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New York power
Generates renewable electricity from sunlight, supporting New York communities and producing enough electricity for about 190 homes for a year.*
Air quality & health in Suffolk County
Suffolk County has a population of 1,523,170. Across five conditions the American Lung Association tracks — childhood asthma, adult asthma, COPD, lung cancer, and cardiovascular disease — it reports a combined 316,289 cases in the county.
The county received a grade of F for ozone pollution. For particle pollution — the fine soot and dust that can be breathed deep into the lungs — it received a grade of A.
Federal monitoring recorded 235 days of good air quality and 76 moderate days in the county over the most recent year, with 3 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 renewable energy facility
New York has 567 solar plants in this category, and the Dennison solar plant in Hauppauge, Suffolk County, ranks #479 of 567 by 2024 electricity produced. It uses solar photovoltaic technology, meaning panels that turn sunlight directly into electricity, and it began operating in 2011.
In 2024 it generated 1.9 gigawatt-hours, a gigawatt-hour being a very large unit of electricity, equal to about 190 homes’ use. Its capacity, the most power it can deliver at one moment, is 2.0 MW, a megawatt being one million watts. Solar produces without burning fuel, and PSEG Long Island is the local utility.
Environmental impact
Produces electricity without burning fuel, which avoids roughly 740 metric tons of carbon dioxide a year compared with producing the same electricity from the national mix of power sources — about the same as keeping about 290 tons of waste out of a landfill.*
Nearby places worth exploring
Hauppauge sits in Suffolk County, home to Stony Brook University and the beaches of Fire Island. Farther east on Long Island you will find the Hamptons, Montauk Point, and the North Fork wine country.
Local school district
Deer Park Union Free 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.
