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	192.0 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 \| 45.4% Solar \| 23.1% Water \| 12% Wind \| 10.1% Nuclear \| 9.1%

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

Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Middle Fork	Placer County Water Agency	Foresthill, CA	476 GWh	Sep 1966	Sep 2024	Water
Oxbow (CA)	Placer County Water Agency	Foresthill, CA	14 GWh	Sep 1966	Dec 2023	Water
Pio Pico Energy Center	Pio Pico Energy Center LLC	San Diego, CA	100 GWh	Oct 2016	Dec 2023	Natural Gas
Pinyon Pine II	Pinyon Pines Wind II, LLC	Mojave, CA	189 GWh	Oct 2012	Dec 2023	Wind
Pinyon Pine I	Pinyon Pines Wind I, LLC	Mojave, CA	248 GWh	Oct 2012	Dec 2023	Wind
Phillips 66 Rodeo Refinery	Phillips 66 Company	Rodeo, CA	291 GWh	Apr 1987	Aug 2024	Other Gas : 72.8% Natural Gas : 27.2%
Phillips 66 Carbon Plant	Phillips 66 Company	Rodeo, CA	50 GWh	Nov 1983	Jun 2023	Waste Heat
Sheep Creek Community Solar Farm	Phelan Solar LLC	El Mirage, CA	2 GWh	Jul 2023	Dec 2023	Solar
Phelan Pinon Hills CSD Solar	Phelan Pinon Hills Community Services District	Adelanto, CA	3 GWh	Oct 2015	Nov 2023	Solar
Beringer	Perpetual Energy Systems	Saint Helena, CA	1 GWh	Dec 2008	Dec 2023	Solar
ASTI	Perpetual Energy Systems	Cloverdale, CA	1 GWh	Jan 2009	Dec 2023	Solar
Hatchet Ridge Wind Project	Pattern Operators LP	Burney, CA	248 GWh	Nov 2010	Dec 2023	Wind
Ocotillo Express LLC	Pattern Operators LP	Ocotillo, CA	533 GWh	Nov 2012	Sep 2024	Wind
One Market Plaza	Paramount Group Inc	San Francisco, CA	993 MWh	Nov 2003	Dec 2023	Natural Gas
Panoche Energy Center	Panoche Energy Center, LLC	Firebaugh, CA	1 TWh	May 2009	Sep 2024	Natural Gas
Dissigno Healdsburg FPV, LLC	Palmetto Power Management LLC	Healdsburg, CA	6 GWh	Nov 2020	Dec 2023	Solar
Municipal Cogen Plant	Palm Springs City of	Palm Springs, CA	7 GWh	Apr 1985	Sep 2024	Natural Gas
Volta 2	Pacific Gas & Electric Co.	Manton, CA	3 GWh	Oct 1981	Dec 2023	Water
Hat Creek 1	Pacific Gas & Electric Co.	Burney, CA	23 GWh	Jul 1921	Dec 2023	Water
Halsey	Pacific Gas & Electric Co.	Auburn, CA	7 GWh	Nov 1916	Dec 2022	Water
Haas	Pacific Gas & Electric Co.	Balch Camp, CA	541 GWh	Nov 1958	Sep 2024	Water
Guernsey Solar Station	Pacific Gas & Electric Co.	Hanford, CA	24 GWh	Jul 2013	Dec 2023	Solar
Hat Creek 2	Pacific Gas & Electric Co.	Burney, CA	7 GWh	Aug 1921	Dec 2023	Water
Alta Powerhouse	Pacific Gas & Electric Co.	Alta, CA	3 GWh	Oct 1902	Dec 2023	Water
De Sabla	Pacific Gas & Electric Co.	Magalia, CA	47 GWh	Jan 1963	Dec 2023	Water
Butt Valley	Pacific Gas & Electric Co.	Belden, CA	147 GWh	Nov 1958	Dec 2023	Water
Caribou 1	Pacific Gas & Electric Co.	Belden, CA	198 GWh	May 1921	Dec 2023	Water
Caribou 2	Pacific Gas & Electric Co.	Belden, CA	338 GWh	Oct 1958	Sep 2024	Water
Coleman PH	Pacific Gas & Electric Co.	Anderson, CA	34 GWh	May 1979	Dec 2023	Water
Bucks Creek	Pacific Gas & Electric Co.	Storrie, CA	85 GWh	Feb 1928	Sep 2023	Water
Belden	Pacific Gas & Electric Co.	Belden, CA	333 GWh	Aug 1969	Sep 2024	Water
Cow Creek	Pacific Gas & Electric Co.	Millville, CA	6 GWh	Dec 1906	Mar 2023	Water
Cresta	Pacific Gas & Electric Co.	Storrie, CA	122 GWh	Oct 1949	Dec 2023	Water
Electra	Pacific Gas & Electric Co.	Jackson, CA	338 GWh	May 1948	Sep 2024	Water
Deer Creek PH	Pacific Gas & Electric Co.	Nevada City, CA	12 GWh	Apr 1908	Nov 2023	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
Balch 2	Pacific Gas & Electric Co.	Balch Camp, CA	490 GWh	Oct 1958	Dec 2023	Water
Dutch Flat	Pacific Gas & Electric Co.	Alta, CA	112 GWh	Feb 1943	Dec 2023	Water
Gates Solar Station	Pacific Gas & Electric Co.	Huron, CA	38 GWh	May 2013	Dec 2023	Solar
Balch 1	Pacific Gas & Electric Co.	Balch Camp, CA	184 GWh	Jan 1927	Dec 2023	Water
Kerckhoff 2	Pacific Gas & Electric Co.	Auberry, CA	390 GWh	Apr 1983	Sep 2024	Water
Spring Gap	Pacific Gas & Electric Co.	Long Barn, CA	31 GWh	Aug 1921	Dec 2023	Water
Stanislaus	Pacific Gas & Electric Co.	Vallecito, CA	334 GWh	Feb 1963	Dec 2023	Water
Tiger Creek	Pacific Gas & Electric Co.	Pioneer, CA	246 GWh	May 1931	Dec 2023	Water
Volta 1	Pacific Gas & Electric Co.	Manton, CA	3 GWh	Mar 1980	Sep 2023	Water
West Point PH	Pacific Gas & Electric Co.	Pioneer, CA	82 GWh	Oct 1948	Dec 2023	Water
Wise	Pacific Gas & Electric Co.	Auburn, CA	65 GWh	Feb 1917	Dec 2023	Water
A G Wishon	Pacific Gas & Electric Co.	North Fork, CA	16 GWh	Aug 1910	Dec 2023	Water
Vaca Dixon Solar Station	Pacific Gas & Electric Co.	Vacaville, CA	4 GWh	Nov 2009	Dec 2023	Solar
West Gates Solar Station	Pacific Gas & Electric Co.	Huron, CA	20 GWh	Apr 2013	Dec 2023	Solar
Newcastle	Pacific Gas & Electric Co.	Auburn, CA	17 GWh	Nov 1986	Dec 2023	Water
James B Black	Pacific Gas & Electric Co.	Big Bend, CA	377 GWh	Nov 1965	Sep 2024	Water
Toadtown	Pacific Gas & Electric Co.	Magalia, CA	3 GWh	Mar 1986	Dec 2023	Water
Diablo Canyon	Pacific Gas & Electric Co.	Avila Beach, CA	17 TWh	Apr 1985	Sep 2024	Nuclear
Huron Solar Station	Pacific Gas & Electric Co.	Huron, CA	31 GWh	May 2012	Dec 2023	Solar
Cantua Solar Station	Pacific Gas & Electric Co.	TBD, CA	34 GWh	May 2012	Dec 2023	Solar
Giffen	Pacific Gas & Electric Co.	TBD, CA	13 GWh	May 2012	Dec 2023	Solar
Westside Solar Station	Pacific Gas & Electric Co.	Five Points, CA	19 GWh	Jul 2011	Dec 2023	Solar
Five Points Solar Station	Pacific Gas & Electric Co.	Five Points, CA	19 GWh	Aug 2011	Dec 2023	Solar
Stroud Solar Station	Pacific Gas & Electric Co.	Helm, CA	24 GWh	Aug 2011	Dec 2023	Solar
Humboldt Bay	Pacific Gas & Electric Co.	Eureka, CA	363 GWh	Aug 2010	Sep 2024	Natural Gas : 99.5% Distillate Fuel Oil : 0.5%
Spaulding 2	Pacific Gas & Electric Co.	Emigrant Gap, CA	7 GWh	Jun 1928	Mar 2023	Water
Spaulding 3	Pacific Gas & Electric Co.	Emigrant Gap, CA	18 GWh	Jan 1929	Dec 2023	Water
Kings River PH	Pacific Gas & Electric Co.	Balch Camp, CA	207 GWh	Feb 1962	Dec 2023	Water
Phoenix	Pacific Gas & Electric Co.	Sonora, CA	7 GWh	Jan 1940	Dec 2023	Water
Pit 1	Pacific Gas & Electric Co.	Burney, CA	195 GWh	Aug 1922	Dec 2023	Water
Pit 3	Pacific Gas & Electric Co.	Burney, CA	345 GWh	Jun 1925	Dec 2023	Water
Pit 4	Pacific Gas & Electric Co.	Big Bend, CA	311 GWh	Jun 1955	Sep 2024	Water
Pit 5	Pacific Gas & Electric Co.	Big Bend, CA	368 GWh	Mar 1944	Sep 2024	Water
Pit 6	Pacific Gas & Electric Co.	Montgomery Creek, CA	278 GWh	Jul 1965	Oct 2023	Water
Pit 7	Pacific Gas & Electric Co.	Montgomery Creek, CA	263 GWh	Aug 1965	Sep 2024	Water
Poe	Pacific Gas & Electric Co.	Storrie, CA	590 GWh	Sep 1958	Sep 2024	Water
Rock Creek	Pacific Gas & Electric Co.	Storrie, CA	559 GWh	Feb 1950	Sep 2024	Water
San Joaquin 2	Pacific Gas & Electric Co.	North Fork, CA	2 GWh	Aug 1917	Feb 2023	Water
Salt Springs	Pacific Gas & Electric Co.	Pioneer, CA	201 GWh	May 1931	Dec 2023	Water
South	Pacific Gas & Electric Co.	Manton, CA	18 GWh	Nov 1979	Dec 2023	Water
Gateway Generating Station	Pacific Gas & Electric Co.	Antioch, CA	3 TWh	Dec 2008	Sep 2024	Natural Gas
Colusa Generating Station	Pacific Gas & Electric Co.	Maxwell, CA	3 TWh	Nov 2010	Sep 2024	Natural Gas
Spaulding 1	Pacific Gas & Electric Co.	Emigrant Gap, CA	37 GWh	Apr 1928	Dec 2023	Water
Oxnard Wastewater Treatment Plant	Oxnard City of	Oxnard, CA	5 GWh	Jul 1981	Sep 2024	Other Biomass Gas : 88.8% Natural Gas : 11.2%
Otay Mesa Generating Project	Otay Mesa Energy Center LLC	San Diego, CA	3 TWh	Sep 2009	Sep 2024	Natural Gas
Oroville Cogeneration LP	Oroville Cogeneration LP	Oroville, CA	235 MWh	Dec 1989	Dec 2023	Natural Gas
Ormond Beach	Ormond Beach Power, LLC	Oxnard, CA	69 GWh	Jul 1971	Sep 2024	Natural Gas
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
Mammoth G3	Ormat Nevada Inc	Mammoth Lakes, CA	104 GWh	Nov 1990	Dec 2023	Geothermal
Dixie Valley	Ormat Nevada Inc	Fallon, NV	406 GWh	May 1988	Sep 2024	Geothermal
Orion Solar II	Orion Solar II, LLC	Arvin, CA	18 GWh	May 2014	Dec 2023	Solar
Orion Solar I	Orion Solar I LLC	Arvin, CA	29 GWh	Mar 2014	Dec 2023	Solar
OES Biogas Power	Organic Energy Solutions, Inc.	San Bernardino, CA	348 MWh	-	Dec 2023	Other Biomass Gas
Orange Grove Peaking Facility	Orange Grove Energy LP	Pala, CA	18 GWh	May 2010	Dec 2023	Natural Gas
Kings River Syphon	Orange Cove Irrigation District	Sanger, CA	1 GWh	Aug 1990	May 2023	Water
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%
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%
SeaWorld Aquatica	Onyx Asset Services Group	Chula Vista, CA	2 GWh	Apr 2018	Dec 2023	Solar
RE Kansas Solar, LLC	Onward Energy	Lemoore, CA	39 GWh	Nov 2014	Dec 2023	Solar
Cottonwood Solar, LLC Cottonwood Carport	Onward Energy	Novato, CA	1 GWh	Apr 2016	Nov 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

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#28	Arizona Public Service Company	22.0 TWh	75
#53	Arlington Valley, LLC	3.6 TWh	1
#36	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	16.0 TWh	120
#22	Nevada Power Company	37.8 TWh	136
#56	New Harquahala Generating Company, LLC	2.9 TWh	1
#18	Salt River Project Agricultural Improvement and Power District	58.9 TWh	45
#57	Turlock Irrigation District	2.3 TWh	11
#41	Western Area Power Administration - Desert Southwest Region	8.5 TWh	30

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#3	Electric Reliability Council of Texas, Inc.	462.2 TWh	1,139
#5	Southwest Power Pool	290.4 TWh	762
#6	Southern Company Services, Inc. - Trans	248.1 TWh	393
#7	California Independent System Operator	192.0 TWh	1,943
#9	Tennessee Valley Authority	157.6 TWh	170
#10	Florida Power & Light Co.	147.6 TWh	159
#12	New York Independent System Operator	129.8 TWh	1,100
#13	Duke Energy Carolinas	110.9 TWh	556
#15	ISO New England	103.1 TWh	1,487
#16	Bonneville Power Administration	80.0 TWh	158