Net summer capacity of nuclear power plants in the United States 1975-2018

This statistic shows the net summer capacity of operable units in the United States between 1975 and 2018. In 2018, this figure stood at around 99.4 gigawatts. According to the source, the term net summer capacity describes the steady hourly output that generating equipment is expected to supply to system load - excluding auxiliary power - as demonstrated by test at the time of summer peak demand. Auxiliary power of a typical nuclear power plant is about five percent of gross generation.

Net summer capacity of nuclear power plants in the U.S. from 1975 to 2018 (in billion kilowatts)*

Net summer capacity in billion kilowatts
201899.36
201799.63
201699.57
201598.67
201498.57
201399.24
2012101.89
2011101.42
2010101.17
2009101
2008100.76
2007100.27
2006100.33
200599.99
200097.86
199599.52
199099.62
198579.4
198051.81
197537.27
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Source

Release date

March 2019

Region

United States

Survey time period

1975 to 2018

Supplementary notes

* As of year end.
** Estimated figure
Beginning in 2011, monthly capacity values are estimated in two steps: 1) uprates and derates are added to specific months; and 2) the difference between the resulting year-end capacity and final capacity is allocated to the month of January

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