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New York power
This facility is kept available as backup capacity rather than run continuously. It reported 16 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 St. Joseph Hospital’s generating setup in Yonkers ranks #34 of 46 by 2024 electricity produced. It is a standby system, meaning it is there to be available when needed rather than to run all the time.
The hospital has 2 generators, with a combined capacity of 1.0 MW (a megawatt is a measure of how much power equipment can deliver at one moment). They burn distillate fuel oil, a refined liquid fuel similar to diesel, and have been part of the site since 1960. Con Edison supplies the hospital’s regular electricity, so these units serve as a backup.
Nearby places worth exploring
Yonkers sits on the Hudson River in Westchester County, just north of New York City. Nearby, the river towns of Tarrytown and Sleepy Hollow are popular for walks and village charm, and White Plains is the county’s busy urban center. Rockefeller State Park Preserve and Playland amusement park in Rye are well-known county destinations.
Local school district
Yonkers City School District
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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.


