Net summer capacity of nuclear power plants in the United States 1975-2017

The data displays the net summer capacity of operable units in the U.S. between 1975 and 2017. In 2017, this figure stood at around 100 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 5% of gross generation.