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OPERATING COSTS, EXPENSES AND OTHER REVENUE | 12 Months Ended
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Dec. 31, 2024
Operating Costs Expenses And Other Revenue |
Operating Costs Expenses and Other Revenue | 27. OPERATING COSTS, EXPENSES AND OTHER REVENUE The operating costs and expenses of the Company is as follows: a) Cost of energy and gas
| 2024 |  | 2023 |  | 2022
Energy purchased for resale |  |  |  |  |
Supply from Itaipu Binacional | 1,204 |  | 1,207 |  | 1,644
Physical guarantee quota contracts | 864 |  | 918 |  | 925
Quotas for Angra I and II nuclear plants | 374 |  | 364 |  | 357
Spot market | 1,154 |  | 478 |  | 530
Proinfa Program | 468 |  | 511 |  | 598
‘Bilateral’ contracts | 499 |  | 510 |  | 493
Energy acquired in Regulated Market auctions | 4,564 |  | 3,940 |  | 3,334
Energy acquired in the Free Market | 5,655 |  | 5,612 |  | 6,003
Distributed generation (‘Geração distribuída’) | 3,239 |  | 2,331 |  | 1,977
PIS/Pasep and Cofins credits | (1,326) |  | (1,223) |  | (1,247)
| 16,695 |  | 14,648 |  | 14,614
Charges for use of the national grid |  |  |  |  |
Transmission charges – Basic network | 3,466 |  | 3,220 |  | 2,925
Distribution charges | 59 |  | 54 |  | 50
PIS/Pasep and Cofins credits | (369) |  | (337) |  | (304)
| 3,156 |  | 2,937 |  | 2,671
Gas purchased for resale (1) | 2,127 |  | 2,237 |  | 2,735
Total | 21,978 |  | 19,822 |  | 20,020
(1) | The price of the gas molecule acquired by Gasmig is corrected for the variation in Brent-type oil and the variation in the exchange rate.
b) Infrastructure construction cost
| 2024 |  | 2023 |  | 2022
Personnel and managers | 172 |  | 155 |  | 135
Materials | 2,325 |  | 2,007 |  | 2,233
Outsourced services | 1,934 |  | 1,458 |  | 1,052
Acquisition of easements | 131 |  | 72 |  | 16
Others | 440 |  | 380 |  | 100
Total | 5,002 |  | 4,072 |  | 3,536
c) Operating costs and expenses
| Operating costs | Expected credit loss | General and administrative expenses | Other expenses | 2024 | 2023 | 2022
2024 | 2023 | 2022 | 2024 | 2023 | 2022 | 2024 | 2023 | 2022 | 2024 | 2023 | 2022
Personnel | 1,053 | 1,000 | 976 | - | - | - | 346 | 308 | 376 | - | - | - | 1,399 | 1,308 | 1,352
Employees’ and managers’ profit sharing | 131 | - | - | - | - | - | 41 | - | 4 | - | 157 | 79 | 172 | 157 | 83
Post-employment benefits (note 23) | 15 | - | - | - | - | - | 5 | - | - | 464 | 591 | 626 | 484 | 591 | 626
Materials | 118 | 100 | 93 | - | - | - | 17 | 40 | 55 | - | - | - | 135 | 140 | 148
Outsourced services (C.1) | 1,866 | 1,652 | 1,433 | - | - | - | 276 | 250 | 273 | - | - | - | 2,142 | 1,902 | 1,706
Depreciation and amortization | 1,352 | 1,247 | 1,110 | - | - | - | 24 | 27 | 72 | - | - | - | 1,376 | 1,274 | 1,182
Provisions (Reversals) (1) | (163) | 333 | 278 | - | - | - | - | - | - | 135 | 101 | 123 | (28) | 434 | 401
Impairment (2) | - | - | - | - | - | - | - | - | - | 46 | - | - | 46 | - | -
Expected credit losses of accounts receivable (note 8) | - | - | - | 175 | 175 | 109 | - | - | - | - | - | - | 175 | 175 | 109
Provision for losses with related party - Renova | - | - | - | - | - | - | - | - | - | - | 1 | (54) | - | 1 | (54)
Reversal of provision with related party (3) | - | - | - | - | - | - | - | - | - | (58) | - | - | (58) | - | -
Write-off of financial asset | - | - | - | - | - | - | - | - | - | - | - | 172 | - | - | 172
Other costs and expenses (C.2) | 312 | 240 | 205 | - | - | - | 111 | 82 | 9 | 114 | 181 | 182 | 537 | 503 | 396
Total | 4,684 | 4,572 | 4,095 | 175 | 175 | 109 | 820 | 707 | 789 | 701 | 1,031 | 1,128 | 6,380 | 6,485 | 6,121
(1) | This variation is basically due to the reversal of a tax contingency arising from a decision in favor of the company in the lower court, which ordered the cancellation of the collection and the extinction of the tax execution of a lawsuit related to social security contributions on Profit Sharing (PLR). For more details, see note 24.
(2) | This amount includes:
| i. | R$41 relating to the recognition of impairment losses on the capital gain of Aliança Norte. For more details, see note 14. This loss is presented in the Operating Segments note as part of the investees segment.
| ii. | R$5 referring to outstanding debts with customer, due to disagreement in values. Arbitration procedure was initiated by the customer.
(3) | Refers to contractual obligations towards the investee Aliança Geração corresponding to contingencies whose triggering event is events that occurred before the closing of the transaction that resulted in the contribution of assets by Cemig GT and Vale S.A. in the capital of this investee On March 27, 2024, the CCVA was signed for the sale of the stake held by Cemig GT in the share capital of Aliança Geração to Vale S.A.. On August 13, 2024, with the conclusion of the sale, Vale S.A. and Cemig GT jointly signed an agreement to extinguish and discharge these contingencies, which resulted in the reversal of the provision in August 2024.
C.1) Outsourced services
| 2024 |  | 2023 |  | 2022
Meter reading and bill delivery | 159 |  | 161 |  | 146
Communication | 182 |  | 169 |  | 153
Maintenance and conservation of electrical facilities and equipment | 799 |  | 708 |  | 589
Building conservation and cleaning | 90 |  | 85 |  | 73
Security services | 22 |  | 20 |  | 17
Consultancy | 19 |  | 21 |  | 39
Information technology | 185 |  | 174 |  | 146
Disconnection and reconnection | 72 |  | 87 |  | 90
Legal services | 38 |  | 32 |  | 40
Environment services | 86 |  | 58 |  | 49
Cleaning of power line pathways | 154 |  | 117 |  | 91
Copying and legal publications | 18 |  | 17 |  | 18
Inspection of customers | 48 |  | 45 |  | 41
Contract labor | 49 |  | 38 |  | 23
Others | 221 |  | 170 |  | 191
Total | 2,142 |  | 1,902 |  | 1,706
C.2) Other costs and expenses, net
| 2024 |  | 2023 |  | 2022
Leasing and rentals | - |  | 3 |  | 16
Advertising | 29 |  | 14 |  | 9
Own consumption | 28 |  | 23 |  | 24
Subsidies and donations | 49 |  | 29 |  | 26
Insurance | 10 |  | 22 |  | 24
CCEE annual charge | 9 |  | 7 |  | 6
Forluz – Administrative running cost | 40 |  | 40 |  | 36
Collecting agents | 60 |  | 72 |  | 77
Net loss on deactivation and disposal of assets | 213 |  | 210 |  | 127
Taxes (IPTU, IPVA and other) | 25 |  | 10 |  | 8
Others | 74 |  | 73 |  | 43
Total | 537 |  | 503 |  | 396
Programmed Voluntary Severance Plan (PDVP) In May 2024, the Company approved its 2024 PDVP, offering employees acceptance of the plan from May 27 to June 21, 2024. This period was subsequently reopened from June 26 to June 28, 2024, and the final result was accepted by 357 employees. The program provided for the payment of the same legal severance payments would apply to a ‘dismissal without just cause’, plus an additional premium, as indemnity. Spending on the program totaled R$78, recognized in Personnel costs and Personnel expenses. d) Other revenue
| 2024 |  | 2023 |  | 2022
Gains arising from the sale of PP&E (note 31a) | 43 |  | - |  | -
Gain on disposal of investment |  |  |  |  |
Aliança Geração (note 31b) | 1,617 |  | - |  | -
Baguari Energia | - |  | 261 |  | -
Retiro Baixo | - |  | 27 |  | -
MESA | - |  | 30 |  | -
Renova | - |  | - |  | 52
Bargain purchases (1) | 14 |  | - |  | 5
Adjustment to fair value of the previous shareholding interest (2) | - |  | 9 |  | -
Periodic Tariff Review, net (3) | 1,521 |  | - |  | -
Total | 3,195 |  | 327 |  | 57
(1) | This amount is made up of advantageous purchases arising from acquisitions made by Cemig SIM, of which R$10 refers to the acquisition of UFV Jequitibá II and R$4 refers to the acquisition of Jequitibá I. For more details see Note 14.
(2) | This refers to the gain on adjustment to fair value of the previous shareholding interest recognized in the process of acquisition by Cemig SIM, in the 2023 fiscal year, of the remaining 51% of UFV Campo Lindo 1, UFV Campo Lindo 2 and UFV Olaria 1.
(3) | This amount is net of PIS/Pasep and Cofins taxes. The total added to Contractual Assets was R$1,676. For more details see Note 13.

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