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5. OPERATING SEGMENTS (Details 1) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of revenue [line items] |  |  |
Revenue from supply of energy | R$ 26,928 | R$ 24,872 | R$ 23,701
Revenue from Use of Distribution Systems (the TUSD charge) | 2,722 | 2,045 | 1,611
CVA and Other financial components in tariff adjustment | 58 | 1,973 | 988
Transmission concession revenue | 504 | 411 | 371
Transmission construction revenue | 220 | 96 | 25
Concession assets - indemnity revenue |  | 250 | 373
Generation assets - indemnity revenue |  | 55 | 271
Transmission assets - indemnity revenue | 156 |  |
Distribution construction revenue | 980 | 802 | 1,094
Adjustment to expectation of cash flow from Financial assets of distribution concession to be indemnified | 18 |  | 9
Gain on inflation updating of concession grant fee | 318 | 321 | 317
Transactions in energy on the CCEE | 432 | 217 | 860
Supply of gas | 2,298 | 1,995 | 1,759
Fine for violation of continuity indicator | (58) | (44) |
PIS/Pasep and Cofins taxes credits over ICMS | 1,428 |  |
Other operating revenues | 1,722 | 1,585 | 1,484
Sector / Regulatory charges reported as Deductions from revenue | (12,336) | (12,312) | (11,151)
Net operating revenue | 25,390 | 22,266 | 21,712
Operating Segments [Member] | Elimination Segments [Member] |  |  |
Disclosure of revenue [line items] |  |  |
Revenue from supply of energy | (77) | (78) | (81)
Revenue from Use of Distribution Systems (the TUSD charge) | (24) | (22) | (32)
CVA and Other financial components in tariff adjustment |  |  |
Transmission concession revenue | (199) | (178) | (148)
Transmission construction revenue |  |  |
Transmission assets - indemnity revenue |  |  |
Distribution construction revenue |  |  |
Adjustment to expectation of cash flow from Financial assets of distribution concession to be indemnified |  |  |
Gain on inflation updating of concession grant fee |  |  |
Transactions in energy on the CCEE |  |  |
Supply of gas |  |  |
Fine for violation of continuity indicator |  |  |
PIS/Pasep and Cofins taxes credits over ICMS |  |  |
Other operating revenues | (7) | (15) | (26)
Sector / Regulatory charges reported as Deductions from revenue |  |  |
Net operating revenue | (307) | (293) | (288)
Operating Segments [Member] | Energy Distribution Segment [Member] |  |  |
Disclosure of revenue [line items] |  |  |
Revenue from supply of energy | 19,967 | 17,885 | 16,442
Revenue from Use of Distribution Systems (the TUSD charge) | 2,746 | 2,067 | 1,643
CVA and Other financial components in tariff adjustment | 58 | 1,973 | 988
Transmission concession revenue |  |  |
Transmission construction revenue |  |  |
Transmission assets - indemnity revenue |  |  |
Distribution construction revenue | 937 | 757 | 1,045
Adjustment to expectation of cash flow from Financial assets of distribution concession to be indemnified | 18 |  | 9
Gain on inflation updating of concession grant fee |  |  |
Transactions in energy on the CCEE | (7) |  |
Supply of gas |  |  |
Fine for violation of continuity indicator | (58) | (44) |
PIS/Pasep and Cofins taxes credits over ICMS | 830 |  |
Other operating revenues | 1,469 | 1,345 | 1,175
Sector / Regulatory charges reported as Deductions from revenue | (10,041) | (10,226) | (9,177)
Net operating revenue | 15,919 | 13,757 | 12,125
Operating Segments [Member] | Energy Transmission Segment [Member] |  |  |
Disclosure of revenue [line items] |  |  |
Revenue from supply of energy |  |  |
Revenue from Use of Distribution Systems (the TUSD charge) |  |  |
CVA and Other financial components in tariff adjustment |  |  |
Transmission concession revenue | 703 | 589 | 519
Transmission construction revenue | 220 | 96 | 25
Concession assets - indemnity revenue |  | 250 | 373
Transmission assets - indemnity revenue | 156 |  |
Distribution construction revenue |  |  |
Adjustment to expectation of cash flow from Financial assets of distribution concession to be indemnified |  |  |
Gain on inflation updating of concession grant fee |  |  |
Transactions in energy on the CCEE |  |  |
Supply of gas |  |  |
Fine for violation of continuity indicator |  |  |
PIS/Pasep and Cofins taxes credits over ICMS |  |  |
Other operating revenues | 27 | 29 | 9
Sector / Regulatory charges reported as Deductions from revenue | (392) | (288) | (167)
Net operating revenue | 714 | 676 | 777
Operating Segments [Member] | Other Segments [Member] |  |  |
Disclosure of revenue [line items] |  |  |
Revenue from supply of energy |  |  |
Revenue from Use of Distribution Systems (the TUSD charge) |  |  |
CVA and Other financial components in tariff adjustment |  |  |
Transmission concession revenue |  |  |
Transmission construction revenue |  |  |
Transmission assets - indemnity revenue |  |  |
Distribution construction revenue |  |  |
Adjustment to expectation of cash flow from Financial assets of distribution concession to be indemnified |  |  |
Gain on inflation updating of concession grant fee |  |  |
Transactions in energy on the CCEE |  |  |
Supply of gas |  |  |
Fine for violation of continuity indicator |  |  |
PIS/Pasep and Cofins taxes credits over ICMS | 184 |  |
Other operating revenues | 152 | 144 | 120
Sector / Regulatory charges reported as Deductions from revenue | (12) | (11) | (9)
Net operating revenue | 324 | 134 | 112
Operating Segments [Member] | Gas Segment [Member] |  |  |
Disclosure of revenue [line items] |  |  |
Revenue from supply of energy |  |  |
Revenue from Use of Distribution Systems (the TUSD charge) |  |  |
CVA and Other financial components in tariff adjustment |  |  |
Transmission concession revenue |  |  |
Transmission construction revenue |  |  |
Transmission assets - indemnity revenue |  |  |
Distribution construction revenue | 43 | 45 | 49
Adjustment to expectation of cash flow from Financial assets of distribution concession to be indemnified |  |  |
Gain on inflation updating of concession grant fee |  |  |
Transactions in energy on the CCEE |  |  |
Supply of gas | 2,298 | 1,995 | 1,759
Fine for violation of continuity indicator |  |  |
PIS/Pasep and Cofins taxes credits over ICMS |  |  |
Other operating revenues |  |  | 1
Sector / Regulatory charges reported as Deductions from revenue | (483) | (421) | (327)
Net operating revenue | 1,858 | 1,619 | 1,482
Operating Segments [Member] | Energy Generation Segment [Member] |  |  |
Disclosure of revenue [line items] |  |  |
Revenue from supply of energy | 7,038 | 7,065 | 7,340
Revenue from Use of Distribution Systems (the TUSD charge) |  |  |
CVA and Other financial components in tariff adjustment |  |  |
Transmission concession revenue |  |  |
Transmission construction revenue |  |  |
Generation assets - indemnity revenue |  | 55 | 271
Transmission assets - indemnity revenue |  |  |
Distribution construction revenue |  |  |
Adjustment to expectation of cash flow from Financial assets of distribution concession to be indemnified |  |  |
Gain on inflation updating of concession grant fee | 318 | 321 | 317
Transactions in energy on the CCEE | 439 | 217 | 860
Supply of gas |  |  |
Fine for violation of continuity indicator |  |  |
PIS/Pasep and Cofins taxes credits over ICMS | 414 |  |
Other operating revenues | 81 | 81 | 37
Sector / Regulatory charges reported as Deductions from revenue | (1,408) | (1,366) | (1,430)
Net operating revenue | R$ 6,882 | R$ 6,374 | 7,190
Operating Segments [Member] | Telecommunications Segment [Member] |  |  |
Disclosure of revenue [line items] |  |  |
Other operating revenues |  |  | 168
Sector / Regulatory charges reported as Deductions from revenue |  |  | (41)
Net operating revenue |  |  | R$ 127

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