On 5 July 2012 unit 3 at the Ohi nuclear power plant restarted and became the first working nuclear unit in Japan since May. Since the Fukushima accident in March 2011, the country’s reactors were all gradually closed for refuelling, for further safety assessments and due to local opposition to their restart. Public attitude towards to restart will likely be a determining factor to how many more reactors will be re-opened.
Simultaneously "The official report report of The Fukushima Nuclear Accident Independent Investigation Commission“published by the Diet, the national parliament of Japan, concluded:”The Fukushima nuclear power plant accident was the result of collusion between the government, the regulators and Tepco, and the lack of governance by said parties."