108th largest plant in New York · 3734th nationally
Stony Brook Cogen Plant is a natural gas power plant in New York with a nameplate capacity of 47.0 MW. It generates roughly 288.5k MWh per year — enough to power about 27,480 average U.S. homes.
Its capacity factor of 70% puts it in the middle range — running steadily but not full-time. At 716 lb CO₂/MWh, its emission rate sits below the national grid average of roughly 800 lb/MWh.
| Plant Name | Stony Brook Cogen Plant |
|---|---|
| Operator | Nissequoque Cogen Partners |
| City | Stony Brook |
| County | Suffolk County |
| State | New York |
| ZIP | 11794 |
| Coordinates | 40.91683, -73.12906 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| GEN1 | Natural Gas Fired Combustion Turbine | Natural Gas | 47.0 MW | Operating | 1995 |
| CO₂ | 103.2k metric tons |
|---|---|
| SO₂ | 1 metric tons |
| NOₓ | 74 metric tons |
| CO₂ Rate | 716 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
| NERC Region | NPCC |
|---|---|
| Balancing Authority | New York Independent System Operator |
Natural gas plants are the workhorse of the modern grid. Combined-cycle units achieve very high efficiency and can ramp up and down quickly to balance variable renewables. They emit roughly half the CO₂ per MWh of coal and far less of other pollutants, but they still release upstream methane during fuel extraction.