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6.5 MW Batteries (2 MW) + Solar Photovoltaic (5 MW) operating in Chittenden, VT — ISO New England Inc.
6.5 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2019
Operating Since
Coordinates
44.2859, -73.0234
County
Chittenden, 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-Essex Hybrid plant is a 6.5 MW hybrid power plant located in Chittenden County, Vermont. It began operating in 2019 and is owned and operated by Green Mountain Power Corp. The plant utilizes both solar photovoltaic and battery storage technologies, with two generators on site. The battery energy storage system (BESS) has a capacity of 8 MWh and a duration of 4 hours, utilizing lithium-ion battery chemistry (LIB). The solar array uses a fixed-tilt tracking system.
The plant's primary fuel source is listed as MWH. In its most recent year of operation, the plant generated 6,744 MWh, resulting in a capacity factor of 11.8%. GMP Solar/Storage-Essex Hybrid is the 3rd largest of 8 utility-scale solar plants in Vermont, and ranks 924th out of 1205 nationally. The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region.
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
34.5 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
58 MWh
Latest Month
6.7K MWh
Annual Generation
11.8%
Capacity Factor
Data from 2020–2024
$31.9/MWh
Energy Value
$3.1/MWh
Capacity Value
Market Position
ISO/RTO Market
ISO-NE
LMP Node
—
Pricing Hub
.Z.VERMONT
Node Source
OSM spatial match
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