199th largest plant in Pennsylvania · 6987th nationally
Keystone Solar is a solar power plant in Pennsylvania with a nameplate capacity of 5.0 MW. It generates roughly 7.3k MWh per year — enough to power about 698 average U.S. homes.
Its capacity factor of 17% reflects intermittent or peaking operation.
| Plant Name | Keystone Solar |
|---|---|
| Operator | Altus Power America Management, Llc |
| City | Quarryville |
| County | Lancaster County |
| State | Pennsylvania |
| ZIP | 17566 |
| Coordinates | 39.86111, -76.22111 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| KSTN | Solar Photovoltaic | Solar | 5.0 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.