Davis Besse — United States of America
Nuclear power plant in Ohio, United States of America. Approximate location 41.5967, -83.0861.
NuclearOhioUnited States of America
Davis Besse is a 925 MW nuclear power station in Ohio, United States of America. It is operated by FirstEnergy Nuclear Operating Company. Based on reported annual generation of 7,838 GWh, it can supply roughly 2.2 million homes. It ranks #656 of 10,884 United States of America power plants by installed capacity. Commissioned in 1977, it is around 49 years old — long-established. 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).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0006149.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Source of the capacity and fuel values:
capacity: GEM Global Nuclear Power Tracker September 2025 operating-unit sum (location L100000500127); fuel: WRI GPPD
In context: how this plant compares
At 925 MW, Davis Besse is below the median nuclear plant in United States of America (1,350 MW). Nuclear plants split uranium to raise steam with no direct CO₂; they run as steady baseload with very high capacity factors and the longest operating lifetimes of any thermal plant.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Load factor
- 97%, from 7,838 GWh of reported generation; the median for 57 nuclear plants in United States of America that report generation is 89%
- Generation trend
- 7,680 GWh in 2013 and 7,838 GWh in 2019 (+2%)
- Highest and lowest year
- 2015: 7,894 GWh; 2014: 5,829 GWh
- Share of United States of America nuclear capacity
- 0.3% of 270,415 MW across 176 plants in this dataset
- Age among peers
- 51 of 111 dated nuclear plants in United States of America are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Reported generation trend
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by FirstEnergy Nuclear Operating Company.
Local climate & thermal context
This nuclear plant uses heat from nuclear fission to raise steam for a turbine-generator. It sits in a hot-summer humid continental climate (Köppen Dfa) — Northern Hemisphere, latitude 41.6°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 34% 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: 71/100 — this site sits in the top third of the power plants we cover by heating degree-days.
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.
Site climate & environmental severity
This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with thermal cycling the leading environmental stress.
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
How it compares & nearby plants
The #115 largest nuclear power plant of 176 in United States of America by capacity.
United States of America has 176 nuclear power plants in this dataset, together about 270,415 MW of capacity.
Nearby power plants
- Ottawa County Project · Waste · 2.8 MW · Ohio
- Genoa Diesel Generating Station · Oil · 6 MW · Ohio
- Fremont Energy Center · Gas · 739.5 MW · Ohio
- Oregon Clean Energy Center · Gas · 1,060 MW · Ohio
- FirstEnergy Bay Shore · Petcoke · 171 MW · Ohio
- Bay Shore Plant · Coal · 639.4 MW · Ohio
Location
Coordinates 41.5967, -83.0861 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Davis Besse?
Davis Besse is a 925 MW nuclear power plant in Ohio, United States of America, commissioned in 1977.
How much electricity does Davis Besse generate?
Davis Besse generates about 7,838 GWh of electricity per year.
Who operates Davis Besse?
Davis Besse is operated by FirstEnergy Nuclear Operating Company.