39th largest plant in Maryland · 5263rd nationally
Mount Saint Mary's is a solar power plant in Maryland with a nameplate capacity of 13.7 MW. It generates roughly 17.8k MWh per year — enough to power about 1,696 average U.S. homes.
Its capacity factor of 15% reflects intermittent or peaking operation.
| Plant Name | Mount Saint Mary's |
|---|---|
| Operator | Constellation Solar Horizons Llc |
| City | Emmitsburg |
| County | Frederick County |
| State | Maryland |
| ZIP | 21727 |
| Coordinates | 39.67500, -77.34500 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| PV1 | Solar Photovoltaic | Solar | 13.7 MW | Operating | 2012 |
| NERC Region | RFC |
|---|---|
| Balancing Authority | Pjm Interconnection, Llc |
Utility-scale solar farms convert sunlight directly into electricity using photovoltaic panels. They produce zero direct emissions and have no fuel cost, but generation is variable — peaking at midday and falling to zero at night. Capacity factors typically run 18–28% in good locations.