Search
Search plants, projects, owners, and states
Search plants, projects, owners, and states
4 MW Batteries (2 MW) + Solar Photovoltaic (2 MW) operating in Franklin, MA — ISO New England Inc.
4 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2022
Operating Since
Coordinates
42.4940, -72.6225
County
Franklin, MA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Old Frontier Solar III PV, LLC | — | — |
| Owner(s) | Old Frontier Solar III PV, LLC | — | — |
| Status | Operating | operating | — |
Old Frontier Solar III is a 4 MW hybrid power plant located in Franklin County, Massachusetts. The facility, which began operating in 2022, is owned and operated by Old Frontier Solar III PV, LLC. The plant utilizes both solar photovoltaic technology and battery energy storage. It consists of two generators and features single-axis solar tracking. The battery energy storage system (BESS) has a capacity of 2.2 MWh and a duration of 1.1 hours, employing lithium-ion battery chemistry (LIB).
The plant's primary fuel source is listed as "MWH" in the data, which likely refers to the solar energy input. In its most recent year of operation, Old Frontier Solar III generated 4,089 MWh of electricity, resulting in a capacity factor of 11.6%. The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. In terms of size, Old Frontier Solar III ranks as the 85th largest power plant in Massachusetts out of 126, and 1036th nationally out of 1205.
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
131 MWh
Net Discharge
4.1K MWh
Annual Net Energy
11.6%
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 2023–2024
$30.6/MWh
Energy Value
$2.7/MWh
Capacity Value
Point of Interconnection
Nearest Substation
Cumberland Substation · 115 kV
Substation Distance
2.705 km
Operator
Eversource
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
LD.LOWRDFLD69
Pricing Hub
.H.INTERNAL_HUB
Location Type
NETWORK NODE
Node Source
Curated node match
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