The data describes the forced outage rate of U.S. nuclear reactors between the fiscal years of 2000 and 2015. The outage rate in 2005 stood at 2.34%. According to the Nuclear Regulatory Commission, the term outage refers to a period during which a generating unit, transmission line, or other facility is out of service. The forced outage rate is the number of hours that the plant is unable to operate divided by the sum of the hours that the plant is generating electricity and the hours that the plant is not able to operate.
