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8.3 MW Batteries (3 MW) + Solar Photovoltaic (5 MW) operating in Worcester, MA — ISO New England Inc.
8.3 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2021
Operating Since
Coordinates
42.4680, -72.0696
County
Worcester, MA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | 147 Williamsville Solar 1, LLC | Williamsville Road | — |
| Owner(s) | 147 Williamsville Solar 1, LLC | — | — |
| Status | Operating | operating | — |
The Williamsville Hybrid CSG is a hybrid power plant located in Worcester County, Massachusetts. The plant, owned and operated by 147 Williamsville Solar 1, LLC, began operating in 2021. It has a total capacity of 8.3 MW, comprised of solar photovoltaic generation paired with battery energy storage. The facility utilizes single-axis tracking for its solar panels. The battery energy storage system (BESS) has a capacity of 6.7 MWh and a duration of 2.03 hours, employing lithium-ion battery chemistry (LIB).
The plant operates within the ISO New England Inc. balancing authority and the NPCC NERC region. In its latest year of operation, the Williamsville Hybrid CSG generated 8,938 MWh, resulting in a capacity factor of 12.3%. The plant is ranked 28th out of 126 power plants in Massachusetts and 872nd out of 1205 nationally. Financial data is available for the plant from LBNL, though specific metrics such as installed cost and PPA price are not provided in this dataset.
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
415 MWh
Latest Month
8.9K MWh
Annual Generation
12.3%
Capacity Factor
Data from 2021–2024
$32.0/MWh
Energy Value
$3.5/MWh
Capacity Value
Point of Interconnection
Nearest Substation
Barre Substation · 115 kV
Substation Distance
< 10 km
Operator
National Grid
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
—
Pricing Hub
.H.INTERNAL_HUB
Node Source
OSM spatial match
Substation identified. Node ID not yet resolved against ISO roster.
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ISO New England Inc. (ISNE)
Grid Voltage
13.8 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP