Search
Search plants, projects, owners, and states
Search plants, projects, owners, and states
5 MW Batteries (3 MW) + Solar Photovoltaic (3 MW) operating in Franklin, MA — ISO New England Inc.
5 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2021
Operating Since
Coordinates
42.6366, -72.9005
County
Franklin, MA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Charlemont MA, LLC | Charlemont MA | — |
| Owner(s) | Charlemont MA, LLC | — | — |
| Status | Operating | operating | — |
Charlemont A is a 5 MW hybrid power plant located in Franklin County, Massachusetts. The facility, owned and operated by Charlemont MA, LLC, commenced operations in 2021. It utilizes both solar photovoltaic and battery storage technologies, with MWH listed as the primary fuel type. The plant consists of two generators and features a fixed tilt solar tracking system. Charlemont A is ranked 65th out of 126 power plants in Massachusetts and 975th nationally out of 1205 plants.
The facility includes a 3.8 MWh battery energy storage system (BESS) with a duration of 1.52 hours, utilizing lithium-ion battery chemistry (LIB). In its latest year of operation, Charlemont A generated 3,437 MWh of electricity, resulting in a capacity factor of 7.9%. The plant operates within the ISO New England Inc. balancing authority and is part of the Northeast Power Coordinating Council (NPCC) NERC region.
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
3.4K MWh
Annual Net Energy
7.9%
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.
Data from 2022–2024
$30.2/MWh
Energy Value
$3.0/MWh
Capacity Value
Point of Interconnection
Nearest Substation
Bear Swamp Substation · 230 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.
No news articles linked yet for this plant.
News enrichment runs on demand — we have the pipeline, we just haven't fetched coverage for this plant yet. Request a detailed re-run and we'll add it.
ISO New England Inc. (ISNE)
Grid Voltage
13.8 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP