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10.4 MW BESS operating in Somerset, PA
10.4 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2016
Operating Since
Coordinates
39.8514, -79.0706
County
Somerset, PA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Green Mountain Storage, LLC | — | — |
| Owner(s) | Green Mountain Storage, LLC | — | — |
| Status | Operating | — | — |
The Green Mountain Wind Energy Center was a wind power plant near Garrett, Somerset County, Pennsylvania with eight Nordex 1.3 MW turbines that began commercial operation in May 2000. This was the first commercial wind farm constructed in Pennsylvania. The wind farm had a combined total nameplate capacity of 10.4 MW and the potential to produce about 27,000 megawatt-hours of electricity annually, enough to power 3,300 homes, assuming a 30% capacity factor. The wind farm was developed by National Wind Power of the UK, now part of NPower Renewables, operated by NextEra Energy Resources, based in Florida. Energy from the wind farm was purchased and sold by Green Mountain Energy based in Texas, and was the first commercial wind farm for Green Mountain Energy. In 2016 the wind farm was dismantled and replaced with new battery technology.
Read more on WikipediaGreen Mountain Storage, LLC is a 10.4 MW battery energy storage system (BESS) located in Somerset County, Pennsylvania. The facility, which began operating in 2016, is owned and operated by Green Mountain Storage, LLC. It utilizes one generator and has a total energy storage capacity of 10.4 MWh, providing a duration of 1 hour. The battery chemistry is lithium-ion (LIB). The plant's primary fuel is electricity (MWH).
The Green Mountain Storage facility operates within the PJM Interconnection, LLC balancing authority and the RFC NERC region. It is ranked as the 3rd largest of 4 battery storage plants in Pennsylvania, and 739th out of 1205 nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
PJM
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
PJM Interconnection, LLC (PJM)
Grid Voltage
25.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
−29 MWh
Net Charging
-751 MWh
Annual Net Energy
-0.8%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
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2016
$1,763/kW
Est. Construction Cost
Total estimated cost: $18.3M
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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Point of Interconnection
Nearest Substation
Bigby Substation · 115 kV
Substation Distance
0.831 km
Operator
Penelec
Coord Source
OSM spatial
Market Position
ISO/RTO Market
PJM
LMP Node
ARNOLDRE25 KV GRENMTBS
Pricing Hub
WESTERN HUB
Location Type
Generation Node
Node Source
Curated node match
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
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