63rd largest plant in Missouri · 4069th nationally
Trigen St. Louis is a natural gas power plant in Missouri with a nameplate capacity of 34.2 MW. It generates roughly 79.0k MWh per year — enough to power about 7,521 average U.S. homes.
Its capacity factor of 26% reflects intermittent or peaking operation. At 599 lb CO₂/MWh, its emission rate sits below the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (34.2 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 | Trigen St. Louis |
|---|---|
| Operator | Centerstream Stl, Llc |
| City | St Louis |
| County | St Louis County |
| State | Missouri |
| ZIP | 63102 |
| Coordinates | 38.63590, -90.18090 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| ST-3 | Natural Gas Fired Combined Cycle | Natural Gas | 18.2 MW | Operating | 2000 |
| CT-1 | Natural Gas Fired Combined Cycle | Natural Gas | 5.9 MW | Operating | 1999 |
| CT-2 | Natural Gas Fired Combined Cycle | Natural Gas | 5.9 MW | Operating | 1999 |
| ST-4 | Natural Gas Steam Turbine | Natural Gas | 1.5 MW | Operating | 1999 |
| ST-5 | Natural Gas Steam Turbine | Natural Gas | 1.5 MW | Operating | 1999 |
| IC-1 | Natural Gas Internal Combustion Engine | Natural Gas | 1.2 MW | Operating | 1999 |
| CO₂ | 23.7k metric tons |
|---|---|
| SO₂ | 1 metric tons |
| NOₓ | 61 metric tons |
| CO₂ Rate | 599 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 | Midcontinent Independent Transmission System Operator, Inc.. |
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.