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OPERATING COSTS AND EXPENSES (Tables) | 12 Months Ended
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Dec. 31, 2021
Operating Costs And Expenses |
Schedule of operating costs and expenses | The operating costs are as follows: Schedule of operating costs and expenses
|  | 2021 |  | 2020 |  | 2019
Personnel (a) |  |  | 1,240 |  |  |  | 1,276 |  |  |  | 1,272 |
Employees’ and managers’ profit sharing |  |  | 134 |  |  |  | 142 |  |  |  | 263 |
Post-employment benefits (reversals) – Note 24 (1) |  |  | 16 |  |  |  | 438 |  |  |  | 408 |
Materials |  |  | 94 |  |  |  | 79 |  |  |  | 91 |
Outsourced services (b) |  |  | 1,450 |  |  |  | 1,265 |  |  |  | 1,239 |
Energy purchased for resale (c) |  |  | 16,101 |  |  |  | 12,111 |  |  |  | 11,286 |
Depreciation and amortization (2) |  |  | 1,049 |  |  |  | 989 |  |  |  | 958 |
Operating provisions and adjustments for operating losses (d) |  |  | 375 |  |  |  | 423 |  |  |  | 2,401 |
Charges for use of the national grid |  |  | 3,337 |  |  |  | 1,748 |  |  |  | 1,426 |
Gas bought for resale |  |  | 2,011 |  |  |  | 1,083 |  |  |  | 1,436 |
Construction costs (e) |  |  | 2,036 |  |  |  | 1,581 |  |  |  | 1,200 |
Other operating expenses, net (f) |  |  | 394 |  |  |  | 297 |  |  |  | 494 |
Operating costs and expenses |  |  | 28,237 |  |  |  | 21,432 |  |  |  | 22,474 |
| (1) | Due to the changes made in the Collective Work Agreement for 2021–23, for offer and payment of life insurance for the employees and former employees, the Company believes that the post-retirement benefit in question had been canceled, in its entirety, and as a result wrote down the balance of the obligation. More information, see Note 24.
| (2) | Net of PIS/Pasep and Cofins taxes applicable to amortization of the right-of-use assets in the amount of R$2.
Schedule of outsourced services | Schedule of outsourced services
|  | 2021 |  | 2020 |  | 2019
Meter reading and bill delivery |  |  | 134 |  |  |  | 127 |  |  |  | 128 |
Communication |  |  | 148 |  |  |  | 116 |  |  |  | 69 |
Maintenance and conservation of electrical facilities and equipment |  |  | 485 |  |  |  | 443 |  |  |  | 404 |
Building conservation and cleaning |  |  | 72 |  |  |  | 63 |  |  |  | 110 |
Security services |  |  | 17 |  |  |  | 19 |  |  |  | 18 |
Audit and consultant |  |  | 43 |  |  |  | 41 |  |  |  | 24 |
Information technology |  |  | 93 |  |  |  | 80 |  |  |  | 63 |
Disconnection and reconnection |  |  | 82 |  |  |  | 39 |  |  |  | 70 |
Legal services |  |  | 32 |  |  |  | 21 |  |  |  | 28 |
Tree pruning |  |  | 46 |  |  |  | 48 |  |  |  | 46 |
Cleaning of power line pathways |  |  | 92 |  |  |  | 75 |  |  |  | 61 |
Copying and legal publications |  |  | 18 |  |  |  | 17 |  |  |  | 21 |
Inspection of customer units |  |  | 33 |  |  |  | 35 |  |  |  | 14 |
Other expenses |  |  | 155 |  |  |  | 141 |  |  |  | 183 |
Outsourced services |  |  | 1,450 |  |  |  | 1,265 |  |  |  | 1,239 |
Schedule of electricity purchased for resale | Schedule of electricity purchased for resale
|  | 2021 |  | 2020 |  | 2019
Supply from Itaipu Binacional |  |  | 1,946 |  |  |  | 1,990 |  |  |  | 1,429 |
Physical guarantee quota contracts |  |  | 832 |  |  |  | 780 |  |  |  | 715 |
Quotas for Angra I and II nuclear plants |  |  | 244 |  |  |  | 303 |  |  |  | 269 |
Spot market |  |  | 1,224 |  |  |  | 1,497 |  |  |  | 1,886 |
Proinfa Program |  |  | 401 |  |  |  | 318 |  |  |  | 376 |
‘Bilateral’ contracts |  |  | 418 |  |  |  | 333 |  |  |  | 311 |
Energy acquired in Regulated Market auctions |  |  | 6,242 |  |  |  | 3,334 |  |  |  | 3,021 |
Energy acquired in the Free Market |  |  | 4,976 |  |  |  | 3,977 |  |  |  | 4,098 |
Distributed generation (‘Geração distribuída’) |  |  | 1,268 |  |  |  | 678 |  |  |  | 207 |
PIS/Pasep and Cofins credits |  |  | (1,450 | ) |  |  | (1,099 | ) |  |  | (1,026 | )
|  |  | 16,101 |  |  |  | 12,111 |  |  |  | 11,286 |
Schedule of operating provision (reversals) | Schedule of operating provision (reversals)
|  | 2021 |  | 2020 |  | 2019
Estimated losses on doubtful accounts receivables (Note 7) (1) |  |  | 144 |  |  |  | 147 |  |  |  | 238 |
Estimated losses on other accounts receivables (2) |  |  | 21 |  |  |  | — |  |  |  | 11 |
Estimated losses on accounts receivables from related parties (4) |  |  | — |  |  |  | 37 |  |  |  | 688 |
Contingency provisions (reversals) (Note 25) (3) |  |  |  |  |  |  |  |  |  |  |  |
Labor claims |  |  | 35 |  |  |  | 46 |  |  |  | 136 |
Civil |  |  | 54 |  |  |  | 43 |  |  |  | 24 |
Tax |  |  | 2 |  |  |  | 75 |  |  |  | 1,228 |
Other |  |  | 19 |  |  |  | 22 |  |  |  | 12 |
|  |  | 110 |  |  |  | 186 |  |  |  | 1,400 |
|  |  | 275 |  |  |  | 370 |  |  |  | 2,337 |
Adjustment for losses |  |  |  |  |  |  |  |  |  |  |  |
Put option – SAAG (Note 31) |  |  | 100 |  |  |  | 53 |  |  |  | 64 |
|  |  | 100 |  |  |  | 53 |  |  |  | 64 |
|  |  | 375 |  |  |  | 423 |  |  |  | 2,401 |
| (1) | The expected losses on receivables are presented as selling expenses in the Statement of Income.
| (2) | This refers mainly to the estimated loss on credits for sharing of infrastructure (rental of overhead cable poles).
| (3) | The provisions for contingencies are presented in the consolidated Statement of income as operating expenses.
| (4) | Estimated losses on accounts receivable from Renova, as a result of the assessment of the jointly controlled entity credit risk.
Schedule of construction cost | Schedule of construction cost
|  | 2021 |  | 2020 |  | 2019
Personnel and managers |  |  | 100 |  |  |  | 83 |  |  |  | 85 |
Materials |  |  | 1,150 |  |  |  | 775 |  |  |  | 595 |
Outsourced services |  |  | 682 |  |  |  | 598 |  |  |  | 421 |
Others |  |  | 104 |  |  |  | 125 |  |  |  | 99 |
Construction cost |  |  | 2,036 |  |  |  | 1,581 |  |  |  | 1,200 |
Schedule of other operating expenses (revenues), net | Schedule of other operating expenses (revenues), net
|  | 2021 |  | 2020 |  | 2019
Leasing and rentals |  |  | 6 |  |  |  | 11 |  |  |  | 20 |
Advertising |  |  | 12 |  |  |  | 7 |  |  |  | 9 |
Own consumption of energy |  |  | 28 |  |  |  | 24 |  |  |  | 21 |
Subsidies and donations |  |  | 27 |  |  |  | 22 |  |  |  | 40 |
Onerous concession |  |  | 3 |  |  |  | 3 |  |  |  | 3 |
Insurance |  |  | 29 |  |  |  | 25 |  |  |  | 12 |
CCEE annual charge |  |  | 6 |  |  |  | 6 |  |  |  | 6 |
Net loss (gain) on deactivation and disposal of assets |  |  | 97 |  |  |  | 81 |  |  |  | 88 |
Forluz – Administrative running cost |  |  | 32 |  |  |  | 30 |  |  |  | 30 |
Collection agents |  |  | 85 |  |  |  | 86 |  |  |  | 88 |
Obligations deriving from investment contracts (1) |  |  | 11 |  |  |  | 9 |  |  |  | 32 |
Taxes and charges |  |  | 16 |  |  |  | 7 |  |  |  | 10 |
Losses (gains) on investments (2) |  |  | 40 |  |  |  | (13 | ) |  |  | — |
Other revenues (expenses) |  |  | 2 |  |  |  | (1 | ) |  |  | 135 |
Other operating expenses (revenues), net |  |  | 394 |  |  |  | 297 |  |  |  | 494 |
| (1) | This refers to claims under the agreement made between Aliança Geração, Vale S.A. and Cemig. The action is provisioned at the cost of R$149 (R$119 on December 31, 2020), of which Cemig is responsible for R$52 (R$41 on December 31, 2020).
| (2) | The Company injected capital into UHE Itaocara S.A., to assist in compliance with the final Arbitration Ruling against the investee, given by the FGV in its Mediation and Arbitration Chamber, in the amount of R$40. This amount is proportional to its shareholding interest in the investee, and was recognized under Other expenses in the Company’s income statement.

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