244th largest plant in Pennsylvania · 11698th nationally
Merck - Upper Gwynedd Solar Array is a solar power plant in Pennsylvania with a nameplate capacity of 1.5 MW. It generates roughly 1.8k MWh per year — enough to power about 174 average U.S. homes.
Its capacity factor of 14% reflects intermittent or peaking operation.
| Plant Name | Merck - Upper Gwynedd Solar Array |
|---|---|
| Operator | Merck - Upper Gwynedd Solar Array |
| City | North Wales |
| County | Montgomery County |
| State | Pennsylvania |
| ZIP | 19454 |
| Coordinates | 40.21540, -75.28309 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| SA-1 | Solar Photovoltaic | Solar | 1.5 MW | Operating | 2011 |
| 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.