Property, Plant And Equipment

12 Months Ended

Dec. 31, 2022

Property, Plant and Equipment [Abstract]

NOTE 10. PROPERTY, PLANT AND EQUIPMENT

Net Utility Property

Net utility property consisted of the following as of December 31 (dollars in thousands):


	2022		2021
Utility plant in service	$	7,561,688	$	7,166,580
Construction work in progress		164,147		205,405
Total		7,725,835		7,371,985
Less: Accumulated depreciation and amortization		2,281,126		2,146,470
Total net utility property	$	5,444,709	$	5,225,515

Gross Property, Plant and Equipment

The gross balances of the major classifications of property, plant and equipment are detailed in the following table as of December 31 (dollars in thousands):


	2022		2021
Avista Utilities:
Electric production	$	1,593,795	$	1,494,371
Electric transmission		994,709		945,624
Electric distribution		2,236,376		2,093,937
Electric construction work-in-progress (CWIP) and other		376,981		424,733
Electric total		5,201,861		4,958,665
Natural gas underground storage		58,072		55,684
Natural gas distribution		1,452,637		1,356,477
Natural gas CWIP and other		88,264		87,852
Natural gas total		1,598,973		1,500,013
Common plant (including CWIP)		744,173		740,339
Total Avista Utilities		7,545,007		7,199,017
AEL&P:
Electric production		106,390		106,094
Electric transmission		22,856		22,691
Electric distribution		29,269		27,138
Electric CWIP and other		12,295		7,319
Electric total		170,810		163,242
Common plant		10,018		9,726
Total AEL&P		180,828		172,968
Total gross utility property		7,725,835		7,371,985
Other (1)		16,631		17,818
Total	$	7,742,466	$	7,389,803

(1)

Included in other property and investments-net and other non-current assets on the Consolidated Balance Sheets. Accumulated depreciation was $2.4 million as of December 31, 2022 and $2.3 million as of December 31, 2021 for the other businesses.