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Lagoon Creek

Haywood County, Tennessee · EIA plant ID 7845 · Operator: Tennessee Valley Authority
Natural gasNatural Gas Fired Combined CycleNatural Gas Fired Combustion Turbine⛽ Dual-fuelBA: TVA
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Nameplate1,625MWSummer 1,407 MW
Generators15in service
Net generation3,867GWh12 mo to Aug 2026
Capacity factor31%gas/coal/oil units, summer MW
Heat rate7,139Btu/kWhfossil units, electric fuel, HHV
First online2001Runs as intermediate

The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.

Monthly net generation

EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
-2000200400GWh200320052007200920112013201520172019202120232025

Capacity factor by year

Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
0%10%20%30%2005201020152020202531.4% · 12 mo

Heat rate by year

Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
6,0008,00010,00012,000200520102015202020257,139 Btu/kWh · 12 mo
Annual data table
YearNet GWhCapacity factorHeat rate (Btu/kWh)
2003278.93.3%13,005
2004127.21.5%11,515
20053213.9%12,189
2006344.24.2%12,199
2007312.93.8%12,225
2008268.93.3%12,063
20092212.7%11,888
20101,612.616.4%9,656
20112,725.921.0%7,994
20123,729.930.2%8,117
20132,479.520.1%8,065
20142,396.219.4%8,031
20153,648.129.6%7,994
20163,906.431.6%8,295
20173,422.527.8%7,729
20183,624.129.4%8,232
20193,57429.0%7,498
20203,764.430.5%7,125
20213,015.124.5%7,229
20224,098.733.3%7,421
20233,417.627.7%6,975
20243,499.628.3%7,053
20253,449.328.0%7,184

Fuel capability

Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusLikely still dual fuel
Liquid fuel burned · 36 mo369,655 MMBtu
Last month with liquid burnAug 2026
Switch while operatingYes
Net summer MW on gas882
Net summer MW on oil899
Time gas → oilup to 1 h (EIA 1H)
Time oil → gasup to 1 h (EIA 1H)

Generators

EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
Gen IDTechnologyPrime moverNameplate MWSummer MWOnlineStatusPlanned retirementOEM / model
CTG1Natural Gas Fired Combined CycleCT173.4160Sep 2010Operating—coming soon
CTG2Natural Gas Fired Combined CycleCT173.4160Sep 2010Operating—coming soon
GT1Natural Gas Fired Combustion TurbineGT84.573.9Jun 2001Operating—coming soon
GT10Natural Gas Fired Combustion TurbineGT86.272.7Jun 2002Operating—coming soon
GT11Natural Gas Fired Combustion TurbineGT86.272.7Jun 2002Operating—coming soon
GT12Natural Gas Fired Combustion TurbineGT86.272.7Jun 2002Operating—coming soon
GT2Natural Gas Fired Combustion TurbineGT84.573.9Jun 2001Operating—coming soon
GT3Natural Gas Fired Combustion TurbineGT84.573.9Jun 2001Operating—coming soon
GT4Natural Gas Fired Combustion TurbineGT84.573.9Jun 2001Operating—coming soon
GT5Natural Gas Fired Combustion TurbineGT84.573.9Jun 2001Operating—coming soon
GT6Natural Gas Fired Combustion TurbineGT84.573.9Jun 2001Operating—coming soon
GT7Natural Gas Fired Combustion TurbineGT84.573.9Jul 2001Operating—coming soon
GT8Natural Gas Fired Combustion TurbineGT84.573.9Jul 2001Operating—coming soon
GT9Natural Gas Fired Combustion TurbineGT86.272.7Jun 2002Operating—coming soon
STG1Natural Gas Fired Combined CycleCA257.6205Sep 2010Operating—coming soon

Owner / operator

Operator: Tennessee Valley Authority. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Tennessee Valley Authority100.0%1,625 MW

Nearby plants

Within 80 km.
SR Durhamville—6.8 km
SR Forked Deer3 MW11.7 km
Haywood Solar3 MW13.3 km
SR Brownsville3 MW16.6 km
Brownsville Peaking Power460 MW22 km
West Tennessee Solar Farm4 MW27.7 km