TEPCO Delays First Nuclear Reactor Restart Since Fukushima After Alarm System Malfunction

TEPCO delayed its Kashiwazaki-Kariwa nuclear plant restart after an alarm malfunction. The move disrupts plans for commercial operations on February 26.

Insights:
Tokyo Electric Power Company Holdings (TEPCO) announced on Monday, January 19, 2026, that it has delayed the planned restart of Unit No. 6 at its Kashiwazaki-Kariwa nuclear power plant. Originally scheduled for January 20, the restart was postponed after an alarm system malfunction was discovered over the weekend. This operation would have marked the first reactor restart for Tokyo Electric Power Company Holdings (TEPCO)since the 2011 tsunami destroyed its Fukushima Daiichi plant and led to the eventual shutdown of all 54 reactors across Japan JPJP.
FILE PHOTO: Tokyo Electric Power Company's (TEPCO) Kashiwazaki-Kariwa nuclear power plant stands along the seaside in Kashiwazaki, Niigata prefecture, Japan December 21, 2025.REUTERS/Issei Kato/File Photo
FILE PHOTO: Tokyo Electric Power Company's (TEPCO) Kashiwazaki-Kariwa nuclear power plant stands along the seaside in Kashiwazaki, Niigata prefecture, Japan December 21, 2025.REUTERS/Issei Kato/File Photo
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