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Concession Financial and Sector Assets and Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2024
Concession Financial and Sector Assets and Liabilities |
Schedule of Financial Assets and Liabilities of Concession |
| Dec. 31, 2024 |  | Dec. 31, 2023
Concession financial assets related to the infrastructure |  |  |
Energy distribution concession | 2,714 |  | 1,881
Gas distribution concession | 92 |  | 38
Indemnifiable receivable – Generation (12.b) | 871 |  | 785
Concession grant fee – Generation concessions (12.c) | 3,099 |  | 3,031
| 6,776 |  | 5,735
Sector financial assets |  |  |
Amounts receivable from Parcel A (CVA) and Other Financial Components (12.d) | 1,296 |  | 805
Total assets | 8,072 |  | 6,540
Sector financial liabilities |  |  |
Account for compensation of variation of parcel A items (CVA) and Other financial components (12.d) | (16) |  | -
Total liabilities | (16) |  | -
Current assets | 1,190 |  | 814
Non-current assets | 6,882 |  | 5,726
Current liabilities | (16) |  | -
Schedule of Changes in Concession Financial Assets | The changes in concession financial assets are as follows:
| Energy Distribution |  | Generation |  | Gas Distribution |  | Total
Balances at December 31, 2021 | 684 |  | 3,608 |  | 34 |  | 4,326
Transfers from contract assets | 670 |  | - |  | - |  | 670
Transfers from (to) intangible assets | (22) |  | - |  | - |  | (22)
Monetary updating | 39 |  | 514 |  | 3 |  | 556
Fair Value Adjustments | - |  | (172) |  | - |  | (172)
Disposals | (1) |  | - |  | - |  | (1)
Amounts received | - |  | (308) |  | - |  | (308)
Balances at December 31, 2022 | 1,370 |  | 3,642 |  | 37 |  | 5,049
Transfers from contract assets | 363 |  | - |  | - |  | 363
Monetary updating | 148 |  | 505 |  | 1 |  | 654
Disposals | - |  | - |  | - |  | -
Amounts received | - |  | (331) |  | - |  | (331)
Balances at December 31, 2023 | 1,881 |  | 3,816 |  | 38 |  | 5,735
Transfers from contract assets | 731 |  | - |  | 51 |  | 782
Monetary updating | 104 |  | 534 |  | 3 |  | 641
Disposals | (2) |  | - |  | - |  | (2)
Amounts received | - |  | (343) |  | - |  | (343)
Classification as held for sale | - |  | (37) |  | - |  | (37)
Balances at December 31, 2024 | 2,714 |  | 3,970 |  | 92 |  | 6,776
Schedule of Changes in Concession Financial Assets Related to Concession Grant Fee | The changes in concession financial assets are as follows:
SPE |  | Plants |  | Dec. 31, 2023 |  | Monetary updating |  | Amounts received |  | Classification as held for sale |  | Dec. 31, 2024
Cemig Geração Três Marias S.A. |  | Três Marias |  | 1,716 |  | 242 |  | (184) |  | - |  | 1,774
Cemig Geração Salto Grande S.A. |  | Salto Grande |  | 539 |  | 76 |  | (58) |  | - |  | 557
Cemig Geração Itutinga S.A. |  | Itutinga |  | 204 |  | 32 |  | (25) |  | - |  | 211
Cemig Geração Camargos S.A. |  | Camargos |  | 152 |  | 24 |  | (18) |  | - |  | 158
Cemig Geração Sul S.A. |  | Coronel Domiciano, Joasal, Marmelos, Paciência e Piau |  | 201 |  | 33 |  | (26) |  | (22) |  | 186
Cemig Geração Leste S.A. |  | Dona Rita, Ervália, Neblina, Peti, Sinceridade e Tronqueiras |  | 137 |  | 25 |  | (20) |  | - |  | 142
Cemig Geração Oeste S.A. |  | Cajurú, Gafanhoto e Martins |  | 82 |  | 15 |  | (12) |  | (14) |  | 71
Total |  |  |  | 3,031 |  | 447 |  | (343) |  | (36) |  | 3,099
SPE |  | Plants |  | Dec. 31, 2022 |  | Monetary updating |  | Amounts received |  | Dec. 31, 2023
Cemig Geração Três Marias S.A. |  | Três Marias |  | 1,672 |  | 222 |  | (178) |  | 1,716
Cemig Geração Salto Grande S.A. |  | Salto Grande |  | 525 |  | 70 |  | (56) |  | 539
Cemig Geração Itutinga S.A. |  | Itutinga |  | 198 |  | 30 |  | (24) |  | 204
Cemig Geração Camargos S.A. |  | Camargos |  | 148 |  | 22 |  | (18) |  | 152
Cemig Geração Sul S.A. |  | Coronel Domiciano, Joasal, Marmelos, Paciência e Piau |  | 195 |  | 31 |  | (25) |  | 201
Cemig Geração Leste S.A. |  | Dona Rita, Ervália, Neblina, Peti, Sinceridade e Tronqueiras |  | 133 |  | 23 |  | (19) |  | 137
Cemig Geração Oeste S.A. |  | Cajurú, Gafanhoto e Martins |  | 79 |  | 14 |  | (11) |  | 82
Total |  |  |  | 2,950 |  | 412 |  | (331) |  | 3,031
SPC |  | Plants |  | Dec. 31, 2021 |  | Monetary updating |  | Amounts received |  | Dec. 31, 2022
CEMIG Geração Três Marias S.A. |  | Três Marias |  | 1,584 |  | 254 |  | (166) |  | 1,672
CEMIG Geração Salto Grande S.A. |  | Salto Grande |  | 497 |  | 80 |  | (52) |  | 525
CEMIG Geração Itutinga S.A. |  | Itutinga |  | 187 |  | 33 |  | (22) |  | 198
CEMIG Geração Camargos S.A. |  | Camargos |  | 140 |  | 25 |  | (17) |  | 148
CEMIG Geração Sul S.A. |  | Coronel Domiciano, Joasal, Marmelos, Paciência and Piau |  | 184 |  | 34 |  | (23) |  | 195
CEMIG Geração Leste S.A. |  | Dona Rita, Ervália, Neblina, Peti, Sinceridade and Tronqueiras |  | 125 |  | 26 |  | (18) |  | 133
CEMIG Geração Oeste S.A. |  | Cajurú, Gafanhoto and Martins |  | 75 |  | 15 |  | (11) |  | 79
Total |  |  |  | 2,792 |  | 467 |  | (309) |  | 2,950
Schedule of Financial Assets and Financial Liabilities With the Tariff Adjustments | The balances of these sectoral financial assets and liabilities are presented at net value per tariff cycle, in accordance with the tariff adjustments approved or to be approved.
Sectoral financial assets | Dec. 31, 2023 |  | Additions |  | Amortization |  | Remuneration |  | Transfer |  | Dec. 31, 2024 |  | Amortization cycle |  | Constitution cycle |  | Current |  | Non-current
CVA assets | (685) |  | 1,581 |  | (1,653) |  | 170 |  | 728 |  | 141 |  | - |  | 141 |  | 76 |  | 65
Energy acquisition (CVA energy) | (1,109) |  | 1,271 |  | (952) |  | 113 |  | 997 |  | 320 |  | - |  | 320 |  | 182 |  | 138
Itaipu energy costs | 29 |  | - |  | (151) |  | 2 |  | 42 |  | (78) |  | - |  | (78) |  | (46) |  | (32)
Program of Incentives for Alternative Electricity Sources – PROINFA | (20) |  | 6 |  | - |  | - |  | 20 |  | 6 |  | - |  | 6 |  | 3 |  | 3
Transport basic charges | 413 |  | 305 |  | (381) |  | 38 |  | (126) |  | 249 |  | - |  | 249 |  | 147 |  | 102
Transport of Itaipu supply | 67 |  | 18 |  | (58) |  | 6 |  | (37) |  | (4) |  | - |  | (4) |  | (2) |  | (2)
System service charges – ESS | (62) |  | (42) |  | (97) |  | 11 |  | (31) |  | (221) |  | - |  | (221) |  | (131) |  | (90)
CDE | (3) |  | 23 |  | (14) |  | - |  | (137) |  | (131) |  | - |  | (131) |  | (77) |  | (54)
Other sectoral financial assets | 1,490 |  | 1,088 |  | (1,430) |  | 129 |  | (122) |  | 1,155 |  | - |  | 1,155 |  | 783 |  | 372
Quotas from nuclear energy | 138 |  | 105 |  | (121) |  | 14 |  | (47) |  | 89 |  | - |  | 89 |  | 52 |  | 37
Neutrality of Parcel A | 29 |  | 142 |  | (101) |  | 8 |  | 13 |  | 91 |  | - |  | 91 |  | 54 |  | 37
Estimated neutrality on distributed generation credits | 357 |  | 296 |  | - |  | 39 |  | - |  | 692 |  | - |  | 692 |  | 692 |  | -
Energy over contracting | 922 |  | 526 |  | (774) |  | 37 |  | (304) |  | 407 |  | - |  | 407 |  | 241 |  | 166
Tariff refunds | (88) |  | - |  | - |  | - |  | 16 |  | (72) |  | - |  | (72) |  | (48) |  | (24)
Other | 132 |  | 19 |  | (434) |  | 31 |  | 200 |  | (52) |  | - |  | (52) |  | (208) |  | 156
Total sectorial financial assets | 805 |  | 2,669 |  | (3,083) |  | 299 |  | 606 |  | 1,296 |  | - |  | 1,296 |  | 859 |  | 437
Sectorial financial liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
CVA liabilities | - |  | (1,490) |  | 2,286 |  | (208) |  | (728) |  | (140) |  | (140) |  | - |  | (140) |  | -
Energy acquisition (CVA energy) | - |  | (998) |  | 1,861 |  | (193) |  | (997) |  | (327) |  | (327) |  | - |  | (327) |  | -
Itaipu energy costs | - |  | (113) |  | 97 |  | (15) |  | (42) |  | (73) |  | (73) |  | - |  | (73) |  | -
Program of Incentives for Alternative Electricity Sources – PROINFA | - |  | (18) |  | 30 |  | (2) |  | (20) |  | (10) |  | (10) |  | - |  | (10) |  | -
Transport basic charges | - |  | - |  | 30 |  | - |  | 126 |  | 156 |  | 156 |  | - |  | 156 |  | -
Transport of Itaipu supply | - |  | (5) |  | - |  | 1 |  | 37 |  | 33 |  | 33 |  | - |  | 33 |  | -
System service charges – ESS | - |  | (224) |  | 266 |  | (2) |  | 31 |  | 71 |  | 71 |  | - |  | 71 |  | -
CDE | - |  | (132) |  | 2 |  | 3 |  | 137 |  | 10 |  | 10 |  | - |  | 10 |  | -
Other sector financial liabilities | - |  | (715) |  | 755 |  | (33) |  | 117 |  | 124 |  | 124 |  | - |  | 124 |  | -
Quotas from nuclear energy | - |  | - |  | 2 |  | - |  | 47 |  | 49 |  | 49 |  | - |  | 49 |  | -
Neutrality of Parcel A | - |  | (33) |  | 82 |  | (2) |  | (13) |  | 34 |  | 34 |  | - |  | 34 |  | -
Energy over contracting | - |  | - |  | - |  | - |  | 304 |  | 304 |  | 304 |  | - |  | 304 |  | -
Tariff refunds | - |  | (99) |  | 88 |  | (3) |  | (16) |  | (30) |  | (30) |  | - |  | (30) |  | -
Other | - |  | (583) |  | 583 |  | (28) |  | (205) |  | (233) |  | (233) |  | - |  | (233) |  | -
Total sector financial liabilities | - |  | (2,205) |  | 3,041 |  | (241) |  | (611) |  | (16) |  | (16) |  | - |  | (16) |  | -
Total sectoral financial assets and liabilities (net) | 805 |  | 464 |  | (42) |  | 58 |  | (5) |  | 1,280 |  | (16) |  | 1,296 |  | 843 |  | 437
Sectorial financial assets | Dec. 31, 2022 |  | Additions |  | Amortization |  | Remuneration |  | Transfer (2) |  | Dec. 31, 2023 |  | Amortization cycle |  | Constitution cycle |  | Current |  | Non-current
CVA assets | (345) |  | 1,597 |  | (2,527) |  | 4,260 |  | 330 |  | (685) |  | (434) |  | (251) |  | (584) |  | (101)
Energy acquisition (CVA energy) | (1,787) |  | 1,213 |  | (1,223) |  | 161 |  | 527 |  | (1,109) |  | (443) |  | (666) |  | (837) |  | (272)
Itaipu energy costs | 594 |  | (40) |  | (455) |  | 44 |  | (114) |  | 29 |  | 143 |  | (114) |  | 75 |  | (46)
Program of Incentives for Alternative Electricity Sources – PROINFA | 31 |  | - |  | (42) |  | 1 |  | (10) |  | (20) |  | (19) |  | (1) |  | (20) |  | -
Transport basic charges | 215 |  | 388 |  | (265) |  | 40 |  | 35 |  | 413 |  | 114 |  | 299 |  | 291 |  | 122
Transport of Itaipu supply | 18 |  | 60 |  | (20) |  | 4 |  | 5 |  | 67 |  | 14 |  | 53 |  | 45 |  | 22
System service charges – ESS | 583 |  | (24) |  | (380) |  | 7 |  | (248) |  | (62) |  | (242) |  | 180 |  | (136) |  | 74
CDE | 1 |  | - |  | (142) |  | 3 |  | 135 |  | (3) |  | (1) |  | (2) |  | (2) |  | (1)
Other sectoral financial assets | 1,289 |  | 1,254 |  | (1,388) |  | 205 |  | 130 |  | 1,490 |  | 523 |  | 967 |  | 1,077 |  | 413
Quotas from nuclear energy | 105 |  | 103 |  | (86) |  | 16 |  | - |  | 138 |  | 51 |  | 87 |  | 102 |  | 36
Neutrality of Parcel A | 203 |  | 168 |  | (51) |  | 5 |  | 61 |  | 386 |  | (29) |  | 415 |  | 363 |  | 23
Energy over contracting (1) | 750 |  | 643 |  | (529) |  | 58 |  | - |  | 922 |  | 349 |  | 573 |  | 688 |  | 234
Tariff refunds | (71) |  | - |  | - |  | - |  | (17) |  | (88) |  | (25) |  | (63) |  | (67) |  | (21)
Other | 302 |  | 340 |  | (722) |  | 126 |  | 86 |  | 132 |  | 177 |  | (45) |  | (9) |  | 141
Total sectorial financial assets | 944 |  | 2,851 |  | (3,915) |  | 465 |  | 460 |  | 805 |  | 89 |  | 716 |  | 493 |  | 312
Sectorial financial liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
CVA liabilities | - |  | (1,706) |  | 2,380 |  | (343) |  | (331) |  | - |  | - |  | - |  | - |  | -
Energy acquisition (CVA energy) | - |  | (1,179) |  | 1,941 |  | (234) |  | (528) |  | - |  | - |  | - |  | - |  | -
Itaipu energy costs | - |  | (109) |  | - |  | (5) |  | 114 |  | - |  | - |  | - |  | - |  | -
Program of Incentives for Alternative Electricity Sources – PROINFA | - |  | (31) |  | 25 |  | (4) |  | 10 |  | - |  | - |  | - |  | - |  | -
Transport basic charges | - |  | - |  | 35 |  | - |  | (35) |  | - |  | - |  | - |  | - |  | -
Transport of Itaipu supply | - |  | - |  | 5 |  | - |  | (5) |  | - |  | - |  | - |  | - |  | -
System service charges – ESS | - |  | (506) |  | 371 |  | (113) |  | 248 |  | - |  | - |  | - |  | - |  | -
CDE | - |  | 119 |  | 3 |  | 13 |  | (135) |  | - |  | - |  | - |  | - |  | -
Other sector financial liabilities | - |  | (729) |  | 908 |  | (47) |  | (132) |  | - |  | - |  | - |  | - |  | -
Neutrality of Parcel A | - |  | (58) |  | 124 |  | (5) |  | (61) |  | - |  | - |  | - |  | - |  | -
Tariff refunds | - |  | (88) |  | 73 |  | (2) |  | 17 |  | - |  | - |  | - |  | - |  | -
Other | - |  | (583) |  | 711 |  | (40) |  | (88) |  | - |  | - |  | - |  | - |  | -
Total sector financial liabilities | - |  | (2,435) |  | 3,288 |  | (390) |  | (463) |  | - |  | - |  | - |  | - |  | -
Total sectoral financial assets and liabilities (net) | 944 |  | 416 |  | (627) |  | 75 |  | (3) |  | 805 |  | 89 |  | 716 |  | 493 |  | 312
(1) | Reversal of the over contracting amounts passed on to consumers in the 2018 and 2019 tariff adjustments because they were previously recognized by ANEEL as involuntary over contracting, made possible by the publication of the involuntariness orders, recognizing over contracting as voluntary. Regarding the amount constituted in the period, there is a high volume of surplus energy, mainly due to the growing increase in the energy injected by MMGD facilities, settled at a low PLD.
(2) | In addition to the transfers between sectoral financial assets and liabilities, there was a transfer of R$1,550 to the "Other assets" group.
Changes in Balances of These Sector Assets and Liabilities | The movement in the balance is as follows:
Generation plant | Concession expiration date |  | Installed capacity (MW) (information of MW not audited) |  | Net balance of assets on December 31, 2023 |  | Financial Update |  | Net balance of assets on December 31, 2024
Lot D |  |  |  |  |  |  |  |  |
UHE Três Marias | July 2015 |  | 396.00 |  | 203 |  | 22 |  | 225
UHE Salto Grande | July 2015 |  | 102.00 |  | 104 |  | 11 |  | 115
UHE Itutinga | July 2015 |  | 52.00 |  | 12 |  | 1 |  | 13
UHE Camargos | July 2015 |  | 46.00 |  | 24 |  | 2 |  | 26
PCH Piau | July 2015 |  | 18.01 |  | 6 |  | 1 |  | 7
PCH Gafanhoto | July 2015 |  | 14.00 |  | 7 |  | 1 |  | 8
PCH Peti | July 2015 |  | 9.40 |  | 7 |  | 1 |  | 8
PCH Dona Rita | Sep. 2013 |  | 2.41 |  | 2 |  | 0 |  | 2
PCH Tronqueiras | July 2015 |  | 8.50 |  | 10 |  | 1 |  | 11
PCH Joasal | July 2015 |  | 8.40 |  | 8 |  | 1 |  | 9
PCH Martins | July 2015 |  | 7.70 |  | 6 |  | 1 |  | 7
PCH Cajuru | July 2015 |  | 7.20 |  | 23 |  | 3 |  | 26
PCH Paciência | July 2015 |  | 4.08 |  | 5 |  | 0 |  | 5
PCH Marmelos | July 2015 |  | 4.00 |  | 3 |  | 0 |  | 3
Other |  |  |  |  |  |  |  |  |
UHE Volta Grande | Feb. 2017 |  | 380.00 |  | 0 |  | 0 |  | 0
UHE Miranda | Dec. 2016 |  | 408.00 |  | 110 |  | 12 |  | 122
UHE Jaguara | Aug. 2013 |  | 424.00 |  | 168 |  | 19 |  | 187
UHE São Simão | Jan. 2015 |  | 1,710.00 |  | 87 |  | 10 |  | 97
|  |  | 3,601.70 |  | 785 |  | 86 |  | 871
ANNUAL REPORT AND FORM 20-F | 2024 | F-50
Table of Contents

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- Definition Concession Financial And Sector Assets And Liabilities Abstract + References No definition available. + Details
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- Definition Disclosure Of Auction Won Transferred To Related Specific Purpose Companies Explanatory + References No definition available. + Details
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- Definition Disclosure Of Financial Assets And Financial Liabilities With The Tariff Adjustments Explanatory + References No definition available. + Details
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