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Revenue from sales and energy purchases (Details 1)
$ in Millions
 12 Months Ended
Dec. 31, 2022
ARS ($)
MWh
Dec. 31, 2021
ARS ($)
MWh
Dec. 31, 2020
ARS ($)
MWh
IfrsStatementLineItems [Line Items]      
Total - Revenue $ 205,835 $ 221,091 $ 268,389
Total - Revenue $ (205,835) $ (221,091) $ (268,389)
Small demand tariff member      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh | MWh 13,052 12,373 11,600
Total - Revenue $ 112,853 $ 130,223 $ 168,574
Total - Revenue $ (112,853) $ (130,223) $ (168,574)
Medium demand segment member      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh | MWh 1,529 1,447 1,341
Total - Revenue $ 21,035 $ 23,668 $ 30,990
Total - Revenue $ (21,035) $ (23,668) $ (30,990)
Large demand segment member      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh | MWh 3,714 3,492 3,210
Total - Revenue $ 61,391 $ 55,576 $ 58,284
Total - Revenue $ (61,391) $ (55,576) $ (58,284)
Other demand segment member      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh | MWh 4,531 4,398 4,028
Total - Revenue $ 9,320 $ 10,114 $ 9,146
Total - Revenue $ (9,320) $ (10,114) $ (9,146)
Subtotal sales of electricity member      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh | MWh 22,826 21,710 20,179
Total - Revenue $ 204,599 $ 219,581 $ 266,994
Total - Revenue (204,599) (219,581) (266,994)
Right of use of poles member      
IfrsStatementLineItems [Line Items]      
Total - Revenue 1,115 1,367 1,237
Total - Revenue (1,115) (1,367) (1,237)
Connection and reconnection charges member      
IfrsStatementLineItems [Line Items]      
Total - Revenue 121 143 158
Total - Revenue (121) (143) (158)
Subtotal other eervices member      
IfrsStatementLineItems [Line Items]      
Total - Revenue 1,236 1,510 1,395
Total - Revenue $ (1,236) $ (1,510) $ (1,395)
Energy purchase member      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh | MWh [1] 27,158 26,373 25,124
Total - Revenue [1] $ 143,228 $ 135,966 $ 170,264
Total - Revenue [1] $ (143,228) $ (135,966) $ (170,264)
[1] As of December 31, 2022, 2021 and 2020, includes technical and non-technical energy losses for 4,333 GWh, 4,663 GWh and 4,945 GWh, respectively.