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13.9 MW Natural Gas Internal Combustion Engine (11 MW) + Petroleum Liquids (3 MW) out of service in Norfolk, MA — ISO New England Inc.
13.9 MW
Nameplate Capacity
8
Generators
units
Hybrid (2)
Technology
Natural Gas Internal Combustion Engine + Petroleum Liquids
1985
Operating Since
Coordinates
42.2939, -71.3081
County
Norfolk, MA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Wellesley College | — | — |
| Owner(s) | Wellesley College | — | — |
| Status | Out of service | — | — |
The Wellesley College Central Utility Plant, located in Norfolk County, Massachusetts, is a 13.9 MW hybrid power plant primarily fueled by natural gas. The plant also utilizes petroleum liquids. It consists of 8 generators employing natural gas internal combustion engine technology. The plant began operating in 1985 and is owned and operated by Wellesley College.
The plant operates within the ISO New England Inc. balancing authority and the NPCC NERC region. In the most recent year with available data, the plant generated 889 MWh, resulting in a capacity factor of 0.7%. The Wellesley College Central Utility Plant is ranked 23rd out of 37 power plants in Massachusetts and 1381st out of 1963 plants nationally.
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
15.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
Commercial CHP
79 MWh
Latest Month
889 MWh
Annual Generation
0.7%
Capacity Factor
CO₂ Intensity
837 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
18 lb/MWh
SO₂
0.429 lb/MWh
CH₄
0.015 lb/MWh
N₂O
0.001 lb/MWh
Capacity Factor
0.4%
Annual Net Gen
0 GWh
CO₂eq
838 lb/MWh
Subregion
NPCC New England
2013
$965/kW
Est. Construction Cost
Total estimated cost: $13.4M
Market Position
ISO/RTO Market
ISO-NE
LMP Node
—
Pricing Hub
.H.INTERNAL_HUB
Node Source
OSM spatial match
Last updated 2026-03-26
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