The Byron nuclear power plant in Illinois is still operating on diesel emergency generators while the operator, Excelon tries to find the cause of the total loss of offsite power to unit 2.
The NRC has begun a special inspection of Byron NPP to determine the cause of the outage.
Via NRC email:
NRC BEGINS SPECIAL INSPECTION AT BYRON NUCLEAR PLANT
The U.S. Nuclear Regulatory Commission has started a Special Inspection to review the
circumstances around the loss of offsite power that led to a Unit 2 reactor shutdown on Jan. 30 at the
Byron nuclear power plant.
The two-unit plant is operated by Exelon Generation Co. and is located in Byron, Ill., about 17
miles southwest of Rockford.
The special inspection team began work today and will look into how plant equipment responded
to the loss of offsite power. They will review the sequence of events, evaluate the facts and
circumstances, and review the plants actions surrounding the incident. The team will also review the
plant’s evaluation of what happened, their plan for addressing the cause of the event, and the
implementation of their corrective actions.
Unit 2 remains in a safe and stable shutdown condition and the diesel generators continue
to supply power to the plant as planned for this type of incident. There was a steam release from
the non-nuclear side of the plant with trace amounts of tritium. This type of steam release is used by
nuclear power plants to release pressure in order to maintain the plant in a stable condition. Doses to the
public from this type of release are significantly below even the most stringent Federal protective limits
and, therefore, do not pose a risk to public health and safety.
The NRC’s special inspection report will be available within 45 days of the inspection’s
completion of through the NRC RIII Office of Public Affairs or through the Agencywide Documents
Access and Management System (ADAMS) at the NRC website
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