Green Mountain Storage, LLC
Battery storage power plant · Somerset County, Pennsylvania
Details
- Primary fuel
- Battery storage
- Technology
- Batteries
- Operator
- Green Mountain Storage, LLC
- County
- Somerset County
- Generating units
- 1
- Share of state capacity
- 0.02%
- Rank among battery storage plants in Pennsylvania
- #3 of 4
- EIA plant code
- 55370
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| BGM | Batteries | 10 MW | 10 MW | 2016 | 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 Pennsylvania
| Dart Container Corp | Other | 11 MW |
| Quakertown PA BTM | Other | 11 MW |
| PA Solar Park | Solar | 10 MW |
| PA Solar Park II | Solar | 10 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 10 MW solar plant and a 10 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 Pennsylvania power plants · What Pennsylvania actually generates