Cranberry Point Energy Storage
Battery storage power plant · Plymouth County, Massachusetts
Details
- Primary fuel
- Battery storage
- Technology
- Batteries
- Operator
- Cranberry Point Energy Storage LLC
- County
- Plymouth County
- Generating units
- 1
- Share of state capacity
- 1.07%
- Rank among battery storage plants in Massachusetts
- #2 of 38
- EIA plant code
- 62844
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| NA | Batteries | 150 MW | 150 MW | 2025 | 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
| Dighton Power Plant | Natural gas | 200 MW |
| Pittsfield Generating LP | Natural gas | 176 MW |
| Exelon Medway LLC | Other | 135 MW |
| Cleary Flood Hybrid | Natural gas | 121 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 150 MW solar plant and a 150 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