179th largest plant in Michigan · 6451st nationally
St Louis is a hydroelectric power plant in Michigan with a nameplate capacity of 7.1 MW. It generates roughly 175 MWh per year — enough to power about 16 average U.S. homes.
Its capacity factor of 0% reflects intermittent or peaking operation. At 95 lb CO₂/MWh, its emission rate sits below the national grid average of roughly 800 lb/MWh.
| Plant Name | St Louis |
|---|---|
| Operator | City Of St Louis - (Mi) |
| City | St. Louis |
| County | Gratiot County |
| State | Michigan |
| ZIP | 48880 |
| Coordinates | 43.40190, -84.60140 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 8 | Petroleum Liquids | Distillate Oil | 1.5 MW | Operating | 2003 |
| 1 | Petroleum Liquids | Distillate Oil | 1.3 MW | Standby | 1958 |
| 9 | Petroleum Liquids | Distillate Oil | 1.3 MW | Standby | 2003 |
| 7 | Petroleum Liquids | Distillate Oil | 1.1 MW | Standby | 1996 |
| 3 | Petroleum Liquids | Distillate Oil | 0.9 MW | Retired | 1951 |
| 2 | Petroleum Liquids | Distillate Oil | 0.6 MW | Retired | 1945 |
| 5 | Conventional Hydroelectric | Water | 0.2 MW | Operating | 1919 |
| 6 | Conventional Hydroelectric | Water | 0.2 MW | Operating | 1919 |
| CO₂ | 8 metric tons |
|---|---|
| CO₂ Rate | 95 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 | RFC |
|---|---|
| Balancing Authority | Midcontinent Independent Transmission System Operator, Inc.. |
Hydroelectric plants spin turbines using falling or flowing water — typically from a dam-impounded reservoir. They are dispatchable, long-lived, and emission-free at the point of generation, though large reservoirs can disrupt rivers and ecosystems and methane can be released from flooded vegetation.