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TEPCO Shuts Down Reactor After Alarm at Restart

1/22/2026

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Summary

Story summary

Tokyo Electric Power Company Holdings (TEPCO) shut down a reactor at the Kashiwazaki-Kariwa plant after an alarm triggered during control rod withdrawal.
The restart marked TEPCO's first since the 2011 Fukushima disaster and occurred on January 21 after a pre-startup test alarm delayed it.
The Nuclear Regulation Authority confirmed the reactor is stable and has no safety issues.
Local authorities said no abnormal radioactivity levels were detected around the facility.

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Story summary

Tokyo Electric Power Company Holdings (TEPCO) shut down a reactor at the Kashiwazaki-Kariwa plant after an alarm triggered during control rod withdrawal.
The restart marked TEPCO's first since the 2011 Fukushima disaster and occurred on January 21 after a pre-startup test alarm delayed it.
The Nuclear Regulation Authority confirmed the reactor is stable and has no safety issues.
Local authorities said no abnormal radioactivity levels were detected around the facility.