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22.9 MW Hydro operating in Middlesex, MA — ISO New England Inc.
22.9 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1985
Operating Since
Coordinates
42.6522, -71.3223
County
Middlesex, MA
Nearby Plants
| 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
6.2K MWh
Latest Month
27.5K MWh
Annual Generation
13.6%
Capacity Factor
2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $52.5M
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
Last updated 2026-04-06
View all articlesISO New England Inc. (ISNE)
Grid Voltage
23.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP