How many natural gas power plants are in Oregon?

Oregon has 12 operating utility-scale natural gas power plants with 4.3 GW of capacity, according to the EIA's monthly survey of power plants.

What is the largest natural gas power plant in Oregon?

Hermiston Power Partnership in Umatilla County, Oregon is the largest, at 689 MW. It came online in 2002.

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

0 natural gas power plants came online in Oregon in 2025, with 0 MW of capacity.

Who is developing natural gas power plants in Oregon?

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 Oregon

Oregon has 12 operating natural gas power plants with 4.3 GW of capacity.

Operating12

See planned natural gas power plants in Oregon

Updated monthly. Last updated November 2026.

Under 250 MW250–999 MW1 GW and up

Updated monthly. Last updated November 2026.

Oregon had 12 natural gas power plants online in 2016 and 12 in 2026

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 Oregon

Operating, by capacity

#	Natural gas power plant	County	Year online	Capacity
1	Hermiston Power Partnership	Umatilla County	2002	689 MW
2	Hermiston Generating Plant	Umatilla County	1996	621 MW
3	Beaver	Columbia County	2001	611 MW
4	Klamath Cogeneration Plant	Klamath County	2001	502 MW
5	Carty Generating Station	Morrow County	2016	500 MW
6	Port Westward	Columbia County	2007	483 MW
7	Coyote Springs	Morrow County	1995	296 MW
8	Coyote Springs II	Morrow County	2003	287 MW
9	Port Westward Unit 2	Columbia County	2015	226 MW
10	Klamath Expansion Project	Klamath County	2002	118 MW

Natural gas power plants that came online most recently in Oregon

Newest first

#	Natural gas power plant	County	Year online	Capacity
1	Carty Generating Station	Morrow County	2016	500 MW
2	Port Westward Unit 2	Columbia County	2015	226 MW
3	Univ of Oregon Central Power Station	Lane County	2012	11 MW
4	Oregon State University Energy Center	Benton County	2010	6 MW
5	Port Westward	Columbia County	2007	483 MW
6	Coyote Springs II	Morrow County	2003	287 MW
7	Hermiston Power Partnership	Umatilla County	2002	689 MW
8	Klamath Expansion Project	Klamath County	2002	118 MW
9	Beaver	Columbia County	2001	611 MW
10	Klamath Cogeneration Plant	Klamath County	2001	502 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 Oregon

How many natural gas power plants are in Oregon?: Oregon has 12 operating utility-scale natural gas power plants with 4.3 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest natural gas power plant in Oregon?: Hermiston Power Partnership in Umatilla County, Oregon is the largest, at 689 MW. It came online in 2002.
How many natural gas power plants were built in Oregon in 2025?: 0 natural gas power plants came online in Oregon in 2025, with 0 MW of capacity.
Who is developing natural gas power plants in Oregon?: 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.