Nuclear Regulation Authority

SPEEDI radiation forecasting dropped by NRA as primary alert system
The System for Prediction of Environmental Emergency Dose Information (SPEEDI) in 2011 (Pool)
Japan's nuclear watchdog has decided to scrap a warning system to alert residents to evacuate in an emergency because it didn't function properly when there was a nuclear...
Kyushu Electric submits measures for volcanic eruption to nuclear...
The Sendai nuclear power plant in Satsuma-Sendai, Kagoshima Prefecture, in September (Asahi Shimbun file photo)
Kyushu Electric Power Co. has submitted more details on its safety measures for a volcanic eruption affecting its Sendai nuclear power plant, which is located near active...
Difficulties remain in protecting nuclear plants from volcanic...
People undergo radiation testing during a disaster management drill conducted near the Sendai nuclear plant in Kagoshima Prefecture in October 2013. (Asahi Shimbun file photo)
The deadly eruption of Mount Ontakesan in central Japan has rekindled concerns about whether Japan's nuclear power plants, such as the Sendai plant in Kagoshima Prefecture,...
TEPCO doubles tsunami height in damage estimate for Fukushima plant
A temporary levee constructed on the coastline at the Fukushima No. 1 nuclear power plant after the March 2011 Great East Japan Earthquake and tsunami (Asahi Shimbun file photo)
A tsunami of 26 meters would inundate the already-stricken Fukushima No. 1 power plant, causing a huge amount of radioactive substances to spill into the sea, according to...
Paperwork delays snarl restart of Sendai nuclear plant to next year
The Sendai nuclear power plant in Satsuma-Sendai, Kagoshima Prefecture (Asahi Shimbun file photo)
Kyushu Electric Power Co. jumped through all hoops but one to get its Sendai nuclear power plant in Kagoshima Prefecture back online this year.
Japan vows to push ahead with reactor restarts after volcanic...
The Sendai nuclear power plant in Satsuma-Sendai, Kagoshima Prefecture (Asahi Shimbun file photo)
Japan's government said the sudden deadly eruption of a volcano in central Japan won't derail its push to restart two reactors located near active volcanoes, even though the...
Outgoing NRA commissioner insists safety screenings for reactors...
Kunihiko Shimazaki speaks at a news conference on his retirement from the Nuclear Regulation Authority in Tokyo’s Minato Ward on Sept. 18. (Toshio Kawada)
An outgoing commissioner of the Nuclear Regulation Authority rejected criticism from the pro-nuclear community, saying the safety screenings for restarting the nation’s idled ...
Kansai Electric mulling over decommissioning aging Mihama reactors
The No. 1 and 2 reactors (left) at Kansai Electric Power Co.'s Mihama nuclear power plant in Fukui Prefecture (Asahi Shimbun file photo)
OSAKA--Kansai Electric Power Co. is considering decommissioning two reactors at its Mihama nuclear power plant in Fukui Prefecture, but is intent on restarting two others at...
More ALPS equipment approved for use at Fukushima plant
The multi-nuclide removal equipment ALPS (advanced liquid processing system) at the Fukushima No. 1 nuclear power plant undergoes an inspection due to system troubles last November. (Asahi Shimbun file photo)
Additional decontamination machines will be installed at the crippled Fukushima No. 1 nuclear power plant to treat the hundreds of tons of radioactive groundwater collected at...
Major budget cut planned for radiation forecasting tool for...
The Asahi Shimbun
The Nuclear Regulation Authority is planning a major slash in the budget for a forecasting tool for the spread of radioactive substances that was at the center of a controversy ...
Paperwork forces Kyushu Electric to delay reactor restarts
The Sendai nuclear power plant in Satsuma-Sendai, Kagoshima Prefecture, in April 2014 (Asahi Shimbun file photo)
Kyushu Electric Power Co.’s failure to submit paperwork will postpone the resumption of operations at its Sendai nuclear plant, despite the reactors having cleared tougher...
COMMENTARY: Green light for Sendai plant shows lessons from...
Trucks used in construction work enter the Sendai nuclear power plant in Kagoshima Prefecture on July 16 after the results of the safety screening were released. (Shoma Fujiwaki)
It clearly hasn't dawned on the central government and Japan's electric power companies that it is impossible to construct a nuclear plant that is 100-percent safe.
Koizumi: Government's nuclear-energy logic a complete failure
Former Prime Minister Junichiro Koizumi in May (Asahi Shimbun file photo)
Former Prime Minister Junichiro Koizumi again blasted the Abe administration’s pro-nuclear energy strategy, saying the plan to restart reactors across the nation is “too...
EDITORIAL: Nuclear watchdog should stick to strict personnel rules
Satoru Tanaka (Asahi Shimbun file photo)
Two key individuals of the nation’s nuclear safety watchdog were in the news last weekend. Neither matter should be overlooked.
Sendai nuclear plant set to restart without off-site emergency...
The off-site emergency center in Okuma of the Fukushima No. 1 nuclear power plant was rendered unusable after the nuclear disaster in March 2011. (Asahi Shimbun file photo)
The Sendai nuclear power plant in Kagoshima Prefecture could restart two reactors in autumn without a crucial emergency facility in place to deal with a possible nuclear...
Japan to experience nuclear-free summer
The Sendai nuclear power plant in Kagoshima Prefecture (Asahi Shimbun file photo)
Kyushu Electric Power Co.’s delayed application for safety screenings of two reactors means Japan will be without nuclear energy this summer for the first time since the...
Tohoku Electric seeks reactor restart; praise, anger expressed...
Inspectors from the Nuclear Regulation Authority study geological formations along a fault line at the Higashidori nuclear power plant in Aomori Prefecture in December 2013. (Pool)
Tohoku Electric Power Co. on June 10 applied to the Nuclear Regulation Authority for safety screenings to restart a reactor that might lie directly above an active fault.
Nuclear safety inspectors first to flee stricken Fukushima plant
The central control room of the No. 2 reactor at the Fukushima No. 1 nuclear power plant on March 26, 2011 (Provided by TEPCO)
Safety inspectors with the government's nuclear watchdog body were the first to flee when disaster struck the Fukushima No. 1 nuclear power plant in March 2011.
Pro-nuclear expert replacing NRA commissioner who raised flag on...
Kunihiko Shimazaki, Nuclear Regulation Authority commissioner (Asahi Shimbun file photo)
Replacements for two outgoing commissioners of the Nuclear Regulation Authority suggest the Abe administration will find it easier to gain approval for restarts of the nation's ...
ANALYSIS: Court ban on restart of Oi plant puts nuclear safety...
Plaintiffs, their lawyers and supporters hail the court ruling in their favor in front of the Fukui District Court on May 21. (Masaki Yamamoto)
A court ruling ordering Kansai Electric Power Co. not to restart the No. 3 and No. 4 reactors of the Oi nuclear power plant in Fukui Prefecture has called into question the...