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8 MW Batteries (3 MW) + Solar Photovoltaic (5 MW) operating in Barnstable, MA
8 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2021
Operating Since
Coordinates
41.6633, -70.3989
County
Barnstable, MA
Nearby Plants
Forward-looking, asset-specific exposure analytics combining climate hazards, generation variability, and counterparty risk into a single decision-grade view. Powered by InfraRisk.
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | SoCore Energy LLC | — | — |
| Owner(s) | SoCore Energy LLC | — | — |
| Status | Operating | operating | — |
Marston Mills Solar is a 5 MW solar photovoltaic power plant located in Barnstable County, Massachusetts. The plant began operating in 2021 and is owned and operated by SoCore Energy LLC. It consists of a single generator utilizing fixed-tilt solar tracking technology. The plant is connected to the ISO New England Inc. balancing authority and is within the Northeast Power Coordinating Council (NPCC) NERC region.
In its most recent year of operation, Marston Mills Solar generated 5,703 MWh of electricity, achieving a capacity factor of 13.0%. The plant is the 21st largest solar facility in Massachusetts out of 435, and ranks 2531st nationally out of 7108 solar plants. The plant's primary fuel source is solar energy.
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
ISO New England Inc. (ISNE)
Grid Voltage
20.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
226 MWh
Latest Month
5.7K MWh
Annual Generation
13.0%
Capacity Factor
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2021
$1,796/kW
Est. Construction Cost
Total estimated cost: $14.4M
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Market Position
ISO/RTO Market
ISO-NE
LMP Node
LD.OAK_ST 23
Pricing Hub
.H.INTERNAL_HUB
Location Type
NETWORK NODE
Node Source
Curated node match
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
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