131st largest plant in Massachusetts · 6987th nationally
Shaffer is a solar power plant in Massachusetts with a nameplate capacity of 5.0 MW. It generates roughly 5.6k MWh per year — enough to power about 531 average U.S. homes.
Its capacity factor of 13% reflects intermittent or peaking operation.
| Plant Name | Shaffer |
|---|---|
| Operator | Cd Us Solar Mt3, Llc |
| City | Billerica |
| County | Middlesex County |
| State | Massachusetts |
| ZIP | 01821 |
| Coordinates | 42.59417, -71.24944 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| SHF01 | Solar Photovoltaic | Solar | 5.0 MW | Operating | 2014 |
| NERC Region | NPCC |
|---|---|
| Balancing Authority | Iso New England Inc. |
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.