BASIS OF PREPARATION AND SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2019

BASIS OF PREPARATION AND SIGNIFICANT ACCOUNTING POLICIES [ABSTRACT]

Summary depreciation on power generating assets

Depreciation on power generating assets is calculated on a straight-line basis over the estimated service lives of the assets, which are as follows:

	Estimated service lives
Dams	Up to 115 years
Penstocks	Up to 60 years
Powerhouses	Up to 115 years
Hydroelectric generating units	Up to 115 years
Wind generating units	Up to 30 years
Solar generating units	Up to 30 years
Gas-fired cogenerating (“Cogeneration”) units	Up to 40 years
Other assets	Up to 60 years