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Property, Plant And Equipment | 12 Months Ended
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Dec. 31, 2023
Property, Plant and Equipment [Abstract] |
Property, Plant and Equipment | NOTE 10. PROPERTY, PLANT AND EQUIPMENT Net Utility Property Net utility property consisted of the following as of December 31 (dollars in thousands):
|  | 2023 |  |  | 2022 |
Utility plant in service |  | $ | 7,799,481 |  |  | $ | 7,561,688 |
Construction work in progress |  |  | 179,527 |  |  |  | 164,147 |
Total |  |  | 7,979,008 |  |  |  | 7,725,835 |
Less: Accumulated depreciation and amortization |  |  | 2,278,952 |  |  |  | 2,281,126 |
Total net utility property |  | $ | 5,700,056 |  |  | $ | 5,444,709 |
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):
|  | 2023 |  |  | 2022 |
Avista Utilities: |  |  |  |  |  |
Electric production |  | $ | 1,498,398 |  |  | $ | 1,593,795 |
Electric transmission |  |  | 1,059,389 |  |  |  | 994,709 |
Electric distribution |  |  | 2,383,201 |  |  |  | 2,236,376 |
Electric construction work-in-progress (CWIP) and other |  |  | 394,711 |  |  |  | 376,981 |
Electric total |  |  | 5,335,699 |  |  |  | 5,201,861 |
Natural gas underground storage |  |  | 59,994 |  |  |  | 58,072 |
Natural gas distribution |  |  | 1,539,467 |  |  |  | 1,452,637 |
Natural gas CWIP and other |  |  | 91,492 |  |  |  | 88,264 |
Natural gas total |  |  | 1,690,953 |  |  |  | 1,598,973 |
Common plant (including CWIP) |  |  | 759,498 |  |  |  | 744,173 |
Total Avista Utilities |  |  | 7,786,150 |  |  |  | 7,545,007 |
AEL&P: |  |  |  |  |  |
Electric production |  |  | 118,817 |  |  |  | 106,390 |
Electric transmission |  |  | 22,827 |  |  |  | 22,856 |
Electric distribution |  |  | 32,322 |  |  |  | 29,269 |
Electric CWIP and other |  |  | 8,552 |  |  |  | 12,295 |
Electric total |  |  | 182,518 |  |  |  | 170,810 |
Common plant |  |  | 10,340 |  |  |  | 10,018 |
Total AEL&P |  |  | 192,858 |  |  |  | 180,828 |
Total gross utility property |  |  | 7,979,008 |  |  |  | 7,725,835 |
Other (1) |  |  | 6,425 |  |  |  | 16,631 |
Total |  | $ | 7,985,433 |  |  | $ | 7,742,466 |
(1) Included in other property and investments-net and other non-current assets on the Consolidated Balance Sheets. Accumulated depreciation was less than $0.1 million as of December 31, 2023 and $2.4 million as of December 31, 2022 for the other businesses.

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