Wallingford Energy — Plant Summary
- EIA Plant ID
- 55517
- Capacity
- 350 MW
- Primary Fuel
- Natural Gas
- Technology
- Natural Gas Fired Combustion Turbine
- Status
- Operating
- Location
- New Haven, CT
- Operating Since
- 2001
- Generators
- 7
- Operator
- Wallingford Energy LLC
- Parent Company
- LS Power Development
- Annual Generation
- 87,775.01 MWh
- Capacity Factor
- 2.8%
- Balancing Authority
- ISO New England Inc.
- ISO/RTO
- ISONE
- NERC Region
- NPCC
Wallingford Energy
OperatingNatural Gas
Ranked #7 of 48 Natural Gas plants in CT#594 of 2009 nationally
350 MW Natural Gas operating in New Haven, CT — ISO New England Inc.
EIAWD
350 MW
Nameplate Capacity
7
Generators
units
Natural Gas Fired Combustion Turbine
Technology
2001
Operating Since
Location
Coordinates
41.4487, -72.8354
County
New Haven, CT
Nearby Plants
- A L PierceNatural Gas84 MW · 0.1 km
- Wallingford SolarSolar16.1 MW · 1.0 km
- Amazon BDL3 Solar ProjectSolar1 MW · 1.2 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Wallingford Energy LLC | Wallingford Energy | — |
| Owner(s) | Wallingford Energy LLC | LS Power Development | — |
| Status | Operating | — | — |
Ownership Chain
About
Wallingford Energy is a 350 MW natural gas-fired power plant located in New Haven County, Connecticut. The plant began operating in 2001 and consists of seven natural gas-fired combustion turbine generators. It is owned by LS Power Development and operated by Wallingford Energy LLC. The plant is located 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, Wallingford Energy generated 87,775 MWh of electricity, achieving a capacity factor of 2.8%. Wallingford Energy ranks as the 8th largest power plant in Connecticut out of 8 total plants, and 596th nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
NPCC
Balancing Authority
ISO New England Inc.
Grid Voltage
115 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
2.5K MWh
Latest Month
87.8K MWh
Annual Generation
2.8%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
Wallingford Substation · 115 kV
Substation Distance
< 10 km
Operator
Wallingford Electric Department
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
UN.WALNGFRD13.8WAL1
Pricing Hub
.Z.CONNECTICUT
Node Source
EIA-860 direct report
News & Articles (10)Beta
General
Wind Energy
We deliver advisory services and engineering solutions for onshore and offshore wind energy powered by global expertise and local insight.
WSP·7 years ago
General
Wind Energy
We deliver advisory services and engineering solutions for onshore and offshore wind energy powered by global expertise and local insight.
WSP·7 years ago
Industry·technology
Wind Energy
We deliver advisory services and engineering solutions for onshore and offshore wind energy powered by global expertise and local insight.
WSP·7 years ago
General
Wind Energy
We deliver advisory services and engineering solutions for onshore and offshore wind energy powered by global expertise and local insight.
WSP·7 years ago
Last updated 2026-03-14
View all 10 articles