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Concession Financial and Sector Assets and Liabilities - Schedule of Generation Indemnity Receivable (Details) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 BRL (R$) MW
IfrsStatementLineItems [Line Items] |
Installed capacity (MW) | MW | 3,601.7
Net balance of assets | R$ 785
Financial Update | 86
Net balance of assets | R$ 871
Usina hidreletrica tress marias [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | July 2015
Installed capacity (MW) | MW | 396
Net balance of assets | R$ 203
Financial Update | 22
Net balance of assets | R$ 225
Usina hidreletrica salto grande [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | July 2015
Installed capacity (MW) | MW | 102
Net balance of assets | R$ 104
Financial Update | 11
Net balance of assets | R$ 115
Usina hidreletrica itutinga [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | July 2015
Installed capacity (MW) | MW | 52
Net balance of assets | R$ 12
Financial Update | 1
Net balance of assets | R$ 13
Usina hidreletrica camargos [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | July 2015
Installed capacity (MW) | MW | 46
Net balance of assets | R$ 24
Financial Update | 2
Net balance of assets | R$ 26
Cemig PCH piau [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | July 2015
Installed capacity (MW) | MW | 18.01
Net balance of assets | R$ 6
Financial Update | 1
Net balance of assets | R$ 7
Cemig PCH gafanhoto [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | July 2015
Installed capacity (MW) | MW | 14
Net balance of assets | R$ 7
Financial Update | 1
Net balance of assets | R$ 8
Cemig PCH peti [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | July 2015
Installed capacity (MW) | MW | 9.4
Net balance of assets | R$ 7
Financial Update | 1
Net balance of assets | R$ 8
Cemig PCH dona rita [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | Sep. 2013
Installed capacity (MW) | MW | 2.41
Net balance of assets | R$ 2
Financial Update | 0
Net balance of assets | R$ 2
Cemig PCH tronqueiras [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | July 2015
Installed capacity (MW) | MW | 8.5
Net balance of assets | R$ 10
Financial Update | 1
Net balance of assets | R$ 11
Cemig PCH joasal [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | July 2015
Installed capacity (MW) | MW | 8.4
Net balance of assets | R$ 8
Financial Update | 1
Net balance of assets | R$ 9
Cemig PCH martins [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | July 2015
Installed capacity (MW) | MW | 7.7
Net balance of assets | R$ 6
Financial Update | 1
Net balance of assets | R$ 7
Cemig PCH cajuru [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | July 2015
Installed capacity (MW) | MW | 7.2
Net balance of assets | R$ 23
Financial Update | 3
Net balance of assets | R$ 26
Cemig PCH paciencia [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | July 2015
Installed capacity (MW) | MW | 4.08
Net balance of assets | R$ 5
Financial Update | 0
Net balance of assets | R$ 5
Cemig PCH marmelos [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | July 2015
Installed capacity (MW) | MW | 4
Net balance of assets | R$ 3
Financial Update | 0
Net balance of assets | R$ 3
Usina hidreletrica volta grande [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | Feb. 2017
Installed capacity (MW) | MW | 380
Net balance of assets | R$ 0
Financial Update | 0
Net balance of assets | R$ 0
Usina hidreletrica miranda [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | Dec. 2016
Installed capacity (MW) | MW | 408
Net balance of assets | R$ 110
Financial Update | 12
Net balance of assets | R$ 122
Usina hidreletrica jaguara [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | Aug. 2013
Installed capacity (MW) | MW | 424
Net balance of assets | R$ 168
Financial Update | 19
Net balance of assets | R$ 187
Usina hidreletrica sao simao [member] |
IfrsStatementLineItems [Line Items] |
Concession expiration date | Jan. 2015
Installed capacity (MW) | MW | 1,710
Net balance of assets | R$ 87
Financial Update | 10
Net balance of assets | R$ 97

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