Green Mountain Storage, LLC
Battery storage project in Somerset County, Pennsylvania. 10.4 MW of nameplate capacity across 1 generator, operated by Green Mountain Storage, LLC.
Also known as Green Mountain Storage · EIA plant 55370
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 10.4 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- May 2016First generator online
- Operator
- Green Mountain Storage, LLCEIA operator ID 6862
- Grid
- PJMBalancing authority PJM
- Price nodes
- 1 PJM nodeResource nodes with prices
- Location
- Somerset County, PA39.8514, −79.0706
- EIA plant ID
- 55370EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Green Mountain Storage produces
Free · EIA-923Net generation, 2025
−394 MWh
−394 MWh, final
Battery discharge, 2025
0 MWh
Charge 394 MWh
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2017 to 2025
−4.6–−0.4
GWh a year. Low 2017, high 2025
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | 11,174 | Not reported | 12 of 12 |
| 2002 | 0 | Not reported | 12 of 12 |
| 2003 | 2,206 | Not reported | 12 of 12 |
| 2004 | 10,410 | Not reported | 12 of 12 |
| 2005 | 7,691 | Not reported | 12 of 12 |
| 2006 | 9,368 | Not reported | 12 of 12 |
| 2007 | 7,694 | Not reported | 12 of 12 |
| 2008 | 8,299 | Not reported | 12 of 12 |
| 2009 | 7,809 | Not reported | 12 of 12 |
| 2010 | 9,338 | 10.2% | 12 of 12 |
| 2011 | 9,831 | 10.8% | 12 of 12 |
| 2012 | 7,161 | 7.8% | 12 of 12 |
| 2013 | 6,026 | 6.6% | 12 of 12 |
| 2014 | 5,364 | 5.9% | 12 of 12 |
| 2015 | 4,810 | Not reported | 11 of 12 |
| 2016 | −932 | Not reported | 8 of 12 |
| 2017 | −4,562 | Not reported | 12 of 12 |
| 2018 | −2,767 | Not reported | 12 of 12 |
| 2019 | −1,930 | Not reported | 12 of 12 |
| 2020 | −2,895 | Not reported | 12 of 12 |
| 2021 | −3,063 | Not reported | 12 of 12 |
| 2022 | −2,888 | Not reported | 12 of 12 |
| 2023 | −2,317 | Not reported | 12 of 12 |
| 2024 | −751 | Not reported | 12 of 12 |
| 2025 | −394 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Battery plants can report negative net generation, when charging uses more energy than they discharge.
Power prices and basis
Free account · PJMEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| BGM | Batteries | 10.4 | May 2016 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Green Mountain Storage, LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Questions about Green Mountain Storage
How much power does Green Mountain Storage, LLC produce?
Green Mountain Storage, LLC reported −394 MWh (−394 MWh) of net generation in 2025.
Where is Green Mountain Storage, LLC?
Green Mountain Storage, LLC is in Somerset County, Pennsylvania, at 39.8514, −79.0706. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates Green Mountain Storage, LLC?
EIA-860M for August 2026 lists Green Mountain Storage, LLC as the operator (EIA operator ID 6862). The operator is not always the owner.
When did Green Mountain Storage, LLC start operating?
Its first generator began operating in May 2016, according to EIA-860M.
Does InfraMap have power prices for Green Mountain Storage, LLC?
Yes. InfraMap has PJM day-ahead and real-time prices at 1 price node linked to Green Mountain Storage, LLC, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- PJM day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page