Tag Archives: Byron

Event Reports: Illinois reactor suffers another loss of offsite power incident

Yesterday afternoon, operators at the Byron nuclear power plant in Illinois declared an Unusual Event due to a malfunction in the switchyard that caused the Unit 2 reactor to lose offsite power. Emergency diesel generators started following the incident, and … Continue reading

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Event Report: Operators scram Illinois nuke following turbine trip

The Unit 2 reactor at the Byron nuclear power plant in Illinois has been shut down since January 31, following a loss of offsite power incident. On Monday of this week, repairs had been completed, and operators were attempting to … Continue reading

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Update: Offsite power restored at Illinois nuke, and NRC begins investigation

The Byron nuclear power plant notified the Nuclear Regulatory Commission that it had restored offsite power to its Unit 2 reactor as of 10 pm yesterday. This means that the reactor was running on power supplied by emergency diesel generators … Continue reading

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Event Report: Update on loss of power incident at Illinois nuke

Today’s NRC Event Reports include the incident yesterday morning at the Byron Unit 2 reactor in Illinois. There are three significant updates.   First, the reactor is still operating on power supplied by the unit’s emergency diesel generators. So, at … Continue reading

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Illinois nuke shuts down after loss of power incident

 The Chicago Tribune reported this afternoon: U.S. power company Exelon’s 1,136-megawatt Unit 2 at the Byron nuclear power plant in Illinois shut Monday morning, a spokeswoman at the U.S. Nuclear Regulatory Commission (NRC) said. Exelon declared an unusual event due … Continue reading

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Illinois nuclear employee drunk on duty

Today’s NRC Event Reports included a Fitness for Duty incident at the Byron nuclear power plant in Illinois. An employee supervisor tested positive for alcohol in a random Fitness for Duty test yesterday. The employee’s access to the plant has … Continue reading

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