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Regulatory charges (Tables) | 12 Months Ended
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Dec. 31, 2024
Regulatory Charges |
Schedule of Information about Amounts Recognised in relation to Regulatory Deferral Account Balances |
| Dec. 31, 2024 |  | Dec. 31, 2023
Liabilities |  |  |
Global Reversion Reserve (RGR) | 28 |  | 28
Energy Development Account (CDE) | 76 |  | 133
Grantor inspection fee – Aneel | 4 |  | 3
Energy Efficiency Program | 188 |  | 187
Research and development (R&D) | 146 |  | 150
Energy System Expansion Research | 5 |  | 5
National Scientific and Technological Development Fund | 10 |  | 9
Proinfa – Alternative Energy Program | 9 |  | 9
Royalties for use of water resources | 12 |  | 11
Emergency capacity charge | 26 |  | 26
CDE on R&D (1) | 3 |  | 3
CDE on EEP | 5 |  | 8
Others | 4 |  | 5
| 516 |  | 577
Current liabilities | 344 |  | 487
Non-current liabilities | 172 |  | 90
(1) | As per Aneel Dispatch 3,056 of October 9, 2024, the monthly installments of Cemig D’s charges related to the Covid and Water Scarcity accounts of the CDE (Conta de Desenvolvimento Energético) are no longer charged, since both accounts have been fully paid.
(2) | The Energy Efficiency Program (PEE) aims to promote the efficient use of electricity in all sectors of the economy. To this end, concessionaires and permit holders of public energy distribution services are obliged to invest an annual amount of their net revenue in research and development in the electricity sector.
Schedule of Research Development and Innovation |
| Dec. 31, 2023 |  | Additions |  | Expenses |  | Investments |  | Monetary updating |  | Dec. 31, 2024
FNDCT | 9 |  | 48 |  | (47) |  | - |  | - |  | 10
MME | 5 |  | 24 |  | (24) |  | - |  | - |  | 5
R&D (1) | 150 |  | 36 |  | - |  | (56) |  | 16 |  | 146
Total | 164 |  | 108 |  | (71) |  | (56) |  | 16 |  | 161
| Consolidated
| Dec. 31, 2022 |  | Additions |  | Expenses |  | Investments |  | Monetary updating |  | Dec. 31, 2023
FNDCT | 8 |  | 63 |  | (62) |  | - |  | - |  | 9
MME | 4 |  | 32 |  | (31) |  | - |  | - |  | 5
R&D (1) | 126 |  | 40 |  | - |  | (32) |  | 16 |  | 150
Total | 138 |  | 135 |  | (93) |  | (32) |  | 16 |  | 164
(1) | The changes in R&D are presented net of services in progress, which amounted to R$3 on December 31, 2024 and R$6 on December 31, 2022.

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