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Net Sectorial Financial Assets and Liabilities (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | R$ (473,045) | R$ (101,857)
Operating revenues, constitution | (393,339) | 175,359
Operating revenues, amortization | 1,317,063 | 894,837
Financial results, updating | 8,847 | 58,253
Rate flags | (332,126) | (56,752)
Statement of financial position constitution | (1,205,210) | (1,442,885)
Net sectorial financial assets and liabilities, ending | (1,077,810) | (473,045)
Net sectorial financial assets and liabilities, beginning | (1,077,810) | (473,045)
Sectorial financial assets, current, beginning | 15,473 | 190,699
Sectorial financial assets, current, ending | 0 | 15,473
Other non-current financial assets, beginning | 15,473 | 190,699
Other non-current financial assets, ending | 0 | 15,473
Other current financial liabilities, beginning | (476,103) | (433,914)
Other current financial liabilities, ending | (935,322) | (476,103)
Other current non-financial liabilities, beginning | 27,888 | 49,341
Other current non-financial liabilities, ending | 142,488 | 27,888
Electricity Purchased For Resale Itaipu [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | 106,561 | 819,649
Net sectorial financial assets and liabilities, ending | 78,793 | 106,561
Net sectorial financial assets and liabilities, beginning | 78,793 | 106,561
C V A Energ [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | (557,165) | (582,059)
Net sectorial financial assets and liabilities, ending | (62,125) | (557,165)
Net sectorial financial assets and liabilities, beginning | (62,125) | (557,165)
Transport of energy using the transmission system - basic grid |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | 601,157 | 253,766
Net sectorial financial assets and liabilities, ending | 402,396 | 601,157
Net sectorial financial assets and liabilities, beginning | 402,396 | 601,157
Transport Of Energy Purchased From Itaipu [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | 54,593 | 10,706
Net sectorial financial assets and liabilities, ending | 29,570 | 54,593
Net sectorial financial assets and liabilities, beginning | 29,570 | 54,593
E S S [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | 142,484 | 227,329
Net sectorial financial assets and liabilities, ending | 112,687 | 142,484
Net sectorial financial assets and liabilities, beginning | 112,687 | 142,484
C D E [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | 1,280 | 200,493
Net sectorial financial assets and liabilities, ending | (64,790) | 1,280
Net sectorial financial assets and liabilities, beginning | (64,790) | 1,280
Proinfa [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | (14,495) | 42,078
Net sectorial financial assets and liabilities, ending | (7,721) | (14,495)
Net sectorial financial assets and liabilities, beginning | (7,721) | (14,495)
Refunds Of Pis And Cofins [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | (702,895) | (765,573)
Net sectorial financial assets and liabilities, ending | (568,455) | (702,895)
Net sectorial financial assets and liabilities, beginning | (568,455) | (702,895)
Neutrality [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | (19,622) | 98,598
Net sectorial financial assets and liabilities, ending | (276,986) | (19,622)
Net sectorial financial assets and liabilities, beginning | (276,986) | (19,622)
Offset Of Energy Surplus Deficit Under C C E A R Bilateral Contracts [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | 0 | (186)
Net sectorial financial assets and liabilities, ending |  | 0
Net sectorial financial assets and liabilities, beginning |  | 0
Hydrological Risk [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | (475,400) | (524,806)
Net sectorial financial assets and liabilities, ending | (481,262) | (475,400)
Net sectorial financial assets and liabilities, beginning | (481,262) | (475,400)
Tariff Refunds [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | (181,607) | (175,460)
Net sectorial financial assets and liabilities, ending | (172,956) | (181,607)
Net sectorial financial assets and liabilities, beginning | (172,956) | (181,607)
Overcontracting [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | 634,193 | 436,324
Net sectorial financial assets and liabilities, ending | 234,070 | 634,193
Net sectorial financial assets and liabilities, beginning | 234,070 | 634,193
Itaipu Bonus [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | (3,243) | 4,943
Net sectorial financial assets and liabilities, ending | 0 | (3,243)
Net sectorial financial assets and liabilities, beginning | 0 | (3,243)
Water Shortage Account [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | 0 | (71,188)
Net sectorial financial assets and liabilities, ending |  | 0
Net sectorial financial assets and liabilities, beginning |  | 0
C D E Eletrobras [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | (41,882) | (184,100)
Net sectorial financial assets and liabilities, ending | (38,891) | (41,882)
Net sectorial financial assets and liabilities, beginning | (38,891) | (41,882)
Others [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | (17,004) | 107,629
Net sectorial financial assets and liabilities, ending | (19,768) | (17,004)
Net sectorial financial assets and liabilities, beginning | (19,768) | (17,004)
Portion A [Member] | Electricity Purchased For Resale Itaipu [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, constitution | 73,899 | (70,066)
Operating revenues, amortization | (108,421) | (702,517)
Financial results, updating | 6,754 | 59,495
Rate flags | 0 |
Statement of financial position constitution | 0 |
Portion A [Member] | C V A Energ [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, constitution | 153,184 | (444,221)
Operating revenues, amortization | 466,293 | 555,568
Financial results, updating | (43,429) | (86,565)
Rate flags | (81,008) | 112
Statement of financial position constitution | 0 |
Portion A [Member] | Transport of energy using the transmission system - basic grid |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, constitution | 258,551 | 540,084
Operating revenues, amortization | (515,559) | (244,243)
Financial results, updating | 58,247 | 51,550
Rate flags | 0 |
Statement of financial position constitution | 0 |
Portion A [Member] | Transport Of Energy Purchased From Itaipu [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, constitution | 15,689 | 50,824
Operating revenues, amortization | (46,482) | (10,188)
Financial results, updating | 5,770 | 3,251
Rate flags | 0 |
Statement of financial position constitution | 0 |
Portion A [Member] | E S S [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, constitution | 128,496 | 271,566
Operating revenues, amortization | (103,966) | (323,495)
Financial results, updating | 11,938 | 23,651
Rate flags | (66,265) | (56,567)
Statement of financial position constitution | 0 |
Portion A [Member] | C D E [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, constitution | (50,074) | (55,037)
Operating revenues, amortization | (18,442) | (149,314)
Financial results, updating | 2,446 | 5,138
Rate flags | 0 |
Statement of financial position constitution | 0 |
Portion A [Member] | Proinfa [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, constitution | (15,485) | (32,344)
Operating revenues, amortization | 23,969 | (22,660)
Financial results, updating | (1,710) | (1,569)
Rate flags | 0 |
Statement of financial position constitution | 0 |
Other Financial Components [Member] | Refunds Of Pis And Cofins [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, constitution | 0 |
Operating revenues, amortization | 1,317,355 | 1,525,351
Financial results, updating | 0 |
Rate flags | 0 |
Statement of financial position constitution | (1,182,915) | (1,462,673)
Other Financial Components [Member] | Neutrality [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, constitution | (395,710) | (41,000)
Operating revenues, amortization | 154,354 | (79,292)
Financial results, updating | (16,008) | 2,072
Rate flags | 0 |
Statement of financial position constitution | 0 |
Other Financial Components [Member] | Offset Of Energy Surplus Deficit Under C C E A R Bilateral Contracts [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, amortization |  | 186
Other Financial Components [Member] | Hydrological Risk [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, constitution | (430,730) | (431,385)
Operating revenues, amortization | 445,336 | 504,007
Financial results, updating | (20,468) | (23,216)
Rate flags | 0 |
Statement of financial position constitution | 0 |
Other Financial Components [Member] | Tariff Refunds [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, constitution | (97,904) | (92,589)
Operating revenues, amortization | 113,258 | 96,560
Financial results, updating | (6,703) | (10,118)
Rate flags | 0 |
Statement of financial position constitution | 0 |
Other Financial Components [Member] | Overcontracting [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, constitution | 150,068 | 327,874
Operating revenues, amortization | (390,911) | (176,556)
Financial results, updating | 25,573 | 46,848
Rate flags | (184,853) | (297)
Statement of financial position constitution | 0 |
Other Financial Components [Member] | Itaipu Bonus [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, constitution | 0 | (68)
Operating revenues, amortization | (55,741) | (66,026)
Financial results, updating | 0 | (1,076)
Rate flags | 0 |
Statement of financial position constitution | 58,984 | 58,984
Other Financial Components [Member] | Water Shortage Account [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, amortization |  | 71,188
Other Financial Components [Member] | C D E Eletrobras [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, constitution | 66,074 | 165,167
Operating revenues, amortization | 22,929 | 24,583
Financial results, updating | (4,733) | (8,336)
Rate flags | 0 |
Statement of financial position constitution | (81,279) | (39,196)
Other Financial Components [Member] | Tariff mitigation mechanism [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Net sectorial financial assets and liabilities, beginning | 0 |
Operating revenues, constitution | (234,789) |
Financial results, updating | (7,583) |
Net sectorial financial assets and liabilities, ending | (242,372) | 0
Net sectorial financial assets and liabilities, beginning | (242,372) | 0
Other Financial Components [Member] | Others [Member] |  |
Disclosure of assets and liabilities with significant risk of material adjustment [line items] |  |
Operating revenues, constitution | (14,608) | (13,446)
Operating revenues, amortization | 13,091 | (108,315)
Financial results, updating | (1,247) | R$ (2,872)
Rate flags | 0 |
Statement of financial position constitution | R$ 0 |

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