242 MW Kerosene operating in Middlesex, CT — ISO New England Inc.
242 MW
Nameplate Capacity
4
Generators
units
Petroleum Liquids
Technology
2011
Operating Since
Coordinates
41.5540, -72.5747
County
Middlesex, CT
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | GenConn Middletown LLC | GenConn Middletown | — |
| Owner(s) | GenConn Middletown LLC | Avangrid | — |
| Status | Operating | — | — |
GenConn Middletown LLC is a 242 MW power plant located in Middlesex County, Connecticut. The plant began operating in 2011 and is owned and operated by GenConn Middletown LLC, a subsidiary of Avangrid. The facility utilizes petroleum liquids (KER) as its primary fuel source and consists of four generators. It is interconnected to the ISO New England Inc. balancing authority within the Northeast Power Coordinating Council (NPCC) region.
In the most recent year of data, the plant generated 5,940 MWh of electricity, resulting in a capacity factor of 0.3%. GenConn Middletown LLC is ranked as the 2nd largest petroleum-fueled plant out of 5 in Connecticut, and 3rd out of 7 nationally. Recent news articles indicate activity related to deals involving the plant.
Generated from EIA, GEM, and public data sources
NERC Region
NPCC
Balancing Authority
ISO New England Inc.
Grid Voltage
345 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
744 MWh
Latest Month
5.9K MWh
Annual Generation
0.3%
Capacity Factor
No financial data available for this plant.
Point of Interconnection
Nearest Substation
Middletown Substation · 115 kV
Substation Distance
< 10 km
Operator
Eversource
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
UN.LAUREL 13.8MI12
Pricing Hub
.Z.CONNECTICUT
Node Source
EIA-860 direct report
Last updated 2026-03-26
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