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Revenue (Tables) | 12 Months Ended
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Dec. 31, 2024
Revenue |
Schedule of Net Operating Revenue |
| 2024 |  | 2023 |  | 2022
Revenue from supply of energy (a) | 34,341 |  | 31,671 |  | 30,158
Revenue from use of the electricity distribution systems (TUSD) | 5,134 |  | 4,417 |  | 3,685
CVA and Other financial components (1) | 423 |  | (213) |  | (1,147)
Reimbursement of PIS/Pasep and Cofins over ICMS credits to customers- realization (note 19) | 513 |  | 1,909 |  | 2,360
Transmission revenue (b) |  |  |  |  |
Operation and maintenance revenue | 383 |  | 373 |  | 413
Construction revenue | 425 |  | 242 |  | 407
Interest revenue arising from the financing component in the transmission contract asset (note 13) | 433 |  | 524 |  | 575
Generation indemnity revenue (note 12.2) | 86 |  | 93 |  | 47
Distribution construction revenue | 4,712 |  | 3,899 |  | 3,246
Adjustment to expectation of cash flow from indemnifiable financial assets of distribution concession | 104 |  | 149 |  | 39
Revenue on financial updating of the Concession Grant Fee (note 12.3) | 447 |  | 412 |  | 467
Transactions in energy on the CCEE | 92 |  | 146 |  | 183
Mechanism for the sale of surplus | - |  | (4) |  | 453
Supply of gas | 3,919 |  | 4,139 |  | 4,529
Fine for violation of service continuity indicator | (157) |  | (139) |  | (94)
PIS/Pasep and Cofins credits to be refunded to consumers | - |  | - |  | (830)
Other operating revenues (c) | 2,906 |  | 2,316 |  | 2,658
Deductions on revenue (d) | (13,941) |  | (13,084) |  | (12,686)
Revenue | 39,820 |  | 36,850 |  | 34,463
(1) | This income derives from the total additions and amortizations shown in note 13.4.
Schedule of Revenue from Energy Supply |
| GWh (1) |  | R$
| 2024 |  | 2023 |  | 2022 |  | 2024 |  | 2023 |  | 2022
Residential | 14,430 |  | 13,311 |  | 11,956 |  | 12,970 |  | 10,794 |  | 10,133
Industrial | 17,820 |  | 18,343 |  | 18,388 |  | 5,377 |  | 5,903 |  | 5,991
Commercial, services and others | 11,802 |  | 11,443 |  | 10,410 |  | 6,613 |  | 6,314 |  | 6,155
Rural | 3,578 |  | 3,507 |  | 3,359 |  | 2,528 |  | 2,238 |  | 2,050
Public authorities | 1,031 |  | 973 |  | 863 |  | 937 |  | 786 |  | 660
Public lighting | 973 |  | 1,056 |  | 1,138 |  | 546 |  | 498 |  | 535
Public services | 920 |  | 1,055 |  | 1,404 |  | 728 |  | 744 |  | 841
Subtotal | 50,554 |  | 49,688 |  | 47,518 |  | 29,699 |  | 27,277 |  | 26,365
Own consumption | 30 |  | 30 |  | 31 |  | - |  | - |  | -
Unbilled revenue | - |  | - |  | - |  | 92 |  | 166 |  | (189)
| 50,584 |  | 49,718 |  | 47,549 |  | 29,791 |  | 27,443 |  | 26,176
Wholesale supply to other concession holders (2) | 17,192 |  | 17,328 |  | 16,777 |  | 4,500 |  | 4,183 |  | 3,894
Wholesale supply unbilled, net | - |  | - |  | - |  | 50 |  | 45 |  | 88
Total | 67,776 |  | 67,046 |  | 64,326 |  | 34,341 |  | 31,671 |  | 30,158
(1) | Data not audited by independent auditors.
(2) | Includes Sale Contracts in the Regulated Market (CCEARs – Contratos de Comercialização de Energia no Ambiente Regulado) through the Surplus and Deficits Offsetting Mechanism (MSCD: Mecanismo de Compensação de Sobras e Déficits), sales on the Free Market, and the revenues from management of generation assets (GAG – Gestão de Ativos da Geração) for the 18 hydroelectric plants of Lot D of Auction no 12/2015.
Schedule of Transmission Concession Contract |
| 2024 |  | 2023 |  | 2022
Construction and upgrades Revenue (1) | 425 |  | 242 |  | 407
Construction and upgrades costs | (290) |  | (172) |  | (291)
Margin | 135 |  | 70 |  | 116
Mark-up (%) | 46.55% |  | 40.70% |  | 39.86%
Operation and maintenance Revenue (1) | 383 |  | 373 |  | 413
Operation and maintenance cost | (298) |  | (292) |  | (287)
Margin | 85 |  | 81 |  | 126
Mark-up (%) | 28.52% |  | 27.74% |  | 43.90%
(1) | This breakdown does not include the financial “Interest revenue arising from the financing component in the transmission contract asset” – which is also part of the concession’s transmission revenue.
Schedule of Other Operating Revenues |
| 2024 |  | 2023 |  | 2022
Charged service | 18 |  | 21 |  | 19
Services rendered | 98 |  | 85 |  | 66
Low-income subsidy | 463 |  | 401 |  | 321
Subsidy SCEE (1) | (14) |  | 129 |  | -
Subsidy Eletrobras | 104 |  | 51 |  | 432
Tariff flags subsidy | 153 |  | 78 |  | 290
CDE subsidy to cover tariff discounts | 1,334 |  | 984 |  | 931
Subsidies associated with the EUST | 71 |  | 47 |  | 31
Rental and leasing | 562 |  | 412 |  | 493
Contractual indemnities | - |  | 6 |  | -
Others | 117 |  | 102 |  | 75
Total | 2,906 |  | 2,316 |  | 2,658
(1) | The variation arises from Cemig D's Annual Tariff Readjustment.
Schedule of Deduction on Revenue |
| 2024 |  | 2023 |  | 2022
Taxes on revenue |  |  |  |  |
ICMS | 5,743 |  | 5,043 |  | 4,892
Cofins | 3,193 |  | 3,032 |  | 2,948
PIS/Pasep | 693 |  | 658 |  | 643
Others | 7 |  | 7 |  | 5
| 9,636 |  | 8,740 |  | 8,488
Charges to the customer |  |  |  |  |
Global Reversion Reserve (RGR) | 8 |  | 12 |  | 14
Energy Efficiency Program (PEE) | 83 |  | 74 |  | 69
Energy Development Account (CDE) | 3,873 |  | 3,949 |  | 4,057
Research and Development (R&D) | 41 |  | 37 |  | 35
National Scientific and Technological Development Fund (FNDCT) | 59 |  | 53 |  | 49
Energy System Expansion Research (EPE of MME) | 30 |  | 27 |  | 25
Customer charges - Proinfa alternative sources program | 58 |  | 63 |  | 77
Energy services inspection fee | 41 |  | 37 |  | 33
Royalties for use of water resources | 68 |  | 53 |  | 54
Customer charges - the ‘Flag Tariff’ system | - |  | - |  | (252)
CDE on R&D | 18 |  | 16 |  | 15
CDE on PEE | 26 |  | 23 |  | 22
| 4,305 |  | 4,344 |  | 4,198
Total | 13,941 |  | 13,084 |  | 12,686

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