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
Colton Solar One, LLC	Colton Solar One, LLC	San Bernardino, CA	4 GWh	May 2015	Dec 2025	Solar
National Raisin	National Raisin	Fowler, CA	5 GWh	May 2015	Dec 2025	Solar
Cottonwood Solar, LLC (Goose Lake)	Onward Energy	Lost Hills, CA	30 GWh	Apr 2015	Dec 2025	Solar
Cottonwood Solar, LLC (City of Corcoran)	Onward Energy	Corcoran, CA	21 GWh	Apr 2015	Dec 2025	Solar
Shafter Solar LLC	Shafter Solar LLC	Bakersfield, CA	41 GWh	Apr 2015	Dec 2025	Solar
Algonquin SKIC20 Solar LLC	Algonquin Power Co	Taft, CA	41 GWh	Apr 2015	Dec 2025	Solar
Corcoran Solar 2	RWE Clean Energy	Corcoran, CA	47 GWh	Apr 2015	Dec 2025	Solar
Atwell Island West Solar	RWE Clean Energy	Alpaugh, CA	52 GWh	Apr 2015	Dec 2025	Solar
Alamo Solar	Onward Energy	Oro Grande, CA	49 GWh	Apr 2015	Dec 2025	Solar
Coronal Lost Hills	Arevon Energy, Inc.	Lost Hills, CA	35 GWh	Apr 2015	Dec 2025	Solar
Sun Harvest Solar NDP1	Altus Power America Management, LLC	Dos Palos, CA	3 GWh	Apr 2015	Dec 2025	Solar
Venable Solar 1	Madison Energy Investments LLC	Blythe, CA	4 GWh	Mar 2015	Dec 2025	Solar
Venable Solar 2	Madison Energy Investments LLC	Blythe, CA	3 GWh	Mar 2015	Sep 2025	Solar
Lost Hills/Blackwell	Southern Power Co	Lost Hills, CA	59 GWh	Mar 2015	Dec 2025	Solar
Rancho Cucamonga Dist #1	Altus Power America Management, LLC	Rancho Cucamonga, CA	3 GWh	Mar 2015	Dec 2025	Solar
Colton Solar Two, LLC	Colton Solar Two, LLC	Colton, CA	789 MWh	Mar 2015	Dec 2025	Solar
Santa Fe Springs Rooftop Solar BLDG M	Golden Springs Development Company LLC	Santa Fe Springs, CA	3 GWh	Feb 2015	Dec 2025	Solar
Santa Fe Springs Rooftop Solar BLDG H	Golden Springs Development Company LLC	Santa Fe Springs, CA	2 GWh	Feb 2015	Dec 2025	Solar
Park Meridian #1	Altus Power America Management, LLC	Riverside, CA	3 GWh	Feb 2015	Dec 2025	Solar
Terra Francesco	Altus Power America Management, LLC	Ontario, CA	2 GWh	Feb 2015	Dec 2025	Solar
Vega Solar	Vega Solar, LLC	Los Banos, CA	49 GWh	Feb 2015	Dec 2025	Solar
UC Davis South Campus	Solar Star California XXXII, LLC	Davis, CA	12 GWh	Feb 2015	Dec 2025	Solar
Silicon Valley Clean Water	Silicon Valley Clean Water	Redwood City, CA	8 GWh	Feb 2015	Dec 2025	Other Biomass Gas : 95.0% Natural Gas : 5.0%
Firebaugh-CCS-PV-1	Mike Woolf Farming	Firebaugh, CA	2 GWh	Feb 2015	Dec 2025	Solar
Wildwood Solar I, LLC	Duke Energy Renewables Services	Wasco, CA	48 GWh	Jan 2015	Dec 2025	Solar
Zero Waste Energy Development Co LLC	Zero Waste Energy Development Company LLC	San Jose, CA	2 GWh	Jan 2015	Dec 2024	Other Biomass Gas
Rising Tree Wind Farm	Rising Tree Wind Farm LLC	Mojave, CA	250 GWh	Dec 2014	Dec 2025	Wind
Rising Tree Wind Farm II	Rising Tree Wind Farm II LLC	Mojave, CA	54 GWh	Dec 2014	Dec 2025	Wind
Pumpjack Solar I	Duke Energy Renewables Services	McKittrick, CA	51 GWh	Dec 2014	Dec 2025	Solar
Diamond Valley Solar Project	Ecos Energy LLC	Winchester, CA	2 GWh	Dec 2014	Dec 2025	Solar
Coronus Adelanto West 1	Clean Focus Yield, LLC	Adelanto, CA	3 GWh	Dec 2014	Dec 2025	Solar
Coronus Adelanto West 2	Clean Focus Yield, LLC	Adelanto, CA	3 GWh	Dec 2014	Dec 2025	Solar
Intel Santa Clara	Bloom Energy	Santa Clara, CA	7 GWh	Dec 2014	Dec 2025	Natural Gas
Mojave Solar Project	Mojave Solar LLC	Hinkley, CA	592 GWh	Nov 2014	May 2026	Solar
Lone Valley Solar Park I LLC	Lone Valley Solar Park I LLC	Lucerne Valley, CA	24 GWh	Nov 2014	Dec 2025	Solar
Garnet Solar Generation Station I LLC	Garnet Solar Generation Station I LLC	Palm Springs, CA	9 GWh	Nov 2014	Dec 2024	Solar
Summer North Solar	AES Distributed Energy	Lancaster, CA	13 GWh	Nov 2014	Dec 2025	Solar
RE Camelot LLC	Onward Energy	Mojave, CA	121 GWh	Nov 2014	Dec 2025	Solar
RE Adams East, LLC	Onward Energy	Fresno, CA	41 GWh	Nov 2014	Dec 2025	Solar
RE Kansas Solar, LLC	Onward Energy	Lemoore, CA	24 GWh	Nov 2014	Dec 2025	Solar
RE Old River One, LLC	Onward Energy	Bakersfield, CA	38 GWh	Nov 2014	Dec 2025	Solar
RE Columbia Two, LLC	Onward Energy	Mojave, CA	41 GWh	Nov 2014	Dec 2025	Solar
RE Kent South, LLC	Onward Energy	Lemoore, CA	36 GWh	Nov 2014	Dec 2025	Solar
CID Solar, LLC	Onward Energy	Corcoran, CA	41 GWh	Nov 2014	Dec 2025	Solar
Lone Valley Solar Park II LLC	Lone Valley Solar Park II LLC	Lucerne Valley, CA	53 GWh	Nov 2014	Dec 2025	Solar
Lancaster Little Rock	AES Distributed Energy	Landers, CA	3 GWh	Nov 2014	Dec 2025	Solar
Merced Solar LLC	Ecos Energy LLC	Merced, CA	4 GWh	Nov 2014	Dec 2025	Solar
Mission Solar LLC	Ecos Energy LLC	Merced, CA	4 GWh	Nov 2014	Dec 2025	Solar
Hollister Solar LLC	Ecos Energy LLC	Hollister, CA	4 GWh	Nov 2014	Dec 2025	Solar
Madelyn Solar, LLC	CD US Solar PO 3, LLC	Silver Lake, CA	2 GWh	Nov 2014	Dec 2025	Solar
Rudy Solar, LLC	CD US Solar PO 3, LLC	Silver Lake, CA	3 GWh	Nov 2014	Dec 2025	Solar
Mitchell Solar, LLC	CD US Solar PO 3, LLC	Silver Lake, CA	4 GWh	Nov 2014	Dec 2025	Solar
SCV Water - Gladbach Water Treatment Plant Phases I and II	SCV Water	Santa Clara, CA	858 MWh	Nov 2014	Oct 2025	Solar
Regulus Solar Project	Regulus Solar, LLC	Bakersfield, CA	150 GWh	Oct 2014	Dec 2025	Solar
Desert Green Solar Farm LLC	Invenergy Services LLC	Boulevard, CA	10 GWh	Oct 2014	Dec 2024	Solar
Solar Gen 2 Solar Facility	Southern Power Co	Calipatria, CA	377 GWh	Oct 2014	Dec 2025	Solar
Western Antelope Blue Sky Ranch A	AES Distributed Energy	Lancaster, CA	43 GWh	Oct 2014	Dec 2025	Solar
Lancaster Dry Farm Ranch B	AES Distributed Energy	Lancaster, CA	10 GWh	Oct 2014	Dec 2025	Solar
Expressway Solar C2	AES Distributed Energy	Victorville, CA	3 GWh	Oct 2014	Dec 2025	Solar
Lancaster Solar 1	Boralex US Operations LLC	Lancaster, CA	2 GWh	Oct 2014	Dec 2025	Solar
Lancaster Solar 2	Boralex US Operations LLC	Lancaster, CA	2 GWh	Oct 2014	Dec 2025	Solar
Victor Mesa Linda B2	AES Distributed Energy	Victorville, CA	4 GWh	Oct 2014	Dec 2025	Solar
Victor Mesa Linda C2	AES Distributed Energy	Victorville, CA	4 GWh	Oct 2014	Dec 2025	Solar
Victor Mesa Linda D2	AES Distributed Energy	Victorville, CA	4 GWh	Oct 2014	Dec 2025	Solar
Victor Mesa Linda E2	AES Distributed Energy	Victorville, CA	4 GWh	Oct 2014	Dec 2025	Solar
City of Soledad Water Reclamation	Foundation HA Energy Generation, LLC	Soledad, CA	4 GWh	Oct 2014	Dec 2025	Wind
Taylor Farms	Foundation HA Energy Generation, LLC	Gonzales, CA	4 GWh	Oct 2014	Dec 2025	Wind
Anheuser-Busch #2	Foundation HA Energy Generation, LLC	Fairfield, CA	4 GWh	Oct 2014	May 2026	Wind
SCE-Snowline-White Road (South)	SunEdison LLC	Phelan, CA	3 GWh	Oct 2014	Dec 2025	Solar
SCE-Snowline-White Road (North)	SunEdison LLC	Phelan, CA	3 GWh	Oct 2014	Dec 2025	Solar
SCE-Snowline-White Rd (Central)	SunEdison LLC	Phelan, CA	3 GWh	Oct 2014	Dec 2025	Solar
Baker Creek Hydroelectric	Baker Station Associates, LP	Bridgeville, CA	3 GWh	Oct 2014	Dec 2025	Water
TA-Acacia, LLC	Onward Energy	Lancaster, CA	48 GWh	Oct 2014	Dec 2025	Solar
SCE-Snowline-Duncan Road (North)	SunEdison LLC	Phelan, CA	3 GWh	Sep 2014	Dec 2025	Solar
SCE-Snowline-Duncan Road (South)	SunEdison LLC	Phelan, CA	2 GWh	Sep 2014	Dec 2025	Solar
White River Solar 2	RWE Clean Energy	Alpaugh, CA	49 GWh	Aug 2014	Dec 2025	Solar
Broadway 2 - UC Riverside	MN8 Energy LLC	Riverside, CA	4 GWh	Aug 2014	Dec 2025	Solar
AV Solar Ranch One	AV Solar Ranch 1 LLC	Lancaster, CA	560 GWh	Jul 2014	May 2026	Solar
Sunshine Gas Producers	Sunshine Gas Producers LLC	Sylmar, CA	132 GWh	Jul 2014	May 2026	Landfill Gas
Hesperia	SunEdison LLC	Hesperia, CA	3 GWh	Jul 2014	Dec 2025	Solar
California PV Energy at ISD WWTP	California PV Energy LLC	Oakley, CA	2 GWh	Jul 2014	Dec 2025	Solar
Hanford 1 and 2	Arevon Energy, Inc.	Hanford, CA	5 GWh	Jul 2014	Dec 2025	Solar
Anaheim Solar Energy Plant	Anaheim Public Utilities	Anaheim, CA	2 GWh	Jul 2014	Dec 2025	Solar
Maxim	Bloom Energy	San Jose, CA	7 GWh	Jul 2014	Dec 2025	Natural Gas
Summer Solar D2	AES Distributed Energy	Lancaster, CA	2 GWh	Jun 2014	Dec 2025	Solar
Farmersville	Arevon Energy, Inc.	Farmersville, CA	6 GWh	Jun 2014	Dec 2025	Solar
Porterville 6 and 7	Arevon Energy, Inc.	Porterville, CA	4 GWh	Jun 2014	Dec 2025	Solar
Golden Acorn Casino	Foundation HA Energy Generation, LLC	Campo, CA	4 GWh	Jun 2014	May 2026	Wind
DSH (CA) - Coalinga State Hospital	Team-Solar, Inc.	Coalinga, CA	4 GWh	Jun 2014	Dec 2025	Solar
CDCR (CA) - Pleasant Valley State Prison	Team-Solar, Inc.	Coalinga, CA	3 GWh	Jun 2014	Dec 2025	Solar
Orion Solar II	Orion Solar II, LLC	Arvin, CA	16 GWh	May 2014	Dec 2025	Solar
Summer Solar A2	AES Distributed Energy	Lancaster, CA	3 GWh	May 2014	Dec 2025	Solar
Summer Solar B2	AES Distributed Energy	Lancaster, CA	3 GWh	May 2014	Dec 2025	Solar
Summer Solar C2	AES Distributed Energy	Lancaster, CA	3 GWh	May 2014	Dec 2025	Solar
Cloverdale Solar I	Altus Power America Management, LLC	Cloverdale, CA	1 GWh	May 2014	Dec 2025	Solar
Division 1	Tesla Inc.	Lancaster, CA	2 GWh	May 2014	Dec 2025	Solar
Division 2	Tesla Inc.	Lancaster, CA	2 GWh	May 2014	Dec 2025	Solar
Division 3	Tesla Inc.	Lancaster, CA	1 GWh	May 2014	Dec 2025	Solar
Kettering Solar 1	Tesla Inc.	Lancaster, CA	2 GWh	May 2014	Nov 2025	Solar
Kettering Solar 2	Tesla Inc.	Lancaster, CA	2 GWh	May 2014	Nov 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