12th largest plant in Kentucky · 520th nationally
Marshall Energy Facility is a natural gas power plant in Kentucky with a nameplate capacity of 688 MW. It generates roughly 137.2k MWh per year — enough to power about 13,067 average U.S. homes.
Its capacity factor of 2% reflects intermittent or peaking operation. At 1489 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
| Plant Name | Marshall Energy Facility |
|---|---|
| Operator | Tennessee Valley Authority |
| City | Calvert City |
| County | Marshall County |
| State | Kentucky |
| ZIP | 42029 |
| Coordinates | 37.02860, -88.39580 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| CT1 | Natural Gas Fired Combustion Turbine | Natural Gas | 86.0 MW | Operating | 2002 |
| CT2 | Natural Gas Fired Combustion Turbine | Natural Gas | 86.0 MW | Operating | 2002 |
| CT3 | Natural Gas Fired Combustion Turbine | Natural Gas | 86.0 MW | Operating | 2002 |
| CT4 | Natural Gas Fired Combustion Turbine | Natural Gas | 86.0 MW | Standby | 2002 |
| CT5 | Natural Gas Fired Combustion Turbine | Natural Gas | 86.0 MW | Standby | 2002 |
| CT6 | Natural Gas Fired Combustion Turbine | Natural Gas | 86.0 MW | Standby | 2002 |
| CT7 | Natural Gas Fired Combustion Turbine | Natural Gas | 86.0 MW | Standby | 2002 |
| CT8 | Natural Gas Fired Combustion Turbine | Natural Gas | 86.0 MW | Standby | 2002 |
| CO₂ | 102.2k metric tons |
|---|---|
| SO₂ | 1 metric tons |
| NOₓ | 22 metric tons |
| CO₂ Rate | 1489 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
| NERC Region | SERC |
|---|---|
| Balancing Authority | Tennessee Valley Authority |
Natural gas plants are the workhorse of the modern grid. Combined-cycle units achieve very high efficiency and can ramp up and down quickly to balance variable renewables. They emit roughly half the CO₂ per MWh of coal and far less of other pollutants, but they still release upstream methane during fuel extraction.