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Net Operating Revenue (Details 4) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Net Operating Revenue [Line Items] |  |  |
Regulatory charges | R$ (2,683,329) | R$ (2,659,092) | R$ (2,670,262)
National Electric Energy Agency [Member] |  |  |
Net Operating Revenue [Line Items] |  |  |
Regulatory charges | R$ (2,416,817) | (2,385,578) | (2,505,319)
National Electric Energy Agency [Member] | Quotas [Member] |  |  |
Net Operating Revenue [Line Items] |  |  |
Description of identity of rate regulator(s) | Quotas (a) |  |
Regulatory charges | R$ (2,310,894) | (2,201,372) | (2,321,875)
National Electric Energy Agency [Member] | Covid Account [Member] |  |  |
Net Operating Revenue [Line Items] |  |  |
Description of identity of rate regulator(s) | Covid Account (b) |  |
Regulatory charges | R$ (103,952) | (183,444) | (183,444)
National Electric Energy Agency [Member] | Water Shortage [Member] |  |  |
Net Operating Revenue [Line Items] |  |  |
Description of identity of rate regulator(s) | Water shortage (c) |  |
Regulatory charges | R$ (1,971) | (1,725) | 0
National Electric Energy Agency [Member] | Preliminary Injunctions [Member] |  |  |
Net Operating Revenue [Line Items] |  |  |
Description of identity of rate regulator(s) | Preliminary injunctions (e) |  |
Regulatory charges | R$ 0 | (963) | 0
National Electric Energy Agency One [Member] |  |  |
Net Operating Revenue [Line Items] |  |  |
Regulatory charges | R$ (266,512) | (273,514) | (164,943)
National Electric Energy Agency One [Member] | Covid Account [Member] |  |  |
Net Operating Revenue [Line Items] |  |  |
Description of identity of rate regulator(s) | Covid Account (b) |  |
Regulatory charges | R$ (93,468) | (164,943) | (164,943)
National Electric Energy Agency One [Member] | Water Shortage [Member] |  |  |
Net Operating Revenue [Line Items] |  |  |
Description of identity of rate regulator(s) | Water shortage (c) |  |
Regulatory charges | R$ (49,661) | (43,453) | 0
National Electric Energy Agency One [Member] | Distributed Generation [Member] |  |  |
Net Operating Revenue [Line Items] |  |  |
Description of identity of rate regulator(s) | Distributed Generation (d) |  |
Regulatory charges | R$ (123,383) | R$ (65,118) | R$ 0

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- Definition The description of the identity of the rate regulator(s). A rate regulator is an authorised body that is empowered by statute or regulation to establish the rate or a range of rates that bind an entity. The rate regulator may be a third-party body or a related party of the entity, including the entity’s own governing board, if that body is required by statute or regulation to set rates both in the interest of the customers and to ensure the overall financial viability of the entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 14 -IssueDate 2024-01-01 -Paragraph 30 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=14&code=ifrs-tx-2024-en-r&anchor=para_30_b&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of charges related to transmission of energy. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
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