Stony Brook — Plant Summary
- EIA Plant ID
- 6081
- Capacity
- 541.5 MW
- Primary Fuel
- Oil
- Technology
- Petroleum Liquids, Solar Photovoltaic
- Status
- Operating
- Location
- Hampden, MA
- Operating Since
- 1981
- Generators
- 10
- Operator
- Massachusetts Mun Wholes Electric Co
- Parent Company
- small shareholder(s)
- Annual Generation
- 103,956 MWh
- Capacity Factor
- 2.2%
- Balancing Authority
- ISO New England Inc.
- ISO/RTO
- ISONE
- NERC Region
- NPCC
Stony Brook
OperatingDistillate OilSolarHybrid
Ranked #1 of 15 Distillate Oil plants in MA#6 of 827 nationally
541.5 MW Petroleum Liquids (535 MW) + Solar Photovoltaic (7 MW) operating in Hampden, MA — ISO New England Inc.
EIAGEMWD
541.5 MW
Nameplate Capacity
10
Generators
units
Hybrid (2)
Technology
Petroleum Liquids + Solar Photovoltaic
1981
Operating Since
Location
Coordinates
42.1978, -72.5106
County
Hampden, MA
Nearby Plants
- Kearsarge Ludlow LLCSolar3.7 MW · 1.6 km
- Ludlow LandfillSolar2.3 MW · 1.8 km
- ChicopeeSolar2 MW · 2.2 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Massachusetts Mun Wholes Electric Co | Massachusetts Municipal Wholesale Electric Company | — |
| Owner(s) | Green Mountain Power Corp, Massachusetts Mun Wholes Electric Co, The Town of Lyndon Electric Department | small shareholder(s) | — |
| Status | Operating | operating | — |
Ownership Chain
About
The Stony Brook Power Plant is a petroleum-fired power station located in Ludlow, MA on a 350-acre site.
Read more on WikipediaThe Stony Brook power plant, located in Hampden County, Massachusetts, is a hybrid facility with a total capacity of 541.5 MW. The plant's primary fuel is Distillate Fuel Oil (DFO), but it also incorporates solar photovoltaic technology. Stony Brook consists of 10 generators and began operating in 1981. The plant is owned by small shareholder(s) and operated by Massachusetts Municipal Wholesale Electric Company.
Stony Brook operates within the ISO New England Inc. balancing authority and the NPCC NERC region. The plant's latest annual generation was 103,956 MWh, resulting in a capacity factor of 2.2%. The solar component utilizes a fixed tilt tracking system. Financial data is available for the plant from LBNL Solar. Stony Brook is ranked as 1 of 2 similar plants in Massachusetts and 20 of 60 nationally.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
NPCC
Balancing Authority
ISO New England Inc.
Grid Voltage
345 kV
Regulatory Status
RE
Entity Type
Political Subdivision
Sector
Electric Utility
Generation
2.6K MWh
Latest Month
104.0K MWh
Annual Generation
2.2%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: LBNL Utility-Scale SolarHIGH
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
Stony Brook Substation · 115 kV
Substation Distance
< 10 km
Operator
Massachusetts Municipal Wholesale Electric Company
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
UN.STONTBRK13.2ST2A
Pricing Hub
.H.INTERNAL_HUB
Node Source
EIA-860 direct report
News & Articles (10)Beta
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