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New York power
This facility is kept available as backup capacity rather than run continuously. It reported 35 MWh sent to the grid in 2024.
Air quality & health in Westchester County
Westchester County has a population of 990,817. Across five conditions the American Lung Association tracks — childhood asthma, adult asthma, COPD, lung cancer, and cardiovascular disease — it reports a combined 205,615 cases in the county.
The county received a grade of D for ozone pollution. No particle pollution grade is available.
Federal monitoring recorded 215 days of good air quality and 53 moderate days in the county over the most recent year, with 5 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
New York has 46 oil-fired plants in this category, and the generators at NYP-Hudson Valley Hospital Center in Cortlandt Manor rank #24 of 46 by 2024 electricity produced. They are backup generators, built to keep the hospital running if regular power is interrupted.
The site has 4 generators with a combined capacity of 2.6 MW, meaning the most power they can supply at one time. They burn distillate fuel oil, a light petroleum fuel, and began operating in 2010. Like most standby units, they spend nearly all their time waiting rather than running. Their value lies in being ready when needed, not in how much they produce.
Nearby places worth exploring
Cortlandt Manor sits in northern Westchester County, not far from the Hudson River towns of Tarrytown and Sleepy Hollow. White Plains and Yonkers are the county’s larger urban centers, and Rockefeller State Park Preserve is a well-known place for a walk outdoors.
Local school district
Lakeland Central School District
Common questions
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* 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.


