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1.8 MW Batteries (1 MW) + Solar Photovoltaic (1 MW) operating in Norfolk, MA — ISO New England Inc.
1.8 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2023
Operating Since
Coordinates
42.0485, -71.3908
County
Norfolk, MA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Kearsarge Upper Union LLC | Kearsarge Upper Union | — |
| Owner(s) | Kearsarge Upper Union LLC | — | — |
| Status | Operating | operating | — |
Kearsarge Upper Union is a hybrid power plant located in Norfolk County, Massachusetts. The facility, owned and operated by Kearsarge Upper Union LLC, began operation in 2023. It has a total capacity of 1.8 MW derived from solar photovoltaic generation coupled with battery energy storage. The plant utilizes two generators and is tracked as the 119th largest power plant in Massachusetts, and 1146th nationally.
The plant's battery energy storage system (BESS) has a capacity of 3.9 MWh, with a duration of 4.88 hours and uses lithium-ion battery (LIB) chemistry. The solar array uses a fixed-tilt tracking system. In its latest year of operation, Kearsarge Upper Union generated 1,637 MWh of electricity, resulting in a capacity factor of 10.4%. The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. The plant's primary fuel is reported as MWH, reflecting its hybrid nature.
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
65 MWh
Latest Month
1.6K MWh
Annual Generation
10.4%
Capacity Factor
Data from 2024
$31.7/MWh
Energy Value
$3.5/MWh
Capacity Value
Point of Interconnection
Nearest Substation
Union Street Substation · 115 kV
Substation Distance
1.191 km
Operator
National Grid
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
LD.UNION_ST13.8
Pricing Hub
.H.INTERNAL_HUB
Location Type
NETWORK NODE
Node Source
Curated node match
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ask pi about Kearsarge Upper UnionISO New England Inc. (ISNE)
Grid Voltage
23.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP