NEI reports that U.S. nuclear fleet had 84.5% capacity factor in November

The U.S. nuclear fleet’s average estimated capacity factor in November 2015 was 84.5%, which was down from the 91.2% figure recorded in in November 2014, according to recent data from the Nuclear Energy Institute (NEI).

Estimated U.S. nuclear generation in November 2015 was 60.1 billion kWh, compared to 65.1 billion kWh in November 2014.

In its Nuclear Performance report for November, NEI seems to attribute the drop-off to the timing of many nuclear plant refueling outages. “Thirty reactors refueled this fall, compared to 24 in fall 2014,” NEI said in the monthly update.

In the period Jan. 1 to Nov. 30, 2015, the fleet’s average estimated capacity factor was 91.8%, above where it was for the same period in either 2014 or 2013, 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