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4.8 MW Batteries (2 MW) + Solar Photovoltaic (3 MW) operating in Essex, MA — ISO New England Inc.
4.8 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2021
Operating Since
Coordinates
42.7528, -71.0469
County
Essex, MA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Kearsarge Haverhill LLC | Kearsarge Haverhill | — |
| Owner(s) | Kearsarge Haverhill LLC | — | — |
| Status | Operating | operating | — |
Kearsarge Haverhill is a hybrid power plant located in Essex County, Massachusetts. The facility, owned and operated by Kearsarge Haverhill LLC, began operating in 2021. It has a total capacity of 4.8 MW derived from two generators utilizing both solar photovoltaic and battery storage technologies. The plant's battery energy storage system (BESS) has a capacity of 9 MWh and a duration of 4.5 hours, employing lithium-ion battery chemistry. The solar array uses a fixed-tilt tracking system.
The plant's latest annual generation was 4,028 MWh, resulting in a capacity factor of 9.6%. Kearsarge Haverhill operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. It is ranked as the 76th largest power plant in Massachusetts out of 126, and nationally it is ranked 1000th out of 1205. The plant's primary fuel type is listed as MWH, reflecting its hybrid nature and reliance on stored energy.
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
163 MWh
Latest Month
4.0K MWh
Annual Generation
9.6%
Capacity Factor
Data from 2022–2024
$31.1/MWh
Energy Value
$4.0/MWh
Capacity Value
Point of Interconnection
Nearest Substation
Water Street #31 Substation
Substation Distance
3.385 km
Operator
National Grid
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
LD.KING_ST 23
Pricing Hub
.H.INTERNAL_HUB
Location Type
NETWORK NODE
Node Source
Curated node match
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ISO New England Inc. (ISNE)
Grid Voltage
23.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP