XML 157 R136.htm IDEA: XBRL DOCUMENT v3.21.1
17. PROPERTY, PLANT AND EQUIPMENT (Details 2)
 12 Months Ended
Dec. 31, 2020
Reservoirs, dams and watercourses [member] | Generation unit [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Property plant and equipment depreciation rate 2.00%
Buildings - machine room [member] | Generation unit [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Property plant and equipment depreciation rate 2.00%
Buildings - other [member] | Generation unit [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Property plant and equipment depreciation rate 3.33%
Buildings - other [member] | Administration unit [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Property plant and equipment depreciation rate 3.33%
Generator [member] | Generation unit [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Property plant and equipment depreciation rate 3.33%
Water turbine [member] | Generation unit [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Property plant and equipment depreciation rate 2.50%
Pressure tunnel [member] | Generation unit [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Property plant and equipment depreciation rate 3.13%
Command station, panel and cubicle [member] | Generation unit [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Property plant and equipment depreciation rate 3.57%
Floodgate [member] | Generation unit [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Property plant and equipment depreciation rate 3.33%
Software [member] | Administration unit [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Property plant and equipment depreciation rate 20.00%
Vehicles [member] | Administration unit [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Property plant and equipment depreciation rate 14.29%
IT equipment in general [member] | Administration unit [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Property plant and equipment depreciation rate 16.67%
General Equipment [member] | Administration unit [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Property plant and equipment depreciation rate 6.25%