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Contract assets (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Schedule of summary of contract assets | 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 |
11.1 | Power distribution service concession contract
Schedule of power 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 |
11.2 | Piped gas distribution service concession contract
Schedule of piped 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 |
11.3 | Transmission service concession contract
Schedule of transmission 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 |
11.3.2 | Assumptions adopted for the calculation of contract assets
Schedule of assumptions 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.

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