Balance as of December 31, 2020   27,254
Acquisitions   14,269
Transfers to intangible assets (Note 19.3)   (3,398)
Transfers to accounts receivable - concessions (Note 10.2)   (8,310)
Balance as of December 31, 2021   29,815
Schedule of transmission service concession contract

 

11.3Transmission service concession contract

       
  Concession assets RBSE assets Total
Balance as of January 1, 2020 2,601,929 1,317,706   3,919,635
Realization of gains/losses in business combinations 722  -   722
Transfers to electricity grid use charges - customers   (312,120)   (266,027)  (578,147)
Transfers to property, plant and equipment   (613)  -  (613)
Transfers from litigations   (576)  -  (576)
Remuneration 489,438 291,669   781,107
Construction revenue 255,578  -   255,578
Construction income 4,217  -   4,217
Loss from inefficiency  (11.3.1)   (7,654)  -  (7,654)
Loss on disposal (23,687)  - (23,687)
Balance as of December 31, 2020 3,007,234 1,343,348   4,350,582
Realization of gains/losses in business combinations 722  -   722
Transfers to electricity grid use charges - customers   (315,358)   (250,520)  (565,878)
Transfers to property, plant and equipment   (1,483)  -  (1,483)
Transfers from litigations 3,376  -   3,376
Remuneration 621,366 242,872   864,238
Construction revenue 187,733  -   187,733
Construction income 3,097  -   3,097
Gain from efficiency  (11.3.1) 125,699  91,952   217,651
Balance as of December 31, 2021 3,632,386 1,427,652   5,060,038
Schedule of assumptions adopted for the calculation of contract assets

 

11.3.2Assumptions adopted for the calculation of contract assets

         
.   12.31.2021   12.31.2020
  Concession assets RBSE assets Concession assets RBSE assets
Construction income 1.65% N/A 1.65% N/A
Operating and maintenance margin 1.65% N/A 1.65% N/A
Remuneration rate (a)  9.56% p.y.   9.54% p.y.   9.58% p.y.   9.54% p.y. 
Contract correction index  IPCA (b)   IPCA   IPCA (b)   IPCA 
Annual RAP, according to Homologatory Resolution   456,499   192,288   415,455   279,406
 (a) Average rate of contracts 
 (b) Contract 075/2001 - LT 230 kV Bateias - Jaguariaíva, from Copel GET, and contract 002/2005 - LT 525 kV Ivaiporã - Londrina, from Uirapuru, are adjusted by the IGPM.