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
Maxim	Bloom Energy	San Jose, CA	7 GWh	Jul 2014	Dec 2025	Natural Gas
Pixar - Emeryville	Bloom Energy	Emeryville, CA	7 GWh	Dec 2013	Dec 2025	Natural Gas
Copper Mountain Solar 4, LLC	RWE Clean Energy	Boulder City, NV	248 GWh	Aug 2016	Dec 2025	Solar
Kingbird A Solar LLC	Arevon Energy, Inc.	Rosamond, CA	38 GWh	Mar 2016	Dec 2025	Solar
UC Davis South Campus	Solar Star California XXXII, LLC	Davis, CA	12 GWh	Feb 2015	Dec 2025	Solar
Windhub Solar A LLC	EDP Renewables North America LLC	Mojave, CA	48 GWh	Nov 2019	Dec 2025	Solar
Corcoran Solar 3	RWE Clean Energy	Corcoran, CA	48 GWh	Jan 2016	Dec 2025	Solar
Oro Loma	RWE Clean Energy	Oro Loma, CA	49 GWh	Dec 2016	Dec 2025	Solar
SunE- E Philadelphia Ontario	SunEdison LLC	Ontario, CA	2 GWh	Feb 2016	Dec 2025	Solar
RE Tranquillity	Southern Power Co	Cantua Creek, CA	485 GWh	Jun 2016	Dec 2025	Solar
Morgan Lancaster 1	Terraform Arcadia	Lancaster, CA	818 MWh	Aug 2015	Dec 2025	Solar
Potrero Hills Energy Producers	Potrero Hills Energy Producers, LLC	Suisun City, CA	56 GWh	Mar 2016	Dec 2025	Landfill Gas
Western Antelope Blue Sky B	AES Distributed Energy	Lancaster, CA	52 GWh	Nov 2016	Dec 2025	Solar
North Lancaster Ranch	AES Distributed Energy	Lancaster, CA	39 GWh	Nov 2016	Dec 2025	Solar
Central Antelope Dry Ranch C	AES Distributed Energy	Lancaster, CA	39 GWh	Apr 2016	Dec 2025	Solar
Columbia Solar Energy, LLC	Columbia Solar Energy LLC	Pittsburg, CA	12 GWh	Sep 2015	Dec 2025	Solar
Morelos del Sol	Southern Power Co	Lost Hills, CA	31 GWh	Oct 2015	Dec 2025	Solar
Adera Solar	AES Distributed Energy	Chowchilla, CA	33 GWh	Nov 2015	Dec 2025	Solar
SunE Rochester	SunE Solar XVI Lessor, LLC	Rancho Cucamonga, CA	946 MWh	Jul 2016	Dec 2025	Solar
Tequesquite Landfill Solar PV Project	Solar Star California XXXI, LLC	Riverside, CA	11 GWh	Sep 2015	Dec 2025	Solar
Frontier Solar LLC	Boralex US Operations LLC	Newman, CA	48 GWh	May 2016	Dec 2025	Solar
Golden Hills Wind	Golden Hills Wind, LLC	Livermore, CA	253 GWh	Nov 2015	Dec 2025	Wind
CED Avenal	RWE Clean Energy	Avenal, CA	16 GWh	Dec 2016	Dec 2025	Solar
CED Ducor 1	RWE Clean Energy	Ducor, CA	52 GWh	Nov 2016	Dec 2025	Solar
CED Ducor 2	RWE Clean Energy	Ducor, CA	52 GWh	Nov 2016	Dec 2025	Solar
CED Ducor 3	RWE Clean Energy	Ducor, CA	38 GWh	Nov 2016	Dec 2025	Solar
CED Ducor 4	RWE Clean Energy	Ducor, CA	52 GWh	Nov 2016	Dec 2025	Solar
AVS Lancaster 1	Tesla Inc.	Lancaster, CA	6 GWh	Nov 2016	Dec 2025	Solar
US-TOPCO (Soccer Center)	Tesla Inc.	Lancaster, CA	4 GWh	Nov 2016	Dec 2025	Solar
Kingbird B Solar, LLC	Arevon Energy, Inc.	Rosamond, CA	55 GWh	Mar 2016	Dec 2025	Solar
Blythe Solar 110, LLC	Blythe Solar 110, LLC	Blythe, CA	284 GWh	Feb 2016	Dec 2025	Solar
Building F	Golden Springs Development Company LLC	Santa Fe Springs, CA	1 GWh	Oct 2016	Dec 2025	Solar
Building G	Golden Springs Development Company LLC	Santa Fe Springs, CA	2 GWh	Aug 2016	Dec 2025	Solar
Buidling L	Golden Springs Development Company LLC	Santa Fe Springs, CA	1 GWh	Oct 2016	Dec 2025	Solar
Dulles	Golden Springs Development Company LLC	Jurupa Valley, CA	2 GWh	Aug 2016	Dec 2025	Solar
Freeway Springs	Golden Springs Development Company LLC	Santa Fe Springs, CA	3 GWh	Sep 2016	Dec 2025	Solar
Antelope DSR 2	AES Distributed Energy	Lancaster, CA	14 GWh	Nov 2016	Dec 2025	Solar
Whitethorn Solar LLC	Whitethorn Solar LLC	Livermore, CA	5 GWh	Jan 2016	Dec 2025	Solar
Equinix San Jose	Bloom Energy	San Jose, CA	7 GWh	Oct 2015	Dec 2025	Natural Gas
Intel Santa Clara	Bloom Energy	Santa Clara, CA	7 GWh	Dec 2014	Dec 2025	Natural Gas
RE Garland	Southern Power Co	Rosamond, CA	510 GWh	Oct 2016	Dec 2025	Solar
Algonquin SKIC 10 Solar, LLC	Algonquin Power Co	Taft, CA	16 GWh	Dec 2016	Dec 2025	Solar
Silicon Valley Clean Water	Silicon Valley Clean Water	Redwood City, CA	8 GWh	Feb 2015	Dec 2025	Other Biomass Gas : 95.0% Natural Gas : 5.0%
Weymouth Solar Plant	Metropolitan Water District of S CA	La Verne, CA	3 GWh	May 2016	Dec 2025	Solar
Antelope Big Sky Ranch	AES Distributed Energy	Lancaster, CA	50 GWh	Jul 2016	Dec 2025	Solar
Summer Solar LLC	AES Distributed Energy	Lancaster, CA	56 GWh	Jun 2016	Dec 2025	Solar
Central Antelope Dry Ranch B LLC	Central Antelope Dry Ranch B, LLC	Lancaster, CA	6 GWh	Aug 2017	Dec 2025	Solar
Portal Ridge Solar B, LLC	Portal Ridge Solar, LLC	Lancaster, CA	53 GWh	Jan 2017	Dec 2025	Solar
Portal Ridge Solar C, LLC	Portal Ridge Solar, LLC	Lancaster, CA	29 GWh	Jan 2017	Dec 2025	Solar
RE Garland A	Southern Power Co	Rosamond, CA	57 GWh	Aug 2016	Dec 2025	Solar
Munro Valley Solar	Ecos Energy LLC	Olancha, CA	9 GWh	Sep 2016	Dec 2025	Solar
RCWD PV Project	MN8 Energy LLC	Murrieta, CA	8 GWh	May 2016	Dec 2025	Solar
CA Dept of Public Health at Richmond	California PV Energy LLC	Richmond, CA	4 GWh	Dec 2016	Dec 2025	Solar
E&B Resources	Terraform Arcadia	Bakersfield, CA	2 GWh	Nov 2013	Dec 2025	Solar
Corcoran	Terraform Arcadia	Corcoran, CA	2 GWh	Dec 2013	Dec 2025	Solar
Waterman Turnout Hydroelectric	San Bernardino Valley Mun. Water Dist.	San Bernardino, CA	2 GWh	Aug 2024	Dec 2025	Water
Bayshore Solar B, LLC	AES Distributed Energy	Lancaster, CA	42 GWh	Nov 2017	Dec 2025	Solar
Bayshore Solar C, LLC	AES Distributed Energy	Lancaster, CA	41 GWh	Nov 2017	Dec 2025	Solar
Bayshore Solar A, LLC	AES Distributed Energy	Lancaster, CA	44 GWh	Nov 2017	Dec 2025	Solar
Longboat Solar, LLC	Duke Energy Renewables Services	Barstow, CA	54 GWh	Nov 2016	Dec 2025	Solar
Redwood 4 Solar Farm	54 KR 8me LLC	Edison, CA	19 GWh	Nov 2017	Dec 2025	Solar
Valley Center	Heelstone Energy Holdings, LLC	Valley Center, CA	4 GWh	Nov 2016	Dec 2025	Solar
NLP Granger	Heelstone Energy Holdings, LLC	Valley Center, CA	5 GWh	Aug 2016	Dec 2025	Solar
Solar Blythe 2	NRG Solar Blythe II LLC	Blythe, CA	41 GWh	Mar 2017	Dec 2025	Solar
San Joaquin Solar	GASNA 6P, LLC	San Joaquin, CA	22 GWh	Apr 2018	Dec 2025	Solar
PVN Milliken, LLC	PVN Milliken, LLC	Ontario, CA	5 GWh	May 2017	Dec 2025	Solar
SunAnza	Arizona Electric Pwr Coop Inc	Anza, CA	8 GWh	Aug 2017	Dec 2025	Solar
Cloverdale Solar Center	Adapture Renewables, Inc.	Cloverdale, CA	2 GWh	Apr 2019	Dec 2025	Solar
Genentech Vacaville Meter #1	Tesla Inc.	Vacaville, CA	12 GWh	Apr 2017	Dec 2025	Solar
Solar Star California, XLIV, LLC	MN8 Energy LLC	Pearblossom, CA	23 GWh	Nov 2016	Dec 2025	Solar
Verwey-Hanford Dairy Digester #1	AlsoEnergy	Hanford, CA	3 GWh	Sep 2016	Dec 2025	Other Biomass Gas
Jacumba Solar Farm	Invenergy Services LLC	Jacumba, CA	46 GWh	Jun 2017	Dec 2025	Solar
Whitney Point Solar	Whitney Point Solar, LLC	Five Points, CA	54 GWh	Feb 2017	Dec 2025	Solar
CSUF Nutwood Solar	MN8 Energy LLC	Fullerton, CA	3 GWh	Nov 2016	Dec 2025	Solar
NextEra Westside PV	Westside Solar, LLC	Five Points, CA	26 GWh	Feb 2017	Dec 2025	Solar
Lindberg Field Solar 2	Lindberg Field Solar 2, LLC	San Diego, CA	2 GWh	Jan 2017	Dec 2025	Solar
Ramona Solar Energy	San Diego Gas & Electric Co	Ramona, CA	2 GWh	Mar 2017	Dec 2025	Solar
SCDA Solar 1	SCDA Solar 1, LLC	Sacramento, CA	14 GWh	Sep 2017	Dec 2025	Solar
Marin Clean Energy Solar One	AES Distributed Energy	Richmond, CA	21 GWh	Nov 2017	Dec 2025	Solar
Foundation CDCR LAC	Foundation CA Fund VIII Manager, LLC	Lancaster, CA	4 GWh	Nov 2017	Dec 2025	Wind
Foundation Scheid Vineyards	Foundation CA Fund VIII Manager, LLC	Greenfield, CA	4 GWh	Aug 2017	Dec 2025	Wind
Manteca Land PV	AES Distributed Energy	Manteca, CA	2 GWh	Nov 2017	Dec 2025	Solar
Delano Land 1	AES Distributed Energy	Delano, CA	892 MWh	Nov 2017	Dec 2025	Solar
Bakersfield PV 1	AES Distributed Energy	Bakersfield, CA	6 GWh	Nov 2017	Dec 2025	Solar
AT&T Holger	Bloom Energy	San Jose, CA	1 GWh	May 2016	Dec 2025	Natural Gas
AT&T Anaheim	Bloom Energy	Anaheim, CA	7 GWh	Aug 2016	Dec 2025	Natural Gas
Green Beanworks C PV	AES Distributed Energy	Palmdale, CA	8 GWh	Jul 2018	Dec 2025	Solar
Green Beanworks D PV	AES Distributed Energy	Palmdale, CA	6 GWh	Jul 2018	Dec 2025	Solar
USPS PV	Altus Power America Management, LLC	Los Angeles, CA	11 GWh	Jun 2017	Dec 2025	Solar
Antelope DSR 3	AES Distributed Energy	Lancaster, CA	55 GWh	Aug 2019	Dec 2025	Solar
Green Beanworks B PV	AES Distributed Energy	Lancaster, CA	6 GWh	Nov 2018	Dec 2025	Solar
One Ten Partners PV	One Ten Partners, LLC	Palmdale, CA	6 GWh	Aug 2017	Dec 2025	Solar
Merced 1 PV	ZGlobal Inc	Los Banos, CA	6 GWh	Mar 2018	Dec 2025	Solar
Madera 1 PV	ZGlobal Inc	Madera, CA	3 GWh	Nov 2017	Dec 2025	Solar
Foundation California Training Facility	Foundation CA Fund IX Manager, LLC	Soledad, CA	6 GWh	Jul 2018	Dec 2025	Wind
Foundation Mann Packing	Foundation CA Fund IX Manager, LLC	Gonzales, CA	6 GWh	Mar 2019	Dec 2025	Wind
Foundation SaIinas Valley State Prison	Foundation CA Fund IX Manager, LLC	Soledad, CA	5 GWh	Jul 2018	Dec 2025	Wind
Gaskell West 1 Solar Facility	Southern Power Co	Lancaster, CA	56 GWh	Feb 2018	Dec 2025	Solar
RE Gaskell West 3 LLC	RE Gaskell West LLC	Rosamond, CA	51 GWh	Apr 2023	Dec 2025	Solar
RE Gaskell West 4 LLC	RE Gaskell West LLC	Rosamond, CA	48 GWh	Apr 2023	Dec 2025	Solar

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