The No. 1 reactor at the Takahama nuclear power plant in Takahama, Fukui Prefecture, which is the oldest operating nuclear plant in Japan, passed the 50-year operating milestone on Nov.

The move comes as Fukui Prefecture, home to several nuclear plants, urges Kansai Electric to address shrinking storage ...

An alarm signaling a marked drop in neutron levels forced a reactor at the Takahama nuclear power plant in Takahama, Fukui Prefecture, to shut down on Jan. 30 while the cause is investigated.