How many natural gas power plants are in SPP?

SPP has 195 operating utility-scale natural gas power plants with 38 GW of capacity, according to the EIA's monthly survey of power plants.

What is the largest natural gas power plant in SPP?

Seminole (OK) in Seminole County, Oklahoma is the largest, at 1,701 MW. It came online in 1975.

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

3 natural gas power plants came online in SPP in 2025, with 1,588 MW of capacity.

Who is developing natural gas power plants in SPP?

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 SPP

SPP has 195 operating natural gas power plants with 38 GW of capacity. 3 came online in 2025.

Operating195

See planned natural gas power plants in SPP

Updated monthly. Last updated November 2026.

Under 250 MW250–999 MW1 GW and up

Updated monthly. Last updated November 2026.

SPP had 175 natural gas power plants online in 2016 and 195 in 2026

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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 SPP

Operating, by capacity

#	Natural gas power plant	Location	Year online	Capacity
1	Seminole (OK)	Seminole County, Oklahoma	1975	1,701 MW
2	Redbud Power Plant	Oklahoma County, Oklahoma	2004	1,434 MW
3	Oneta Energy Center	Wagoner County, Oklahoma	2003	1,214 MW
4	GREC	Mayes County, Oklahoma	2026	1,194 MW
5	Muskogee	Muskogee County, Oklahoma	1978	1,144 MW
6	Riverside (OK)	Tulsa County, Oklahoma	2008	1,119 MW
7	Harrington	Potter County, Texas	1980	1,080 MW
8	Northeastern	Rogers County, Oklahoma	2001	1,000 MW
9	Green Country Power Station	Tulsa County, Oklahoma	2002	904 MW
10	Pioneer Generation Station	Williams County, North Dakota	2025	897 MW

Natural gas power plants that came online most recently in SPP

Newest first

#	Natural gas power plant	Location	Year online	Capacity
1	GREC	Mayes County, Oklahoma	2026	1,194 MW
2	Thomas Fitzhugh	Franklin County, Arkansas	2026	256 MW
3	Tinker	Oklahoma County, Oklahoma	2026	178 MW
4	Standing Bear Lake	Douglas County, Nebraska	2025	163 MW
5	Pioneer Generation Station	Williams County, North Dakota	2025	897 MW
6	Turtle Creek	Sarpy County, Nebraska	2025	528 MW
7	Washington	Washington County, Kansas	2024	9 MW
8	Western Sugar Coop - Scottsbluff	Scotts Bluff County, Nebraska	2023	7 MW
9	Buzzard Flop	Hughes County, Oklahoma	2023	8 MW
10	Stuart (OK)	Pittsburg County, Oklahoma	2023	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 SPP

How many natural gas power plants are in SPP?: SPP has 195 operating utility-scale natural gas power plants with 38 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest natural gas power plant in SPP?: Seminole (OK) in Seminole County, Oklahoma is the largest, at 1,701 MW. It came online in 1975.
How many natural gas power plants were built in SPP in 2025?: 3 natural gas power plants came online in SPP in 2025, with 1,588 MW of capacity.
Who is developing natural gas power plants in SPP?: 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.