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9.5 MW Batteries (5 MW) + Solar Photovoltaic (5 MW) operating in Plymouth, MA — ISO New England Inc.
9.5 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2023
Operating Since
Coordinates
41.7963, -70.8273
County
Plymouth, MA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Agilitas Energy, Inc. | Agilitas Energy | — |
| Owner(s) | Old Middleboro Road Solar, LLC | Old Middleboro Road Solar LLC | — |
| Status | Operating | operating | — |
GEM identifies the owner as Old Middleboro Road Solar LLC
This entity is not yet in the GEM ownership database — chain unavailable.
Old Middleboro Road Solar is a 9.5 MW hybrid power plant located in Plymouth County, Massachusetts. The facility, which began operating in 2023, is owned and operated by Agilitas Energy, Inc. The plant utilizes both solar photovoltaic technology and battery storage. It consists of two generators and features single-axis solar tracking. The battery energy storage system (BESS) has a capacity of 13.4 MWh and a duration of approximately 2.98 hours, employing lithium-ion battery chemistry (LIB).
The plant's primary fuel source is listed as MWH, indicating its reliance on electricity generated from solar. In its latest year of operation, Old Middleboro Road Solar generated 10,859 MWh, achieving a capacity factor of 13.0%. The plant operates within the ISO New England Inc. balancing authority and the NPCC NERC region. According to available data, Old Middleboro Road Solar ranks as the 11th largest solar facility out of 126 in Massachusetts, and 852nd out of 1205 nationally. Financial data is available for the plant from sources such as Lawrence Berkeley National Laboratory (LBNL).
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
492 MWh
Latest Month
10.9K MWh
Annual Generation
13.0%
Capacity Factor
Data from 2023–2024
$31.9/MWh
Energy Value
$3.7/MWh
Capacity Value
Point of Interconnection
Nearest Substation
SEMASS Substation · 115 kV
Substation Distance
< 10 km
Operator
Eversource
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
—
Pricing Hub
.H.INTERNAL_HUB
Node Source
Shared substation inference
Substation identified. Node ID not yet resolved against ISO roster.
No news articles linked yet for this plant.
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ISO New England Inc. (ISNE)
Grid Voltage
13.2 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP