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United States › Power plants › Gas power plants › Tennessee

GAS POWER PLANTS

Johnsonville

Johnsonville is a 1,676 MW operating gas power plant in Humphreys County, Tennessee, operated by Tennessee Valley Authority.

Plant statusOperating
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (completed)
  4. OperatingOct 1951 (current stage)
  5. ClosedMar 2025 (not yet reached)

Planned retirement: Dec 2028. This plant has generators at more than one stage; see the table below.

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Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
G17Natural Gas Fired Combustion Turbine85 MW OperatingJul 2000
G18Natural Gas Fired Combustion Turbine85 MW OperatingJul 2000
G19Natural Gas Fired Combustion Turbine85 MW OperatingJul 2000
G20Natural Gas Fired Combustion Turbine85 MW OperatingJul 2000
G10Natural Gas Fired Combustion Turbine68 MW OperatingJun 1975Planned Dec 2028
G11Natural Gas Fired Combustion Turbine68 MW OperatingJun 1975Planned Dec 2028
G12Natural Gas Fired Combustion Turbine68 MW OperatingJun 1975Planned Dec 2028
G13Natural Gas Fired Combustion Turbine68 MW OperatingJun 1975Planned Dec 2028
G14Natural Gas Fired Combustion Turbine68 MW OperatingJun 1975Planned Dec 2028
G15Natural Gas Fired Combustion Turbine68 MW OperatingJun 1975Planned Dec 2028
G16Natural Gas Fired Combustion Turbine68 MW OperatingJun 1975Planned Dec 2028
GT1Natural Gas Fired Combustion Turbine68 MW OperatingJun 1975Planned Dec 2028
GT2Natural Gas Fired Combustion Turbine68 MW OperatingJun 1975Planned Dec 2028
GT3Natural Gas Fired Combustion Turbine68 MW OperatingJun 1975Planned Dec 2028
G21Natural Gas Fired Combustion Turbine66 MW OperatingMay 2025
G22Natural Gas Fired Combustion Turbine66 MW OperatingMay 2025
G23Natural Gas Fired Combustion Turbine66 MW OperatingMay 2025
G24Natural Gas Fired Combustion Turbine66 MW OperatingMay 2025
G25Natural Gas Fired Combustion Turbine66 MW OperatingMay 2025
G26Natural Gas Fired Combustion Turbine66 MW OperatingAug 2025
G27Natural Gas Fired Combustion Turbine66 MW OperatingMay 2025
G28Natural Gas Fired Combustion Turbine66 MW OperatingMay 2025
G29Natural Gas Fired Combustion Turbine66 MW OperatingMay 2025
G30Natural Gas Fired Combustion Turbine66 MW OperatingMay 2025
7Conventional Steam Coal173 MW RetiredNov 1958Dec 2015
8Conventional Steam Coal173 MW RetiredJan 1959Dec 2015
9Conventional Steam Coal173 MW RetiredJun 1959Dec 2015
10Conventional Steam Coal173 MW RetiredAug 1959Dec 2015
5Conventional Steam Coal147 MW RetiredNov 1952Dec 2015
6Conventional Steam Coal147 MW RetiredFeb 1953Dec 2015
1Conventional Steam Coal125 MW RetiredOct 1951Dec 2017
2Conventional Steam Coal125 MW RetiredNov 1951Dec 2017
3Conventional Steam Coal125 MW RetiredFeb 1952Dec 2017
4Conventional Steam Coal125 MW RetiredApr 1952Dec 2017
GT4Natural Gas Fired Combustion Turbine68 MW RetiredJun 1975Mar 2025
GT5Natural Gas Fired Combustion Turbine68 MW RetiredJun 1975Mar 2025
GT6Natural Gas Fired Combustion Turbine68 MW RetiredJun 1975Mar 2025
GT7Natural Gas Fired Combustion Turbine68 MW RetiredJun 1975Mar 2025
GT8Natural Gas Fired Combustion Turbine68 MW RetiredJun 1975Mar 2025
GT9Natural Gas Fired Combustion Turbine68 MW RetiredJun 1975Mar 2025

Plant details

Operator
Tennessee Valley Authority
Location
Humphreys County, Tennessee
Balancing authority
TVA
Sector
Electric Utility
Capacity
Operating: 1,676 MW
Retired: 1,893 MW
First unit online
Oct 1951
EIA plant ID
3406

Location

36.0278, -87.9861

Nearby power plants

Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem