Energy Purchase Contracts (Tables)

12 Months Ended

Dec. 31, 2021

Energy Purchase Contracts [Line Items]

Schedule of Utility Total Expenses

Total expenses for power purchased, natural gas purchased, fuel for generation and other fuel costs, which are included in utility resource costs in the Consolidated Statements of Income, were as follows for the years ended December 31 (dollars in thousands):

	2021		2020		2019
Utility power resources	$	431,199	$	324,297	$	376,769

Future Contractual Commitments for Power Resources and Natural Gas Resources

The following table details Avista Utilities’ future contractual commitments for power resources (including transmission contracts) and natural gas resources (including transportation contracts) (dollars in thousands):

	2022		2023		2024		2025		2026		Thereafter		Total
Power resources	$	198,052	$	187,552	$	200,693	$	193,877	$	184,230	$	1,888,038	$	2,852,442
Natural gas resources		87,228		66,508		42,581		36,423		32,094		382,981		647,815
Total	$	285,280	$	254,060	$	243,274	$	230,300	$	216,324	$	2,271,019	$	3,500,257

Contractual Obligations [Member]

Energy Purchase Contracts [Line Items]

Future Contractual Commitments for Power Resources and Natural Gas Resources

The following table details future contractual commitments under these agreements (dollars in thousands):

	2022		2023		2024		2025		2026		Thereafter		Total
Contractual obligations	$	28,912	$	29,680	$	30,471	$	31,287	$	32,127	$	212,852	$	365,329