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Net Operating Revenue (Tables)
 12 Months Ended
Dec. 31, 2022
Net Operating Revenue  
Schedule of net operating revenue
                 
    PIS/Pasep     Service Net revenue
  Gross and  ICMS Sectorial  tax      
  revenues Cofins  (VAT) charges  (ISSQN) 12.31.2022 12.31.2021 12.31.2020
Electricity sales to final customers 11,392,957 (865,989) (2,042,838) (974,093) -  7,510,037  7,237,677 6,652,824
Electricity sales to distributors  4,644,150 (650,271) (18,876) (62,086) -  3,912,917  6,051,854 3,779,830
Use of the main distribution and transmission grid  9,843,657 (784,691) (1,595,850) (2,634,275) -  4,828,841  5,295,074 4,372,596
Construction income  2,176,158 - - - -  2,176,158  1,951,559 1,414,067
Fair value of assets from the indemnity for the concession 89,941 - - - -  89,941  142,642 57,341
Distribution of piped gas  1,669,588 (121,925) (288,104) - (63)  1,259,496  712,267 502,655
Result of sectorial financial assets and liabilities  1,847,863 (170,927) - - -  1,676,936  2,270,859 676,939
Other operating revenue  534,325 (54,579) - - (6,351) 473,395 322,355  366,434
Recovery of Pis/Pasep and Cofins on ICMS   - - - - - -  -  810,563
  32,198,639 (2,648,382) (3,945,668) (3,670,454) (6,414) 21,927,721 23,984,287  18,633,249
Schedule of revenue by type and/or class of customers
       
       
  12.31.2022 12.31.2021 12.31.2020
Electricity sales to final customers 11,392,957 12,296,456 9,524,897
Residential 3,441,726 4,098,156 3,098,969
Industrial 954,280 1,230,945 970,638
Trade, services and other activities 1,930,820 2,202,475 1,701,260
Rural 768,128 873,560 613,419
Public entities 262,000 276,383 195,259
Public lighting 253,758 339,524 233,558
Public service 351,613 400,341 290,482
Free consumers 2,692,303 2,203,320 1,729,603
Donations and grants 738,329 671,752 691,709
Electricity sales to distributors 4,644,150 7,034,152 4,330,982
Bilateral contracts 2,923,509 2,390,859 2,386,929
Regulated contracts 1,033,405 1,026,124 916,377
Electric Energy Trade Chamber - CCEE 568,797 3,482,687 933,369
Effective interest - grant bônus (Note 9.3) 118,439 134,482 94,307
Use of the main distribution and transmission grid 9,843,657 10,088,231 8,780,612
Residential 2,899,387 3,011,507 2,788,725
Industrial 1,174,082 1,456,377 1,273,320
Trade, services and other activities 1,735,174 1,771,496 1,628,098
Rural 662,963 623,280 548,682
Public entities 231,753 205,247 180,814
Public lighting 195,319 213,433 205,904
Public service 218,738 214,501 195,597
Free consumers 1,819,152 1,440,922 1,164,020
Concessionaires and generators 86,160 79,493 61,720
Operating and maintenance income - O&M and interest income  820,929 1,071,975 733,732
Construction income 2,176,158 1,951,559 1,414,067
Power distribution service concession 2,048,022 1,700,889 1,154,488
Power gas distribution service concession 12,024 11,222 7,438
Power transmission concession(a) 116,112 239,448 252,141
Fair value of assets from the indemnity for the concession 89,941 142,642 57,341
Distribution of piped gas 1,669,588 950,850 679,304
Result of sectorial financial assets and liabilities 1,847,863 2,502,324 746,052
Other operating revenue  534,325 358,997 406,539
Leasing and rent (30.2) 374,801 253,049 176,452
Fair value in the purchase and sale of power  32,747  - 137,463
Income from rendering of services 59,048 91,932 44,182
Other income 67,729 14,016 48,442
GROSS OPERATING REVENUE 32,198,639 35,325,211 25,939,794
(-) Pis/Pasep and Cofins  (2,648,382)  (2,839,713)  (2,038,541)
Recovery of Pis/Pasep and Cofins on ICMS (Note 12.2.1)  -  - 810,563
(-) ICMS (VAT)  (3,945,668)  (4,984,945)  (4,216,720)
(-) Service tax (ISSQN)  (6,414)  (7,509)  (4,504)
(-) Sectorial charges (30.3)  (3,670,454)  (3,508,757)  (1,857,343)
 NET OPERATING REVENUE  21,927,721 23,984,287 18,633,249
(a) The balance contains the amount of construction revenue, the construction margin and the efficiency gain or loss as detailed in Note 10.3.
Schedule of revenues from leases and rentals
       
       
  12.31.2022 12.31.2021 12.31.2020
Equipment and structures 373,036 251,953 175,673
Facilities sharing  1,529 738 415
Real estate 236 358 364
  374,801 253,049 176,452
Schedule of regulatory charges
       
  12.31.2022 12.31.2021 12.31.2020
Energy Development Account - "CDE " - Power distribution service concession (30.3.1) 2,670,262  1,737,716  1,530,998
Other charges - rate flags (30.3.2)  724,414  1,480,361  81,159
Research and development and energy efficiency - R&D and EEP  154,138  191,006  144,474
Global Reversion Reserve - RGR quota  42,103  44,372  62,057
Energy Development Account - "CDE "- Power transmission concession  65,460  42,973  27,315
Inspection fee  14,077  12,329  11,340
   3,670,454 3,508,757 1,857,343
Schedule of energy development account - CDE
       
Resolutions Period 12.31.2022 12.31.2021 12.31.2020
"CDE USO" Quotas (a)  2,321,875  1,534,490  1,531,713
Covid Account(b)  183,444  107,009 -
(-) Preliminary injunctions - -  (715)
     2,505,319  1,641,499  1,530,998
         
"CDE ENERGIA" Covid Account (b)  164,943  96,217 -
         
     2,670,262  1,737,716  1,530,998
(a) "CDE Uso": Resolution No. 3,034/2022 (may-dec/22), Resolution No. 3,004/2021 (jan-apr/22); Resolution No. 2,814/2020 and Aneel Technical Note No. 12/2021 (jan-feb/21); Resolution No. 2,834/2021 (mar-dec/21); Resolution No. 2.664/2019 (jan-dec/20).
(b) "CDE Uso" e "CDE Energia" - Covid Account: Order No. 939/2021.