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Significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2024

Accounting Policies [Abstract]

Schedule of Estimated Useful Lives of Depreciable Assets

The ranges of estimated useful lives and the weighted average useful lives are summarized below:

			Range of useful lives												Weighted average useful lives
			2024						2023						2024						2023
Utility plant			1-100						1-100						41						40
Hydro: generation facilities and other			5-60						5-60						35						35

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Schedule Of Property Plant And Equipment Estimated Useful Lives.

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