12th largest plant in Missouri · 612th nationally
John Twitty Energy Center is a coal power plant in Missouri with a nameplate capacity of 603 MW. It generates roughly 1.9M MWh per year — enough to power about 185,122 average U.S. homes.
Its capacity factor of 37% reflects intermittent or peaking operation. At 2160 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (603 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.
| Plant Name | John Twitty Energy Center |
|---|---|
| Operator | City Utilities Of Springfield - (Mo) |
| City | Springfield |
| County | Greene County |
| State | Missouri |
| ZIP | 65807 |
| Coordinates | 37.15171, -93.38804 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| ST2 | Conventional Steam Coal | Subbituminous Coal | 300 MW | Operating | 2011 |
| ST1 | Conventional Steam Coal | Subbituminous Coal | 194 MW | Operating | 1976 |
| GT1 | Natural Gas Fired Combustion Turbine | Natural Gas | 57.0 MW | Operating | 1983 |
| GT2 | Natural Gas Fired Combustion Turbine | Natural Gas | 52.0 MW | Operating | 1983 |
| CO₂ | 2.1M metric tons |
|---|---|
| SO₂ | 2.5k metric tons |
| NOₓ | 966 metric tons |
| CO₂ Rate | 2160 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 | MRO |
|---|---|
| Balancing Authority | Southwest Power Pool |
Coal plants burn pulverized coal to boil water and spin steam turbines. They emit substantial CO₂, SO₂, and NOₓ along with mercury and particulate matter. Modern units include scrubbers and selective catalytic reduction; older units are increasingly being retired or converted to natural gas as economics shift.