Williamsburg
Solar power plant · Hampshire County, Massachusetts
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- AES Distributed Energy
- County
- Hampshire County
- Generating units
- 1
- Share of state capacity
- 0.03%
- Rank among solar plants in Massachusetts
- #156 of 531
- EIA plant code
- 62202
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| WIL01 | Solar Photovoltaic | 4.0 MW | 4.0 MW | 2019 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Massachusetts
| Westford Solar Park | Solar | 4.0 MW |
| Wilbraham | Solar | 4.0 MW |
| Nationwide | Solar | 3.9 MW |
| Syncarpha Freetown | Solar | 3.9 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 4.0 MW solar plant and a 4.0 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Massachusetts power plants · What Massachusetts actually generates