TotalU.S. nuclear plant availability edged up early April 4 to 87.47%, increasingfrom 87.39% on April 1 and well above the 81.11% reported on the same day in2015.

Increasedproduction at several nuclear units across the country worked to boost totalavailability. Energy Northwest'sColumbia Generating Station in Washington ramped to full power as of April 4.The unit was pegged at 71% on April 1 and 15% on March 31.

's Grand Gulf 1 inMississippi continued to increase output, reaching 81% as of early April 4,rising from 52% on April 1. The reactor was shut unexpectedly March 29 due to aturbine trip.

Additionally,Duke Energy Corp.'sBrunswick 1 in North Carolina was operating at 85% early April 4, up from 52%on April 1. Output at the reactor was cut from 95% to 50% early March 31.

Onthe flip side, Ameren Corp.'sCallaway nuclear plant in Missouri was offline as of early April 4, down from86% power April 1.

Power production levels andimpending outage dates are current at the time of publication and are subjectto change. For details of U.S. nuclear power plant operations, visit our NuclearStatus and Outage Report.