Kansai Electric Manually Shuts Down Mihama No. 3 Reactor Over Water Droplets
On September 17, 2026, the Fukui prefectural government said Kansai Electric Power Company is carrying out a manual shutdown of the No. 3 unit at the Mihama nuclear plant. The unit is located in Mihama Town, Fukui Prefecture.
The operation was prompted by the discovery of water droplets near piping in the secondary loop, which does not contain radioactive substances.
In May 2026, the No. 3 unit at the Mihama nuclear plant experienced a steam leak from a high-pressure turbine metal cover. After Kansai Electric Power Company took countermeasures, the unit restarted its reactor on September 12, 2026.
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