Wading River
Oil power plant in Suffolk County, New York. 238.5 MW of nameplate capacity across 3 generators, operated by National Grid Generation LLC.
Also known as Wading River Power Plant · EIA plant 7146
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 238.5 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- August 1989First generator online
- Operator
- National Grid Generation LLCEIA operator ID 56505
- Grid
- NYISOBalancing authority NYIS
- Price nodes
- 3 NYISO nodesResource nodes with prices
- Location
- Suffolk County, NY40.9569, −72.8774
- EIA plant ID
- 7146EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Wading River produces
Free · EIA-923Net generation, 2025
16.8 GWh
16,811 MWh, final
Capacity factor, 2025
0.8%
2024: 0.3%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
5.7–36.5
GWh a year. Low 2017, high 2020
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 317,466 | Not reported | 12 of 12 |
| 2001 | 410,054 | Not reported | 12 of 12 |
| 2002 | 282,302 | Not reported | 12 of 12 |
| 2003 | 296,603 | Not reported | 12 of 12 |
| 2004 | 185,918 | Not reported | 12 of 12 |
| 2005 | 156,228 | Not reported | 12 of 12 |
| 2006 | 55,669 | Not reported | 12 of 12 |
| 2007 | 99,907 | Not reported | 12 of 12 |
| 2008 | 93,167 | Not reported | 12 of 12 |
| 2009 | 44,597 | Not reported | 12 of 12 |
| 2010 | 65,190 | 3.1% | 12 of 12 |
| 2011 | 34,979 | Not reported | 12 of 12 |
| 2012 | 53,278 | Not reported | 12 of 12 |
| 2013 | 42,982 | 2.1% | 12 of 12 |
| 2014 | 30,715 | 1.5% | 12 of 12 |
| 2015 | 16,323 | 0.8% | 12 of 12 |
| 2016 | 22,972 | 1.1% | 12 of 12 |
| 2017 | 5,721 | 0.3% | 12 of 12 |
| 2018 | 12,886 | 0.6% | 12 of 12 |
| 2019 | 10,763 | 0.5% | 12 of 12 |
| 2020 | 36,483 | 1.7% | 12 of 12 |
| 2021 | 28,318 | 1.4% | 12 of 12 |
| 2022 | 20,313 | 1.0% | 12 of 12 |
| 2023 | 12,663 | 0.6% | 12 of 12 |
| 2024 | 6,071 | 0.3% | 12 of 12 |
| 2025 | 16,811 | 0.8% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · NYISOEmissions
Free · EPA CAMPDCO₂, 2025
19,692
US short tons. 2024: 8,146
SO₂, 2025
0
US short tons
NOx, 2025
32
US short tons
CO₂ per MWh, calculated
1.17 t
About 2,343 lb per MWh
3 of 3 EPA units reported CO₂ in 2025 (UGT007, UGT008, UGT009), matched to EIA plant 7146 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Petroleum Liquids | 79.5 | August 1989 |
| 02 | Petroleum Liquids | 79.5 | August 1989 |
| 03 | Petroleum Liquids | 79.5 | August 1989 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists National Grid Generation LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Wading River
More plants operated by National Grid Generation LLC
Questions about Wading River
How much power does Wading River produce?
Wading River reported 16,811 MWh (16.8 GWh) of net generation in 2025, a 0.8% capacity factor on 238.5 MW of nameplate capacity.
Where is Wading River?
Wading River is in Suffolk County, New York, at 40.9569, −72.8774. It is in the New York Independent System Operator balancing area (NYIS).
Who operates Wading River?
EIA-860M for August 2026 lists National Grid Generation LLC as the operator (EIA operator ID 56505). The operator is not always the owner.
When did Wading River start operating?
Its first generator began operating in August 1989, according to EIA-860M.
Does InfraMap have power prices for Wading River?
Yes. InfraMap has NYISO day-ahead and real-time prices at 3 price nodes linked to Wading River, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- NYISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page