Marshall Energy Facility
Marshall County, Kentucky · EIA plant ID 55232 · Operator: Tennessee Valley Authority
Nameplate688MWSummer 582 MW
Generators8in service
Net generation60GWh12 mo to Aug 2026
Capacity factor1%gas/coal/oil units, summer MW
Heat rate12,485Btu/kWhfossil units, electric fuel, HHV
First online2002Runs as peaking
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
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.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2002 | 31.3 | 1.3% | 12,469 |
| 2003 | 0 | 0.0% | — |
| 2004 | 0 | 0.0% | — |
| 2005 | 0 | 0.0% | — |
| 2006 | 0 | 0.0% | — |
| 2007 | 116 | 2.1% | 12,757 |
| 2008 | 37.9 | 0.7% | 14,010 |
| 2009 | 49.7 | 0.9% | 13,011 |
| 2010 | 160.9 | 3.0% | 12,432 |
| 2011 | 84.2 | 1.6% | 12,609 |
| 2012 | 133.2 | 2.6% | 12,573 |
| 2013 | 75 | 1.5% | 12,759 |
| 2014 | 66.6 | 1.3% | 12,712 |
| 2015 | 66.7 | 1.3% | 13,277 |
| 2016 | 201.9 | 4.0% | 12,347 |
| 2017 | 348.9 | 6.9% | 12,330 |
| 2018 | 321.3 | 6.3% | 11,539 |
| 2019 | 73.1 | 1.4% | 12,442 |
| 2020 | 21.1 | 0.4% | 14,972 |
| 2021 | 45.4 | 0.9% | 13,180 |
| 2022 | 452.2 | 8.9% | 11,717 |
| 2023 | 137.2 | 2.7% | 12,270 |
| 2024 | 65.9 | 1.3% | 12,670 |
| 2025 | 129.3 | 2.5% | 11,739 |
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 mo26,176 MMBtu
Last month with liquid burnAug 2026
Switch while operatingYes
Net summer MW on gas582
Net summer MW on oil596
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 ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| CT1 | Natural Gas Fired Combustion Turbine | GT | 86 | 72.7 | Jun 2002 | Operating | — | coming soon |
| CT2 | Natural Gas Fired Combustion Turbine | GT | 86 | 72.7 | Jun 2002 | Operating | — | coming soon |
| CT3 | Natural Gas Fired Combustion Turbine | GT | 86 | 72.7 | Jun 2002 | Operating | — | coming soon |
| CT4 | Natural Gas Fired Combustion Turbine | GT | 86 | 72.7 | Jun 2002 | Operating (Standby / backup) | — | coming soon |
| CT5 | Natural Gas Fired Combustion Turbine | GT | 86 | 72.7 | Jun 2002 | Operating (Standby / backup) | — | coming soon |
| CT6 | Natural Gas Fired Combustion Turbine | GT | 86 | 72.7 | Aug 2002 | Operating (Standby / backup) | — | coming soon |
| CT7 | Natural Gas Fired Combustion Turbine | GT | 86 | 72.7 | Aug 2002 | Operating (Standby / backup) | — | coming soon |
| CT8 | Natural Gas Fired Combustion Turbine | GT | 86 | 72.7 | Aug 2002 | Operating (Standby / backup) | — | 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 Authority | 100.0% | 688 MW |
Nearby plants
Within 80 km.
| Calvert City | 27 MW | 4.3 km |
| Kentucky Dam | 219 MW | 11.4 km |
| Barkley | 130 MW | 15.5 km |
| Smithland Hydroelectric Plant | 76 MW | 15.8 km |
| PPS Power Plant No 1 | 120 MW | 19.5 km |
| Ashwood Solar I | 86 MW | 28 km |