UNUSUAL EVENT DECLARED DUE TO A LOSS OF OFFSITE POWER

At 2312 EDT, on August 4, 2020, Brunswick Unit 1 declared an Unusual Event due to a loss of offsite power. The unit was at approximately 20 percent power and was not synced to the grid when the unit automatically scrammed. All control rods fully inserted. Emergency Diesel Generators started and began powering the safety buses. Safety systems actuated as expected.

The Unit also experienced a loss of Fuel Pool Cooling and Cleanup System, but one pump was returned to service.

Unit 2 remains at 100 percent power and is unaffected.

The licensee notified State and local governments, as well as the NRC Resident Inspector.

Notified DHS SWO, FEMA Operations Center, CISA IOCC, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).