Granby Solar, LLC CSG
Solar power plant · Hampshire County, Massachusetts
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Granby Solar, LLC
- County
- Hampshire County
- Generating units
- 2
- Share of state capacity
- 0.04%
- Rank among solar plants in Massachusetts
- #69 of 531
- EIA plant code
- 63338
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 4787 | Solar Photovoltaic | 3.0 MW | 3.0 MW | 2021 | Operating |
| 4788 | Batteries | 2.0 MW | 2.0 MW | 2022 | 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
| East Longmeadow Solar PV | Solar | 5.0 MW |
| French King Solar LLC | Solar | 5.0 MW |
| Holden BESS 1 | Battery storage | 5.0 MW |
| Holiday Hill Community Wind | Wind | 5.0 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 5.0 MW solar plant and a 5.0 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