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7 MW Batteries (2 MW) + Solar Photovoltaic (5 MW) operating in Addison, VT — ISO New England Inc.
7 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2019
Operating Since
Coordinates
44.1334, -73.1441
County
Addison, VT
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Green Mountain Power Corp | Green Mountain Power | — |
| Owner(s) | GMP VT Microgrid LLC | GMP VT Microgrid LLC | — |
| Status | Operating | operating | — |
GEM identifies the owner as GMP VT Microgrid LLC
This entity is not yet in the GEM ownership database — chain unavailable.
The GMP Solar/Storage-Ferrisburgh Hybrid plant is a 7 MW hybrid power plant located in Addison County, Vermont. The plant, which began operating in 2019, is owned and operated by Green Mountain Power Corp. It is the largest of 8 utility-scale solar plants in Vermont, and ranks 920th out of 1205 solar plants nationally. The plant utilizes both solar photovoltaic technology and battery energy storage. The solar component uses single-axis tracking. The battery energy storage system (BESS) has a capacity of 8 MWh and a duration of 4 hours, and uses lithium-ion battery chemistry (LIB).
The plant's primary fuel is listed as "MWH". In its most recent year of operation, the plant generated 8,207 MWh, resulting in a capacity factor of 13.3%. The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. Financial data is available for this plant from LBNL, indicating that further details on costs or power purchase agreement (PPA) pricing may be accessible.
Generated from EIA, GEM, and public data sources
ISO/RTO
ISO-NE
Market
ISO/RTO Member
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
ISO New England Inc. (ISNE)
Grid Voltage
12.47 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
137 MWh
Latest Month
8.2K MWh
Annual Generation
13.3%
Capacity Factor
Data from 2019–2024
$32.0/MWh
Energy Value
$3.5/MWh
Capacity Value
Point of Interconnection
Nearest Substation
New Haven Substation · 345 kV
Substation Distance
2.05 km
Operator
Vermont Electric Power Company
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
LD.NEW_HAVN46
Pricing Hub
.Z.VERMONT
Location Type
NETWORK NODE
Node Source
Curated node match
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