INVESTMENTS - Change of investments (Details) - BRL (R$)
R$ in Thousands |
12 Months Ended |
Dec. 31, 2025 |
Dec. 31, 2024 |
| EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Balance at the beginning of the period |
R$ 30,727,405
|
R$ 32,100,302
|
| Capital reduction/ increase and others |
247,695
|
(42,125)
|
| Transfer held for sale |
(8,325,770)
|
2,997,585
|
| Other comprehensive results |
5,164
|
260,731
|
| Dividends and interest on equity |
(1,185,042)
|
(1,221,677)
|
| Equity equivalence |
1,730,026
|
2,420,421
|
| (Constitutions) Reversals of estimated losses |
123,337
|
207,338
|
| Balance at the end of the period |
23,322,816
|
30,727,405
|
| Associates |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Balance at the beginning of the period |
13,695,409
|
14,465,784
|
| Capital reduction/ increase and others |
|
3,519
|
| Transfer held for sale |
|
2,279,664
|
| Other comprehensive results |
|
224,592
|
| Dividends and interest on equity |
|
(640,618)
|
| Equity equivalence |
|
1,921,796
|
| Balance at the end of the period |
|
13,695,409
|
| Associates | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Balance at the beginning of the period |
13,695,409
|
|
| Transfer held for sale |
(8,325,770)
|
|
| Other comprehensive results |
25,066
|
|
| Dividends and interest on equity |
(483,827)
|
|
| Equity equivalence |
775,977
|
|
| Balance at the end of the period |
R$ 5,686,855
|
R$ 13,695,409
|
| Eletronuclears |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Percentage of shares in associates |
|
67.95%
|
| Control of acquired, percentage |
67.95%
|
|
| Eletronuclears | COMMON |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Control of acquired, percentage |
35.90%
|
|
| Eletronuclears | PREFERRED |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Control of acquired, percentage |
99.99%
|
|
| Eletronuclears | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Balance at the beginning of the period |
R$ 7,908,603
|
R$ 7,213,354
|
| Transfer held for sale |
(7,824,762)
|
|
| Other comprehensive results |
|
133,068
|
| Equity equivalence |
(83,841)
|
562,181
|
| Balance at the end of the period |
R$ 0
|
R$ 7,908,603
|
| Percentage of shares in associates |
67.95%
|
|
| ISA Energia |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Percentage of shares in associates |
21.63%
|
21.63%
|
| ISA Energia | COMMON |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Percentage of shares in associates |
9.73%
|
|
| ISA Energia | PREFERRED |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Percentage of shares in associates |
29.28%
|
|
| ISA Energia | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Balance at the beginning of the period |
R$ 3,724,184
|
R$ 5,368,079
|
| Capital reduction/ increase and others |
|
(1,511)
|
| Transfer held for sale |
|
2,279,664
|
| Other comprehensive results |
(16,496)
|
87,874
|
| Dividends and interest on equity |
(203,322)
|
(325,103)
|
| Equity equivalence |
489,655
|
874,509
|
| Balance at the end of the period |
R$ 3,994,021
|
3,724,184
|
| Percentage of shares in associates |
21.63%
|
|
| Others |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Balance at the beginning of the period |
R$ 2,062,622
|
1,884,351
|
| Capital reduction/ increase and others |
|
5,030
|
| Other comprehensive results |
|
3,650
|
| Dividends and interest on equity |
|
(315,515)
|
| Equity equivalence |
|
485,106
|
| Balance at the end of the period |
|
2,062,622
|
| Others | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Balance at the beginning of the period |
2,062,622
|
|
| Transfer held for sale |
(501,008)
|
|
| Other comprehensive results |
41,562
|
|
| Dividends and interest on equity |
(280,505)
|
|
| Equity equivalence |
370,163
|
|
| Balance at the end of the period |
R$ 1,692,834
|
R$ 2,062,622
|
| Others | Minimum |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Percentage of shares in associates |
|
33.41%
|
| Others | Minimum | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Percentage of shares in associates |
33.41%
|
|
| Others | Maximum |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Percentage of shares in associates |
|
40.44%
|
| Others | Maximum | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Percentage of shares in associates |
40.07%
|
|
| Total for all joint ventures | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Balance at the beginning of the period |
R$ 17,031,996
|
R$ 17,634,518
|
| Capital reduction/ increase and others |
247,695
|
(45,644)
|
| Transfer held for sale |
0
|
717,921
|
| Other comprehensive results |
(19,902)
|
36,139
|
| Dividends and interest on equity |
(701,215)
|
(581,059)
|
| Equity equivalence |
954,049
|
498,625
|
| (Constitutions) Reversals of estimated losses |
123,337
|
207,338
|
| Balance at the end of the period |
R$ 17,635,960
|
R$ 17,031,996
|
| Norte Energia S.A. - NESA |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
49.98%
|
| Norte Energia S.A. - NESA | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
49.98%
|
|
| Balance at the beginning of the period |
R$ 4,786,242
|
R$ 5,292,261
|
| Equity equivalence |
(767,162)
|
(835,909)
|
| (Constitutions) Reversals of estimated losses |
7,262
|
329,890
|
| Balance at the end of the period |
R$ 4,026,342
|
R$ 4,786,242
|
| Jirau Energia S.A. |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
40.00%
|
| Jirau Energia S.A. | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
40.00%
|
|
| Balance at the beginning of the period |
R$ 3,668,709
|
R$ 3,581,236
|
| Capital reduction/ increase and others |
(300,000)
|
|
| Equity equivalence |
155,417
|
87,473
|
| Balance at the end of the period |
R$ 3,524,126
|
R$ 3,668,709
|
| Belo Monte Transmissora de Energia S.A. - BMTE |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
49.00%
|
| Belo Monte Transmissora de Energia S.A. - BMTE | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
49.00%
|
|
| Balance at the beginning of the period |
R$ 2,336,212
|
R$ 2,151,544
|
| Dividends and interest on equity |
(141,726)
|
(107,223)
|
| Equity equivalence |
232,356
|
291,891
|
| Balance at the end of the period |
R$ 2,426,842
|
R$ 2,336,212
|
| Interligação Elétrica do Madeira S.A. - IE Madeira |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
49.00%
|
| Interligação Elétrica do Madeira S.A. - IE Madeira | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
49.00%
|
|
| Balance at the beginning of the period |
R$ 2,146,398
|
R$ 1,961,829
|
| Other comprehensive results |
(43)
|
|
| Dividends and interest on equity |
(176,106)
|
(49,696)
|
| Equity equivalence |
233,683
|
234,265
|
| Balance at the end of the period |
R$ 2,203,932
|
R$ 2,146,398
|
| Companhia Energética Sinop S.A. - SINOP |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
49.00%
|
| Companhia Energética Sinop S.A. - SINOP | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
49.00%
|
|
| Balance at the beginning of the period |
R$ 617,373
|
R$ 639,077
|
| Dividends and interest on equity |
|
(5,915)
|
| Equity equivalence |
6,331
|
24,934
|
| (Constitutions) Reversals of estimated losses |
34,247
|
(40,723)
|
| Balance at the end of the period |
R$ 657,951
|
617,373
|
| Empresa de Energia São Manoel S.A. | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
33.33%
|
|
| Balance at the beginning of the period |
R$ 498,366
|
|
| Equity equivalence |
(4,198)
|
|
| (Constitutions) Reversals of estimated losses |
81,828
|
|
| Balance at the end of the period |
R$ 575,996
|
R$ 498,366
|
| Tijoá Participações e Investimentos S.A. |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
49.90%
|
| Tijoá Participações e Investimentos S.A. | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
49.90%
|
|
| Balance at the beginning of the period |
R$ 38,885
|
R$ 29,903
|
| Dividends and interest on equity |
(43,073)
|
(33,709)
|
| Equity equivalence |
46,340
|
42,691
|
| Balance at the end of the period |
R$ 42,152
|
R$ 38,885
|
| Interligação Elétrica Garanhuns S.A. - IE Garanhuns |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
49.00%
|
| Interligação Elétrica Garanhuns S.A. - IE Garanhuns | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
49.00%
|
|
| Balance at the beginning of the period |
R$ 561,301
|
R$ 543,270
|
| Dividends and interest on equity |
(48,533)
|
(47,444)
|
| Equity equivalence |
67,154
|
65,475
|
| Balance at the end of the period |
R$ 579,922
|
R$ 561,301
|
| Transnorte Energia S.A. |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
50.38%
|
| Percentage of ownership equity interest acquired control achievement |
66.66%
|
|
| Transnorte Energia S.A. | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
64.61%
|
|
| Balance at the beginning of the period |
R$ 378,379
|
R$ 230,070
|
| Capital reduction/ increase and others |
590,280
|
|
| Equity equivalence |
590,891
|
148,309
|
| Balance at the end of the period |
R$ 1,559,550
|
R$ 378,379
|
| Sistema de Transmissão Nordeste S.A. - STN |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
49.00%
|
| Sistema de Transmissão Nordeste S.A. - STN | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
49.00%
|
|
| Balance at the beginning of the period |
R$ 283,121
|
R$ 264,072
|
| Dividends and interest on equity |
(13,660)
|
(37,416)
|
| Equity equivalence |
18,745
|
56,465
|
| Balance at the end of the period |
R$ 288,206
|
R$ 283,121
|
| Paranaíba Transmissora de Energia S.A. |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
24.50%
|
| Paranaíba Transmissora de Energia S.A. | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
24.50%
|
|
| Balance at the beginning of the period |
R$ 268,624
|
R$ 249,010
|
| Dividends and interest on equity |
(16,227)
|
(8,301)
|
| Equity equivalence |
29,211
|
27,915
|
| Balance at the end of the period |
R$ 281,608
|
R$ 268,624
|
| Enerpeixe S.A. |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
40.00%
|
| Enerpeixe S.A. | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
40.00%
|
|
| Balance at the beginning of the period |
R$ 254,081
|
R$ 263,636
|
| Equity equivalence |
(13,716)
|
(9,555)
|
| Balance at the end of the period |
R$ 240,365
|
R$ 254,081
|
| Chapecoense Geração S.A. |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
40.00%
|
| Chapecoense Geração S.A. | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
40.00%
|
|
| Balance at the beginning of the period |
R$ 268,702
|
R$ 215,378
|
| Dividends and interest on equity |
(199,317)
|
(140,813)
|
| Equity equivalence |
211,119
|
194,137
|
| Balance at the end of the period |
R$ 280,504
|
R$ 268,702
|
| MGE Transmissão S.A. |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
49.00%
|
| MGE Transmissão S.A. | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
49.00%
|
|
| Balance at the beginning of the period |
R$ 211,812
|
R$ 203,715
|
| Dividends and interest on equity |
(14,494)
|
(15,383)
|
| Equity equivalence |
26,739
|
23,480
|
| Balance at the end of the period |
R$ 224,057
|
R$ 211,812
|
| Goiás Transmissão S.A. |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
49.00%
|
| Goiás Transmissão S.A. | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
49.00%
|
|
| Balance at the beginning of the period |
R$ 181,969
|
R$ 191,575
|
| Dividends and interest on equity |
(15,948)
|
(24,498)
|
| Equity equivalence |
18,924
|
14,892
|
| Balance at the end of the period |
R$ 184,945
|
R$ 181,969
|
| Rouar S.A. |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
50.00%
|
| Rouar S.A. | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
50.00%
|
|
| Balance at the beginning of the period |
R$ 154,286
|
R$ 123,443
|
| Other comprehensive results |
(19,859)
|
36,139
|
| Dividends and interest on equity |
(6,109)
|
(11,598)
|
| Equity equivalence |
13,559
|
6,302
|
| Balance at the end of the period |
R$ 141,877
|
R$ 154,286
|
| Vamcruz I Participações S.A |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
49.00%
|
| Vamcruz I Participações S.A | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
49.00%
|
|
| Balance at the beginning of the period |
R$ 134,817
|
R$ 131,599
|
| Dividends and interest on equity |
(918)
|
(486)
|
| Equity equivalence |
3,865
|
3,704
|
| Balance at the end of the period |
R$ 137,764
|
R$ 134,817
|
| Transenergia Renovável S.A. |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
49.00%
|
| Transenergia Renovável S.A. | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
49.00%
|
|
| Balance at the beginning of the period |
R$ 107,180
|
R$ 101,563
|
| Dividends and interest on equity |
(17,551)
|
(1,681)
|
| Equity equivalence |
9,056
|
7,298
|
| Balance at the end of the period |
R$ 98,685
|
107,180
|
| Others | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
49.00%
|
|
| Balance at the beginning of the period |
R$ 135,539
|
148,084
|
| Capital reduction/ increase and others |
(42,585)
|
(45,644)
|
| Transfer held for sale |
|
25,645
|
| Dividends and interest on equity |
(7,553)
|
(7,089)
|
| Equity equivalence |
75,735
|
65,833
|
| Balance at the end of the period |
161,136
|
R$ 135,539
|
| Others | Minimum | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
49.00%
|
| Others | Maximum | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
54.01%
|
| Mata de Santa Genebra Transmissão S.A. |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
49.90%
|
| Mata de Santa Genebra Transmissão S.A. | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Balance at the beginning of the period |
0
|
R$ 733,745
|
| Transfer held for sale |
|
692,276
|
| Dividends and interest on equity |
|
(89,807)
|
| Equity equivalence |
|
48,338
|
| Balance at the end of the period |
|
R$ 0
|
| Empresa de Energia São Manoel S.A. |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
33.33%
|
| Empresa de Energia São Manoel S.A. | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Balance at the beginning of the period |
498,366
|
R$ 579,508
|
| Equity equivalence |
|
687
|
| (Constitutions) Reversals of estimated losses |
|
(81,829)
|
| Balance at the end of the period |
|
R$ 498,366
|
| Serra do Facão Energia |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Shares (%) |
|
54.01%
|
| Serra do Facão Energia | EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY |
|
|
| CHANGES IN INVESTMENTS |
|
|
| Balance at the beginning of the period |
R$ 0
|
|
| Capital reduction/ increase and others |
|
R$ (54,013)
|
| Equity equivalence |
|
54,013
|
| Balance at the end of the period |
|
R$ 0
|