Domestic nuclear feet ran at almost 96% capacity in December, NEI reports

The U.S. nuclear power fleet’s average estimated capacity factor in December 2015 was 95.6%, compared to 99.6% in December 2014, the Nuclear Energy Institute (NEI) reported recently.

The average estimated capacity factor for the full year 2015 was a record 91.9%, according to NEI’s Performance Report.

Estimated U.S. nuclear generation in December 2015 was 70.5 billion kWh, compared to 73.4 billion kWh in December 2014. The estimated U.S. nuclear generation for the full year 2015 was 797.96 billion kWh (from 99 reactors), compared to 797.17 billion kWh in 2014 (from 100 reactors), NEI said in its monthly update.

During 2015 refueling outages averaged 36 days, one day lower than the 2014 average. Spring 2016 refueling outages are expected to begin in early February, and 28 reactors are expected to refuel before July, NEI said.


About Wayne Barber 4201 Articles
Wayne Barber, Chief Analyst for the GenerationHub, has been covering power generation, energy and natural resources issues at national publications for more than 20 years. Prior to joining PennWell he was editor of Generation Markets Week at SNL Financial for nine years. He has also worked as a business journalist at both McGraw-Hill and Financial Times Energy. Wayne also worked as a newspaper reporter for several years. During his career has visited nuclear reactors and coal mines as well as coal and natural gas power plants. Wayne can be reached at