Search
Search plants, projects, owners, and states
Search plants, projects, owners, and states
135 MW Distillate Oil operating in Norfolk, MA
135 MW
Nameplate Capacity
3
Generators
units
Petroleum Liquids
Technology
1970
Operating Since
Coordinates
42.1398, -71.4461
County
Norfolk, MA
Nearby Plants
Forward-looking, asset-specific exposure analytics combining climate hazards, generation variability, and counterparty risk into a single decision-grade view. Powered by InfraRisk.
See the full risk decomposition + scenarios for this asset.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Constellation Power, Inc | Constellation Power | — |
| Owner(s) | Constellation Power, Inc | Constellation Energy | — |
| Status | Operating | — | — |
Exelon Medway LLC is a 135 MW petroleum liquid-fueled power plant located in Norfolk County, Massachusetts. The plant began operating in 1970 and consists of three generators utilizing petroleum liquid technology. It is owned by Constellation Energy and operated by Constellation Power, Inc. The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region.
In the most recent year of reported data, Exelon Medway LLC generated 1,985 MWh of electricity, resulting in a capacity factor of 0.2%. The plant's relatively low output contributes to its ranking as the second-largest of two petroleum liquid plants in Massachusetts, and 48th out of 60 similar 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
230.0 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.
764 MWh
Latest Month
2.0K MWh
Annual Generation
0.2%
Capacity Factor
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
See the full forecast + scenario decomposition for this asset.
CO₂ Intensity
5295 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
16 lb/MWh
SO₂
0.000 lb/MWh
CH₄
0.129 lb/MWh
N₂O
0.026 lb/MWh
Capacity Factor
0.3%
Annual Net Gen
4 GWh
CO₂eq
5306 lb/MWh
Subregion
NPCC New England
2013
$765/kW
Est. Construction Cost
Total estimated cost: $103.2M
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this asset.
Point of Interconnection
Nearest Substation
Medway Substation No. 446 · 345 kV
Substation Distance
< 10 km
Operator
Eversource
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
UN.W_MEDWAY13.8WMJ1
Pricing Hub
.H.INTERNAL_HUB
Location Type
NETWORK NODE
Node Source
EIA-860 direct report
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 2026-03-26
View all articlesForward forecasts, scenario decomposition, and risk-decision tooling for this asset.