XML 73 R66.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Revenue (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Text block1 [abstract] |
Summary of Net Operating Revenue | The revenue of The Company is as follows:
|  | 2017 |  | 2016 |  | 2015
Revenue from supply of energy (a) |  |  |  | 23,701 |  |  |  |  | 23,430 |  |  |  |  | 22,526 |
Revenue from use of the electricity distribution systems (TUSD) (b) |  |  |  | 1,611 |  |  |  |  | 1,705 |  |  |  |  | 1,465 |
CVA, and Other financial components in tariff increases (c) |  |  |  | 988 |  |  |  |  | (1,455 | ) |  |  |  | 1,704 |
Transmission revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transmission concession revenue (d) |  |  |  | 371 |  |  |  |  | 312 |  |  |  |  | 261 |
Transmission construction revenue (e) |  |  |  | 25 |  |  |  |  | 54 |  |  |  |  | 146 |
Transmission indemnity revenue (g) |  |  |  | 373 |  |  |  |  | 751 |  |  |  |  | 101 |
Generation Indemnity Revenue (h) |  |  |  | 271 |  |  |  |  | — |  |  |  |  | — |
Distribution construction revenue (e) |  |  |  | 1,094 |  |  |  |  | 1,139 |  |  |  |  | 1,106 |
Adjustment to expectation of cash flow from indemnifiable Financial asset of distribution concession (j) |  |  |  | 9 |  |  |  |  | 8 |  |  |  |  | 576 |
Revenue from financial updating of the Concession Grant Fee (f)* |  |  |  | 317 |  |  |  |  | 300 |  |  |  |  | — |
Energy transactions on the CCEE (i) |  |  |  | 860 |  |  |  |  | 161 |  |  |  |  | 2,425 |
Supply of gas |  |  |  | 1,759 |  |  |  |  | 1,444 |  |  |  |  | 1,667 |
Other operating revenues (k) |  |  |  | 1,484 |  |  |  |  | 1,421 |  |  |  |  | 1,440 |
Deductions on revenue (l) |  |  |  | (11,151 | ) |  |  |  | (10,497 | ) |  |  |  | (11,549 | )
Net operating revenue |  |  |  | 21,712 |  |  |  |  | 18,773 |  |  |  |  | 21,868 |
(*) | In 2016, the amounts are presented net of monetary updating of the remaining portion at that time payable for the Concession Grant Fee, which was settled in July 2016.
Summary of the Supply of Electricity by Type of Consumer | This table shows energy supply by type of customer:
|  | GWh (1) |  | R$
| 2017 |  | 2016 |  | 2015 |  | 2017 |  | 2016 |  | 2015
Residential |  |  |  | 10,008 |  |  |  |  | 9,916 |  |  |  |  | 9,830 |  |  |  |  | 7,842 |  |  |  |  | 7,819 |  |  |  |  | 7,297 |
Industrial |  |  |  | 17,761 |  |  |  |  | 19,494 |  |  |  |  | 22,969 |  |  |  |  | 4,907 |  |  |  |  | 5,396 |  |  |  |  | 5,781 |
Commercial, Services and Others |  |  |  | 7,507 |  |  |  |  | 6,573 |  |  |  |  | 6,434 |  |  |  |  | 4,342 |  |  |  |  | 4,359 |  |  |  |  | 3,956 |
Rural |  |  |  | 3,651 |  |  |  |  | 3,575 |  |  |  |  | 3,380 |  |  |  |  | 1,629 |  |  |  |  | 1,463 |  |  |  |  | 1,407 |
Public authorities |  |  |  | 866 |  |  |  |  | 886 |  |  |  |  | 892 |  |  |  |  | 532 |  |  |  |  | 545 |  |  |  |  | 548 |
Public lighting |  |  |  | 1,367 |  |  |  |  | 1,350 |  |  |  |  | 1,326 |  |  |  |  | 537 |  |  |  |  | 528 |  |  |  |  | 533 |
Public services |  |  |  | 1,301 |  |  |  |  | 1,252 |  |  |  |  | 1,204 |  |  |  |  | 589 |  |  |  |  | 547 |  |  |  |  | 540 |
Subtotal |  |  |  | 42,461 |  |  |  |  | 43,046 |  |  |  |  | 46,035 |  |  |  |  | 20,378 |  |  |  |  | 20,657 |  |  |  |  | 20,062 |
Own consumption |  |  |  | 37 |  |  |  |  | 37 |  |  |  |  | 38 |  |  |  |  | — |  |  |  |  | — |  |  |  |  | — |
Unbilled revenue |  |  |  | — |  |  |  |  | — |  |  |  |  | — |  |  |  |  | 61 |  |  |  |  | (199 | ) |  |  |  | 257 |
|  |  |  | 42,498 |  |  |  |  | 43,083 |  |  |  |  | 46,073 |  |  |  |  | 20,439 |  |  |  |  | 20,458 |  |  |  |  | 20,319 |
Wholesale supply to other concession holders (2) |  |  |  | 12,777 |  |  |  |  | 12,509 |  |  |  |  | 10,831 |  |  |  |  | 1,727 |  |  |  |  | 2,713 |  |  |  |  | 2,358 |
Wholesale supply unbilled, net |  |  |  | — |  |  |  |  | — |  |  |  |  | — |  |  |  |  | 1,535 |  |  |  |  | 259 |  |  |  |  | (151 | )
Total |  |  |  | 55,275 |  |  |  |  | 55,592 |  |  |  |  | 56,904 |  |  |  |  | 23,701 |  |  |  |  | 23,430 |  |  |  |  | 22,526 |
(1) | Data not audited by external auditors.
(2) | Includes a CCEAR (Regulated Market Sales Contract), ‘bilateral contracts’ with other agents, and the revenues from management of generation assets (GAG) for the 18 hydroelectric plants of Lot D of Auction no 12/2015.
Summary of Other Operating Revenues |
| Other operating revenues
|  | 2017 |  |  | 2016 |  |  | 2015 |
Charged service |  |  | 10 |  |  |  | 6 |  |  |  | 14 |
Telecoms services |  |  | 149 |  |  |  | 137 |  |  |  | 134 |
Services rendered |  |  | 156 |  |  |  | 167 |  |  |  | 131 |
Subsidies (*) |  |  | 1,034 |  |  |  | 1,001 |  |  |  | 996 |
Rental and leasing |  |  | 121 |  |  |  | 105 |  |  |  | 93 |
Other |  |  | 14 |  |  |  | 5 |  |  |  | 72 |
|  |  | 1,484 |  |  |  | 1,421 |  |  |  | 1,440 |
(*) | Revenue recognized for the tariff subsidies applied to users of distribution services, reimbursed by Eletrobras.
Summary of Deductions from Revenue |
| Taxes and charges reported as deductions on revenue
|  | 2017 |  |  | 2016 |  |  | 2015 |
Taxes on revenue |  |  |  |  |  |  |  |  |  |  |  |
ICMS (1) (2) |  |  | 5,847 |  |  |  | 5,211 |  |  |  | 4,487 |
Cofins |  |  | 2,237 |  |  |  | 2,041 |  |  |  | 2,263 |
PIS and Pasep |  |  | 455 |  |  |  | 443 |  |  |  | 491 |
Others |  |  | 8 |  |  |  | 7 |  |  |  | 6 |
|  |  | 8,547 |  |  |  | 7,702 |  |  |  | 7,247 |
Charges to the customer |  |  |  |  |  |  |  |  |  |  |  |
Global Reversion Reserve (RGR) |  |  | 17 |  |  |  | (18 | ) |  |  | 36 |
Energy Efficiency Program |  |  | 56 |  |  |  | 58 |  |  |  | 45 |
Energy Development Account (CDE) |  |  | 1,822 |  |  |  | 2,074 |  |  |  | 2,870 |
Research and Development (R&D) |  |  | 38 |  |  |  | 48 |  |  |  | 47 |
National Scientific and Technological Development Fund (FNDCT) |  |  | 38 |  |  |  | 48 |  |  |  | 47 |
Energy System Expansion Research (EPE of MME) |  |  | 19 |  |  |  | 24 |  |  |  | 24 |
Customer charges – Proinfa alternative sources program |  |  | 39 |  |  |  | 43 |  |  |  | 27 |
Energy Services Inspection Charge |  |  | 29 |  |  |  | 35 |  |  |  | 37 |
Royalties for use of water resources |  |  | 92 |  |  |  | 123 |  |  |  | 102 |
Customer charges – the ‘Flag Tariff’ system |  |  | 454 |  |  |  | 360 |  |  |  | 1,067 |
|  |  | 2,604 |  |  |  | 2,795 |  |  |  | 4,302 |
|  |  | 11,151 |  |  |  | 10,497 |  |  |  | 11,549 |
(1) | Includes the effects of acceptance of the Tax Anmesty Program (PRCT), in the amount of R$ 532. More details in Note 20.
(2) | As from January 1, 2016, the rate for customers in the Commercial, services and other activities category was changed from 18% to 25% (Decree nº 46.924, of December 29, 2015).

X
- Definition Disclosure of deductions on revenue. + References No definition available. + Details
Name: | xcmig_DisclosureOfDeductionsOnRevenueExplanatory
Namespace Prefix: | xcmig_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of detailed information about revenue. + References No definition available. + Details
Name: | xcmig_DisclosureOfDetailedInformationAboutRevenueExplanatory
Namespace Prefix: | xcmig_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of other operating revenue. + References No definition available. + Details
Name: | xcmig_DisclosureOfOtherOperatingRevenueExplanatory
Namespace Prefix: | xcmig_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of supply of electricity by type of consumer. + References No definition available. + Details
Name: | xcmig_DisclosureOfSupplyOfElectricityByTypeOfConsumerExplanatory
Namespace Prefix: | xcmig_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Text block1 [abstract] + References No definition available. + Details
Name: | xcmig_TextBlock1Abstract
Namespace Prefix: | xcmig_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration