Peach Bottom

Nuclear power plant in Pennsylvania, United States of America. Approximate location 39.7589, -76.2687.

NuclearPennsylvaniaUnited States of America

Peach Bottom is a 2,876 MW nuclear power station in Pennsylvania, United States of America. It is operated by Exelon Nuclear. Based on reported annual generation of 22,294 GWh, it can supply roughly 6,369,828 homes. It ranks #13 of 9,833 United States of America power plants by installed capacity. Commissioned in 1974, it is around 52 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).

2,876MW installed capacity
22,294GWh reported / yr
6,369,828homes powered
1974commissioned (~52 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0003166.

Reported generation trend

2013: 18,834 GWh20132014: 18,771 GWh20142015: 19,858 GWh20152016: 21,875 GWh20162017: 21,722 GWh20172018: 21,680 GWh20182019: 22,294 GWh201922k 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 humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 39.8°N — which shapes how much energy it can produce and how its output varies through the year.

11.7°Cannual mean temp
2,728heating degree-days (base 18°C)
464cooling degree-days (base 18°C)
110 melevation

Monthly mean temperature

J: -1 °CJF: 0 °CFM: 5 °CMA: 10 °CAM: 16 °CMJ: 21 °CJJ: 24 °CJA: 23 °CAS: 19 °CSO: 13 °CON: 8 °CND: 2 °CD24 °C

Heating degree-days here run 11% 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: 55/100 — this site sits in the mid 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 #3 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 39.7589, -76.2687 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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