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Revenue from sales and energy purchases (Details 1)
MWh in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2024
ARS ($)
MWh
Dec. 31, 2023
ARS ($)
MWh
Dec. 31, 2022
ARS ($)
MWh
IfrsStatementLineItems [Line Items]      
Total - Revenue $ 2,043,127 $ 1,526,735 $ 1,395,852
Small Demand Tariff [Member]      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh 13,086 13,589 13,052
Total - Revenue $ 1,252,715 $ 909,134 $ 765,306
Medium Demand Segment [Member]      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh 1,515 1,552 1,529
Total - Revenue $ 258,908 $ 171,244 $ 142,648
Large Demand Segment [Member]      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh 3,503 3,680 3,714
Total - Revenue $ 458,650 $ 380,954 $ 416,314
Other Demand Segment [Member]      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh 4,622 4,721 4,531
Total - Revenue $ 64,951 $ 58,104 $ 63,202
Subtotal Sales Of Electricity [Member]      
IfrsStatementLineItems [Line Items]      
Sale of energy | MWh 22,726 23,542 22,826
Total - Revenue $ 2,035,224 $ 1,519,436 $ 1,387,470
Right Of Use Of Poles [Member]      
IfrsStatementLineItems [Line Items]      
Total - Revenue 6,214 6,389 7,561
Connection And Reconnection Charges [Member]      
IfrsStatementLineItems [Line Items]      
Total - Revenue 1,689 910 821
Subtotal Other Eervices [Member]      
IfrsStatementLineItems [Line Items]      
Total - Revenue $ 7,903 $ 7,299 $ 8,382
Energy Purchase [Member]      
IfrsStatementLineItems [Line Items]      
Energy purchases | MWh 26,827 27,676 27,158
Energy purchases $ (1,166,395) $ (999,413) $ (971,291)