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Property plant and equipment (Details) - ARS ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Statement [Line Items]    
Property, Plant And Equipment Cost, Beginning $ 392,737,920,000 $ 382,754,646,000
Additions 12,899,205,000 10,124,723,000
Transfers (4,728,000) 781,017,000
Disposals (1,020,713,000) (922,466,000)
Property, Plant And Equipment Cost, Ending 404,611,684,000 392,737,920,000
Property, Plant And Equipment Depreciation, Beginning 177,251,225,000 149,926,728,000
Depreciation For The Year 15,490,504,000 14,877,607,000
Disposals And Impairment 13,955,202,000 12,446,890,000
Property, Plant And Equipment Depreciation, Ending 206,696,931,000 177,251,225,000
Property, Plant And Equipment Net Book Value 197,914,753,000 215,486,695,000
Wind Turbines    
Statement [Line Items]    
Property, Plant And Equipment Cost, Beginning 68,236,923,000 68,215,112,000
Additions 0 0
Transfers 0 21,811,000
Disposals 0 0
Property, Plant And Equipment Cost, Ending 68,236,923,000 68,236,923,000
Property, Plant And Equipment Depreciation, Beginning 7,895,011,000 4,461,923,000
Depreciation For The Year 3,437,282,000 3,433,088,000
Disposals And Impairment 6,316,392,000 0
Property, Plant And Equipment Depreciation, Ending 17,648,685,000 7,895,011,000
Property, Plant And Equipment Net Book Value 50,588,238,000 60,341,912,000
Electric Power Facilities    
Statement [Line Items]    
Property, Plant And Equipment Cost, Beginning 253,844,749,000 205,604,344,000
Additions 3,623,000 0
Transfers 1,021,869,000 48,935,898,000
Disposals (967,340,000) (695,493,000)
Property, Plant And Equipment Cost, Ending 253,902,901,000 253,844,749,000
Property, Plant And Equipment Depreciation, Beginning 138,532,442,000 121,019,605,000
Depreciation For The Year 10,799,992,000 10,141,748,000
Disposals And Impairment 6,312,391,000 7,371,089,000
Property, Plant And Equipment Depreciation, Ending 155,644,825,000 138,532,442,000
Property, Plant And Equipment Net Book Value 98,258,076,000 115,312,307,000
Gas Turbines    
Statement [Line Items]    
Property, Plant And Equipment Cost, Beginning 7,509,211,000 7,506,390,000
Additions 0 2,821,000
Transfers 0 0
Disposals 0 0
Property, Plant And Equipment Cost, Ending 7,509,211,000 7,509,211,000
Property, Plant And Equipment Depreciation, Beginning 4,374,474,000 4,374,474,000
Depreciation For The Year 0 0
Disposals And Impairment 0 0
Property, Plant And Equipment Depreciation, Ending   4,374,474,000
Property, Plant And Equipment Net Book Value 3,134,737,000 3,134,737,000
Property, Plant And Equipment Depreciation, Ending 4,374,474,000 4,374,474,000
Lands and Buildings    
Statement [Line Items]    
Property, Plant And Equipment Cost, Beginning 29,006,092,000 28,837,418,000
Additions 11,642,183,000 9,775,000
Transfers 41,367,000 158,899,000
Disposals 0 0
Property, Plant And Equipment Cost, Ending 40,689,642,000 29,006,092,000
Property, Plant And Equipment Depreciation, Beginning 6,422,313,000 4,277,863,000
Depreciation For The Year 943,647,000 841,884,000
Disposals And Impairment 1,186,379,000 1,302,566,000
Property, Plant And Equipment Depreciation, Ending 8,552,339,000 6,422,313,000
Property, Plant And Equipment Net Book Value 32,137,303,000 22,583,779,000
Construction in Progress    
Statement [Line Items]    
Property, Plant And Equipment Cost, Beginning 22,403,939,000 60,877,646,000
Additions 1,013,291,000 9,878,338,000
Transfers 1,075,321,000 (48,352,045,000)
Disposals 0 0
Property, Plant And Equipment Cost, Ending 22,341,909,000 22,403,939,000
Property, Plant And Equipment Depreciation, Beginning 10,883,163,000 6,981,113,000
Depreciation For The Year 0 0
Disposals And Impairment 0 3,902,050,000
Property, Plant And Equipment Depreciation, Ending 10,883,163,000 10,883,163,000
Property, Plant And Equipment Net Book Value 11,458,746,000 11,520,776,000
Sales Under Contracts    
Statement [Line Items]    
Property, Plant And Equipment Cost, Beginning 11,737,006,000 11,713,736,000
Additions 240,108,000 233,789,000
Transfers 7,357,000 16,454,000
Disposals (53,373,000) (226,973,000)
Property, Plant And Equipment Cost, Ending 11,931,098,000 11,737,006,000
Property, Plant And Equipment Depreciation, Beginning 9,143,822,000 8,811,750,000
Depreciation For The Year 309,583,000 460,887,000
Disposals And Impairment (140,040,000) (128,815,000)
Property, Plant And Equipment Depreciation, Ending 9,593,445,000 9,143,822,000
Property, Plant And Equipment Net Book Value $ 2,337,653,000 $ 2,593,184,000