Arizona Public Service Company

Balancing Authority Summary Information

Arizona Public Service Company is ranked #25 out of 64 balancing authorities in terms of total annual electricity generation.

Balancing Authority	Arizona Public Service Company
States	Arizona New Mexico
Last Update	Jul 2026
Annual Generation	25.2 TWh
Power Plants	100
Utilities	56
Ranked #25 out of 64 in terms of net annual generation
Ranked #27 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 39.5% Coal \| 27.7% Solar \| 23.1% Wind \| 10.1% Other Fuel \| 0.9%

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Daily Net Generation for Arizona Public Service Company for the past 3 Years

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Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Yuma Solar + Storage	Invenergy Services LLC	Fortuna Foothills, AZ	201 GWh	Feb 2025	May 2026	Solar
Yuma Cogeneration Associates	Falcon Power Operating Company	Yuma, AZ	15 GWh	Feb 1994	May 2026	Natural Gas
Yucca	Arizona Public Service Co	Yuma, AZ	174 GWh	Mar 1959	May 2026	Natural Gas : 98.4% Distillate Fuel Oil : 1.6%
West Phoenix	Arizona Public Service Co	Phoenix, AZ	4 TWh	Apr 1972	May 2026	Natural Gas
West Camp Wind Farm	AES Clean Energy	Heber, AZ	135 GWh	-	May 2026	Wind
Vista Grande HS at Casa Grande	Luminace Solar Holding, LLC	Casa Grande, AZ	3 GWh	Nov 2012	Dec 2025	Solar
Union HS at Casa Grande	Luminace Solar Holding, LLC	Casa Grande, AZ	3 GWh	Nov 2012	Dec 2025	Solar
Sun Streams 4	Sun Streams Expansion, LLC	Tonopah, AZ	748 GWh	Feb 2025	May 2026	Solar
Sun Streams 3	Sun Streams PVS, LLC	Arlington, AZ	428 GWh	May 2024	May 2026	Solar
Solana Generating Station	Arizona Solar One LLC	Gila Bend, AZ	864 GWh	Sep 2013	May 2026	Solar
Serrano	Serrano Solar, LLC	Marana, AZ	422 GWh	Mar 2025	May 2026	Solar
Saguaro	Arizona Public Service Co	Red Rock, AZ	118 GWh	Apr 1972	Dec 2025	Natural Gas
Saddle Mountain Solar I	SunE AZ2, LLC	Tonopah, AZ	33 GWh	Nov 2012	Dec 2025	Solar
Red Rock	Arizona Public Service Co	Red Rock, AZ	88 GWh	Jan 2017	May 2026	Solar
RE Gillespie 1 LLC	MN8 Energy LLC	Gila Bend, AZ	39 GWh	Nov 2013	Dec 2025	Solar
RE Bagdad Solar I LLC	Duke Energy Renewables Services	Bagdad, AZ	30 GWh	Nov 2011	Dec 2025	Solar
RE Ajo 1 LLC	Duke Energy Renewables Services	Ajo, AZ	9 GWh	Jul 2011	Dec 2025	Solar
Prescott Solar Plant	SunE AZ1, LLC	Prescott, AZ	23 GWh	Nov 2011	Dec 2025	Solar
Prescott Airport	Arizona Public Service Co	Prescott, AZ	6 GWh	Sep 2002	Dec 2025	Solar
Poseidon Wind, LLC	Axium Arizona Renewables, LLC	Herber, AZ	100 GWh	Nov 2010	May 2026	Wind
Phoenix Airport Rental Car Center	SunStrong Management, LLC	Phoenix, AZ	4 GWh	Nov 2012	Dec 2025	Solar
Phoenix Airport East Economy Lot	SunStrong Management, LLC	Phoenix, AZ	777 MWh	Nov 2012	Dec 2025	Solar
Perrin Ranch Wind LLC	Perrin Ranch Wind LLC	Williams, AZ	170 GWh	Dec 2011	May 2026	Wind
Paradise Valley H.S. PV	AES Distributed Energy	Phoenix, AZ	2 GWh	Dec 2012	Dec 2025	Solar
Papago PV	RE Papago PV LLC	Tonopah, AZ	75 GWh	-	May 2026	Solar
Paloma Solar Hybrid	Arizona Public Service Co	Gila Bend, AZ	30 GWh	Aug 2011	Dec 2025	Solar
Ocotillo	Arizona Public Service Co	Tempe, AZ	379 GWh	Feb 1960	May 2026	Natural Gas
Novo BioPower Plant	Novo Biopower LLC	Snowflake, AZ	202 GWh	May 2008	Dec 2025	Wood/Wood Waste Solids
Northwest Regional	WM Renewable Energy LLC	Surprise, AZ	21 GWh	Jul 2012	Dec 2025	Landfill Gas
Mesquite Solar 5, LLC	RWE Clean Energy	Tonopah, AZ	129 GWh	Jun 2023	May 2026	Solar
Macys Goodyear	Macys Corporate Services, Inc	Goodyear, AZ	3 GWh	Nov 2010	Dec 2024	Solar
Luke Solar	Arizona Public Service Co	Glendale, AZ	27 GWh	May 2015	Dec 2025	Solar
Lake Pleasant WTP	MN8 Energy LLC	Peoria, AZ	14 GWh	Nov 2012	Dec 2025	Solar
Kingman 1	Kingman Energy Corp	Kingman, AZ	20 GWh	Aug 2011	May 2026	Wind : 96.2% Solar : 3.8%
Jewish Community Center PV	AES Distributed Energy	Scottsdale, AZ	2 GWh	Aug 2012	Dec 2025	Solar
Intel - Ocotillo Campus Solar	Tesla Inc.	Chandler, AZ	3 GWh	Nov 2017	Dec 2025	Solar
Hyder Solar Hybrid	Arizona Public Service Co	Hyder, AZ	31 GWh	Oct 2011	Dec 2025	Solar
Hyder II Hybrid	Arizona Public Service Co	Hyder, AZ	25 GWh	Nov 2013	Dec 2025	Solar
Harquahala Sun Solar Project	Copia Power	Tonopah, AZ	470 GWh	Mar 2025	May 2026	Solar
Harquahala 2	Copia Power	Tonopah, AZ	851 GWh	Mar 2025	May 2026	Solar
Gilbert Solar Facility I, LLC	Gilbert Solar Facility I, LLC	Gilbert, AZ	4 GWh	Sep 2011	Dec 2025	Solar
Gila Bend Hybrid	Arizona Public Service Co	Gila Bend, AZ	72 GWh	Sep 2014	Dec 2025	Solar
Four Corners	Arizona Public Service Co	Fruitland, NM	9 TWh	Jun 1969	May 2026	Bituminous Coal : 99.1% Natural Gas : 0.9%
Foothills Solar Plant Hybrid	Arizona Public Service Co	Yuma, AZ	80 GWh	Feb 2013	Dec 2025	Solar
Estrella Mountain PV	Tesla Inc.	Avondale, AZ	3 GWh	May 2019	Dec 2025	Solar
Douglas	Arizona Public Service Co	Douglas, AZ	218 MWh	Apr 1972	Dec 2025	Distillate Fuel Oil
Desert Star Hybrid	Arizona Public Service Co	Buckeye, AZ	24 GWh	Aug 2015	Dec 2025	Solar
Cotton Center Solar Hybrid	Arizona Public Service Co	Gila Bend, AZ	29 GWh	Oct 2011	Dec 2025	Solar
Cholla	Arizona Public Service Co	Joseph City, AZ	1 TWh	Apr 1962	Mar 2025	Subbituminous Coal : 99.9%
Chino Valley Solar	Arizona Public Service Co	Chino Valley, AZ	33 GWh	Nov 2012	Dec 2025	Solar
Chevelon Butte Wind Farm	AES Clean Energy	Winslow, AZ	579 GWh	Apr 2023	May 2026	Wind
Chevelon Butte Phase 2	AES Clean Energy	Winslow, AZ	485 GWh	Mar 2024	May 2026	Wind
Buckeye Union HS District 201	Luminace Solar Arizona, LLC	Buckeye, AZ	7 GWh	Nov 2011	Dec 2025	Solar
Box Canyon (AZ)	BOCA bn, LLC	Florence, AZ	872 GWh	May 2025	May 2026	Solar
Black Mountain Solar LLC	Duke Energy Renewables Services	Golden Valley, AZ	19 GWh	Nov 2012	Dec 2025	Solar
Banner Solar Ironwood	Banner Solar Ironwood LLC	Queen Creek, AZ	4 GWh	Nov 2021	Dec 2025	Solar
Badger 1	Desert Sky Solar LLC	Tonopah, AZ	30 GWh	Oct 2013	Dec 2025	Solar
AZ State University - Tempe Campus Solar	Arizona State University FDM	Tempe, AZ	2 GWh	Nov 2003	Dec 2025	Solar
Arlington Valley Solar Energy II	Arevon Energy, Inc.	Arlington, AZ	336 GWh	Mar 2013	Dec 2025	Solar
Arlington Valley Solar Energy I	RWE Clean Energy	Arlington, AZ	66 GWh	-	May 2026	Solar
Arizona Western College PV	AES Distributed Energy	Yuma, AZ	4 GWh	Oct 2011	Dec 2025	Solar
Arizona State University CHP	Energy Center Phoenix LLC	Tempe, AZ	39 GWh	Mar 2006	May 2026	Natural Gas
Amazon Goodyear	Westbound Solar 3, LLC	Goodyear, AZ	5 GWh	Jun 2023	Dec 2025	Solar
Agave	Arizona Public Service Co	Arlington, AZ	307 GWh	Aug 2023	May 2026	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#54	Arlington Valley, LLC	3.2 TWh	1
#7	California Independent System Operator	169.4 TWh	2,135
#46	El Paso Electric Company	7.3 TWh	37
#49	Imperial Irrigation District	6.2 TWh	66
#29	Los Angeles Department of Water and Power	18.8 TWh	131
#22	Nevada Power Company	36.8 TWh	143
#34	Public Service Company of New Mexico	16.1 TWh	137
#19	Salt River Project Agricultural Improvement and Power District	60.3 TWh	49
#37	Tucson Electric Power	14.0 TWh	55
#40	Western Area Power Administration - Desert Southwest Region	10.4 TWh	34

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#20	Duke Energy Florida, Inc.	47.4 TWh	100
#21	Public Service Company of Colorado	46.3 TWh	231
#22	Nevada Power Company	36.8 TWh	143
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	33.9 TWh	25
#24	Dominion Energy South Carolina, Inc.	25.3 TWh	83
#25	Arizona Public Service Company	25.2 TWh	100
#26	Associated Electric Cooperative, Inc.	23.4 TWh	47
#27	Western Area Power Administration - Rocky Mountain Region	22.5 TWh	193
#28	Tampa Electric Company	21.5 TWh	64
#29	Los Angeles Department of Water and Power	18.8 TWh	131