Country profile: United States

Summary figures for 2016

The following information is from the NEA publication Nuclear Energy Data, the annual compilation of official statistics and country reports on nuclear energy in OECD member countries.

Number of nuclear power plants connected to the grid
Nuclear electricity generation (net TWh) 2016
Nuclear percentage of total electricity supply
United States
OECD America
OECD Total
1 877.5
NEA Total
2 061.1

* Preliminary data

Country report

The United States nuclear power industry represents one-quarter of the world's nuclear power capacity. As of 31 December 2016, the United States operated 99 light water reactors (one less than in 2015) with a current combined net capacity of 99.3 gigawatts electric (GWe). Data are preliminary and include the electric power sector only. In 2016, US reactors generated 20.4% of total utility-scale electricity while comprising 9.5% of total US electric capacity.

In 2016, US nuclear power plants generated 797.9 net terawatt-hours (TWh) of electricity of the total electricity generation of 3 911 TWh based on preliminary US Energy Information Administration (EIA) data. Data include only the electric power sector. For more than a decade, the nuclear share of total generation has remained relatively constant, as recent permanent shutdowns have been offset by increased performance (capacity factors) and uprates.

The following paragraphs describe current conditions in the United States related to nuclear power and uranium.

Source: Nuclear Energy Data 2017

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Last reviewed: 6 November 2017