Kyushu Electric has restarted the 890 MW unit-1 of its Sendai nuclear power plant in the Kagoshima prefecture in southern Japan, after meeting the new regulations on back-up safety measures. The company plans to restart the second unit in December 2020. The two units were shut down respectively in March 2020 and in May 2020.
In July 2013, the Nuclear Regulation Authority (NRA) approved new regulations in response to the Fukushima disaster, and required bunkered back-up control centres at nuclear power plants. In November 2015, it mandated reactors' operators to complete these facilities within 5 years after the approval of each plant's engineering and construction work programme. Operators failing to complete back-up centres about a week before the deadline are required to suspend operations at the reactor and to place the unit in cold shutdown.
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