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Revenue from sales and energy purchases (Details 1)
$ in Millions
 12 Months Ended
Dec. 31, 2023
ARS ($)
MWh
Dec. 31, 2022
ARS ($)
MWh
Dec. 31, 2021
ARS ($)
MWh
IfrsStatementLineItems [Line Items]      
Total - Revenue $ 701,098 $ 640,994 $ 688,502
Small demand tariff [member]      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh | MWh 13,585 13,052 12,373
Total - Revenue $ 417,487 $ 351,439 $ 405,529
Medium demand segment [member]      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh | MWh 1,552 1,529 1,447
Total - Revenue $ 78,638 $ 65,506 $ 73,705
Large demand segment [member]      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh | MWh 3,680 3,714 3,492
Total - Revenue $ 174,939 $ 191,177 $ 173,070
Other demand segment [member]      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh | MWh 4,721 4,531 4,398
Total - Revenue $ 26,682 $ 29,023 $ 31,496
Subtotal sales of electricity member      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh | MWh 23,538 22,826 21,710
Total - Revenue $ 697,746 $ 637,145 $ 683,800
Right of use of poles [member]      
IfrsStatementLineItems [Line Items]      
Total - Revenue 2,934 3,472 4,257
Connection and reconnection charges [member]      
IfrsStatementLineItems [Line Items]      
Total - Revenue 418 377 445
Subtotal other services [member]      
IfrsStatementLineItems [Line Items]      
Total - Revenue $ 3,352 $ 3,849 $ 4,702
Energy purchase [member]      
IfrsStatementLineItems [Line Items]      
Energy purchases | MWh | MWh 27,676 27,158 26,373
Energy purchases $ (458,944) $ (446,030) $ (423,413)