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Property, Plant and Equipment (Details 6)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Generation | General equipment      
IfrsStatementLineItems [Line Items]      
Average rate of depreciation 6.25% 6.25% 6.26%
Generation | Machinery [member]      
IfrsStatementLineItems [Line Items]      
Average rate of depreciation 3.68% 3.68% 3.39%
Generation | Generators [Member]      
IfrsStatementLineItems [Line Items]      
Average rate of depreciation 3.42% 3.42% 3.73%
Generation | Reservoirs, dams and aqueducts      
IfrsStatementLineItems [Line Items]      
Average rate of depreciation 2.67% 2.56% 2.68%
Generation | Hydraulic Turbines [Member]      
IfrsStatementLineItems [Line Items]      
Average rate of depreciation 2.89% 2.90% 2.93%
Generation | Gas And Steam Turbines [Member]      
IfrsStatementLineItems [Line Items]      
Average rate of depreciation 4.00% 4.00% 4.00%
Generation | Gas Conditioner [Member]      
IfrsStatementLineItems [Line Items]      
Average rate of depreciation 3.00% 3.00% 3.00%
Generation | Wind Power Plant Unit [Member]      
IfrsStatementLineItems [Line Items]      
Average rate of depreciation 4.94% 4.98% 4.94%
Generation | Buildings [member]      
IfrsStatementLineItems [Line Items]      
Average rate of depreciation 3.07% 3.15% 3.15%
Central management | Buildings [member]      
IfrsStatementLineItems [Line Items]      
Average rate of depreciation 3.33% 3.33% 3.35%
Central management | Office equipment [member]      
IfrsStatementLineItems [Line Items]      
Average rate of depreciation 6.25% 6.27% 6.25%
Central management | Fixtures and fittings [member]      
IfrsStatementLineItems [Line Items]      
Average rate of depreciation 6.25% 6.30% 6.25%
Central management | Vehicle [Member]      
IfrsStatementLineItems [Line Items]      
Average rate of depreciation 14.29% 14.29% 14.29%