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
Topaz Solar Farm	Topaz Solar Farms LLC	Santa Margarita, CA	967 GWh	Mar 2013	May 2026	Solar
Gridley Main Two	Altus Power America Management, LLC	Gridley, CA	4 GWh	Mar 2013	Dec 2025	Solar
TA-High Desert LLC	TA-High Desert LLC	Lancaster, CA	58 GWh	Feb 2013	Dec 2025	Solar
Atwell Island	SPS Atwell Island LLC	Alpaugh, CA	34 GWh	Feb 2013	Dec 2025	Solar
Gridley Main	Altus Power America Management, LLC	Gridley, CA	1 GWh	Feb 2013	Dec 2025	Solar
Ameresco Vasco Road	Ameresco Vasco Road, LLC	Livermore, CA	33 GWh	Feb 2013	Dec 2025	Landfill Gas
Laguna Water Reclamation Facility	City of Santa Rosa - (CA)	Santa Rosa, CA	9 GWh	Feb 2013	Dec 2025	Other Biomass Gas : 83.6% Natural Gas : 16.4%
Life Technologies - Pleasanton	Bloom Energy	Pleasanton, CA	8 GWh	Feb 2013	Dec 2025	Natural Gas
AT&T - Redwood City	Bloom Energy	Redwood City, CA	3 GWh	Feb 2013	Dec 2025	Natural Gas
Alpine Solar	Alpine BESS LLC	Lancaster, CA	114 GWh	Jan 2013	Dec 2025	Solar
Solar Borrego I	NRG Solar Borrego I	Borrego Springs, CA	61 GWh	Jan 2013	Dec 2025	Solar
Ameresco Butte County	Ameresco Butte County LLC	Paradise, CA	15 GWh	Jan 2013	Dec 2025	Landfill Gas
Delano Energy Center	Wellhead Services, Inc	Delano, CA	2 GWh	Dec 2012	Dec 2025	Natural Gas
Manzana Wind LLC	Avangrid Power LLC	Rosamond, CA	519 GWh	Nov 2012	Dec 2025	Wind
Ocotillo Express LLC	Pattern Operators LP	Ocotillo, CA	372 GWh	Nov 2012	May 2026	Wind
Catalina Solar LLC	EDF Renewable Asset Holdings, Inc.	Rosamond, CA	265 GWh	Nov 2012	Nov 2025	Solar
Shiloh IV Wind Project LLC	EDF Renewable Asset Holdings, Inc.	Birds Landing, CA	293 GWh	Nov 2012	Dec 2025	Wind
Alpaugh North	RWE Clean Energy	Alpaugh, CA	21 GWh	Nov 2012	Dec 2025	Solar
Alpaugh 50	RWE Clean Energy	Alpaugh, CA	57 GWh	Nov 2012	Dec 2025	Solar
Axium Modesto Solar	Axium US Solar Holdings LLC	Modesto, CA	53 GWh	Nov 2012	Dec 2025	Solar
Foundation Cemex River Plant	Foundation CA Fund VI Manager LLC	Victorville, CA	4 GWh	Nov 2012	Dec 2025	Wind
Foundation Cemex BMQ	Foundation CA Fund VI Manager LLC	Apple Valley, CA	4 GWh	Nov 2012	Dec 2025	Wind
Foundation Superior Farms	Foundation CA Fund VI Manager LLC	Dixon, CA	875 MWh	Nov 2012	May 2026	Wind
Foundation RRM	Foundation CA Fund V Manager, LLC	Cabazon, CA	10 GWh	Nov 2012	Dec 2025	Wind
Foundation NWNA	Foundation CA Fund V Manager, LLC	Cabazon, CA	23 GWh	Nov 2012	Dec 2025	Wind
La Joya Del Sol	CVI CleanCapital Solar 1 LLC	Fresno, CA	806 MWh	Nov 2012	Dec 2025	Solar
North Sky River Energy LLC	North Sky River Energy LLC	Weldon, CA	365 GWh	Nov 2012	Dec 2025	Wind
Wagner Wind LLC	Greenbacker Renewable Energy Corporation	Palm Springs, CA	10 GWh	Nov 2012	Dec 2025	Wind
Juniper Networks Sunnyvale	Bloom Energy	Sunnyvale, CA	4 GWh	Nov 2012	Dec 2024	Natural Gas
McGrath Peaker	Southern California Edison Co	Oxnard, CA	3 GWh	Oct 2012	Dec 2025	Natural Gas
Solar Photovoltaic Project #42	Southern California Edison Co	Tulare, CA	6 GWh	Oct 2012	Dec 2025	Solar
Pinyon Pine I	Pinyon Pines Wind I, LLC	Mojave, CA	283 GWh	Oct 2012	Dec 2025	Wind
Pinyon Pine II	Pinyon Pines Wind II, LLC	Mojave, CA	204 GWh	Oct 2012	Dec 2025	Wind
Lodi Energy Center	Northern California Power Agny	Lodi, CA	403 GWh	Oct 2012	May 2026	Natural Gas
Brea Expansion Plant	Brea Power II	Brea, CA	246 GWh	Oct 2012	May 2026	Landfill Gas
Nickel 1 Solar Facility	Altus Power America Management, LLC	Lost Hills, CA	2 GWh	Oct 2012	Dec 2025	Solar
Mariposa Energy Project	Diamond Generating Corporation	Byron, CA	24 GWh	Sep 2012	May 2026	Natural Gas
North Palm Springs 4A	Altus Power America Management, LLC	Palm Springs, CA	8 GWh	Sep 2012	Dec 2025	Solar
Kaiser Ontario	Bloom Energy 2009 PPA	Ontario, CA	8 GWh	Sep 2012	Dec 2025	Natural Gas
Kyocera International Inc.(San Diego)	Kyocera International, Inc	San Diego, CA	14 GWh	Aug 2012	Dec 2025	Natural Gas
California Valley Solar Ranch	Clearway Energy Operating LLC	California Valley, CA	559 GWh	Aug 2012	Dec 2025	Solar
Naval Air Weapons Station China Lake	MN8 Energy LLC	Ridgecrest, CA	24 GWh	Aug 2012	Dec 2025	Solar
Foundation Wal-Mart Red Bluff	Foundation CA Fund VI Manager LLC	Red Bluff, CA	1 GWh	Aug 2012	May 2026	Wind
Tahquitz High School	AES Distributed Energy	Hemet, CA	2 GWh	Aug 2012	Dec 2025	Solar
West Valley High School Solar	AES Distributed Energy	Hemet, CA	1 GWh	Aug 2012	Dec 2025	Solar
North Kern State Prison Phase II	SunE P11L Holdings, LLC	Delano, CA	7 GWh	Aug 2012	Dec 2025	Solar
Pacific Wind LLC	EDF Renewable Asset Holdings, Inc.	Rosamond, CA	295 GWh	Jul 2012	Dec 2025	Wind
San Antonio West Solar Rooftop	SS San Antonio West LLC	Chino, CA	2 GWh	Jul 2012	Dec 2025	Solar
Foundation Cemex Madison	Foundation CA Fund V Manager, LLC	Madison, CA	2 GWh	Jul 2012	Dec 2025	Wind
Life Technologies Carlsbad	Bloom Energy	Carlsbad, CA	9 GWh	Jul 2012	Dec 2025	Natural Gas
Glass House Camarillo Cultivation	Glass House Camarillo Cultivation	Camarillo, CA	64 GWh	Jul 2012	Dec 2025	Natural Gas
Copper Mountain Solar 2	RWE Clean Energy	Boulder City, NV	726 GWh	Jun 2012	Dec 2025	Solar
McKittrick Cogen	Chevron USA Inc	McKittrick, CA	61 GWh	May 2012	Dec 2025	Natural Gas
Giffen	Pacific Gas & Electric Co.	TBD, CA	12 GWh	May 2012	Dec 2025	Solar
Cantua Solar Station	Pacific Gas & Electric Co.	TBD, CA	23 GWh	May 2012	Dec 2025	Solar
Huron Solar Station	Pacific Gas & Electric Co.	Huron, CA	28 GWh	May 2012	Dec 2025	Solar
SEPV 2	CVI CleanCapital Solar 1 LLC	Twentynine Palms, CA	3 GWh	May 2012	Dec 2025	Solar
Kaiser Downey	Bloom Energy 2009 PPA	Downey, CA	8 GWh	May 2012	Dec 2025	Natural Gas
Chuckawalla Solar	Altus Power America Management, LLC	Blythe, CA	7 GWh	May 2012	Dec 2025	Solar
Agua Caliente Solar Project	Agua Caliente Solar	Dateland, AZ	525 GWh	Apr 2012	May 2026	Solar
Mustang Hills LLC	Mustang Hills, LLC (Longroad)	Mojave, CA	267 GWh	Apr 2012	Dec 2025	Wind
L-8 Solar Project	L-8 Solar Project LLC	Palmdale, CA	2 GWh	Apr 2012	Dec 2025	Solar
SEPV 1	CVI CleanCapital Solar 1 LLC	Palmdale, CA	3 GWh	Apr 2012	Dec 2025	Solar
North Palm Springs 1A	Altus Power America Management, LLC	Palm Springs, CA	5 GWh	Mar 2012	Dec 2025	Solar
Industry MetroLink PV 1	City of Industry - (CA)	Industry, CA	1 GWh	Mar 2012	Dec 2025	Solar
Ironwood Solar LLC	Altus Power America Management, LLC	Blythe, CA	7 GWh	Mar 2012	Dec 2025	Solar
Golden Springs Building D	Golden Springs Development Company LLC	Santa Fe Springs, CA	2 GWh	Feb 2012	Dec 2025	Solar
Heliocentric	Heliocentric LLC	Palmdale, CA	2 GWh	Feb 2012	Dec 2025	Solar
Brookfield Tehachapi 1	Coram California Development, L.P.	Mojave, CA	164 GWh	Feb 2012	Dec 2025	Wind
Mountain View IV	AES Distributed Energy	North Palm Springs, CA	173 GWh	Jan 2012	Dec 2025	Wind
Windstar 1	Nextera Energy Resources	Tehachapi, CA	255 GWh	Jan 2012	Dec 2025	Wind
Golden Springs Building C-1	Golden Springs Development Company LLC	Santa Fe Springs, CA	1 GWh	Jan 2012	Dec 2025	Solar
Xilinx San Jose	Bloom Energy	San Jose, CA	8 GWh	Jan 2012	Dec 2025	Natural Gas
EAFB - North Base	CleanCapital Holdings	Edwards Air Force Bas, CA	3 GWh	Jan 2012	Dec 2025	Solar
EAFB - South Base	CleanCapital Holdings	Edwards Air Force Bas, CA	2 GWh	Jan 2012	Dec 2025	Solar
Montezuma Wind II	NextEra Energy Montezuma Wind II, LLC	Birds Landing, CA	196 GWh	Dec 2011	Dec 2025	Wind
Alta Wind VIII	Nextera Energy Resources	Mojave, CA	219 GWh	Dec 2011	Dec 2025	Wind
San Gorgonio Windplant WPP1993	FPL Energy Operating Services, Inc.	North Palm Springs, CA	192 GWh	Nov 2011	Dec 2025	Wind
Shiloh III Wind Project LLC	EDF Renewable Asset Holdings, Inc.	Birds Landing, CA	282 GWh	Nov 2011	Dec 2025	Wind
Power Generation Station (PGS) 2	East Bay Municipal Util Dist - (CA)	Oakland, CA	20 GWh	Nov 2011	Dec 2025	Other Biomass Gas
Vasco Winds	Vasco Winds, LLC	Livermore, CA	234 GWh	Nov 2011	Oct 2025	Wind
Foundation IE	Foundation HA Energy Generation, LLC	Rancho Cucamonga, CA	404 MWh	Nov 2011	Dec 2025	Wind
ISH Solar Hospital SDMC	Kaiser Permanente	San Diego, CA	1 GWh	Nov 2011	Dec 2025	Solar
Lancaster Baptist Church	Tesla Inc.	Lancaster, CA	1 GWh	Nov 2011	Dec 2025	Solar
Mesquite Solar 1	RWE Clean Energy	Tonopah, AZ	392 GWh	Oct 2011	Dec 2025	Solar
Foundation AB	Foundation HA Energy Generation, LLC	Fairfield, CA	3 GWh	Oct 2011	Dec 2025	Wind
Franklin Templeton San Mateo	Bloom Energy	San Mateo, CA	9 GWh	Oct 2011	Dec 2025	Natural Gas
Dinuba Wastewater Treatment Plant	AES Distributed Energy	Dinuba, CA	1 GWh	Oct 2011	Dec 2025	Solar
Mira Loma	Costco Wholesale	Mira Loma, CA	2 GWh	Oct 2011	Dec 2025	Solar
Hollister Wastewater Facility	SunStrong Management, LLC	Hollister, CA	2 GWh	Oct 2011	Dec 2025	Solar
Madera Community Hospital	CleanCapital Holdings	Madera, CA	2 GWh	Sep 2011	Dec 2025	Solar
Stroud Solar Station	Pacific Gas & Electric Co.	Helm, CA	15 GWh	Aug 2011	Dec 2025	Solar
Five Points Solar Station	Pacific Gas & Electric Co.	Five Points, CA	13 GWh	Aug 2011	Dec 2025	Solar
ISH Solar Hospital Downey	Kaiser Permanente	Downey, CA	1 GWh	Aug 2011	Dec 2025	Solar
SC 1 Data Center, Phase 2	Xeres Ventures LLC	Santa Clara, CA	392 MWh	Aug 2011	May 2026	Distillate Fuel Oil
Canyon Power Plant	City of Anaheim - (CA)	Anaheim, CA	19 GWh	Jul 2011	May 2026	Natural Gas
Avenal Park	Avenal Solar Holdings LLC	Avenal, CA	10 GWh	Jul 2011	Dec 2025	Solar
Sun City Project LLC	Avenal Solar Holdings LLC	Avenal, CA	33 GWh	Jul 2011	Dec 2025	Solar
Sand Drag LLC	Avenal Solar Holdings LLC	Avenal, CA	32 GWh	Jul 2011	Dec 2025	Solar
Westside Solar Station	Pacific Gas & Electric Co.	Five Points, CA	12 GWh	Jul 2011	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