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10 Accounts Receivables - Concessions (Details Narrative) - BRL (R$) R$ in Thousands | Apr. 11, 2017 | Jan. 05, 2016
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Brazilian Electricity Regulatory Agency (ANEEL) [Member] |  |
Accounts Receivable Concessions [Line Items] |  |
Reduction on RAP cycle | R$ 201,795 |
Concession Agreement [Member] | HPP GPS [Member] | Bonus From The Grant Of Concession Agreements Under The Quota System [Member] |  |
Accounts Receivable Concessions [Line Items] |  |
Concession agreement term |  | P30Y
Bonus paid |  | R$ 574,827
Description of proportion of electric energy sold |  | 70% of the power in the ACR and 30% in the free environment - ACL.

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