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4 MW Batteries (2 MW) + Solar Photovoltaic (2 MW) operating in Rutland, VT — ISO New England Inc.
4 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2015
Operating Since
Coordinates
43.6194, -72.9503
County
Rutland, VT
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Green Mountain Power Corp | Green Mountain Power | — |
| Owner(s) | Green Mountain Power Corp | small shareholder(s) | — |
| Status | Operating | operating | — |
Stafford Hill Solar Hybrid is a 4 MW hybrid power plant located in Rutland County, Vermont. The plant, which began operating in 2015, is owned by small shareholder(s) and operated by Green Mountain Power Corp. It utilizes both solar photovoltaic technology and batteries, with two generators on site. The plant's battery energy storage system (BESS) has a capacity of 3.4 MWh and a duration of 1.7 hours, using lithium-ion battery chemistry (LIB). The solar array uses a fixed tilt tracking system. The plant is ranked 7th out of 8 power plants in Vermont, and 1025th out of 1205 nationally.
The plant's primary fuel is listed as MWH. In its latest year of generation data, Stafford Hill Solar Hybrid produced 566 MWh, resulting in a capacity factor of 1.6%. The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. Financial data indicates an installed cost of $6,826.4 per kW, according to FERC data.
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
12.4 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
1 MWh
Net Discharge
566 MWh
Annual Net Energy
1.6%
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.
Data from 2016–2024
$31.4/MWh
Energy Value
$3.1/MWh
Capacity Value
Market Position
ISO/RTO Market
ISO-NE
LMP Node
LD.N_RUTLND46
Pricing Hub
.Z.VERMONT
Location Type
NETWORK NODE
Node Source
Curated node match
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