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Jointly-Owned Facilities (Details) - ARIZONA PUBLIC SERVICE COMPANY $ in Thousands | Dec. 31, 2019 USD ($)
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Palo Verde Units 1 and 3 |
Interests in jointly-owned facilities |
Percent Owned | 29.10%
Plant in Service | $ 1,877,748
Accumulated Depreciation | 1,102,609
Construction work in progress | $ 22,071
Palo Verde Unit 2 |
Interests in jointly-owned facilities |
Percent Owned | 16.80%
Plant in Service | $ 634,545
Accumulated Depreciation | 377,722
Construction work in progress | $ 11,831
Palo Verde Common |
Interests in jointly-owned facilities |
Percent Owned | 28.00%
Plant in Service | $ 746,653
Accumulated Depreciation | 290,084
Construction work in progress | 46,570
Palo Verde Sale Leaseback |
Interests in jointly-owned facilities |
Plant in Service | 351,050
Accumulated Depreciation | 249,144
Construction work in progress | $ 0
Four Corners Generating Station |
Interests in jointly-owned facilities |
Percent Owned | 63.00%
Plant in Service | $ 1,520,171
Accumulated Depreciation | 559,272
Construction work in progress | $ 44,842
Cholla Common Facilities |
Interests in jointly-owned facilities |
Percent Owned | 50.50%
Plant in Service | $ 184,608
Accumulated Depreciation | 95,720
Construction work in progress | $ 1,323
ANPP 500kV System |
Interests in jointly-owned facilities |
Percent Owned | 33.50%
Plant in Service | $ 133,396
Accumulated Depreciation | 51,248
Construction work in progress | $ 2,723
Navajo Southern System |
Interests in jointly-owned facilities |
Percent Owned | 26.70%
Plant in Service | $ 89,672
Accumulated Depreciation | 31,985
Construction work in progress | $ 194
Palo Verde — Yuma 500kV System |
Interests in jointly-owned facilities |
Percent Owned | 19.00%
Plant in Service | $ 15,274
Accumulated Depreciation | 6,486
Construction work in progress | $ 4,886
Four Corners Switchyards |
Interests in jointly-owned facilities |
Percent Owned | 63.00%
Plant in Service | $ 69,994
Accumulated Depreciation | 16,674
Construction work in progress | $ 2,395
Phoenix — Mead System |
Interests in jointly-owned facilities |
Percent Owned | 17.10%
Plant in Service | $ 39,355
Accumulated Depreciation | 18,570
Construction work in progress | $ 53
Palo Verde — Rudd 500kV System |
Interests in jointly-owned facilities |
Percent Owned | 50.00%
Plant in Service | $ 93,112
Accumulated Depreciation | 26,719
Construction work in progress | $ 317
Morgan — Pinnacle Peak System |
Interests in jointly-owned facilities |
Percent Owned | 64.60%
Plant in Service | $ 117,752
Accumulated Depreciation | 18,822
Construction work in progress | $ 0
Round Valley System |
Interests in jointly-owned facilities |
Percent Owned | 50.00%
Plant in Service | $ 515
Accumulated Depreciation | 164
Construction work in progress | $ 0
Palo Verde — Morgan System |
Interests in jointly-owned facilities |
Percent Owned | 88.90%
Plant in Service | $ 238,689
Accumulated Depreciation | 13,146
Construction work in progress | $ 0
Hassayampa — North Gila System |
Interests in jointly-owned facilities |
Percent Owned | 80.00%
Plant in Service | $ 143,422
Accumulated Depreciation | 12,676
Construction work in progress | $ 0
Cholla 500kV Switchyard |
Interests in jointly-owned facilities |
Percent Owned | 85.70%
Plant in Service | $ 7,651
Accumulated Depreciation | 1,597
Construction work in progress | $ 535
Saguaro 500kV Switchyard |
Interests in jointly-owned facilities |
Percent Owned | 60.00%
Plant in Service | $ 20,425
Accumulated Depreciation | 12,949
Construction work in progress | $ 0
Kyrene — Knox System |
Interests in jointly-owned facilities |
Percent Owned | 50.00%
Plant in Service | $ 578
Accumulated Depreciation | 315
Construction work in progress | $ 0

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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 http://asc.fasb.org/extlink&oid=115995737&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 http://asc.fasb.org/extlink&oid=115995737&loc=d3e659983-123033 + Details
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