California Independent System Operator

Balancing Authority Summary Information

California Independent System Operator is ranked #7 out of 65 balancing authorities in terms of total annual electricity generation.

Balancing Authority	California Independent System Operator
States	Arizona California Nevada
Last Update	Nov 2024
Annual Generation	191.5 TWh
Power Plants	1,943
Utilities	893
Ranked #7 out of 65 in terms of net annual generation
Ranked #7 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 45.6% Solar \| 23.1% Water \| 12.1% Wind \| 10% Nuclear \| 9%

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

Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Frontier HS Solar Project	MN8 Energy LLC	Bakersfield, CA	3 GWh	Nov 2018	Dec 2023	Solar
Frontier Solar LLC	Frontier Solar, LLC	Newman, CA	40 GWh	May 2016	Dec 2023	Solar
FRV SI Transport Solar LP	FRV SI Transport Solar, L.P. (Sacremento)	Sacramento, CA	1 GWh	Jul 2010	Dec 2023	Solar
FTF-PackingShed	Family Tree Farms	Reedley, CA	1 GWh	May 2013	Dec 2023	Solar
G2 Energy Hay Rd	G2 Energy LLC	Vacaville, CA	11 GWh	May 2013	Dec 2023	Landfill Gas
G2 Energy Ostrom Road LLC	G2 Energy LLC	Wheatland, CA	25 GWh	Jan 2009	Dec 2023	Landfill Gas
Gap Pacific Distribution Center	MN8 Energy LLC	Fresno, CA	6 GWh	Sep 2008	Dec 2023	Solar
Garnet Solar Generation Station I LLC	Garnet Solar Generation Station I LLC	Palm Springs, CA	6 GWh	Nov 2014	Dec 2023	Solar
Garnet Wind Energy Center	Terra-Gen Operating Co-Wind	North Palm Springs, CA	15 GWh	May 2009	Dec 2023	Wind
Gas Utilization Facility	City of San Diego	San Diego, CA	33 GWh	May 1985	Aug 2024	Other Biomass Gas
Gaskell West 1 Solar Facility	Southern Power Co	Lancaster, CA	26 GWh	Feb 2018	Dec 2023	Solar
Gates Solar Station	Pacific Gas & Electric Co.	Huron, CA	38 GWh	May 2013	Dec 2023	Solar
Gateway Generating Station	Pacific Gas & Electric Co.	Antioch, CA	3 TWh	Dec 2008	Aug 2024	Natural Gas
GEN005 Antibody Fuel Cell	2016 ESA Project Company, LLC	Oceanside, CA	16 GWh	Mar 2019	Dec 2023	Natural Gas
Genentech-Oceanside Hybrid	Tesla Inc.	Oceanside, CA	5 GWh	Mar 2016	Dec 2023	Solar
Genentech Vacaville Meter #1	Tesla Inc.	Vacaville, CA	12 GWh	Apr 2017	Dec 2023	Solar
Genesis Solar Energy Project	Genesis Solar LLC	Blythe, CA	609 GWh	Oct 2013	Aug 2024	Solar
Geothermal 1	Northern California Power Agny	Middletown, CA	254 GWh	Dec 1982	Aug 2024	Geothermal
Geothermal 2	Northern California Power Agny	Middletown, CA	280 GWh	Nov 1985	Aug 2024	Geothermal
Geysers Unit 5-20	Geysers Power Co LLC	Middletown, CA	4 TWh	Mar 1971	Aug 2024	Geothermal
Gianera	City of Santa Clara - (CA)	Santa Clara, CA	10 GWh	May 1986	Dec 2023	Natural Gas
Giffen	Pacific Gas & Electric Co.	TBD, CA	13 GWh	May 2012	Dec 2023	Solar
Giffen Solar Park	Giffen Solar Park, LLC	Cantua Creek, CA	22 GWh	May 2017	Dec 2023	Solar
Gilead Foster City Solar Project	Gilead Sciences Inc. Foster City	Foster City, CA	1 GWh	Mar 2021	Dec 2023	Solar
Gilead Oceanside Solar Project	Gilead Sciences Inc.	Oceanside, CA	2 GWh	Nov 2021	Dec 2023	Solar
Gilead Sciences La Verne Rooftop Solar	Gilead Sciences, Inc. - La Verne	La Verne, CA	3 GWh	Jun 2021	Dec 2022	Solar
Gilroy Peaking Energy Center	Calpine Gilroy Cogen LP	Gilroy, CA	27 GWh	Oct 2001	Nov 2023	Natural Gas
Gilroy Power Plant	Calpine Gilroy Cogen LP	Gilroy, CA	75 GWh	Sep 1987	Nov 2023	Natural Gas
Glass House Camarillo Cultivation	Glass House Camarillo Cultivation	Camarillo, CA	45 GWh	Jul 2012	Dec 2023	Natural Gas
Glenarm	City of Pasadena - (CA)	Pasadena, CA	41 GWh	Dec 1975	Dec 2023	Natural Gas
Goal Line LP	Goal Line LP	Escondido, CA	10 GWh	Jul 1994	Aug 2024	Natural Gas
Golden Acorn Casino	Foundation HA Energy Generation, LLC	Campo, CA	4 GWh	Jun 2014	Aug 2024	Wind
Golden Field Solar III, LLC	Golden Field Solar III, LLC	Rosamond, CA	509 GWh	Nov 2020	Aug 2024	Solar
Golden Fields Solar I, LLC	MN8 Energy LLC	Rosamond, CA	140 GWh	Nov 2016	Aug 2024	Solar
Golden Hills North Wind Energy Center	Golden Hills Interconnection Wind, LLC	Livermore, CA	127 GWh	Oct 2017	Aug 2024	Wind
Golden Hills Wind	Golden Hills Wind, LLC	Livermore, CA	248 GWh	Nov 2015	Dec 2023	Wind
Golden Springs Building C-1	Golden Springs Development Company LLC	Santa Fe Springs, CA	2 GWh	Jan 2012	Dec 2023	Solar
Golden Springs Building D	Golden Springs Development Company LLC	Santa Fe Springs, CA	2 GWh	Feb 2012	Dec 2023	Solar
Google Moffett Park Solar Project	Google, Inc.	Sunnyvale, CA	3 GWh	Feb 2021	Dec 2023	Solar
Goose Haven Energy Center	Goose Haven Energy Center	Suisun, CA	16 GWh	Dec 2002	Dec 2023	Natural Gas
Gosselin Hydro Plant	Humboldt Bay Mun Water Dist	Ruth, CA	6 GWh	May 1983	Apr 2023	Water
Graniterock Quarry	CalCom Energy	Aromas, CA	9 GWh	Aug 2022	Dec 2023	Solar
Grapeland Hybrid	Southern California Edison Co	Rancho Cucamonga, CA	4 GWh	Aug 2007	Dec 2023	Natural Gas
Grassland 1&2 Solar Project	Yolo County of	Davis, CA	2 GWh	Jun 2013	Dec 2023	Solar
Grassland 3&4 Solar Project	Yolo County of	Davis, CA	2 GWh	Jun 2013	Nov 2023	Solar
Great Valley Solar Portfolio Holdings, LLC	Consolidated Edison Development Inc.	Cantua Creek, CA	555 GWh	Nov 2017	Aug 2024	Solar
Green Beanworks B PV	AES Distributed Energy	Lancaster, CA	6 GWh	Nov 2018	Dec 2023	Solar
Green Beanworks C PV	AES Distributed Energy	Palmdale, CA	7 GWh	Jul 2018	Dec 2023	Solar
Green Beanworks D PV	AES Distributed Energy	Palmdale, CA	6 GWh	Jul 2018	Dec 2023	Solar
Green Power I	FPL Energy Green Power	North Palm Springs, CA	318 MWh	Jun 1975	Dec 2022	Wind
Greenleaf 1	Calpine Greenleaf Holding, Inc.	Yuba City, CA	3 GWh	Jan 1989	Dec 2023	Natural Gas
Greenleaf 2 Power Plant	Greenleaf Energy LLC	Yuba City, CA	35 GWh	Sep 1989	Aug 2024	Natural Gas
Gridley Main	Altus Power America Management, LLC	Gridley, CA	2 GWh	Feb 2013	Dec 2023	Solar
Gridley Main Two	Altus Power America Management, LLC	Gridley, CA	4 GWh	Mar 2013	Dec 2023	Solar
Grizzly	City of Santa Clara - (CA)	N/A, CA	2 GWh	Oct 1993	Dec 2023	Water
Grossmont Hospital	Sharp Grossmont Hospital	La Mesa, CA	27 GWh	Jul 1983	Dec 2023	Natural Gas
Grossmont HS Solar Project	MN8 Energy LLC	El Cajon, CA	2 GWh	Nov 2018	Dec 2023	Solar
Guadalupe Solar Farm	County of Santa Clara (CA)	San Jose, CA	2 GWh	Aug 2018	Dec 2023	Solar
Guernsey Solar Station	Pacific Gas & Electric Co.	Hanford, CA	24 GWh	Jul 2013	Dec 2023	Solar
H. Gonzales	City of Vernon	Vernon, CA	298 MWh	Dec 1986	Dec 2023	Natural Gas
Haas	Pacific Gas & Electric Co.	Balch Camp, CA	544 GWh	Nov 1958	Aug 2024	Water
Halsey	Pacific Gas & Electric Co.	Auburn, CA	7 GWh	Nov 1916	Dec 2022	Water
Hanford 1 and 2	Arevon Energy, Inc.	Hanford, CA	5 GWh	Jul 2014	Dec 2023	Solar
Hanford Energy Park Peaker	MRP San Joaquin Energy LLC.	Hanford, CA	4 GWh	Aug 2001	Aug 2024	Natural Gas
Harbor Cogen	Harbor Cogeneration Co.	Wilmington, CA	26 GWh	Nov 1988	Dec 2023	Natural Gas
Hat Creek 1	Pacific Gas & Electric Co.	Burney, CA	23 GWh	Jul 1921	Dec 2023	Water
Hat Creek 2	Pacific Gas & Electric Co.	Burney, CA	7 GWh	Aug 1921	Dec 2023	Water
Hatchet Creek Project	Mega Renewables	Montgomery Creek, CA	21 GWh	Nov 1986	Jul 2023	Water
Hatchet Ridge Wind Project	Pattern Operators LP	Burney, CA	248 GWh	Nov 2010	Dec 2023	Wind
Haypress	EIF Haypress LLC	Sierra City, CA	22 GWh	Nov 1988	Aug 2023	Water
Hayworth Solar	AES Distributed Energy	Edison, CA	58 GWh	Nov 2015	Dec 2023	Solar
Heliocentric	Heliocentric LLC	Palmdale, CA	3 GWh	Feb 2012	Dec 2023	Solar
Hellyer Solar Farm	County of Santa Clara (CA)	San Jose, CA	4 GWh	Jul 2017	Dec 2023	Solar
Helzel & Schwarzhoff 86	Wind Stream Operations LLC	Tehachapi, CA	3 GWh	Nov 1986	Dec 2023	Wind
Henrietta Peaker	MRP San Joaquin Energy LLC.	Lemoore, CA	5 GWh	May 2002	Aug 2024	Natural Gas
Henrietta Solar Project	Southern Power Co	Lemoore, CA	234 GWh	Jul 2016	Dec 2023	Solar
Henry Miller RD	Henry Miller Reclamation District	Dos Palos, CA	3 GWh	Sep 2018	Dec 2023	Solar
Hesperia	SunEdison LLC	Hesperia, CA	3 GWh	Jul 2014	Dec 2023	Solar
High Desert Power Plant	MRP Generation Holdings, LLC	Victorville, CA	5 TWh	Mar 2003	Aug 2024	Natural Gas
High Sierra Cogeneration Plant	Plumas Sierra Rural Electric Coop	Susanville, CA	36 GWh	Jan 2010	Dec 2023	Natural Gas
High Sierra Limited	WCAC Operating Company	Bakersfield, CA	23 GWh	Feb 1989	Dec 2023	Natural Gas
High Winds LLC	FPLE High Winds, LLC	Birds Landing, CA	238 GWh	Jun 2003	Dec 2023	Wind
HL Power	HL Power Company	Wendel, CA	205 GWh	Jun 1989	Dec 2023	Wood/Wood Waste Solids : 99.7%
HL Solar	HL Solar LLC	Wendel, CA	11 GWh	May 2019	Dec 2023	Solar
Hoag Hospital Cogen Plant	Hoag Memorial Presbyterian Hospital	Newport Beach, CA	5 GWh	Jun 2006	Feb 2024	Natural Gas
Hollister Solar LLC	Ecos Energy LLC	Hollister, CA	4 GWh	Nov 2014	Dec 2023	Solar
Honda Torrance	Bloom Energy	Torrance, CA	762 MWh	Nov 2012	Dec 2023	Natural Gas
Horn	CD US Solar MT 2 LLC	Lancaster, CA	3 GWh	Sep 2013	Dec 2023	Solar
Hudson - High Desert Hybrid	MN8 Energy LLC	Victorville, CA	288 GWh	Nov 2021	Aug 2024	Solar
Humboldt Bay	Pacific Gas & Electric Co.	Eureka, CA	368 GWh	Aug 2010	Aug 2024	Natural Gas : 99.5% Distillate Fuel Oil : 0.5%
Humboldt Sawmill Company	Mendocino Forest Products	Scotia, CA	123 GWh	Dec 1937	Aug 2024	Wood/Wood Waste Solids : 99.7%
Huron Solar Station	Pacific Gas & Electric Co.	Huron, CA	31 GWh	May 2012	Dec 2023	Solar
IGS KSBD	Greenbacker Renewable Energy Corporation	Highland, CA	9 GWh	Feb 2022	Dec 2023	Solar
IKEA Tejon 345	IKEA Property Inc	Lebec, CA	2 GWh	Mar 2011	Dec 2023	Solar
Illumina Way SD	Bloom Energy	San Diego, CA	25 GWh	Aug 2019	Dec 2023	Natural Gas
Imperial Solar Energy Center South	CSOLAR IV South LLC	Calexico, CA	277 GWh	Oct 2013	Dec 2023	Solar
Imperial Solar Energy Center West	CSOLAR IV West LLC	Seeley, CA	388 GWh	Mar 2016	Dec 2023	Solar
Imperial Valley Solar, LLC	Imperial Valley Solar, LLC	Calexico, CA	346 GWh	Oct 2013	Dec 2023	Solar
Improvement Dst No. 4	Kern County Water Agency	Bakersfield, CA	8 MWh	Dec 2008	Dec 2022	Solar
Indian Valley Dam Hydro Project	Yolo County Flood Control WCD	Clearlake Oaks, CA	6 GWh	Sep 1983	Sep 2023	Water

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#28	Arizona Public Service Company	21.8 TWh	75
#52	Arlington Valley, LLC	3.6 TWh	1
#35	Balancing Authority of Northern California	15.2 TWh	83
#48	Imperial Irrigation District	5.7 TWh	65
#33	Los Angeles Department of Water and Power	15.9 TWh	120
#22	Nevada Power Company	37.6 TWh	136
#56	New Harquahala Generating Company, LLC	2.9 TWh	1
#18	Salt River Project Agricultural Improvement and Power District	59.0 TWh	45
#57	Turlock Irrigation District	2.3 TWh	11
#41	Western Area Power Administration - Desert Southwest Region	8.6 TWh	30

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#3	Electric Reliability Council of Texas, Inc.	461.0 TWh	1,139
#5	Southwest Power Pool	290.4 TWh	762
#6	Southern Company Services, Inc. - Trans	247.9 TWh	393
#7	California Independent System Operator	191.5 TWh	1,943
#9	Tennessee Valley Authority	157.5 TWh	170
#10	Florida Power & Light Co.	147.7 TWh	159
#12	New York Independent System Operator	130.0 TWh	1,100
#13	Duke Energy Carolinas	110.9 TWh	556
#15	ISO New England	102.8 TWh	1,487
#16	Bonneville Power Administration	80.0 TWh	158