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1.5 MW Batteries (1 MW) + Solar Photovoltaic (1 MW) operating in Plymouth, MA — ISO New England Inc.
1.5 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2024
Operating Since
Coordinates
41.9528, -70.9711
County
Plymouth, MA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Madison Energy Investments LLC | MN8 Energy | — |
| Owner(s) | Madison Energy Investments LLC | — | — |
| Status | Operating | operating | — |
The 20 Bedford power plant is a hybrid solar and battery energy storage system (BESS) located in Plymouth County, Massachusetts. The plant, which began operating in 2024, has a total capacity of 1.5 MW and is owned and operated by Madison Energy Investments LLC. It interconnects to the ISO New England Inc. balancing authority within the Northeast Power Coordinating Council (NPCC) region. The facility ranks 124th in size among Massachusetts power plants and 1160th nationally.
The plant utilizes both solar photovoltaic (PV) and battery storage technologies. The solar array employs a fixed-tilt tracking system. The battery energy storage system has a capacity of 1 MWh and a duration of 1 hour, utilizing lithium-ion battery (LIB) chemistry. The plant consists of two generators. The primary fuel listed is MWH, indicating the plant's reliance on electricity from the grid or on-site generation for charging the batteries.
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: $2.0M
Point of Interconnection
Nearest Substation
Bridgewater Substation · 345 kV
Substation Distance
4.36 km
Operator
National Grid
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
LD.RAYNHAM 13.8
Pricing Hub
.H.INTERNAL_HUB
Location Type
NETWORK NODE
Node Source
Curated node match
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ask pi about 20 BedfordISO New England Inc. (ISNE)
Grid Voltage
12.47 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP