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Revenue from sales and energy purchases (Tables)
 12 Months Ended
Dec. 31, 2021
Schedule of sales of electricity

 

                         
    12.31.21   12.31.20   12.31.19
    GWh   $   GWh   $   GWh   $
Sales of electricity                        
Small demand segment: Residential use and public lighting (T1)       12,373        66,852       11,600        86,541     10,768      109,511
Medium demand segment: Commercial and industrial (T2)         1,447        12,150         1,341        15,909      1,549        24,104
Large demand segment (T3)         3,492        28,531         3,210        29,921      3,503        48,203
Other: (Shantytowns/Wheeling system)
         4,398          5,192         4,028          4,695      4,154          2,159
Subtotal - Sales of electricity       21,710      112,725       20,179      137,066     19,974      183,977
                         
Other services                        
Right of use of poles                 702                 635                582
Connection and reconnection charges                73                  81                180
Subtotal - Other services                 775                 716                762
                         
                         
Total - Revenue          113,500          137,782          184,739

 

 

 

                         
    12.31.21   12.31.20   12.31.19
    GWh   $   GWh   $   GWh   $
                         
Energy purchases (1)      26,373        (69,800)      25,124        (87,408)    24,960      (117,160)

 

 

(1)As of December 31, 2021, 2020 and 2019, includes technical and non-technical energy losses for 4,663 GWh, 4,945 GWh and 4,986 GWh, respectively.