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%

Map of California Independent System Operator

Register Now for Comprehensive Access

Subscribe now to access all power plant data, utility information, FERC EQR data, and more for California Independent System Operator.

Create Your Account Today

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

Download Generation

Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
AES Huntington Beach Energy Project	AES Huntington Beach Energy, LLC	Huntington Beach, CA	2 TWh	Jan 2020	Jul 2026	Natural Gas
Plant No 2 Orange County	Orange County Sanitation Dist - (CA)	Huntington Beach, CA	47 GWh	May 1993	Dec 2025	Other Biomass Gas : 77.2% Natural Gas : 22.8%
AES Huntington Beach LLC	AES Huntington Beach LLC	Huntington Beach, CA	5 GWh	May 1958	Jun 2026	Natural Gas
Hollister Solar LLC	Ecos Energy LLC	Hollister, CA	4 GWh	Nov 2014	Dec 2025	Solar
Enerparc CA1 LLC	CleanCapital Holdings	Hollister, CA	3 GWh	May 2014	Dec 2025	Solar
Hollister Wastewater Facility	SunStrong Management, LLC	Hollister, CA	2 GWh	Oct 2011	Dec 2025	Solar
Lockhart Solar PV II	Terra-Gen Operating Co-Solar	Hinkley, CA	203 GWh	Jun 2023	Jul 2026	Solar
Lockhart Solar PV IV, LLC	Terra-Gen Operating Co-Solar	Hinkley, CA	42 GWh	-	Jul 2026	Solar
Desert Breeze Solar, LLC	Terra-Gen Operating Co-Solar	Hinkley, CA	107 GWh	-	Jul 2026	Solar
Lockhart Solar PV, LLC	Terra-Gen Operating Co-Solar	Hinkley, CA	236 GWh	Nov 1989	Jul 2026	Solar
Mojave Solar Project	Mojave Solar LLC	Hinkley, CA	588 GWh	Nov 2014	Jul 2026	Solar
San Manuel Central Plant Cogens	Yuhaaviatam of San Manuel Nation	Highland, CA	18 GWh	May 2021	Dec 2025	Natural Gas
IGS KSBD	Altus Power America Management, LLC	Highland, CA	9 GWh	Feb 2022	Dec 2025	Solar
Hesperia	SunEdison LLC	Hesperia, CA	3 GWh	Jul 2014	Dec 2025	Solar
Mojave Siphon	California Dept. of Water Resources	Hesperia, CA	46 GWh	Jul 1996	Dec 2025	Water
PSREC/SIAD Solar	Plumas Sierra Rural Electric Coop	Herlong, CA	6 GWh	Aug 2018	Dec 2025	Solar
Bio-Rad	Vista Solar, Inc.	Hercules, CA	3 GWh	Sep 2021	Dec 2025	Solar
AP North Lake I, LP	AP North Lake I, LP	Hemet, CA	46 GWh	Jul 2015	Dec 2025	Solar
West Valley High School Solar	AES Distributed Energy	Hemet, CA	1 GWh	Aug 2012	Dec 2025	Solar
Tahquitz High School	AES Distributed Energy	Hemet, CA	2 GWh	Aug 2012	Dec 2025	Solar
Stroud Solar Station	Pacific Gas & Electric Co.	Helm, CA	15 GWh	Aug 2011	Dec 2025	Solar
Van der Hoek Solar Array/ Dairy	Maas Energy Works	Helm, CA	667 MWh	Jul 2017	Dec 2025	Solar
Dissigno Healdsburg FPV, LLC	Palmetto Power Management LLC	Healdsburg, CA	6 GWh	Nov 2020	Dec 2025	Solar
AT&T - Hayward	Bloom Energy	Hayward, CA	8 GWh	Oct 2016	Dec 2025	Natural Gas
City of Hayward WWTP	City of Hayward (CA)	Hayward, CA	11 GWh	Oct 2010	Dec 2025	Other Biomass Gas : 72.3% Solar : 23.6% Natural Gas : 4.1%
Russell City Energy Center	Russell City Energy Company LLC	Hayward, CA	2 TWh	Jul 2013	Jul 2026	Natural Gas
AT&T - Hawthorne	Bloom Energy	Hawthorne, CA	8 GWh	Sep 2016	Dec 2025	Natural Gas
Bidwell Ditch Project	Mega Renewables	Hat Creek, CA	12 GWh	Feb 1987	Dec 2025	Water
Sun Streams 2	Sun Streams 2, LLC	Hassayampa, AZ	303 GWh	May 2021	Jul 2026	Solar
Kaiser - Harbor City	Bloom Energy	Harbor City, CA	17 GWh	Nov 2019	Dec 2025	Natural Gas
Lone Oak	Bravo REC Management LLC	Hanford, CA	6 GWh	Feb 2023	Dec 2025	Solar
Danell Bros Inc	Renewable Solar, Inc	Hanford, CA	6 GWh	Aug 2021	Dec 2025	Solar
Verwey-Hanford Dairy Digester #3	Hanford Renewable Energy LLC	Hanford, CA	6 GWh	Jun 2019	Dec 2025	Other Biomass Gas
Verwey-Hanford Dairy Digester #2	Hanford Renewable Energy LLC	Hanford, CA	6 GWh	Jun 2019	Dec 2025	Other Biomass Gas
Lakeside Pipeline	Maas Energy Works	Hanford, CA	8 GWh	Jun 2023	Dec 2025	Solar
Still Water Power	Still Water Power LLC	Hanford, CA	1 GWh	Apr 2020	Dec 2025	Other Biomass Gas
Canal Energy S23, LLC	Canal Energy S23, LLC	Hanford, CA	10 GWh	Nov 2021	Dec 2025	Solar
Dover Dairy	Renewable Solar, Inc	Hanford, CA	2 GWh	Apr 2022	Dec 2025	Solar
Dixie Creek Dairy Solar	Bravo REC Management LLC	Hanford, CA	6 GWh	Jun 2024	Dec 2025	Solar
Verwey-Hanford Dairy Digester #1	AlsoEnergy	Hanford, CA	3 GWh	Sep 2016	Dec 2025	Other Biomass Gas
River Ranch Dairy	Renewable Solar, Inc	Hanford, CA	995 MWh	May 2024	Dec 2025	Solar
Hanford Energy Park Peaker	MRP San Joaquin Energy LLC.	Hanford, CA	2 GWh	Aug 2001	Jul 2026	Natural Gas
Hanford 1 and 2	Arevon Energy, Inc.	Hanford, CA	5 GWh	Jul 2014	Dec 2025	Solar
Guernsey Solar Station	Pacific Gas & Electric Co.	Hanford, CA	22 GWh	Jul 2013	Dec 2025	Solar
Ameresco Ox Mountain	AMERESCO Ox Mountain Energy LLC	Half Moon Bay, CA	83 GWh	Nov 2008	Jul 2026	Landfill Gas
Quinto Solar PV Project	Arevon Energy, Inc.	Gustine, CA	243 GWh	Oct 2015	Dec 2025	Solar
Dion R Holm	City & County of San Francisco - (CA)	Groveland, CA	552 GWh	Jul 1960	Jul 2026	Water
R C Kirkwood	City & County of San Francisco - (CA)	Groveland, CA	478 GWh	Jan 1967	Jul 2026	Water
Gridley Main Two	Altus Power America Management, LLC	Gridley, CA	4 GWh	Mar 2013	Dec 2025	Solar
Gridley Main	Altus Power America Management, LLC	Gridley, CA	1 GWh	Feb 2013	Dec 2025	Solar
Foundation Scheid Vineyards	Foundation CA Fund VIII Manager, LLC	Greenfield, CA	4 GWh	Aug 2017	Dec 2025	Wind
Narrows PH	Yuba County Water Agency - (CA)	Grass Valley, CA	73 GWh	Nov 1942	Dec 2025	Water
W E Warne	California Dept. of Water Resources	Gorman, CA	211 GWh	Oct 1982	Dec 2025	Water
Ameresco Johnson Canyon	Ameresco Johnson Canyon LLC	Gonzales, CA	10 GWh	Apr 2013	Dec 2025	Landfill Gas
Taylor Farms	Foundation HA Energy Generation, LLC	Gonzales, CA	4 GWh	Oct 2014	Dec 2025	Wind
Foundation Mann Packing	Foundation CA Fund IX Manager, LLC	Gonzales, CA	6 GWh	Mar 2019	Dec 2025	Wind
Santa Barbara ReSource Center	County of Santa Barbara - (CA)	Goleta, CA	9 GWh	May 2021	Dec 2025	Other Biomass Gas
Ellwood	Ellwood Power, LLC	Goleta, CA	305 MWh	Jul 1974	Dec 2025	Natural Gas
Gilroy Peaking Energy Center	Calpine Gilroy Cogen LP	Gilroy, CA	31 GWh	Oct 2001	Dec 2025	Natural Gas
Gilroy Power Plant	Calpine Gilroy Cogen LP	Gilroy, CA	21 GWh	Sep 1987	Dec 2025	Natural Gas
AT&T - Gardena	Bloom Energy	Gardena, CA	8 GWh	May 2013	Dec 2025	Natural Gas
CSUF Nutwood Solar	MN8 Energy LLC	Fullerton, CA	3 GWh	Nov 2016	Dec 2025	Solar
CSUF State College	MN8 Energy LLC	Fullerton, CA	2 GWh	Nov 2016	Dec 2025	Solar
CSUF Trigeneration	California State University at Fullerton	Fullerton, CA	34 GWh	Sep 2010	Jul 2026	Natural Gas : 80.2% Solar : 19.8%
Friant Hydro Facility	Friant Power Authority	Friant, CA	73 GWh	Mar 1985	Dec 2025	Water
Saint Agnes Medical Center	Saint Agnes Medical Center	Fresno, CA	32 GWh	Apr 2001	Jul 2026	Natural Gas
La Joya Del Sol	CVI CleanCapital Solar 1 LLC	Fresno, CA	806 MWh	Nov 2012	Dec 2025	Solar
CSU Fresno Solar Project	MMA Fresno Power LP	Fresno, CA	1 GWh	Nov 2007	Dec 2025	Solar
Gap Pacific Distribution Center	MN8 Energy LLC	Fresno, CA	5 GWh	Sep 2008	Dec 2025	Solar
Malaga Power LLC	CalPeak Power, LLC	Fresno, CA	6 GWh	Aug 2005	Jul 2026	Natural Gas
RE Adams East, LLC	Onward Energy	Fresno, CA	41 GWh	Nov 2014	Dec 2025	Solar
POM Juice Solar	Wonderful Renewable Energy, LLC.	Fresno, CA	4 GWh	Jun 2021	Dec 2025	Solar
Clovis North High School	Tesla Inc.	Fresno, CA	2 GWh	Nov 2017	Dec 2025	Solar
Fresno Community Solar	Agilitas Energy, Inc.	Fresno, CA	17 GWh	May 2024	Dec 2025	Solar
CA - Fresno County - Juvenile Hall	Forefront Power, LLC	Fresno, CA	7 GWh	Feb 2022	Dec 2025	Solar
Fresno Bullard High School Hybrid	Forefront Power, LLC	Fresno, CA	2 GWh	Feb 2020	Dec 2025	Solar
Fresno Hoover High School Hybrid	Forefront Power, LLC	Fresno, CA	2 GWh	Feb 2020	Dec 2025	Solar
Fresno Sunnyside High School Hybrid	Forefront Power, LLC	Fresno, CA	2 GWh	Nov 2020	Dec 2025	Solar
JD Foods - JD Foods	Barrier Solar Inc	Fresno, CA	2 GWh	Sep 2020	Dec 2025	Solar
CA - Fresno, City of - SE Surface WTP	Forefront Power, LLC	Fresno, CA	7 GWh	Dec 2024	Dec 2025	Solar
OK Produce Fresno Carport	OK Produce	Fresno, CA	3 GWh	Dec 2018	Dec 2025	Solar
SCCCD - Fresno Community College	Forefront Power, LLC	Fresno, CA	4 GWh	Sep 2018	Nov 2025	Solar
Scarlet Solar (CA)	EDP Renewables North America LLC	Fresno, CA	480 GWh	May 2024	Jul 2026	Solar
Fresno-Clovis RWRF	Forefront Power, LLC	Fresno, CA	28 GWh	Mar 2025	Dec 2025	Solar
SCCCD - Clovis Community College	Forefront Power, LLC	Fresno, CA	2 GWh	Nov 2018	Nov 2025	Solar
Fremont CA AutoFactory	Tesla Inc.	Fremont, CA	524 MWh	Feb 2022	Dec 2025	Solar
Life Technologies - Fremont	Bloom Energy	Fremont, CA	10 GWh	Nov 2020	Dec 2025	Natural Gas
Fremont - Kato Rd	Tesla Inc.	Fremont, CA	2 GWh	Nov 2016	Dec 2025	Solar
Delta Electronics Fremont	Delta Electronics (Americas) Ltd	Fremont, CA	701 MWh	Mar 2016	Dec 2025	Solar
National Raisin	National Raisin	Fowler, CA	5 GWh	May 2015	Dec 2025	Solar
Plant No 1 Orange County	Orange County Sanitation Dist - (CA)	Fountain Valley, CA	41 GWh	May 1993	Dec 2025	Other Biomass Gas : 81.6% Natural Gas : 18.4%
Gilead Foster City Solar Project	Gilead Sciences Inc. Foster City	Foster City, CA	2 GWh	Mar 2021	Dec 2025	Solar
Ralston	Placer County Water Agency - (CA)	Foresthill, CA	303 GWh	Sep 1966	Dec 2025	Water
Oxbow (CA)	Placer County Water Agency - (CA)	Foresthill, CA	23 GWh	Sep 1966	Dec 2025	Water
Middle Fork	Placer County Water Agency - (CA)	Foresthill, CA	459 GWh	Sep 1966	Jul 2026	Water
French Meadows	Placer County Water Agency - (CA)	Foresthill, CA	43 GWh	Sep 1966	Dec 2025	Water
Sly Creek	South Feather Water and Power Agency	Forbestown, CA	27 GWh	Jun 1983	Dec 2025	Water
Forbestown	South Feather Water and Power Agency	Forbestown, CA	115 GWh	Sep 1963	Dec 2025	Water
Woodleaf	South Feather Water and Power Agency	Forbestown, CA	167 GWh	Oct 1963	Dec 2025	Water
IOS II-LAX9	Madison Energy Holdings LLC	Fontana, CA	4 GWh	Jan 2020	Dec 2025	Solar

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