"Power companies in Japan are willing to spend billions of dollars on reactor upgrades because they expect the investments will help them reduce substantial costs spent on replacement fossil fuels. Restarting the two Takahama reactors, for example, could save about Yen 10 billion/month for Kansai Electric Power Co., a company spokesman said March 22."
https://blogs.platts.com/2016/03/29/nuclear-safety-upgrades-...
"Power companies in Japan are willing to spend billions of dollars on reactor upgrades because they expect the investments will help them reduce substantial costs spent on replacement fossil fuels. Restarting the two Takahama reactors, for example, could save about Yen 10 billion/month for Kansai Electric Power Co., a company spokesman said March 22."