Wading River — Plant Summary
- EIA Plant ID
- 7146
- Capacity
- 238.5 MW
- Primary Fuel
- Oil
- Technology
- Petroleum Liquids
- Status
- Operating
- Location
- Suffolk, NY
- Operating Since
- 1989
- Generators
- 3
- Operator
- National Grid Generation LLC
- Parent Company
- National Grid
- Annual Generation
- 6,071 MWh
- Capacity Factor
- 0.3%
- Balancing Authority
- New York Independent System Operator
- ISO/RTO
- NYISO
- NERC Region
- NPCC
Wading River
OperatingDistillate Oil
Ranked #2 of 65 Distillate Oil plants in NY#13 of 827 nationally
238.5 MW Distillate Oil operating in Suffolk, NY — New York Independent System Operator
EIAWD
238.5 MW
Nameplate Capacity
3
Generators
units
Petroleum Liquids
Technology
1989
Operating Since
Location
Coordinates
40.9569, -72.8774
County
Suffolk, NY
Nearby Plants
- KCE NY 31, LLCBESS50 MW · 0.9 km
- Shoreham Energy LLCKerosene100 MW · 1.0 km
- ShorehamDistillate Oil71.5 MW · 1.1 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | National Grid Generation LLC | National Grid Generation | — |
| Owner(s) | National Grid Generation LLC | National Grid | — |
| Status | Operating | — | — |
Ownership Chain
About
Wading River is a 238.5 MW petroleum-fueled power plant located in Suffolk County, New York. The plant began operating in 1989 and consists of 3 generators utilizing petroleum liquids technology. It is owned by National Grid, a company based in the United Kingdom, and operated by National Grid Generation LLC. The plant operates within the New York Independent System Operator (NYISO) balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region.
In the most recent year with available data, Wading River generated 6,071 MWh of electricity, resulting in a capacity factor of 0.3%. According to available rankings, the plant is the second-largest of three petroleum-fueled plants in New York and ranks 33rd out of 60 similar plants nationally. Financial data indicates an installed cost of $410.68 per kW, based on FERC filings.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
NPCC
Balancing Authority
New York Independent System Operator
Grid Voltage
138 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
1.7K MWh
Latest Month
6.1K MWh
Annual Generation
0.3%
Capacity Factor
Jan 2022 – Dec 2024
Financial DataBeta
Source: FERC Form 1HIGH
$547/kW
Installed Cost
$486.7/MWh
Operating Cost
National Grid Generation LLC
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
WADING RIVER_IC_2
Substation Distance
< 10 km
Coord Source
NYISO direct
Market Position
ISO/RTO Market
NYISO
LMP Node
23547
Pricing Hub
NYISO Zone K
Node Source
EIA-860 direct report
News & Articles (10)Beta
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Last updated 2026-03-25
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