How many natural gas power plants are in CAISO?

CAISO has 276 operating utility-scale natural gas power plants with 32 GW of capacity, according to the EIA's monthly survey of power plants.

What is the largest natural gas power plant in CAISO?

Ormond Beach in Ventura County, California is the largest, at 1,612 MW. It came online in 1973.

How many natural gas power plants were built in CAISO in 2025?

1 natural gas power plant came online in CAISO in 2025, with 10 MW of capacity.

Who is developing natural gas power plants in CAISO?

Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.

Natural gas power plants in CAISO

CAISO has 276 operating natural gas power plants with 32 GW of capacity. 1 came online in 2025.

Operating276

See planned natural gas power plants in CAISO

Updated monthly. Last updated November 2026.

Under 250 MW250–999 MW1 GW and up

Updated monthly. Last updated November 2026.

CAISO had 215 natural gas power plants online in 2016 and 276 in 2026

215

228

242

257

264

268

270

274

275

276

2016’162017’172018’182019’192020’202021’212022’222023’232024’242025’252026’26

Natural gas power plants online at the end of each year. Source: EIA-860M, compiled by Cleanview.

The 10 largest natural gas power plants in CAISO

Operating, by capacity

#	Natural gas power plant	Location	Year online	Capacity
1	Ormond Beach	Ventura County, California	1973	1,612 MW
2	Dynegy Moss Landing Power Plant Hybrid	Monterey County, California	2002	1,398 MW
3	La Paloma Generating Plant	Kern County, California	2003	1,156 MW
4	AES Alamitos LLC	Los Angeles County, California	1964	1,115 MW
5	Mountainview Generating Station	San Bernardino County, California	2006	1,037 MW
6	High Desert Power Plant	San Bernardino County, California	2003	960 MW
7	Delta Energy Center	Contra Costa County, California	2002	944 MW
8	Marsh Landing Generating Station	Contra Costa County, California	2013	828 MW
9	Sentinel Energy Center, LLC	Riverside County, California	2013	800 MW
10	Pastoria Energy Facility, LLC	Kern County, California	2005	779 MW

Natural gas power plants that came online most recently in CAISO

Newest first

#	Natural gas power plant	Location	Year online	Capacity
1	Blacksand Generating Facility	Orange County, California	2025	10 MW
2	Enchanted Rock Lodi	San Joaquin County, California	2024	48 MW
3	BD Biosciences - Milpitas, CA	Santa Clara County, California	2023	1 MW
4	GreenStruxure REP009, LLC	Los Angeles County, California	2023	1 MW
5	AmericoldCA - Plainville, CT	Hartford County, Connecticut	2023	2 MW
6	Biola University Hybrid	Los Angeles County, California	2023	4 MW
7	Anheuser Busch - Fairfield	Solano County, California	2022	3 MW
8	Greenleaf 1	Sutter County, California	2022	70 MW
9	Comcast - Universal City	Los Angeles County, California	2021	1 MW
10	San Manuel Central Plant Cogens	San Bernardino County, California	2021	5 MW

The developer behind each project is on paid plans. See plans

How Cleanview tracks natural gas power plants

Operating natural gas power plants come from the EIA's monthly survey of power plants. Planned projects come from the grid operators' interconnection queues. We research who is developing each one, since a queue lists a project company, not its owner.

Questions about natural gas power plants in CAISO

How many natural gas power plants are in CAISO?: CAISO has 276 operating utility-scale natural gas power plants with 32 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest natural gas power plant in CAISO?: Ormond Beach in Ventura County, California is the largest, at 1,612 MW. It came online in 1973.
How many natural gas power plants were built in CAISO in 2025?: 1 natural gas power plant came online in CAISO in 2025, with 10 MW of capacity.
Who is developing natural gas power plants in CAISO?: Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.