Nuclear power plants' capacity factor in the U.S. 1975-2023

Capacity factor of nuclear power plants in the United States from 1975 to 2023

CharacteristicCapacity factor
2023 93.1%
2022 92.7%
2021 92.8%
2020 92.4%
2019 93.4%
2018 92.5%
2017 92.3%
2016 92.3%
2015 92.3%
2014 91.7%
2013 89.9%
2012 86.1%
2011 89.1%
Created with Highcharts 7.2.2Capacity factor55.9%55.9%56.3%56.3%58%58%66%66%77.4%77.4%88.1%88.1%89.3%89.3%91.1%91.1%89.1%89.1%86.1%86.1%89.9%89.9%91.7%91.7%92.3%92.3%92.3%92.3%92.3%92.3%92.5%92.5%93.4%93.4%92.4%92.4%92.8%92.8%92.7%92.7%93.1%93.1%197519801985199019952000200520102011201220132014201520162017201820192020202120222023
55%60%65%70%75%80%85%90%95%100%
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Release date

May 2024

Region

United States

Survey time period

1975 to 2023

Supplementary notes

* Estimated.
According to the source, the Generator Capacity Factor is the ratio of the electric energy produced by a generating unit for a given period of time to the electric energy that could have been produced at continuous full-power operation during the same period. Beginning in 2008, capacity factor data are calculated using a new methodology.

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