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7 Trade Accounts Receivable | 12 Months Ended
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Dec. 31, 2020
Trade and other receivables [abstract] |
Trade Accounts Receivable |
7 | Trade Accounts Receivable
| Balances | Overdue | Overdue for | Total | Total
| falling due | up to 90 days | more than 90 days | 12.31.2020 | 12.31.2019
Customers |  |  |  |  |
Residential | 388,190 | 211,050 | 40,184 | 639,424 | 579,715
Industrial | 213,229 | 21,048 | 78,025 | 312,302 | 298,719
Commercial | 255,691 | 51,502 | 28,246 | 335,439 | 363,986
Rural | 87,666 | 21,676 | 309 | 109,651 | 103,271
Public Entities | 32,687 | 1,646 | 3,037 | 37,370 | 55,847
Public lighting | 42,319 | 4,296 | - | 46,615 | 38,523
Public service | 40,856 | 658 | 298 | 41,812 | 44,983
Unbilled - captives | 583,209 | - | - | 583,209 | 516,203
Energy installments plan - captives (7.1) | 206,170 | 20,011 | 65,666 | 291,847 | 204,192
Low income subsidy - Eletrobras | 13,783 | - | - | 13,783 | 12,174
Free consumers | 161,273 | 1,613 | 900 | 163,786 | 132,756
Other receivables | 62,362 | 23,105 | 82,803 | 168,270 | 148,375
| 2,087,435 | 356,605 | 299,468 | 2,743,508 | 2,498,744
Concessionaires, Permission holder and Trading Companies |  |  |  |  |
Bilateral contracts | 265,432 | - | - | 265,432 | 191,463
Regulated contracts | 162,290 | 1,792 | 6,869 | 170,951 | 159,492
CCEE (7.2) | 533,223 | 16 | 119,665 | 652,904 | 315,712
Energy suplies | 960,945 | 1,808 | 126,534 | 1,089,287 | 666,667
Charges from using transmission grid | 271,008 | 1,396 | 9,104 | 281,508 | 215,582
. |  |  |  |  |
Telecommunications | - | - | - | - | 67,304
Gas distribution | 56,862 | 1,342 | 12,724 | 70,928 | 111,026
Expected credit losses (7.3) | (7,610) | (11,964) | (345,977) | (365,551) | (376,756)
| 3,368,640 | 349,187 | 101,853 | 3,819,680 | 3,182,567
Current |  |  |  | 3,768,242 | 3,120,168
Noncurrent |  |  |  | 51,438 | 62,399
7.1 | Energy installments plan
The trade accounts receivable renegotiated are discounted to present value as of December 31, 2020, taking into consideration the future value, the maturity dates, the dates of settlement and the discount rate ranging from 0.49% to 2.89% p.m.
7.2 | Electricity Trading Chamber - CCEE
Balance receivable deriving from the positive position in the monthly settlement of the spot market centralized by CCEE. Amounts are received in the second month following the recognition of revenue or offset against future settlements when the result is negative for the subsidiary. Of the total presented, R$119,665 refer to the controversial portion resulting from the effects of the injunction for exclusion of responsibility of Colíder HPP. As a result of unforeseeable circumstances and force majeure, the power plant had its commercial start-up delayed, which was initially scheduled for January 2015. The Company is contesting in court, filing a request for exclusion of liability so that the mandatory supply of energy contracted by the plant, in the period in delay, is postponed. Expected credit losses were recorded in the same amount as the receivable balance, as presented in Note 7.3 . Copel GeT filed an administrative request for the exclusion of liability at ANEEL, which was denied, and subsequently, at 12.18.2017, it filed an ordinary lawsuit with request for advance protection with the Court, requesting the reversal of the agency's decision. On April 6, 2018, the Federal Court of the 1st Region fully granted the preliminary injunction applied for in the interlocutory appeal to suspend the enforcement of any burden or penalty to Copel as a result of noncompliance with the deadlines originally provided for in the Concession Agreement until a final unappelable ruling is rendered. The main action is pending judgment on merits. The contracted energy of the plant is 125 MW mean. For overdue periods the contract was fulfilled as described below: - From January 2015 to May 2016, with suspension of energy delivery by operation because of the injunction obtained by Management; - In June 2016, with partial reduction through a bilateral agreement and suspended remaining balance due to the court injunction; - From July 2016 to December 2018, with reduction of all supply contracts of the CCEARs - Energy Trading Agreement in the Regulated Environment, through a bilateral agreement and participation in the New Energy and Decrease Clearing Facility ("Mecanismo de Compensação de Sobras e Déficits de Energia Nova - MCSD-EN"); and - From January to March 2019, the firmed contracts in the regulated environment became effective again, however, energy supply continued suspended, in light of the injunction obtained. As of March 9, 2019, the plant started commercial production of its first generating unit. Due to the fact it is awaiting a decision on the merits of the lawsuit, in the period in delay of the plant, the Company recognized in the income for the years revenue limited to the financial covenants of the agreement and the regulatory rules, as well as the cost of energy to cover the contractual guarantee.
7.3 | Expected credit losses
| Balance as of | Additions / | Reversal | Balance as of | Additions / | Reversal | Reclassi- | Balance as of
| January 1, 2019 | (Reversals) | of write offs | December 31, 2019 | (Reversals) | of write offs | fication (a) | December 31, 2020
Customers |  |  |  |  |  |  |  |
Residential | 21,722 | 71,794 | (51,692) | 41,824 | 65,937 | (60,365) | - | 47,396
Industrial | 87,197 | 33,772 | (23,015) | 97,954 | 22,487 | (31,575) | - | 88,866
Commercial | 69,717 | 27,866 | (26,658) | 70,925 | 29,092 | (31,294) | - | 68,723
Rural | 3,810 | 1,499 | (1,920) | 3,389 | 4,788 | (4,240) | - | 3,937
Public Entities | 4,874 | 435 | (419) | 4,890 | 9 | (1,815) | - | 3,084
Public lighting | 120 | (117) | - | 3 | 20 | (15) | - | 8
Public service | 199 | 145 | (79) | 265 | 124 | (246) | - | 143
Unbilled | 1,502 | (322) | - | 1,180 | 409 | - | - | 1,589
Adjustment to present value | (2,883) | 1,442 | - | (1,441) | 791 | - | - | (650)
| 186,258 | 136,514 | (103,783) | 218,989 | 123,657 | (129,550) | - | 213,096
Concessionaires, Permission holder and Trading Companies |  |  |  |  |  |  |  |
CCEE (7.2) | 119,665 | - | - | 119,665 | - | - | - | 119,665
Concessionaries and permission holder | 9,474 | 11,608 | (657) | 20,425 | 392 | (284) | - | 20,533
| 129,139 | 11,608 | (657) | 140,090 | 392 | (284) | - | 140,198
Telecommunications | 3,879 | 13,292 | (12,022) | 5,149 | 3,609 | (6,260) | (2,498) | -
Gas distribution | 12,112 | 1,063 | (647) | 12,528 | 238 | (509) | - | 12,257
| 331,388 | 162,477 | (117,109) | 376,756 | 127,896 | (136,603) | (2,498) | 365,551
(a) Reclassification to Assets classified as held for sale (Note 40).

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