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R E Ginna Nuclear Power Plant

Nuclear power plant in New York, United States of America. Approximate location 43.2777, -77.3099.

NuclearNew YorkUnited States of America

R E Ginna Nuclear Power Plant is a 614 MW nuclear power station in New York, United States of America. It is operated by Exelon Nuclear. Based on reported annual generation of 4,994 GWh, it can supply roughly 1,426,771 homes. It ranks #600 of 9,833 United States of America power plants by installed capacity. Commissioned in 1970, it is around 56 years old — an older, legacy facility. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, nuclear supplies about 17.4% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

614MW installed capacity
4,994GWh reported / yr
1,426,771homes powered
1970commissioned (~56 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0006122.

Reported generation trend

2013: 4,993 GWh20132014: 4,662 GWh20142015: 4,801 GWh20152016: 5,070 GWh20162017: 4,698 GWh20172018: 4,689 GWh20182019: 4,994 GWh20195k GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Exelon Nuclear. All plants by this company →

Local climate & thermal context

This nuclear plant uses heat from nuclear fission to raise steam for a turbine-generator. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 43.3°N — which shapes how much energy it can produce and how its output varies through the year.

8.6°Cannual mean temp
3,597heating degree-days (base 18°C)
206cooling degree-days (base 18°C)
111 melevation

Monthly mean temperature

J: -5 °CJF: -4 °CFM: 1 °CMA: 7 °CAM: 14 °CMJ: 18 °CJJ: 22 °CJA: 21 °CAS: 16 °CSO: 10 °CON: 5 °CND: -1 °CD22 °C

Heating degree-days here run 46% above the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 78/100 — this site sits in the top third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

How it compares & nearby plants

The #58 largest nuclear power plant of 58 in United States of America by capacity.

United States of America has 58 nuclear power plants in this dataset, together about 104,233 MW of capacity.

Nearby power plants

Location

Coordinates 43.2777, -77.3099 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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