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22.9 MW Hydro operating in Middlesex, MA
22.9 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1985
Operating Since
Coordinates
42.6522, -71.3223
County
Middlesex, MA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Boott Hydro, LLC - Hybrid | — | — |
| Owner(s) | Boott Hydro, LLC - Hybrid | — | — |
| Status | Operating | — | — |
Boott Hydropower is a 22.9 MW hydroelectric power plant located in Middlesex County, Massachusetts. The plant, which began operating in 1985, utilizes conventional hydroelectric technology and consists of three generators. It is owned and operated by Boott Hydro, LLC - Hybrid. Boott Hydropower is connected to the ISO New England Inc. balancing authority and is situated within the NPCC NERC region.
In the most recent year with available data, Boott Hydropower generated 27,522 MWh of electricity, achieving a capacity factor of 13.6%. The plant is ranked as the 6th largest out of 31 hydroelectric facilities in Massachusetts, and it holds a national ranking of 460 out of 1464 similar plants.
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
23.0 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.
6.2K MWh
Latest Month
27.5K MWh
Annual Generation
13.6%
Capacity Factor
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2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $52.5M
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Market Position
ISO/RTO Market
ISO-NE
LMP Node
LD.PERRY_ST13.8
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.
Last updated 2026-04-06
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