Exelon (NYSE:EXC) reported May 7 that the Oyster Creek nuclear station automatically shut down at 5:27 p.m. due to an electrical disturbance on the non-nuclear side of the plant.
Operators responded appropriately and all systems functioned as designed.
Notifications were made to the Nuclear Regulatory Commission (NRC) and state officials as per procedure. The shutdown did not present any public health or safety risks.
Oyster Creek generation was listed at 100% prior to the incident and was listed at zero generation early May 8, according to NRC data.
“An automatic scram from a turbine trip occurred,” according to an NRC event report.
Oyster Creek is about 60 miles east of Philadelphia in Ocean County, New Jersey. The plant produces 636 MW net at full power. Oyster Creek is a boiling water reactor (BWR) that first entered commercial service in 1969.
The plant is scheduled to retire by the end of 2019.
The NRC said recently that it will tighten its oversight of the plant after regulators reviewed problems linked with design aspects of electromatic relief valves.