In order to further improve the safety of Shika Nuclear Power Station, we continue to work on various measures, including independent safety measures, taking account of the review statuses and results for other companies and other factors. We steadily continue to implement the safety improvement works, and take appropriate actions in relation to future reviews on conformity to the regulatory requirements, with the goal of an early restart of Shika Nuclear Power Station.
A new power supply system will be installed in a dedicated building for connecting the gas turbine generator (permanent backup AC power supply) to the facilities for handling major accidents and other emergencies.
New equipment will be installed to prevent the reactor containment vessel from being damaged even under conditions where the existing residual heat removal pump cannot be used.
New equipment will be installed to enable water injection into the reactor, using a pump driven by steam from the reactor, even in the event of a station blackout.
New equipment will be installed to reduce the release of radioactive substances in the event of containment venting.
Instead of tanks for gas oil for emergency diesel generators, which are currently installed above ground, new tanks will be installed underground to enhance preparedness against disasters, including tornadoes and fires.
As we put the highest priority on safety, we work to improve safety measures at Shika Nuclear Power Station, with a firm determination to prevent any accidents like the one that occurred at Fukushima Daiichi Nuclear Power Station from happening again.
At present, we are proceeding with the installation of underground gas oil storage tanks and backup power-supply facilities on the premises, as well as steadily advancing other works to provide safety measures.
With even greater commitment and dedication, we pursue the worldʼ s highest level of safety, and implement safety measures in integrated cooperation with the employees of our company and partner companies working at Shika Nuclear Power Station, as the close-knit “Team Shika,” in order to earn the trust of, and provide peace of mind to, the people in our local communities.
