Wading River
Other power plant · Suffolk County, New York
Nameplate capacity
239 MW
Rank in New York
#37
of 1,152 plants
In service since
1989
August 1989
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- National Grid Generation LLC
- County
- Suffolk County
- Generating units
- 3
- Share of state capacity
- 0.53%
- Rank among other plants in New York
- #4 of 99
- EIA plant code
- 7146
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 02 | Petroleum Liquids | 80 MW | 77 MW | 1989 | Operating |
| 03 | Petroleum Liquids | 80 MW | 82 MW | 1989 | Operating |
| 1 | Petroleum Liquids | 80 MW | 82 MW | 1989 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in New York
| Lewiston Niagara | Hydro | 240 MW |
| Bethpage Power Plant | Natural gas | 240 MW |
| Lockport Energy Associates LP | Natural gas | 221 MW |
| Marble River Wind Farm | Wind | 215 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 239 MW solar plant and a 239 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All New York power plants · What New York actually generates