NRA forges new trail in judging reactor risk

May 25, 2013

NRA forges new trail in judging reactor risk

by Miya Tanaka

Regulators are in the process of deciding which reactors are sitting on active faults, but the experts involved say there is clearly room for improvement. Fault exams at three nuclear power plants are proceeding in parallel. The first one to be finalized by an ...

May 23, 2013

NRA backs Tsuruga active fault finding

The Nuclear Regulation Authority accepts an assessment that reactor 2 at the Tsuruga nuclear plant sits on an active fault, increasing the likelihood that the unit can never be restarted.

Oi reactors face new NRA safety regimen

Apr 18, 2013

Oi reactors face new NRA safety regimen

The Nuclear Regulation Authority will start the process Friday to assess whether the nation’s two operating reactors can meet new safety requirements coming into force in July. If the NRA acknowledges that the reactors at Kansai Electric Power Co.’s Oi plant in Fukui Prefecture ...

Feb 15, 2013

Diet approves NRA commissioners

The Lower House on Thursday formally approved the appointment of five experts who have been serving as the Nuclear Regulation Authority’s commissioners since September. Following the endorsement, the Upper House is also expected to approve the appointments of NRA Chairman Shunichi Tanaka and four ...

Feb 10, 2013

Nuclear watchdog exec held 30 illicit meetings with power firms

A former senior official of the Nuclear Regulation Authority held at least 30 meetings with power company executives in violation of the new watchdog’s internal rules, it was learned Saturday. Tetsuo Nayuki, who served as director general of the NRA secretariat, met with representatives ...

Jan 19, 2013

Filter issue clouds restart of BWRs

One of the Nuclear Regulation Authority’s commissioners said that boiling-water reactors will not be allowed to resume operation unless they are equipped with filtered venting systems that can reduce the amount of radioactive particulates ejected during emergency venting. Of Japan’s 50 commercial reactors, 26 ...