California Independent System Operator

Balancing Authority Summary Information

California Independent System Operator is ranked #7 out of 64 balancing authorities in terms of total annual electricity generation.

Balancing Authority	California Independent System Operator
States	Arizona California Nevada New Mexico
Last Update	Jul 2026
Annual Generation	169.4 TWh
Power Plants	2,135
Utilities	988
Ranked #7 out of 64 in terms of net annual generation
Ranked #12 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 34% Solar \| 30% Water \| 12.4% Wind \| 11.3% Nuclear \| 11%

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Daily Net Generation for California Independent System Operator for the past 3 Years

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Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Victor Dry Farm Ranch A	AES Distributed Energy	Victorville, CA	10 GWh	May 2015	Dec 2025	Solar
Victor Dry Farm Ranch B	AES Distributed Energy	Victorville, CA	10 GWh	May 2015	Dec 2025	Solar
Tahquitz High School	AES Distributed Energy	Hemet, CA	2 GWh	Aug 2012	Dec 2025	Solar
SEPV Mojave West	AES Distributed Energy	Mojave, CA	53 GWh	May 2016	Dec 2025	Solar
Lancaster WAD B	AES Distributed Energy	Lancaster, CA	7 GWh	Mar 2017	Dec 2025	Solar
Central Antelope Dry Ranch C	AES Distributed Energy	Lancaster, CA	39 GWh	Apr 2016	Dec 2025	Solar
Elevation Solar C	AES Distributed Energy	Lancaster, CA	107 GWh	Nov 2016	May 2026	Solar
Citizen B	AES Distributed Energy	Mendota, CA	9 GWh	Nov 2015	Dec 2025	Solar
Aspiration G	AES Distributed Energy	Cantua Creek, CA	21 GWh	Aug 2017	Dec 2025	Solar
Sierra Solar Greenworks	AES Distributed Energy	Lancaster, CA	41 GWh	Oct 2015	Dec 2025	Solar
Victor Mesa Linda D2	AES Distributed Energy	Victorville, CA	4 GWh	Oct 2014	Dec 2025	Solar
Adera Solar	AES Distributed Energy	Chowchilla, CA	33 GWh	Nov 2015	Dec 2025	Solar
Victor Mesa Linda E2	AES Distributed Energy	Victorville, CA	4 GWh	Oct 2014	Dec 2025	Solar
SEPV Palmdale East	AES Distributed Energy	Palmdale, CA	24 GWh	Jul 2015	Dec 2025	Solar
SEPV 18	AES Distributed Energy	Palmdale, CA	4 GWh	Dec 2015	Dec 2025	Solar
AES Huntington Beach Energy Project	AES Huntington Beach Energy, LLC	Huntington Beach, CA	2 TWh	Jan 2020	May 2026	Natural Gas
AES Huntington Beach LLC	AES Huntington Beach LLC	Huntington Beach, CA	7 GWh	May 1958	Mar 2026	Natural Gas
Community Solar Utica 1, LLC	AETS OpCo Holdings LLC	Kettleman, CA	2 GWh	Feb 2025	Dec 2025	Solar
Crystal Farms Local Solar	Agilitas Energy, Inc.	San Joaquin, CA	9 GWh	Oct 2023	Dec 2025	Solar
Wheeler Ridge	Agilitas Energy, Inc.	Bakersfield, CA	13 GWh	Aug 2023	Dec 2025	Solar
Fresno Community Solar	Agilitas Energy, Inc.	Fresno, CA	17 GWh	May 2024	Dec 2025	Solar
Agua Caliente Solar Project	Agua Caliente Solar	Dateland, AZ	525 GWh	Apr 2012	May 2026	Solar
Bishop Ranch - BR 15-DD	Alcosta Boulevard BR 15-DD Solar Project 2020, LLC	San Ramon, CA	62 MWh	Feb 2025	May 2025	Solar
Algonquin SKIC 10 Solar, LLC	Algonquin Power Co	Taft, CA	16 GWh	Dec 2016	Dec 2025	Solar
Algonquin SKIC20 Solar LLC	Algonquin Power Co	Taft, CA	41 GWh	Apr 2015	Dec 2025	Solar
Alpine Solar	Alpine BESS LLC	Lancaster, CA	114 GWh	Jan 2013	Dec 2025	Solar
Verwey-Hanford Dairy Digester #1	AlsoEnergy	Hanford, CA	3 GWh	Sep 2016	Dec 2025	Other Biomass Gas
Alta Wind Energy Center I	Alta Wind I, LLC	Mojave, CA	400 GWh	Dec 2010	Dec 2025	Wind
Alta Wind Energy Center II	Alta Wind II, LLC	Mojave, CA	318 GWh	Dec 2010	Dec 2025	Wind
Alta Wind Energy Center III	Alta Wind III, LLC	Mojave, CA	318 GWh	Jan 2011	Dec 2025	Wind
Alta Wind Energy Center IV	Alta Wind IV, LLC	Mojave, CA	168 GWh	Mar 2011	Dec 2025	Wind
Alta Wind Energy Center V	Alta Wind V, LLC	Mojave, CA	254 GWh	Mar 2011	Dec 2025	Wind
Alta Wind X	Alta Wind X, LLC	Mojave, CA	361 GWh	Dec 2013	Dec 2025	Wind
Alta Wind XI	Alta Wind XI, LLC	Mojave, CA	251 GWh	Dec 2013	Dec 2025	Wind
Blythe Energy Inc	AltaGas Blythe Operations Inc	Blythe, CA	316 GWh	Nov 2003	May 2026	Natural Gas
AltaGas Ripon Energy Inc.	AltaGas Ripon Energy Inc.	Ripon, CA	1 GWh	Mar 1988	Apr 2026	Natural Gas
Gridley Main Two	Altus Power America Management, LLC	Gridley, CA	4 GWh	Mar 2013	Dec 2025	Solar
Sun Harvest Solar NDP1	Altus Power America Management, LLC	Dos Palos, CA	3 GWh	Apr 2015	Dec 2025	Solar
Kingsburg Solar	Altus Power America Management, LLC	Kingsburg, CA	6 GWh	Nov 2013	Dec 2025	Solar
Exeter Solar	Altus Power America Management, LLC	Exeter, CA	6 GWh	Jan 2014	Dec 2025	Solar
North Palm Springs 1A	Altus Power America Management, LLC	Palm Springs, CA	5 GWh	Mar 2012	Dec 2025	Solar
Ivanhoe Solar	Altus Power America Management, LLC	Visalia, CA	5 GWh	Dec 2013	Dec 2025	Solar
Chuckawalla Solar	Altus Power America Management, LLC	Blythe, CA	7 GWh	May 2012	Dec 2025	Solar
North Palm Springs 4A	Altus Power America Management, LLC	Palm Springs, CA	8 GWh	Sep 2012	Dec 2025	Solar
Lindsay Solar	Altus Power America Management, LLC	Lindsay, CA	7 GWh	Dec 2013	Dec 2025	Solar
Porterville Solar	Altus Power America Management, LLC	Porterville, CA	6 GWh	Dec 2013	Dec 2025	Solar
Radiance Solar 4	Altus Power America Management, LLC	Lancaster, CA	3 GWh	Jun 2013	Dec 2025	Solar
Cloverdale Solar I	Altus Power America Management, LLC	Cloverdale, CA	1 GWh	May 2014	Dec 2025	Solar
Park Meridian #1	Altus Power America Management, LLC	Riverside, CA	3 GWh	Feb 2015	Dec 2025	Solar
Ironwood Solar LLC	Altus Power America Management, LLC	Blythe, CA	7 GWh	Mar 2012	Dec 2025	Solar
Nickel 1 Solar Facility	Altus Power America Management, LLC	Lost Hills, CA	2 GWh	Oct 2012	Dec 2025	Solar
Terra Francesco	Altus Power America Management, LLC	Ontario, CA	2 GWh	Feb 2015	Dec 2025	Solar
Radiance Solar 5	Altus Power America Management, LLC	Lancaster, CA	3 GWh	Jun 2013	Dec 2025	Solar
Gridley Main	Altus Power America Management, LLC	Gridley, CA	1 GWh	Feb 2013	Dec 2025	Solar
Rancho Cucamonga Dist #1	Altus Power America Management, LLC	Rancho Cucamonga, CA	3 GWh	Mar 2015	Dec 2025	Solar
Deer Creek 2	Altus Power America Management, LLC	Shingle Springs, CA	3 GWh	Nov 2021	Dec 2025	Solar
Catalina Express	Altus Power America Management, LLC	San Pedro, CA	2 GWh	Nov 2020	Dec 2025	Solar
Marina South	Altus Power America Management, LLC	San Pedro, CA	2 GWh	Nov 2020	Dec 2025	Solar
USPS PV	Altus Power America Management, LLC	Los Angeles, CA	11 GWh	Jun 2017	Dec 2025	Solar
El Dorado Solar, LLC	Altus Power America Management, LLC	El Dorado Hills, CA	3 GWh	Mar 2021	Dec 2025	Solar
PFMG Solar Grossmont Helix LLC	Altus Power America Management, LLC	La Mesa, CA	2 GWh	Apr 2018	Dec 2025	Solar
IGS KSBD	Altus Power America Management, LLC	Highland, CA	9 GWh	Feb 2022	Dec 2025	Solar
AM Wind Repower	AM Wind Repower LLC	Whitewater, CA	76 GWh	Feb 2025	May 2026	Wind
Ameresco Butte County	Ameresco Butte County LLC	Paradise, CA	15 GWh	Jan 2013	Dec 2025	Landfill Gas
Ameresco Chiquita Canyon	AMERESCO Chiquita Canyon LLC	Castaic, CA	2 GWh	Oct 2010	Dec 2024	Landfill Gas
Ameresco Forward	Ameresco Forward, LLC	Manteca, CA	32 GWh	Jan 2014	Dec 2025	Landfill Gas
Ameresco Johnson Canyon	Ameresco Johnson Canyon LLC	Gonzales, CA	10 GWh	Apr 2013	Dec 2025	Landfill Gas
Ameresco Keller Canyon	AMERESCO Keller Canyon LLC	Bay Point, CA	16 GWh	Jun 2009	Dec 2025	Landfill Gas
Ameresco Ox Mountain	AMERESCO Ox Mountain Energy LLC	Half Moon Bay, CA	81 GWh	Nov 2008	May 2026	Landfill Gas
Ameresco San Joaquin	Ameresco San Joaquin, LLC	Linden, CA	25 GWh	Mar 2014	Dec 2025	Landfill Gas
Ameresco Santa Cruz Energy	AMERESCO Santa Cruz Energy LLC	Watsonville, CA	14 GWh	Dec 2005	Dec 2025	Landfill Gas
Ameresco Vasco Road	Ameresco Vasco Road, LLC	Livermore, CA	33 GWh	Feb 2013	Dec 2025	Landfill Gas
Anaheim Solar Energy Plant	Anaheim Public Utilities	Anaheim, CA	2 GWh	Jul 2014	Dec 2025	Solar
Angela Solar Project	Angiola East LLC	Alpaugh, CA	11 GWh	-	May 2026	Solar
AVI Bakersfield	Anthony Vineyards, Inc.	Bakersfield, CA	3 GWh	May 2022	Dec 2025	Solar
AP North Lake I, LP	AP North Lake I, LP	Hemet, CA	46 GWh	Jul 2015	Dec 2025	Solar
Oroville Cogeneration, LLC	Apex Power Generation Corp.	Oroville, CA	116 MWh	Dec 1989	Dec 2025	Natural Gas
Apple Campus 2 Fuel Cell	Apple, Inc	Cupertino, CA	31 GWh	May 2017	Dec 2025	Landfill Gas
Apple Campus 2 PV	Apple, Inc	Cupertino, CA	16 GWh	May 2017	Dec 2025	Solar
Aquamarine	Aqua	Lemoore, CA	650 GWh	Aug 2021	May 2026	Solar
Watson Cogeneration	ARCO Products Co-Watson	Carson, CA	2 TWh	Nov 1987	May 2026	Natural Gas : 76.2% Other Gas : 23.1% Waste/Other Oil : 0.7%
Farmersville	Arevon Energy, Inc.	Farmersville, CA	6 GWh	Jun 2014	Dec 2025	Solar
Nicolis Solar PV Plant	Arevon Energy, Inc.	Delano, CA	46 GWh	Aug 2016	Dec 2025	Solar
Centinela Solar Energy	Arevon Energy, Inc.	Calexico, CA	449 GWh	Jun 2013	Dec 2025	Solar
CA Flats Solar 150, LLC	Arevon Energy, Inc.	Shandon, CA	288 GWh	Jan 2019	May 2026	Solar
Quinto Solar PV Project	Arevon Energy, Inc.	Gustine, CA	243 GWh	Oct 2015	Dec 2025	Solar
Kingbird A Solar LLC	Arevon Energy, Inc.	Rosamond, CA	38 GWh	Mar 2016	Dec 2025	Solar
Tropico Solar PV Plant	Arevon Energy, Inc.	Delano, CA	32 GWh	Aug 2016	Dec 2025	Solar
Hanford 1 and 2	Arevon Energy, Inc.	Hanford, CA	5 GWh	Jul 2014	Dec 2025	Solar
Porterville 6 and 7	Arevon Energy, Inc.	Porterville, CA	4 GWh	Jun 2014	Dec 2025	Solar
Tulare 1 and 2	Arevon Energy, Inc.	Tulare, CA	5 GWh	Dec 2013	Dec 2025	Solar
Kingbird B Solar, LLC	Arevon Energy, Inc.	Rosamond, CA	55 GWh	Mar 2016	Dec 2025	Solar
Coronal Lost Hills	Arevon Energy, Inc.	Lost Hills, CA	35 GWh	Apr 2015	Dec 2025	Solar
Arica Solar	Arica Solar, LLC	Desert Center, CA	740 GWh	Feb 2024	May 2026	Solar
SunAnza	Arizona Electric Pwr Coop Inc	Anza, CA	8 GWh	Aug 2017	Dec 2025	Solar
Arlington Energy Center II	Arlington Energy Center II	Blythe, CA	641 GWh	Feb 2022	May 2026	Solar
Arlington Energy Center III	Arlington Energy Center III	Blythe, CA	334 GWh	Jul 2022	May 2026	Solar
AV Solar Ranch One	AV Solar Ranch 1 LLC	Lancaster, CA	560 GWh	Jul 2014	May 2026	Solar
Phoenix Wind Power LLC	Avangrid Power LLC	North Palm Springs, CA	5 GWh	May 1999	Dec 2025	Wind
Manzana Wind LLC	Avangrid Power LLC	Rosamond, CA	519 GWh	Nov 2012	Dec 2025	Wind

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#25	Arizona Public Service Company	25.2 TWh	100
#54	Arlington Valley, LLC	3.2 TWh	1
#38	Balancing Authority of Northern California	13.7 TWh	90
#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
#51	PUD No. 1 of Douglas County	4.4 TWh	4
#19	Salt River Project Agricultural Improvement and Power District	60.3 TWh	49
#57	Turlock Irrigation District	1.9 TWh	11
#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
#3	Electric Reliability Council of Texas, Inc.	494.1 TWh	1,471
#5	Southwest Power Pool	306.8 TWh	856
#6	Southern Company Services, Inc. - Trans	253.5 TWh	422
#7	California Independent System Operator	169.4 TWh	2,135
#9	Tennessee Valley Authority	163.4 TWh	207
#10	Florida Power & Light Co.	152.2 TWh	187
#12	New York Independent System Operator	134.3 TWh	1,299
#13	Duke Energy Carolinas	112.6 TWh	577
#15	ISO New England	111.1 TWh	1,629
#16	Bonneville Power Administration	91.6 TWh	167