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37 Commitments (Details) - BRL (R$) R$ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Energy Purchase and Transportation Contracts [member] |  |
DisclosureOfCommitmentsLineItems [Line Items] |  |
Commitments | R$ 132,879,053 | R$ 137,279,155
Construction of Transmission Grid and Substations [member] |  |
DisclosureOfCommitmentsLineItems [Line Items] |  |
Commitments | 12,062 | 115,732
Construction Of Cutia Wind Farm [member] |  |
DisclosureOfCommitmentsLineItems [Line Items] |  |
Commitments | 330,257 |
Construction Of SHP Bela Vista [member] |  |
DisclosureOfCommitmentsLineItems [Line Items] |  |
Commitments | 23,717 | 111,481
Telecommunications Works [member] |  |
DisclosureOfCommitmentsLineItems [Line Items] |  |
Commitments | 132,430 | 90,769
Acquisition Of Assets For Electricity Distribution [member] |  |
DisclosureOfCommitmentsLineItems [Line Items] |  |
Commitments | 978,189 | 428,441
Gas Purchase Contracts [member] |  |
DisclosureOfCommitmentsLineItems [Line Items] |  |
Commitments | R$ 655,422 | R$ 859,211

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- Definition The amount of capital commitments for which the entity has entered into a contract. [Refer: Capital commitments] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
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