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
Kilroy Solar	Nautilus Solar Solutions	San Diego, CA	7 GWh	Dec 2017	Dec 2023	Solar
Nelson Creek	Nelson Creek Power Inc	Big Bend, CA	3 GWh	Sep 1989	Dec 2023	Water
Chicago Park	Nevada Irrigation District	Colfax, CA	135 GWh	Oct 1965	Dec 2023	Water
Dutch Flat 2	Nevada Irrigation District	Dutch Flat, CA	47 GWh	Oct 1965	Dec 2023	Water
Scott Flat	Nevada Irrigation District	Nevada City, CA	5 GWh	Jan 1985	Oct 2023	Water
Bowman	Nevada Irrigation District	Nevada City, CA	15 GWh	Aug 1986	Dec 2023	Water
Combie South	Nevada Irrigation District	Auburn, CA	7 GWh	Mar 1984	Dec 2023	Water
Rollins	Nevada Irrigation District	Colfax, CA	73 GWh	Jul 1980	Dec 2023	Water
New-Indy Ontario Mill	New-Indy Ontario LLC	Ontario, CA	246 GWh	May 1985	Aug 2024	Natural Gas
Oxnard Paper Mill	New-Indy, Oxnard LLC	Oxnard, CA	193 GWh	Feb 1986	Aug 2024	Natural Gas
Newberry Solar 1 LLC	Newberry Solar 1 LLC	Newberry Springs, CA	1 GWh	Nov 2013	Dec 2023	Solar
Desert Sunlight 250, LLC	NextEra Energy Desert Sunlight 250, LLC	Desert Center, CA	544 GWh	Oct 2013	Dec 2023	Solar
Desert Sunlight 300, LLC	NextEra Energy Desert Sunlight 300, LLC	Desert Center, CA	659 GWh	Oct 2013	Dec 2023	Solar
Montezuma Wind II	NextEra Energy Montezuma Wind II, LLC	Birds Landing, CA	197 GWh	Dec 2011	Dec 2023	Wind
Coram Energy LLC	Nextera Energy Resources	Tehachapi, CA	36 GWh	Dec 2004	Dec 2023	Wind
Coram Energy LLC (ECT)	Nextera Energy Resources	Tehachapi, CA	32 GWh	Apr 2005	Dec 2023	Wind
Windstar 1	Nextera Energy Resources	Tehachapi, CA	192 GWh	Jan 2012	Dec 2023	Wind
Coram Tehachapi	Nextera Energy Resources	Tehachapi, CA	4 GWh	Aug 1992	Dec 2023	Wind
Alta Wind VIII	Nextera Energy Resources	Mojave, CA	186 GWh	Dec 2011	Dec 2023	Wind
North Rosamond Solar LLC	North Rosamond Solar, LLC	Rosamond, CA	387 GWh	May 2019	Aug 2024	Solar
North Sky River Energy LLC	North Sky River Energy LLC	Weldon, CA	387 GWh	Nov 2012	Dec 2023	Wind
Alameda	Northern California Power Agny	Alameda, CA	4 GWh	Apr 1986	Dec 2023	Natural Gas
Spicer Meadow Project	Northern California Power Agny	Murphys, CA	30 GWh	Oct 1989	Dec 2023	Water
Collierville Powerhouse	Northern California Power Agny	Murphys, CA	537 GWh	Oct 1989	Aug 2024	Water
Lodi	Northern California Power Agny	Lodi, CA	546 MWh	Jan 1986	Dec 2023	Natural Gas
Combustion Turbine Project No 2	Northern California Power Agny	Lodi, CA	7 GWh	Mar 1996	Dec 2023	Natural Gas
Lodi Energy Center	Northern California Power Agny	Lodi, CA	827 GWh	Oct 2012	Aug 2024	Natural Gas
Geothermal 2	Northern California Power Agny	Middletown, CA	280 GWh	Nov 1985	Aug 2024	Geothermal
Geothermal 1	Northern California Power Agny	Middletown, CA	254 GWh	Dec 1982	Aug 2024	Geothermal
Nove Power Plant	Nove Investments I LLC	Richmond, CA	35 MWh	Nov 1985	Dec 2022	Landfill Gas
Carlsbad Energy Center	NRG California Peaker Operations LLC	Carlsbad, CA	250 GWh	Nov 2018	Aug 2024	Natural Gas
Ivanpah 3	NRG Energy Services	Nipton, CA	270 GWh	Nov 2013	Aug 2024	Solar : 96.9% Natural Gas : 3.1%
Ivanpah 1	NRG Energy Services	Nipton, CA	230 GWh	Nov 2013	Aug 2024	Solar : 95.2% Natural Gas : 4.8%
Ivanpah 2	NRG Energy Services	Nipton, CA	268 GWh	Nov 2013	Aug 2024	Solar : 96.4% Natural Gas : 3.6%
Solar Blythe LLC	NRG Solar Blythe	Blythe, CA	41 GWh	Nov 2009	Dec 2023	Solar
Solar Blythe 2	NRG Solar Blythe II LLC	Blythe, CA	41 GWh	Mar 2017	Dec 2023	Solar
Solar Borrego I	NRG Solar Borrego I	Borrego Springs, CA	65 GWh	Jan 2013	Dec 2023	Solar
Tulloch	Oakdale&South San Joaquin Irrigation D.	Jamestown, CA	125 GWh	May 1958	Dec 2023	Water
Beardsley	Oakdale&South San Joaquin Irrigation D.	None, CA	83 GWh	Apr 1957	Dec 2023	Water
Donnells	Oakdale&South San Joaquin Irrigation D.	None, CA	348 GWh	May 1957	Dec 2023	Water
Oakley Solar Project	Oakley Solar Project LLC	Oakley, CA	2 GWh	May 2013	Dec 2023	Solar
OK Produce Fresno Carport	OK Produce	Fresno, CA	3 GWh	Dec 2018	Dec 2023	Solar
Rio Bravo Hydro Project	Olcese Water District	Bakersfield, CA	31 GWh	Apr 1989	Dec 2023	Water
Agnews Power Plant	OLS Energy-Agnews Inc.	San Jose, CA	36 GWh	Oct 1990	Dec 2023	Natural Gas
OLS Energy Chino	OLS Energy-Chino	Chino, CA	11 GWh	Nov 1987	Dec 2023	Natural Gas
Olsen	Olsen Power Partners	Whitmore, CA	18 GWh	Dec 1989	Dec 2023	Water
One Ten Partners PV	One Ten Partners, LLC	Palmdale, CA	5 GWh	Aug 2017	Dec 2023	Solar
RE Adams East, LLC	Onward Energy	Fresno, CA	30 GWh	Nov 2014	Dec 2023	Solar
Catalina Solar 2, LLC	Onward Energy	Rosamond, CA	45 GWh	Jul 2015	Dec 2023	Solar
CID Solar, LLC	Onward Energy	Corcoran, CA	39 GWh	Nov 2014	Dec 2023	Solar
RE Camelot LLC	Onward Energy	Mojave, CA	118 GWh	Nov 2014	Dec 2023	Solar
Cottonwood Solar, LLC (City of Corcoran)	Onward Energy	Corcoran, CA	21 GWh	Apr 2015	Dec 2023	Solar
Cottonwood Solar, LLC (Goose Lake)	Onward Energy	Lost Hills, CA	25 GWh	Apr 2015	Dec 2023	Solar
RE Kansas Solar, LLC	Onward Energy	Lemoore, CA	39 GWh	Nov 2014	Dec 2023	Solar
RE Old River One, LLC	Onward Energy	Bakersfield, CA	35 GWh	Nov 2014	Dec 2023	Solar
Cottonwood Solar, LLC Cottonwood Carport	Onward Energy	Novato, CA	1 GWh	Apr 2016	Nov 2023	Solar
RE Columbia Two, LLC	Onward Energy	Mojave, CA	34 GWh	Nov 2014	Dec 2023	Solar
Maricopa West Solar PV, LLC	Onward Energy	Taft, CA	41 GWh	Nov 2015	Dec 2023	Solar
Alamo Solar	Onward Energy	Oro Grande, CA	44 GWh	Apr 2015	Dec 2023	Solar
TA-Acacia, LLC	Onward Energy	Lancaster, CA	53 GWh	Oct 2014	Dec 2023	Solar
RE Kent South, LLC	Onward Energy	Lemoore, CA	41 GWh	Nov 2014	Dec 2023	Solar
SeaWorld Aquatica	Onyx Asset Services Group	Chula Vista, CA	2 GWh	Apr 2018	Dec 2023	Solar
Plant No 1 Orange County	Orange County Sanitation Dist	Fountain Valley, CA	39 GWh	May 1993	Dec 2023	Other Biomass Gas : 80.7% Natural Gas : 19.3%
Plant No 2 Orange County	Orange County Sanitation Dist	Huntington Beach, CA	59 GWh	May 1993	Dec 2023	Other Biomass Gas : 77.5% Natural Gas : 22.5%
Kings River Syphon	Orange Cove Irrigation District	Sanger, CA	1 GWh	Aug 1990	May 2023	Water
Orange Grove Peaking Facility	Orange Grove Energy LP	Pala, CA	18 GWh	May 2010	Dec 2023	Natural Gas
OES Biogas Power	Organic Energy Solutions, Inc.	San Bernardino, CA	348 MWh	-	Dec 2023	Other Biomass Gas
Orion Solar I	Orion Solar I LLC	Arvin, CA	29 GWh	Mar 2014	Dec 2023	Solar
Orion Solar II	Orion Solar II, LLC	Arvin, CA	18 GWh	May 2014	Dec 2023	Solar
Mammoth G3	Ormat Nevada Inc	Mammoth Lakes, CA	104 GWh	Nov 1990	Dec 2023	Geothermal
Mammoth G1	Ormat Nevada Inc	Mammoth lakes, CA	58 GWh	Nov 1984	Dec 2023	Geothermal
Mammoth G2	Ormat Nevada Inc	Mammoth Lakes, CA	62 GWh	Nov 1990	Dec 2023	Geothermal
Dixie Valley	Ormat Nevada Inc	Fallon, NV	416 GWh	May 1988	Aug 2024	Geothermal
Ormond Beach	Ormond Beach Power, LLC	Oxnard, CA	45 GWh	Jul 1971	Aug 2024	Natural Gas
Oroville Cogeneration LP	Oroville Cogeneration LP	Oroville, CA	235 MWh	Dec 1989	Dec 2023	Natural Gas
Otay Mesa Generating Project	Otay Mesa Energy Center LLC	San Diego, CA	2 TWh	Sep 2009	Aug 2024	Natural Gas
Oxnard Wastewater Treatment Plant	Oxnard City of	Oxnard, CA	6 GWh	Jul 1981	Aug 2024	Other Biomass Gas : 87.7% Natural Gas : 12.3%
Cresta	Pacific Gas & Electric Co.	Storrie, CA	122 GWh	Oct 1949	Dec 2023	Water
De Sabla	Pacific Gas & Electric Co.	Magalia, CA	47 GWh	Jan 1963	Dec 2023	Water
Deer Creek PH	Pacific Gas & Electric Co.	Nevada City, CA	12 GWh	Apr 1908	Nov 2023	Water
Electra	Pacific Gas & Electric Co.	Jackson, CA	354 GWh	May 1948	Aug 2024	Water
Drum 1	Pacific Gas & Electric Co.	Alta, CA	88 GWh	Oct 1913	Dec 2023	Water
Drum 2	Pacific Gas & Electric Co.	Alta, CA	271 GWh	Nov 1965	Dec 2023	Water
Dutch Flat	Pacific Gas & Electric Co.	Alta, CA	112 GWh	Feb 1943	Dec 2023	Water
Pit 3	Pacific Gas & Electric Co.	Burney, CA	345 GWh	Jun 1925	Dec 2023	Water
Butt Valley	Pacific Gas & Electric Co.	Belden, CA	147 GWh	Nov 1958	Dec 2023	Water
Volta 2	Pacific Gas & Electric Co.	Manton, CA	3 GWh	Oct 1981	Dec 2023	Water
Alta Powerhouse	Pacific Gas & Electric Co.	Alta, CA	3 GWh	Oct 1902	Dec 2023	Water
Balch 1	Pacific Gas & Electric Co.	Balch Camp, CA	184 GWh	Jan 1927	Dec 2023	Water
Balch 2	Pacific Gas & Electric Co.	Balch Camp, CA	490 GWh	Oct 1958	Dec 2023	Water
Belden	Pacific Gas & Electric Co.	Belden, CA	273 GWh	Aug 1969	Aug 2024	Water
Newcastle	Pacific Gas & Electric Co.	Auburn, CA	17 GWh	Nov 1986	Dec 2023	Water
Kerckhoff 2	Pacific Gas & Electric Co.	Auberry, CA	357 GWh	Apr 1983	Aug 2024	Water
Toadtown	Pacific Gas & Electric Co.	Magalia, CA	3 GWh	Mar 1986	Dec 2023	Water
Bucks Creek	Pacific Gas & Electric Co.	Storrie, CA	85 GWh	Feb 1928	Sep 2023	Water
Diablo Canyon	Pacific Gas & Electric Co.	Avila Beach, CA	17 TWh	Apr 1985	Aug 2024	Nuclear
Cow Creek	Pacific Gas & Electric Co.	Millville, CA	6 GWh	Dec 1906	Mar 2023	Water
Vaca Dixon Solar Station	Pacific Gas & Electric Co.	Vacaville, CA	4 GWh	Nov 2009	Dec 2023	Solar
Caribou 1	Pacific Gas & Electric Co.	Belden, CA	198 GWh	May 1921	Dec 2023	Water
Stroud Solar Station	Pacific Gas & Electric Co.	Helm, CA	24 GWh	Aug 2011	Dec 2023	Solar

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