1676 MW Natural Gas operating in Humphreys, TN — Tennessee Valley Authority
1,676 MW
Nameplate Capacity
24
Generators
units
Natural Gas Fired Combustion Turbine
Technology
1975
Operating Since
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Tennessee Valley Authority | Tennessee Valley Authority | — |
| Owner(s) | Tennessee Valley Authority | Tennessee Valley Authority | Tennessee Valley Authority |
| Status | Operating | — | — |
The Johnsonville Combustion Turbine Plant is a 1.2-gigawatt, simple cycle natural gas power plant located in New Johnsonville, Tennessee in Humphreys County, Tennessee. It is operated by the Tennessee Valley Authority (TVA).
Read more on WikipediaThe Johnsonville plant is a 1,676 MW natural gas-fired power plant located in Humphreys County, Tennessee. It is owned and operated by the Tennessee Valley Authority (TVA). The plant began operating in 1975 and consists of 24 natural gas-fired combustion turbine generators. Johnsonville is the fourth-largest power plant in Tennessee out of nine total plants, and ranks 49th nationally out of 945 plants. It operates within the Tennessee Valley Authority balancing authority area and the SERC NERC region.
In the most recent year of data, the Johnsonville plant generated 1,433,228 MWh of electricity, achieving a capacity factor of 9.8%. The plant is tracked in energy industry news, with 10 recent articles, including 6 related to industry trends and 4 related to grid operations.
Generated from EIA, GEM, and public data sources
NERC Region
SERC
Balancing Authority
Tennessee Valley Authority
Grid Voltage
161 kV
Regulatory Status
RE
Entity Type
Federal
Sector
Electric Utility
190.4K MWh
Latest Month
1.4M MWh
Annual Generation
9.8%
Capacity Factor
No financial data available for this plant.
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
Tennessee Valley Authority expanding power capabilities
NEW JOHNSONVILLE, Tenn. (WKRN) — Just in time for winter, the Tennessee Valley Authority is adding to its power grid.
5 takeaways on TVA’s future under Trump from Senate hearing
President Donald Trump's nominees to the Tennessee Valley Authority board committed to keeping the utility public in a Senate hearing but...
5 takeaways on TVA’s future under Trump from Senate hearing
President Donald Trump's nominees to the Tennessee Valley Authority board committed to keeping the utility public in a Senate hearing but...
Trump TVA nominees each say ‘no’ to privatizing federal utility
President Donald Trump's nominees to the Tennessee Valley Authority board of directors committed to keeping the nation's largest public...
Last updated 2026-03-14
View all 10 articles