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Jointly-Owned Facilities (Details) - Arizona Public Service Company $ in Thousands | Dec. 31, 2022 USD ($)
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Palo Verde Units 1 and 3 |
Interests in jointly-owned facilities |
Percent Owned | 29.10%
Plant in Service | $ 1,947,593
Accumulated Depreciation | 1,099,132
Construction Work in Progress | $ 39,933
Palo Verde Unit 2 |
Interests in jointly-owned facilities |
Percent Owned | 16.80%
Plant in Service | $ 659,514
Accumulated Depreciation | 383,775
Construction Work in Progress | $ 14,784
Palo Verde Common |
Interests in jointly-owned facilities |
Percent Owned | 28.00%
Plant in Service | $ 799,794
Accumulated Depreciation | 346,705
Construction Work in Progress | 52,631
Palo Verde Sale Leaseback |
Interests in jointly-owned facilities |
Plant in Service | 351,050
Accumulated Depreciation | 260,754
Construction Work in Progress | $ 0
Four Corners Generating Station |
Interests in jointly-owned facilities |
Percent Owned | 63.00%
Plant in Service | $ 1,665,042
Accumulated Depreciation | 620,918
Construction Work in Progress | $ 46,643
Cholla Common Facilities |
Interests in jointly-owned facilities |
Percent Owned | 50.50%
Plant in Service | $ 207,104
Accumulated Depreciation | 140,886
Construction Work in Progress | $ 2,988
ANPP 500kV System |
Interests in jointly-owned facilities |
Percent Owned | 33.40%
Plant in Service | $ 133,887
Accumulated Depreciation | 55,704
Construction Work in Progress | $ 2,820
Navajo Southern System |
Interests in jointly-owned facilities |
Percent Owned | 26.80%
Plant in Service | $ 90,345
Accumulated Depreciation | 36,929
Construction Work in Progress | $ 1,945
Palo Verde — Yuma 500kV System |
Interests in jointly-owned facilities |
Percent Owned | 25.40%
Plant in Service | $ 24,026
Accumulated Depreciation | 7,559
Construction Work in Progress | $ 128
Four Corners Switchyards |
Interests in jointly-owned facilities |
Percent Owned | 61.90%
Plant in Service | $ 73,243
Accumulated Depreciation | 20,350
Construction Work in Progress | $ 120
Phoenix — Mead System |
Interests in jointly-owned facilities |
Percent Owned | 17.10%
Plant in Service | $ 39,705
Accumulated Depreciation | 20,055
Construction Work in Progress | $ 51
Palo Verde — Rudd 500kV System |
Interests in jointly-owned facilities |
Percent Owned | 50.00%
Plant in Service | $ 95,736
Accumulated Depreciation | 31,118
Construction Work in Progress | $ 391
Morgan — Pinnacle Peak System |
Interests in jointly-owned facilities |
Percent Owned | 64.70%
Plant in Service | $ 119,785
Accumulated Depreciation | 25,791
Construction Work in Progress | $ 96
Round Valley System |
Interests in jointly-owned facilities |
Percent Owned | 50.00%
Plant in Service | $ 548
Accumulated Depreciation | 193
Construction Work in Progress | $ 0
Palo Verde — Morgan System |
Interests in jointly-owned facilities |
Percent Owned | 87.80%
Plant in Service | $ 263,576
Accumulated Depreciation | 34,415
Construction Work in Progress | $ 1,414
Hassayampa — North Gila System |
Interests in jointly-owned facilities |
Percent Owned | 80.00%
Plant in Service | $ 148,174
Accumulated Depreciation | 22,566
Construction Work in Progress | $ 3,771
Cholla 500kV Switchyard |
Interests in jointly-owned facilities |
Percent Owned | 85.70%
Plant in Service | $ 8,100
Accumulated Depreciation | 2,380
Construction Work in Progress | $ 0
Saguaro 500kV Switchyard |
Interests in jointly-owned facilities |
Percent Owned | 60.00%
Plant in Service | $ 21,656
Accumulated Depreciation | 13,809
Construction Work in Progress | $ 0
Kyrene — Knox System |
Interests in jointly-owned facilities |
Percent Owned | 50.00%
Plant in Service | $ 578
Accumulated Depreciation | 336
Construction Work in Progress | $ 0
Agua Fria Switchyard |
Interests in jointly-owned facilities |
Percent Owned | 10.00%
Plant in Service | $ 0
Accumulated Depreciation | 0
Construction Work in Progress | $ 32

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- Definition The period end amount owned by the reporting utility of a jointly owned utility plant in service. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 10.C) -URI https://asc.fasb.org/extlink&oid=122136288&loc=d3e659983-123033 + Details
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- Definition The period end amount of construction work in progress at a jointly owned electricity generation plant. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 10.C) -URI https://asc.fasb.org/extlink&oid=122136288&loc=d3e659983-123033 + Details
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