How many natural gas power plants are in Tennessee?

Tennessee has 14 operating utility-scale natural gas power plants with 7.4 GW of capacity, according to the EIA's monthly survey of power plants.

What is the largest natural gas power plant in Tennessee?

Johnsonville in Humphreys County, Tennessee is the largest, at 1,676 MW. It came online in 2025.

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

1 natural gas power plant came online in Tennessee in 2025, with 1,676 MW of capacity.

Who is developing natural gas power plants in Tennessee?

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 Tennessee

Tennessee has 14 operating natural gas power plants with 7.4 GW of capacity. 1 came online in 2025.

Operating14

See planned natural gas power plants in Tennessee

Updated monthly. Last updated November 2026.

Under 250 MW250–999 MW1 GW and up

Updated monthly. Last updated November 2026.

Tennessee had 11 natural gas power plants online in 2016 and 14 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 Tennessee

Operating, by capacity

#	Natural gas power plant	County	Year online	Capacity
1	Johnsonville	Humphreys County	2025	1,676 MW
2	Lagoon Creek	Haywood County	2010	1,625 MW
3	Allen	Shelby County	2018	1,171 MW
4	John Sevier	Hawkins County	2012	997 MW
5	Gallatin (TN)	Sumner County	2000	663 MW
6	Gleason Generating Facility	Weakley County	2000	568 MW
7	Brownsville Peaking Power	Haywood County	1999	460 MW
8	Tennessee Eastman Operations	Sullivan County	1983	84 MW
9	Primient Loudon Plant	Loudon County	2016	61 MW
10	Domtar Kingsport Mill	Sullivan County	2006	50 MW

Natural gas power plants that came online most recently in Tennessee

Newest first

#	Natural gas power plant	County	Year online	Capacity
1	Johnsonville	Humphreys County	2025	1,676 MW
2	Allen	Shelby County	2018	1,171 MW
3	Vanderbilt University Power Plant	Davidson County	2017	19 MW
4	Primient Loudon Plant	Loudon County	2016	61 MW
5	John Sevier	Hawkins County	2012	997 MW
6	Lagoon Creek	Haywood County	2010	1,625 MW
7	Domtar Kingsport Mill	Sullivan County	2006	50 MW
8	Gallatin (TN)	Sumner County	2000	663 MW
9	Gleason Generating Facility	Weakley County	2000	568 MW
10	Brownsville Peaking Power	Haywood County	1999	460 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 Tennessee

How many natural gas power plants are in Tennessee?: Tennessee has 14 operating utility-scale natural gas power plants with 7.4 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest natural gas power plant in Tennessee?: Johnsonville in Humphreys County, Tennessee is the largest, at 1,676 MW. It came online in 2025.
How many natural gas power plants were built in Tennessee in 2025?: 1 natural gas power plant came online in Tennessee in 2025, with 1,676 MW of capacity.
Who is developing natural gas power plants in Tennessee?: 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.