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
Kumeyaay Wind	Leeward Asset Management, LLC	Campo, CA	131 GWh	Nov 2005	Dec 2025	Wind
Golden Acorn Casino	Foundation HA Energy Generation, LLC	Campo, CA	4 GWh	Jun 2014	Jul 2026	Wind
Springville Hydroelectric	Calleguas Mun Water District	Camarillo, CA	659 MWh	Feb 1994	Dec 2025	Water
Glass House Camarillo Cultivation	Glass House Camarillo Cultivation	Camarillo, CA	64 GWh	Jul 2012	Dec 2025	Natural Gas
California State Univ at Channel Islands	SkyHigh 2 Solar	Camarillo, CA	8 GWh	Nov 2021	Dec 2025	Solar
Solar Gen 2 Solar Facility	Southern Power Co	Calipatria, CA	377 GWh	Oct 2014	Dec 2025	Solar
Whitewater Hydro Plant	Desert Water Agency	California, CA	5 GWh	Mar 1986	Dec 2025	Water
California Valley Solar Ranch	Clearway Energy Operating LLC	California Valley, CA	559 GWh	Aug 2012	Dec 2025	Solar
California City	MN8 Energy LLC	California City, CA	5 GWh	Jun 2018	Dec 2025	Solar
CalCity Solar 1	CalCity Solar 1, LLC	California City, CA	8 GWh	Oct 2019	Dec 2025	Solar
Wistaria Ranch Solar	RWE Clean Energy	Calexico, CA	268 GWh	Nov 2018	Jul 2026	Solar
Drew Solar LLC	Drew Solar LLC	Calexico, CA	306 GWh	Oct 2022	Jul 2026	Solar
Mount Signal Solar Farm II	MN8 Energy LLC	Calexico, CA	358 GWh	Dec 2019	Jul 2026	Solar
Mount Signal Solar Farm V	Imperial Valley Solar 3, LLC	Calexico, CA	633 GWh	Oct 2018	Jul 2026	Solar
Imperial Valley Solar, LLC	Imperial Valley Solar, LLC	Calexico, CA	442 GWh	Oct 2013	Dec 2025	Solar
Imperial Solar Energy Center South	CSOLAR IV South LLC	Calexico, CA	251 GWh	Oct 2013	Dec 2025	Solar
Centinela Solar Energy	Centinela Solar Energy LLC	Calexico, CA	449 GWh	Jun 2013	Dec 2025	Solar
Las Virgenes Municipal Water District	Tesla Inc.	Calabasas, CA	1 GWh	Jan 2014	Dec 2025	Solar
Foundation NWNA	Foundation CA Fund V Manager, LLC	Cabazon, CA	23 GWh	Nov 2012	Dec 2025	Wind
Cabazon Wind Partners	Shell Wind Energy Inc.	Cabazon, CA	108 GWh	Sep 2002	Dec 2025	Wind
Foundation RRM	Foundation CA Fund V Manager, LLC	Cabazon, CA	10 GWh	Nov 2012	Dec 2025	Wind
Mariposa Energy Project	Diamond Generating Corporation	Byron, CA	30 GWh	Sep 2012	Jul 2026	Natural Gas
Buena Vista Energy LLC	Leeward Asset Management, LLC	Byron, CA	96 GWh	Nov 2006	Dec 2025	Wind
Byron Highway Solar	RPCA Solar 3, LLC	Byron, CA	12 GWh	Oct 2022	Dec 2025	Solar
ABEC #2 dba West-Star Dairy	ABEC #2 LLC	Buttonwillow, CA	8 GWh	Jan 2018	Dec 2025	Other Biomass Gas
Hat Creek Bioenergy	Hat Creek Bioenergy, LLC	Burney, CA	12 GWh	May 2025	Dec 2025	Wood/Wood Waste Solids
Burney Forest Products	Burney Forest Products, A Joint Venture	Burney, CA	103 GWh	Sep 1989	Dec 2025	Wood/Wood Waste Solids : 69.9% Natural Gas : 30.1%
Cove Hydroelectric	Snow Mountain Hydro LLC	Burney, CA	17 GWh	Jan 1990	Dec 2025	Water
Burney Creek	Snow Mountain Hydro LLC	Burney, CA	9 GWh	Feb 1990	Dec 2025	Water
Hat Creek 2	Pacific Gas & Electric Co.	Burney, CA	46 GWh	Aug 1921	Dec 2025	Water
Lost Creek I	Snow Mountain Hydro LLC	Burney, CA	6 GWh	Nov 1989	Dec 2025	Water
Hatchet Ridge Wind Project	Pattern Operators LP	Burney, CA	271 GWh	Nov 2010	Dec 2025	Wind
Hat Creek 1	Pacific Gas & Electric Co.	Burney, CA	32 GWh	Jul 1921	Dec 2025	Water
Sierra Pacific Burney Facility	Sierra Pacific Industries	Burney, CA	95 GWh	Sep 1986	Dec 2025	Wood/Wood Waste Solids
Pit 1	Pacific Gas & Electric Co.	Burney, CA	256 GWh	Aug 1922	Dec 2025	Water
Pit 3	Pacific Gas & Electric Co.	Burney, CA	375 GWh	Jun 1925	Dec 2025	Water
Alticor Inc - Solar Project	MN8 Energy LLC	Buena Park, CA	1 GWh	Nov 2017	Dec 2025	Solar
Narrows 2	Yuba County Water Agency - (CA)	Browns Valley, CA	181 GWh	Nov 1969	Dec 2025	Water
Baker Creek Hydroelectric	Baker Station Associates, LP	Bridgeville, CA	3 GWh	Oct 2014	Dec 2025	Water
CSD 2 - Heritage High	CleanCapital Holdings	Brentwood, CA	2 GWh	Aug 2013	Dec 2025	Solar
Brea Expansion Plant	Brea Power II	Brea, CA	243 GWh	Oct 2012	Jul 2026	Landfill Gas
Blacksand Generating Facility	Bridge Energy LLC	Brea, CA	31 GWh	May 2000	Dec 2025	Natural Gas
Nacimiento Hydro Project	Monterey Cnty Water Res Agency	Bradley, CA	12 GWh	Jun 1987	Dec 2025	Water
Desert Green Solar Farm LLC	Invenergy Services LLC	Boulevard, CA	10 GWh	Oct 2014	Dec 2025	Solar
Tule Wind LLC	Avangrid Power LLC	Boulevard, CA	346 GWh	Nov 2017	Jul 2026	Wind
Copper Mountain Solar 2	RWE Clean Energy	Boulder City, NV	726 GWh	Jun 2012	Dec 2025	Solar
CM48	RWE Clean Energy	Boulder City, NV	90 GWh	May 2010	Dec 2025	Solar
CM10	RWE Clean Energy	Boulder City, NV	18 GWh	Nov 2008	Dec 2025	Solar
Desert Star Energy Center	Desert Star Energy Center SDG&E	Boulder City, NV	412 GWh	Apr 2000	Jul 2026	Natural Gas
Copper Mountain Solar 4, LLC	RWE Clean Energy	Boulder City, NV	248 GWh	Aug 2016	Dec 2025	Solar
Titan Solar 1 (CA)	Titan Solar 1, LLC	Borrego Springs, CA	157 GWh	Nov 2020	Jul 2026	Solar
Ocotillo Wells	Conductive Power	Borrego Springs, CA	101 GWh	Aug 2023	Jul 2026	Solar
Solar Borrego I	NRG Solar Borrego I	Borrego Springs, CA	61 GWh	Jan 2013	Dec 2025	Solar
US Borax	U S Borax Inc	Boron, CA	263 GWh	Jun 1984	Jul 2026	Natural Gas
Resurgence Solar	Resurgence Solar	Boron, CA	241 GWh	Jul 2023	Jul 2026	Solar
Aratina Solar Center 1A	64NB 8me LLC	Boron, CA	6 GWh	-	Jul 2026	Solar : 97.1% Electricity used for energy storage : 2.9%
Resurgence Solar II	Resurgence Solar II	Boron, CA	130 GWh	Jul 2023	Jul 2026	Solar
Aratina Solar Center 1B	91MC 8me LLC	Boron, CA	4 GWh	-	Jul 2026	Solar : 93.6% Electricity used for energy storage : 6.4%
Arlington Energy Center III	Arlington Energy Center III	Blythe, CA	330 GWh	Jul 2022	Jul 2026	Solar
Desert Quartzite	Desert Quartzite LLC	Blythe, CA	846 GWh	Nov 2024	Jul 2026	Solar
Blythe Mesa Solar II	Intersect USA, LLC	Blythe, CA	569 GWh	Nov 2022	Jul 2026	Solar
Arlington Energy Center II	Arlington Energy Center II	Blythe, CA	640 GWh	Feb 2022	Jul 2026	Solar
Blythe Solar IV, LLC	Blythe Solar IV, LLC	Blythe, CA	334 GWh	Oct 2020	Jul 2026	Solar
Blythe Solar III, LLC Hybrid	Blythe Solar III, LLC	Blythe, CA	343 GWh	Apr 2020	Jul 2026	Solar
Solar Blythe 2	NRG Solar Blythe II LLC	Blythe, CA	41 GWh	Mar 2017	Dec 2025	Solar
Blythe Solar 110, LLC	Blythe Solar 110, LLC	Blythe, CA	284 GWh	Feb 2016	Dec 2025	Solar
Blythe Solar II, LLC	Blythe Solar II, LLC	Blythe, CA	325 GWh	Jun 2016	Jul 2026	Solar
SunEdison Ironwood State Prison	SunE CPA CDC2 LLC	Blythe, CA	1 GWh	Apr 2008	Dec 2025	Solar
Solar Blythe LLC	NRG Solar Blythe	Blythe, CA	39 GWh	Nov 2009	Dec 2025	Solar
Chuckawalla Valley State Prison	SunE CPA CDC1 LLC	Blythe, CA	502 MWh	May 2006	Dec 2025	Solar
McCoy Solar Energy Project Hybrid	McCoy Solar, LLC	Blythe, CA	639 GWh	Jul 2015	Dec 2025	Solar
Genesis Solar Energy Project	Genesis Solar LLC	Blythe, CA	589 GWh	Oct 2013	Jul 2026	Solar
Chuckawalla Solar	Altus Power America Management, LLC	Blythe, CA	7 GWh	May 2012	Dec 2025	Solar
Ironwood Solar LLC	Altus Power America Management, LLC	Blythe, CA	7 GWh	Mar 2012	Dec 2025	Solar
Venable Solar 1	Madison Energy Investments LLC	Blythe, CA	4 GWh	Mar 2015	Dec 2025	Solar
Blythe Energy Inc	AltaGas Blythe Operations Inc	Blythe, CA	407 GWh	Nov 2003	Jul 2026	Natural Gas
Palo Verde College	Scale Sustainable I, LLC	Blythe, CA	2 GWh	Jul 2009	Dec 2025	Solar
Venable Solar 2	Madison Energy Investments LLC	Blythe, CA	3 GWh	Mar 2015	Sep 2025	Solar
Wonderful Orchards - West Valley	Wonderful Renewable Energy, LLC.	Blackwells Corner, CA	8 GWh	Sep 2020	Dec 2025	Solar
Bishop Creek 2	Southern California Edison Co	Bishop, CA	13 GWh	Oct 1908	Dec 2025	Water
Bishop Creek 6	Southern California Edison Co	Bishop, CA	9 GWh	Feb 1913	Dec 2025	Water
Bishop Creek 5	Southern California Edison Co	Bishop, CA	11 GWh	May 1919	Dec 2025	Water
Bishop Creek 4	Southern California Edison Co	Bishop, CA	36 GWh	Aug 1905	Dec 2025	Water
Bishop Creek 3	Southern California Edison Co	Bishop, CA	24 GWh	May 1913	Dec 2025	Water
Montezuma Wind II	NextEra Energy Montezuma Wind II, LLC	Birds Landing, CA	196 GWh	Dec 2011	Dec 2025	Wind
Shiloh IV Wind Project LLC	EDF Renewable Asset Holdings, Inc.	Birds Landing, CA	293 GWh	Nov 2012	Dec 2025	Wind
FPL Energy Montezuma Winds LLC	FPL Energy Montezuma Wind	Birds Landing, CA	96 GWh	Oct 2010	Dec 2025	Wind
High Winds LLC	FPLE High Winds, LLC	Birds Landing, CA	214 GWh	Jun 2003	Dec 2025	Wind
Shiloh Wind Project 2 LLC	EDF Renewable Asset Holdings, Inc.	Birds Landing, CA	369 GWh	Dec 2008	Dec 2025	Wind
EDF Renewable Windfarm V Inc	EDF Renewable Asset Holdings, Inc.	Birds Landing, CA	23 GWh	Dec 1989	Dec 2025	Wind
Shiloh III Wind Project LLC	EDF Renewable Asset Holdings, Inc.	Birds Landing, CA	282 GWh	Nov 2011	Dec 2025	Wind
Big Creek 1	Southern California Edison Co	Big Creek, CA	409 GWh	Oct 1913	Dec 2025	Water
Nelson Creek	Nelson Creek Power Inc	Big Bend, CA	3 GWh	Sep 1989	Dec 2025	Water
James B Black	Pacific Gas & Electric Co.	Big Bend, CA	504 GWh	Nov 1965	Jul 2026	Water
Pit 4	Pacific Gas & Electric Co.	Big Bend, CA	342 GWh	Jun 1955	Jul 2026	Water
Pit 5	Pacific Gas & Electric Co.	Big Bend, CA	211 GWh	Mar 1944	Jul 2026	Water
BBARWA	Distributed Solar Development, LLC	Big Bear, CA	3 GWh	Nov 2021	Dec 2025	Solar
Bear Valley Power Plant	Bear Valley Electric Service	Big Bear Lake, CA	2 GWh	Dec 2004	Dec 2025	Natural Gas
PE Berkeley	Berkeley Cogeneration Facility	Berkeley, CA	134 GWh	May 1987	Jun 2026	Natural Gas
Valero Refinery Cogeneration Unit 1	Valero Refining Co California	Benicia, CA	237 GWh	Sep 2002	Feb 2026	Natural Gas : 85.2% Other Gas : 14.8%

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