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16. CONCESSION FINANCIAL AND SECTOR ASSETS AND LIABILITIES (Details Narrative) R$ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Aug. 31, 2018 BRL (R$) | Dec. 31, 2019 BRL (R$) | Dec. 31, 2018 BRL (R$) Plant | Dec. 31, 2017 BRL (R$) | Aug. 16, 2016 BRL (R$)
Disclosure Of Financial Assets and Liabilities Of The Concession [line items] |  |  |  |  |  |
Homologated amount |  |  |  |  |  | R$ 892
Remuneration payment period |  |  |  |  | 8 years |
Extensions of concessions, tariff maximum amount |  |  | R$ 833 | R$ 937 |  |
Extension of the concessions |  |  | 448 | 359 |  |
Net balance of assets deemed cost |  |  | R$ 816 | 816 |  |
Grant acquisition period |  |  | 30 years |  |  |
Pass-throughs of funds |  |  | R$ 361 | 794 | R$ 586 |
Aneel [Member] |  |  |  |  |  |
Disclosure Of Financial Assets and Liabilities Of The Concession [line items] |  |  |  |  |  |
Percentage of regulatory load |  |  | 105.00% |  |  |
Receivable asset |  |  | R$ 216,852 |  |  |
Assets Related To Infrastructure [Member] |  |  |  |  |  |
Disclosure Of Financial Assets and Liabilities Of The Concession [line items] |  |  |  |  |  |
Financial assets |  |  | 5,049 | 4,917 |  |
Transmission Indemnity Receivable [Member] | Assets Related To Infrastructure [Member] |  |  |  |  |  |
Disclosure Of Financial Assets and Liabilities Of The Concession [line items] |  |  |  |  |  |
Financial assets |  |  | 1,281 | R$ 1,296 |  |
Hydro Electric Plant [Member] |  |  |  |  |  |
Disclosure Of Financial Assets and Liabilities Of The Concession [line items] |  |  |  |  |  |
Number of plants | Plant |  |  |  | 18 |  |
Cost of acquisition |  |  | 2,216 |  |  |
Usina Hidreletrica Miranda [Member] |  |  |  |  |  |
Disclosure Of Financial Assets and Liabilities Of The Concession [line items] |  |  |  |  |  |
Net balance of assets deemed cost | [1] |  | 23 |  |  |
Usina Hidreletrica Jaguara [Member] |  |  |  |  |  |
Disclosure Of Financial Assets and Liabilities Of The Concession [line items] |  |  |  |  |  |
Net balance of assets deemed cost | [1] |  | 174 |  |  |
Usina Hidreletrica Sao Simao [Member] |  |  |  |  |  |
Disclosure Of Financial Assets and Liabilities Of The Concession [line items] |  |  |  |  |  |
Net balance of assets deemed cost | [1] |  | R$ 3 |  |  |
Sao Simao and Miranda Plants [Member] |  |  |  |  |  |
Disclosure Of Financial Assets and Liabilities Of The Concession [line items] |  |  |  |  |  |
Generation - Indemnity receivable |  | R$ 1,139 |  |  |  |
Other Disposals Of Assets [Member] | Free Market [Member] |  |  |  |  |  |
Disclosure Of Financial Assets and Liabilities Of The Concession [line items] |  |  |  |  |  |
Output sales percentage |  |  | 30.00% |  |  |
Other Disposals Of Assets [Member] | Regulated Market [Member] |  |  |  |  |  |
Disclosure Of Financial Assets and Liabilities Of The Concession [line items] |  |  |  |  |  |
Output sales percentage |  |  | 70.00% |  |  |
[1] | Investments made after the Jaguara, Sao Simao and Miranda plants came into operation, in the amounts of R$174, R$3 and R$23, respectively, are recorded as concession financial assets, and the determination of the final amounts to be paid to the Company is in a process of discussion with Aneel (the regulator). Company does not expect losses in realization of these amounts.

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