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New York power
Generates renewable electricity from the Pepatcon Reservoir, supporting New York communities and producing enough electricity for about 8,200 homes for a year.*
Air quality & health in Sullivan County
Sullivan County has a population of 79,920. Across five conditions the American Lung Association tracks — childhood asthma, adult asthma, COPD, lung cancer, and cardiovascular disease — it reports a combined 16,644 cases in the county.
No ozone or particle pollution grades are available for this county in the most recent report. The figures above describe how many residents live with conditions sensitive to air quality — not measured pollution levels.
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 142 hydropower plants, and Grahamsville, in Sullivan County, ranks #15 of 142 by 2024 electricity produced. It draws water from the Pepatcon Reservoir, a reservoir being a lake where water is stored for use. Hydropower means the plant turns flowing water into electricity, and it does so without burning anything. The New York Power Authority owns it, and it has been running since 1956.
The plant has a capacity of 18.0 MW, a megawatt being a measure of how much power it can supply at one moment. Over 2024 it produced 82.3 gigawatt-hours, a gigawatt-hour being a large unit of electricity over time, enough to power about 8,200 homes. It runs one generator, the machine that converts moving water into electric power.
Environmental impact
Produces electricity without burning fuel, which avoids roughly 32,000 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 12,000 tons of waste out of a landfill.*
Nearby places worth exploring
Grahamsville sits in the southern Catskills, in Sullivan County. Nearby you’ll find Bethel Woods Center for the Arts and the village of Monticello. The Delaware River forms the county’s western edge.
Local school district
Tri-Valley Central 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.
