Japan restarts Genkai 4

18 June 2018

Unit 4 at Kyushu Electric Power Co’s Genkai nuclear plant in Japan’s Saga Prefecture was restarted on 16 June.

Genkai 4 is the ninth reactor to go back online since stricter safety rules were adopted following the 2011 Fukushima nuclear accident. The Genkai plant faced a series of problems in the lead-up to the restart.

In May, pumps installed to control coolant circulation at Genkai 4 malfunctioned  after Genkai 3 experienced a steam pipe leak following is restart in March. Kyushu Electric estimates that restarting the two units will save it JPY11bn a month ($99m) by reducing the need for fossil fuels.

Genkai 4 was cleared to restart by the Nuclear Regulation Authority in January 2017 and in March 2018 the Saga District Court rejected a request for an injunction against the plant’s operation.

The 1180MWe pressurised water reactor is expected to begin generating electricity again on 20 June, with commercial operation scheduled for mid-July.

Map showing current status of Japanese reactors

Privacy Policy
We have updated our privacy policy. In the latest update it explains what cookies are and how we use them on our site. To learn more about cookies and their benefits, please view our privacy policy. Please be aware that parts of this site will not function correctly if you disable cookies. By continuing to use this site, you consent to our use of cookies in accordance with our privacy policy unless you have disabled them.