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REVENUE (Tables)
 12 Months Ended
Dec. 31, 2021
Schedule of net operating revenue

 

   2021  2020  2019
Revenue from supply of energy (a)   29,619    26,432    26,928 
Revenue from use of the electricity distribution systems (TUSD) (b)   3,448    3,022    2,722 
CVA, and Other financial components (c)   2,146    455    58 
Reimbursement of  PIS/Pasep and Cofins over ICMS credits to customers– realization (1)   1,317    266    —   
Transmission revenue               
   Transmission operation and maintenance revenue (d)   355    280    352 
   Transmission construction revenue (d) (note 14)   252    201    312 
   Interest revenue arising from the financing component in the transmission contract asset (d) (note 14)   660    438    328 
Distribution construction revenue   1,852    1,436    980 
Adjustment to expectation of cash flow from indemnifiable financial assets of distribution concession (e)   54    16    18 
Revenue on financial updating of the Concession Grant Fee (f)   523    347    318 
Energy transactions on the CCEE (g)   1,157    154    432 
Mechanism for the sale of surplus (h)   453    234    —   
Supply of gas   3,470    2,011    2,298 
Fine for violation of service continuity indicator   (70)   (51)   (58)
Advances for services provided (i)   154    —      1,428 
Other operating revenues (j)   1,935    1,709    1,721 
Deductions on revenue (k)   (13,679)   (11,722)   (12,351)
Net revenue   33,646    25,228    25,486 
(1)For more information, see note 9a from these financial statements.
This table shows energy supply by type of customer:

This table shows energy supply by type of customer:

 

   GWh (1)  R$
   2021  2020  2019  2021  2020  2019
Residential   11,186    10,981    10,538    11,124    9,875    9,668 
Industrial   16,361    12,731    14,873    5,275    4,171    4,760 
Commercial, services and others   8,334    8,571    9,335    5,520    4,979    5,439 
Rural   3,975    3,766    3,795    2,566    2,190    2,058 
Public authorities   729    714    905    583    522    654 
Public lighting   1,226    1,243    1,357    718    550    614 
Public services   1,418    1,362    1,373    879    722    725 
Subtotal   43,229    39,368    42,176    26,665    23,009    23,918 
Own consumption   33    34    38    —      —      —   
Unbilled revenue   —      —      —      (14)   9    134 
    43,262    39,402    42,214    26,651    23,018    24,052 
Wholesale supply to other concession holders (2)   10,825    13,907    11,920    3,023    3,363    2,943 
Wholesale supply unbilled, net   —      —      —      (55)   51    (67)
Total   54,087    53,309    54,134    29,619    26,432    26,928 
(1)Data not examined 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.
The total amount of energy transported, in MWh, is as follows:

These are recognized upon the distribution infrastructure becoming available to customers, and the fair value of the consideration is calculated according to the TUSD tariff of those customers, set by the grantor. The total amount of energy transported, in MWh, is as follows:

 

   GWh (1)
   2021  2020  2019
Industrial   20,447    18,612    17,723 
Commercial   1,535    1,300    1,320 
Rural   44    32    17 
Public authorities   4    —      —   
Concessionaires   310    315    341 
Total   22,340    20,259    19,401 
(1)Data not audited by external auditors
The margin defined for each performance obligation from the transmission concession contract is as follows:

The margin defined for each performance obligation from the transmission concession contract is as follows:

 

   2021  2020  2019 (1)
Construction and upgrades revenue   252    201    312 
Construction and upgrades costs   (183)   (147)   (220)
Margin   69    54    92 
Mark-up (%)   37.40%   36.73%   41.82%
Operation and maintenance revenue   355    279    352 
Operation and maintenance cost   (235)   (223)   (388)
Margin   120    56    (36)
Mark-up (%)   50.88%   25,11%   (9.28%)

 

(1)The negative margin observed in 2019 related to the performance obligation to operate and maintain is due the recognition of the non-recurring tax provision, in the amount of R$135.
Other operating revenues

 

j)Other operating revenues
   2021  2020  2019
Charged service   17    11    17 
Services rendered   53    139    183 
Subsidies (1)   1,592    1,395    1,266 
Rental and leasing   211    164    189 
Reimbursement for decontracted supply (2)   27    —      65 
Other   35    —      1 
 Total   1,935    1,709    1,721 

 

(1)Includes the revenue recognized for the tariff subsidies applied to users of the distribution system, in the amount of R$986 in 2021 (R$1,035 in 2020). Includes the subsidies for sources that are subject to incentive, rural, irrigators, public services and the generation sources that are subject to the incentive; and also includes the tariff flag revenue in the amount of R$108 in 2021, recognized because of the creditor position assumed by the Company in CCRBT; and revenue recognized arising from subsidies, in the amount of R$205, relating to the Program to Encourage Voluntary Reduction of Energy Consumption.
(2)Reimbursement for suspension of energy supply –Renova.
Deductions on revenue

 

k)Deductions on revenue

 

   2021  2020  2019
Taxes on revenue               
ICMS   6,993    6,098    6,358 
Cofins   2,842    2,214    2,408 
PIS/Pasep   618    481    524 
Others   11    5    7 
    10,464    8,798    9,297 
Charges to the customer               
Global Reversion Reserve (RGR)   15    16    16 
Energy Efficiency Program (PEE)   74    73    69 
Energy Development Account (CDE)   2,658    2,443    2,448 
Research and Development (R&D)   34    43    41 
National Scientific and Technological Development Fund (FNDCT)   55    43    41 
Energy System Expansion Research (EPE of MME)   27    21    20 
Customer charges – Proinfa alternative sources program   66    39    52 
Energy services inspection fee   35    35    30 
Royalties for use of water resources   37    62    43 
Customer charges – the ‘Flag Tariff’ system   162    149    294 
CDE on R&D   21    —      —   
CDE on PEE   31    —      —   
    3,215    2,924    3,054 
    13,679    11,722    12,351