New York power

Produced 2.6 gigawatt-hours of electricity in 2024 — enough electricity for about 260 homes for a year.*

Air quality & health in Nassau County

Nassau County has a population of 1,381,715. Across five conditions the American Lung Association tracks — childhood asthma, adult asthma, COPD, lung cancer, and cardiovascular disease — it reports a combined 287,550 cases in the county.

Federal monitoring recorded 1 days of good air quality and 0 moderate days in the county over the most recent year, with 0 days rated unhealthy for sensitive groups.

Long-term exposure to air pollution has been linked to certain health conditions, particularly for children and older adults. Where electricity comes from affects how much combustion pollution is produced on the grid.

These figures describe the county as a whole and are not specific to this facility. Sources: American Lung Association – State of the Air (New York); U.S. EPA Air Quality Index.

The story behind this New York power plant

Of New York’s 46 oil-fired plants, Glenwood in Glenwood Landing ranks #7 by the electricity it produced in 2024. It has run since 1972, drawing water from Hempstead Harbor and burning distillate fuel oil, a light, refined petroleum fuel.

Its two generators have a combined capacity of 110.0 MW, a megawatt (MW) being a measure of how much power a plant can deliver at once. In 2024 it produced 2.6 gigawatt-hours, a gigawatt-hour being a unit of electricity over time, which is about 260 homes’ yearly use. National Grid Generation LLC owns it, and it serves PSEG Long Island’s grid.

Generation profile

The plant can produce 110 megawatts of electricity at once, across 2 generating units. In 2024 it produced 2.6 gigawatt-hours in total, which works out to about 0% of what it could have produced running flat out all year — the pattern of a plant that runs only during periods of high demand.

Nearby places worth exploring

Glenwood Landing sits in Nassau County, on Long Island’s North Shore. To the south, Jones Beach State Park and the city of Long Beach line the Atlantic shore. Closer to home, Old Westbury Gardens and Hofstra University are both in the county.

Local school district

North Shore Central School District

Common questions

* Homes-powered and emissions comparisons are annual estimates based on national averages from the U.S. Energy Information Administration. “Homes powered” describes a quantity of electricity, not direct service to specific households. How we calculate this.