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5 MW BESS operating in Middlesex, MA
5 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2019
Operating Since
Coordinates
42.5676, -71.0981
County
Middlesex, MA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Minuteman Energy Storage, LLC | — | — |
| Owner(s) | Minuteman Energy Storage, LLC | — | — |
| Status | Operating | — | — |
Minuteman Energy Storage is a 5 MW battery energy storage system located in Middlesex County, Massachusetts. The plant began operating in 2019 and is owned and operated by Minuteman Energy Storage, LLC. It consists of a single generator utilizing battery technology, with a total storage capacity of 10 MWh. The battery system has a duration of 2 hours and uses lithium-ion battery (LIB) chemistry.
The facility operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. Minuteman Energy Storage is ranked as the 72nd largest power plant in Massachusetts out of 126, and nationally it is ranked 988th out of 1205. The plant's primary fuel is listed as "MWH," indicating that it draws power from the grid to charge its 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
ISO New England Inc. (ISNE)
Grid Voltage
13.8 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.
−16 MWh
Net Charging
-156 MWh
Annual Net Energy
-0.4%
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.
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2019
$2,973/kW
Est. Construction Cost
Total estimated cost: $14.9M
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Point of Interconnection
Nearest Substation
North Reading Substation · 115 kV
Substation Distance
0.061 km
Operator
Reading Municipal Light Department
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
LD.N_READNG13.8
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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