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	Oct 2026
Annual Generation	168.7 TWh
Power Plants	2,170
Utilities	1,001
Ranked #7 out of 64 in terms of net annual generation
Ranked #14 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 32% Solar \| 30.9% Water \| 12.2% Wind \| 11.8% Nuclear \| 11.2% Coal \| 0%

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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
Five H Farms Solar Array	Maas Energy Works	Merced, CA	2 GWh	Mar 2021	Dec 2025	Solar
Grapeland Hybrid	Southern California Edison Co	Rancho Cucamonga, CA	2 GWh	Aug 2007	Dec 2025	Natural Gas
Pivot Energy PPA 22	Pivot Energy	Visalia, CA	2 GWh	Sep 2024	Dec 2025	Solar
Mira Loma	Costco Wholesale	Mira Loma, CA	2 GWh	Oct 2011	Dec 2025	Solar
Sutter Santa Rosa Solar	Sutter Santa Rosa Solar LLC	Santa Rosa, CA	2 GWh	Aug 2019	Dec 2025	Solar
Fresno Bullard High School Hybrid	Forefront Power, LLC	Fresno, CA	2 GWh	Feb 2020	Dec 2025	Solar
Lancaster Solar 2	Boralex US Operations LLC	Lancaster, CA	2 GWh	Oct 2014	Dec 2025	Solar
Oakley Solar Project	Oakley Solar Project LLC	Oakley, CA	2 GWh	May 2013	Dec 2025	Solar
Dover Dairy	Renewable Solar, Inc	Hanford, CA	2 GWh	Apr 2022	Dec 2025	Solar
CamChino Leasing LLC	CamChino Leasing LLC	Chino, CA	2 GWh	Nov 1987	Dec 2025	Natural Gas
CSU San Jose State University	SkyHigh 2 Solar	San Jose, CA	2 GWh	Nov 2021	Dec 2025	Solar
Case Vander Eyk, Jr Dairy Solar	Bravo REC Management LLC	Pixley, CA	2 GWh	Sep 2023	Dec 2025	Solar
Nickel 1 Solar Facility	Altus Power America Management, LLC	Lost Hills, CA	2 GWh	Oct 2012	Dec 2025	Solar
CA Institute for Women	Ecoplexus, Inc	Chino, CA	2 GWh	Jan 2020	Dec 2025	Solar
PFMG Solar Grossmont Helix LLC	Altus Power America Management, LLC	La Mesa, CA	2 GWh	Apr 2018	Dec 2025	Solar
Lafayette 2 - MLK Jr. Hospital (MLK)	MN8 Energy LLC	Los Angeles, CA	2 GWh	Jul 2020	Dec 2025	Solar
Chambers 4 - Riverside LGB6	MN8 Energy LLC	Riverside, CA	2 GWh	Nov 2018	Dec 2025	Solar
Ameresco Chiquita Canyon	AMERESCO Chiquita Canyon LLC	Castaic, CA	2 GWh	Oct 2010	Dec 2024	Landfill Gas
Donaghy-Stockton	Donaghy Sales Inc.	Stockton, CA	2 GWh	Sep 2021	Dec 2025	Solar
Heliocentric	Heliocentric LLC	Palmdale, CA	2 GWh	Feb 2012	Dec 2025	Solar
Lindberg Field Solar 2	Lindberg Field Solar 2, LLC	San Diego, CA	2 GWh	Jan 2017	Dec 2025	Solar
Deadwood Creek	Hydro Sierra Energy, LLC	Dobbins, CA	2 GWh	Nov 1993	Dec 2025	Water
Summer Solar D2	AES Distributed Energy	Lancaster, CA	2 GWh	Jun 2014	Dec 2025	Solar
E&B Resources	Terraform Arcadia	Bakersfield, CA	2 GWh	Nov 2013	Dec 2025	Solar
SCCCD - Clovis Community College	Forefront Power, LLC	Fresno, CA	2 GWh	Nov 2018	Nov 2025	Solar
Lerdo Detention Facility - Solar 2, 3	County of Kern - (CA)	Bakersfield, CA	2 GWh	Oct 2021	Dec 2025	Solar
Building G	Golden Springs Development Company LLC	Santa Fe Springs, CA	2 GWh	Aug 2016	Dec 2025	Solar
Blue Moon Farms	Bravo REC Management LLC	Tipton, CA	2 GWh	Jul 2024	Dec 2025	Solar
Solar Star Palo Alto I, LLC	DG 1 Acquisition Co., LLC	Palo Alto, CA	2 GWh	Jul 2019	Dec 2025	Solar
Hanford Energy Park Peaker	MRP San Joaquin Energy LLC.	Hanford, CA	2 GWh	Aug 2001	Jul 2026	Natural Gas
Center Hybrid	Southern California Edison Co	Norwalk, CA	2 GWh	Aug 2007	Dec 2025	Natural Gas
Lake Elsinore Canopies - Lakeside HS	Standard Solar	Lake Elsinore, CA	2 GWh	Feb 2022	Dec 2025	Solar
Fresno Hoover High School Hybrid	Forefront Power, LLC	Fresno, CA	2 GWh	Feb 2020	Dec 2025	Solar
Division 2	Tesla Inc.	Lancaster, CA	2 GWh	May 2014	Dec 2025	Solar
Lodi	Northern California Power Agny	Lodi, CA	2 GWh	Jan 1986	Dec 2025	Natural Gas
Sutter Home Winery GIR	Westbound Solar 3, LLC	American Canyon, CA	2 GWh	Jul 2023	Dec 2025	Solar
Lavio Solar	Lavio Solar, LLC	Petaluma, CA	2 GWh	Mar 2018	Dec 2025	Solar
Grossmont HS Solar Project	MN8 Energy LLC	El Cajon, CA	2 GWh	Nov 2018	Dec 2025	Solar
California PV Energy at ISD WWTP	California PV Energy LLC	Oakley, CA	2 GWh	Jul 2014	Dec 2025	Solar
CalPeak Power Panoche Peaker Plant	CalPeak Power, LLC	Firebaugh, CA	2 GWh	Nov 2001	Nov 2025	Natural Gas
CA - DGS RFP - RJ Donovan State Prison	Forefront Power, LLC	San Diego, CA	2 GWh	Dec 2023	Dec 2025	Solar
Ramona Solar Energy	San Diego Gas & Electric Co	Ramona, CA	2 GWh	Mar 2017	Dec 2025	Solar
Gilead Foster City Solar Project	Gilead Sciences Inc. Foster City	Foster City, CA	2 GWh	Mar 2021	Dec 2025	Solar
Fontana	Southern California Edison Co	Rialto, CA	2 GWh	Nov 1917	Nov 2025	Water
CalRenew-1	CalRenew-1 LLC	Mendota, CA	2 GWh	Mar 2010	Dec 2025	Solar
Firebaugh-CCS-PV-1	Mike Woolf Farming	Firebaugh, CA	2 GWh	Feb 2015	Dec 2025	Solar
Corcoran	Terraform Arcadia	Corcoran, CA	2 GWh	Dec 2013	Dec 2025	Solar
RE-VFO LLC	RE-VFO LLC	Visalia, CA	2 GWh	Apr 2009	Dec 2025	Solar
Ma	CD US Solar MT 2 LLC	Lancaster, CA	2 GWh	Sep 2013	Dec 2025	Solar
Government Plaza Solar	SoCore Energy LLC	Visalia, CA	2 GWh	Oct 2020	Dec 2025	Solar
Cloverdale Solar Center	Adapture Renewables, Inc.	Cloverdale, CA	2 GWh	Apr 2019	Dec 2025	Solar
Marina South	Altus Power America Management, LLC	San Pedro, CA	2 GWh	Nov 2020	Dec 2025	Solar
Toadtown	Pacific Gas & Electric Co.	Magalia, CA	2 GWh	Mar 1986	Oct 2025	Water
Site 980 65	Madera-Chowchilla Power Auth	Madera, CA	2 GWh	Jan 1985	Jun 2025	Water
Sonoma Central Landfill Phase II	County of Sonoma Dept of Trnsp	Petaluma, CA	2 GWh	May 1996	Dec 2025	Landfill Gas
Palo Verde College	Scale Sustainable I, LLC	Blythe, CA	2 GWh	Jul 2009	Dec 2025	Solar
Castle Rock Vineyards	Castle Rock Cooling	Delano, CA	2 GWh	Aug 2010	Oct 2025	Solar
Madera Community Hospital	CleanCapital Holdings	Madera, CA	2 GWh	Sep 2011	Dec 2025	Solar
Hollister Wastewater Facility	SunStrong Management, LLC	Hollister, CA	2 GWh	Oct 2011	Dec 2025	Solar
CSD 2 - Heritage High	CleanCapital Holdings	Brentwood, CA	2 GWh	Aug 2013	Dec 2025	Solar
Anaheim Solar Energy Plant	Anaheim Public Utilities	Anaheim, CA	2 GWh	Jul 2014	Dec 2025	Solar
City of Madera WWTP	SunE GIL1, LLC	Madera, CA	2 GWh	Aug 2009	Dec 2025	Solar
SeaWorld Aquatica	Onyx Asset Services Group	Chula Vista, CA	2 GWh	Apr 2018	Dec 2025	Solar
Oaks HOA	Onyx Asset Services Group	Ione, CA	2 GWh	Mar 2025	Dec 2025	Solar
Las Positas College	Chabot Las Positas Community College District	Livermore, CA	2 GWh	Jul 2018	Dec 2025	Solar
Kroger La Habra	Ralph's Grocery Company	La Habra, CA	2 GWh	Mar 2020	Dec 2024	Solar
Santa Rosa Junior College Petaluma Solar	Sonoma County Junior College District	Petaluma, CA	2 GWh	Jun 2018	Dec 2025	Solar
Niagara Bottling Stockton	ClearGen LLC	Stockton, CA	2 GWh	Dec 2017	Dec 2025	Solar
Sutter Home Winery TCC	REC SHW, LLC	Paso Robles, CA	2 GWh	Apr 2024	Dec 2025	Solar
Bishop Ranch - BR 1-Y	Distributed Solar Development, LLC	San Ramon, CA	2 GWh	Feb 2022	Dec 2025	Solar
Dulles	Golden Springs Development Company LLC	Jurupa Valley, CA	2 GWh	Aug 2016	Dec 2025	Solar
SDCWA - Twin Oaks	CleanCapital Holdings	San Marcos, CA	2 GWh	Apr 2011	Dec 2025	Solar
Kettering Solar 1	Tesla Inc.	Lancaster, CA	2 GWh	May 2014	Nov 2025	Solar
Tulare Akers Professional Center	SoCore Energy LLC	Visalia, CA	2 GWh	Oct 2019	Dec 2025	Solar
City of Atwater NEM	SoCore Energy LLC	Atwater, CA	2 GWh	Nov 2024	Dec 2025	Solar
Golden Springs Building D	Golden Springs Development Company LLC	Santa Fe Springs, CA	2 GWh	Feb 2012	Dec 2025	Solar
Teichert Materials-Teichert Vernalis	Foundation HA Energy Generation, LLC	San Joaquin, CA	2 GWh	Sep 2010	Dec 2025	Wind
AltaGas Ripon Energy Inc.	AltaGas Ripon Energy Inc.	Ripon, CA	2 GWh	Mar 1988	Jul 2026	Natural Gas
Temescal Canyon RV, LLC	Temescal Canyon RV, LLC	Corona, CA	2 GWh	Apr 2011	Dec 2025	Solar
Dynegy Oakland Power Plant	Dynegy Oakland, LLC	Oakland, CA	2 GWh	Oct 1978	May 2026	Jet Fuel
Waterman Turnout Hydroelectric	San Bernardino Valley Mun. Water Dist.	San Bernardino, CA	2 GWh	Aug 2024	Dec 2025	Water
CA- US Foods- Livermore	EDPRNA DG CA Livermore LLC	Livermore, CA	2 GWh	Jul 2024	Dec 2025	Solar
Dos Palos	Greenbacker Renewable Energy Corporation	Dos Palos, CA	2 GWh	Oct 2021	Dec 2024	Solar
Clovis High School	Tesla Inc.	Clovis, CA	2 GWh	Mar 2018	Dec 2025	Solar
SunEdison Procter & Gamble Oxnard	SunE U6 Holdings LLC	Oxnard, CA	2 GWh	Sep 2009	Dec 2025	Solar
Beringer	SunStrong Management, LLC	Saint Helena, CA	2 GWh	Dec 2008	Dec 2025	Solar
Oltmans SCE at Champagne	California PV Energy LLC	Ontario, CA	2 GWh	Nov 2013	Dec 2025	Solar
Manteca Land PV	AES Distributed Energy	Manteca, CA	2 GWh	Nov 2017	Dec 2025	Solar
Clovis North High School	Tesla Inc.	Fresno, CA	2 GWh	Nov 2017	Dec 2025	Solar
Tahquitz High School	AES Distributed Energy	Hemet, CA	2 GWh	Aug 2012	Dec 2025	Solar
Catalina Express	Altus Power America Management, LLC	San Pedro, CA	2 GWh	Nov 2020	Dec 2025	Solar
Kern Del Oro	REC KDO, LLC	Bakersfield, CA	2 GWh	Nov 2024	Dec 2025	Solar
Kettering Solar 2	Tesla Inc.	Lancaster, CA	2 GWh	May 2014	Nov 2025	Solar
Medline Ind. Phase 2 Tracy	Powerflex	Tracy, CA	2 GWh	Mar 2018	Aug 2025	Solar
Foundation Cemex Madison	Foundation CA Fund V Manager, LLC	Madison, CA	2 GWh	Jul 2012	Dec 2025	Wind
SunE- E Philadelphia Ontario	SunEdison LLC	Ontario, CA	2 GWh	Feb 2016	Dec 2025	Solar
CSUF State College	MN8 Energy LLC	Fullerton, CA	2 GWh	Nov 2016	Dec 2025	Solar
Stage Gulch Solar	Stage Gulch Solar, LLC	Petaluma, CA	2 GWh	Mar 2018	Dec 2025	Solar
Bishop Ranch BR 1-X	Bollinger Canyon Road BR 1-X Solar Project 2020	San Ramon, CA	2 GWh	Feb 2022	Dec 2025	Solar
Still Water Power	Still Water Power LLC	Hanford, CA	1 GWh	Apr 2020	Dec 2025	Other Biomass Gas

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#25	Arizona Public Service Company	25.8 TWh	102
#55	Arlington Valley, LLC	3.2 TWh	1
#38	Balancing Authority of Northern California	13.9 TWh	91
#49	Imperial Irrigation District	6.2 TWh	66
#29	Los Angeles Department of Water and Power	19.3 TWh	132
#22	Nevada Power Company	38.6 TWh	143
#51	PUD No. 1 of Douglas County	4.4 TWh	5
#19	Salt River Project Agricultural Improvement and Power District	60.5 TWh	51
#57	Turlock Irrigation District	1.9 TWh	11
#39	Western Area Power Administration - Desert Southwest Region	10.6 TWh	36

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#3	Electric Reliability Council of Texas, Inc.	506.3 TWh	1,487
#5	Southwest Power Pool	314.5 TWh	876
#6	Southern Company Services, Inc. - Trans	259.3 TWh	423
#7	California Independent System Operator	168.7 TWh	2,170
#9	Tennessee Valley Authority	166.2 TWh	209
#10	Florida Power & Light Co.	153.0 TWh	188
#12	New York Independent System Operator	134.1 TWh	1,334
#13	Duke Energy Carolinas	113.4 TWh	578
#15	ISO New England	112.2 TWh	1,667
#16	Bonneville Power Administration	91.1 TWh	170