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Lagoon Creek

Natural gas power plant · Haywood County, Tennessee

Nameplate capacity

1,625 MW

Rank in Tennessee

of 106 plants

In service since

2001

June 2001

Details

Primary fuel: Natural gas
Technology: Natural Gas Fired Combined Cycle
Operator: Tennessee Valley Authority
County: Haywood County
Generating units: 15
Share of state capacity: 6.85%
Rank among natural gas plants in Tennessee: #2 of 12
EIA plant code: 7845

Generating units

Individual generating units at Lagoon Creek
Unit	Technology	Nameplate	Summer	Online	Status
STG1	Natural Gas Fired Combined Cycle	258 MW	205 MW	2010	Operating
CTG1	Natural Gas Fired Combined Cycle	173 MW	160 MW	2010	Operating
CTG2	Natural Gas Fired Combined Cycle	173 MW	160 MW	2010	Operating
GT10	Natural Gas Fired Combustion Turbine	86 MW	73 MW	2002	Operating
GT11	Natural Gas Fired Combustion Turbine	86 MW	73 MW	2002	Operating
GT12	Natural Gas Fired Combustion Turbine	86 MW	73 MW	2002	Operating
GT9	Natural Gas Fired Combustion Turbine	86 MW	73 MW	2002	Operating
GT1	Natural Gas Fired Combustion Turbine	85 MW	74 MW	2001	Operating
GT2	Natural Gas Fired Combustion Turbine	85 MW	74 MW	2001	Operating
GT3	Natural Gas Fired Combustion Turbine	85 MW	74 MW	2001	Operating
GT4	Natural Gas Fired Combustion Turbine	85 MW	74 MW	2001	Operating
GT5	Natural Gas Fired Combustion Turbine	85 MW	74 MW	2001	Operating
GT6	Natural Gas Fired Combustion Turbine	85 MW	74 MW	2001	Operating
GT7	Natural Gas Fired Combustion Turbine	85 MW	74 MW	2001	Operating
GT8	Natural Gas Fired Combustion Turbine	85 MW	74 MW	2001	Operating

Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.

Similarly sized plants in Tennessee

Kingston	Coal	1,700 MW
Johnsonville	Natural gas	1,676 MW
Allen	Natural gas	1,290 MW
John Sevier	Natural gas	997 MW

About this data

From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 1,625 MW solar plant and a 1,625 MW nuclear plant have the same entry here and produce very different amounts of electricity.

“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Tennessee power plants · What Tennessee actually generates