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2 MW Batteries (1 MW) + Solar Photovoltaic (1 MW) operating in Plymouth, MA — ISO New England Inc.
2 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2024
Operating Since
Coordinates
42.1094, -70.8658
County
Plymouth, MA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Madison Energy Investments LLC | — | — |
| Owner(s) | Madison Energy Investments LLC | — | — |
| Status | Operating | — | — |
342 Circuit is a hybrid power plant located in Plymouth County, Massachusetts. The facility, owned and operated by Madison Energy Investments LLC, began operating in 2024. It has a total capacity of 2 MW and utilizes both solar photovoltaic and battery storage technologies. The plant consists of two generators and its primary fuel source is electricity (MWH). The battery energy storage system (BESS) has a storage capacity of 1.1 MWh and a duration of 1.1 hours, utilizing lithium-ion battery chemistry (LIB). The solar array uses a fixed tilt tracking system.
342 Circuit operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. In terms of size, the plant ranks 114th out of 126 power plants in Massachusetts and 1110th out of 1205 plants nationally.
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
0 MWh
Net Discharge
0 MWh
Annual Net Energy
0.0%
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.
2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $2.7M
Point of Interconnection
Nearest Substation
Phillips Lane Substation · 115 kV
Substation Distance
0.69 km
Operator
National Grid
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
LD.PHILP_LN13.8
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
13.8 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP