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25 Research and Development and Energy Efficiency (Details 1) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
DisclosureOfChangesInResearchAndDevelopmentAndEnergyEfficiencyLineItems [Line Items] |  |
Research and development and energy efficiency, beginning | R$ 592,735 | R$ 532,475
Effect of acquisition of control of Costa Oeste and Marumbi | 1,494 | 499
Additions | 127,432 | 123,306
Performance agreement | 3,246 | 2,063
Interest rate | 24,570 | 25,407
Payments | (54,166) | (47,575)
Concluded projects | (37,140) | (43,440)
Research and development and energy efficiency, ending | 658,171 | 592,735
FNDCT [Member] |  |
DisclosureOfChangesInResearchAndDevelopmentAndEnergyEfficiencyLineItems [Line Items] |  |
Research and development and energy efficiency, beginning | 4,725 | 5,232
Effect of acquisition of control of Costa Oeste and Marumbi | 20 | 23
Additions | 32,311 | 31,186
Performance agreement |  | 0
Interest rate |  | 0
Payments | (33,010) | (31,716)
Concluded projects |  | 0
Research and development and energy efficiency, ending | 4,046 | 4,725
MME [Member] |  |
DisclosureOfChangesInResearchAndDevelopmentAndEnergyEfficiencyLineItems [Line Items] |  |
Research and development and energy efficiency, beginning | 2,361 | 2,616
Effect of acquisition of control of Costa Oeste and Marumbi | 10 | 9
Additions | 16,155 | 15,595
Performance agreement |  | 0
Interest rate |  | 0
Payments | (16,503) | (15,859)
Concluded projects |  | 0
Research and development and energy efficiency, ending | 2,023 | 2,361
P&D [Member] |  |
DisclosureOfChangesInResearchAndDevelopmentAndEnergyEfficiencyLineItems [Line Items] |  |
Research and development and energy efficiency, beginning | 327,626 | 316,121
Effect of acquisition of control of Costa Oeste and Marumbi | 1,464 | 467
Additions | 32,312 | 31,188
Performance agreement |  | 0
Interest rate | 10,627 | 12,627
Payments |  | 0
Concluded projects | (30,371) | (32,777)
Research and development and energy efficiency, ending | 341,658 | 327,626
Procel [Member] |  |
DisclosureOfChangesInResearchAndDevelopmentAndEnergyEfficiencyLineItems [Line Items] |  |
Research and development and energy efficiency, beginning | 15,792 | 6,041
Effect of acquisition of control of Costa Oeste and Marumbi |  | 0
Additions | 9,333 | 9,067
Performance agreement |  | 0
Interest rate | 51 | 684
Transfers | (3,123) |
Payments | (5,643) | 0
Concluded projects |  | 0
Research and development and energy efficiency, ending | 16,410 | 15,792
PEE [Member] |  |
DisclosureOfChangesInResearchAndDevelopmentAndEnergyEfficiencyLineItems [Line Items] |  |
Research and development and energy efficiency, beginning | 242,231 | 202,465
Effect of acquisition of control of Costa Oeste and Marumbi |  | 0
Additions | 37,321 | 36,270
Performance agreement | 3,246 | 2,063
Interest rate | 13,892 | 12,096
Transfers | 3,123 |
Payments | 990 | 0
Concluded projects | (6,769) | (10,663)
Research and development and energy efficiency, ending | R$ 294,034 | R$ 242,231

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