Japan's nuclear watchdog said Wednesday it has lifted its de facto ban on the operation of Tokyo Electric Power Company Holdings Inc.'s Kashiwazaki-Kariwa plant in Niigata Prefecture, more than two years after an order was issued for the improvement of counterterrorism measures.
The Nuclear Regulation Authority confirmed that measures had been enhanced after inspections of the seven-reactor complex on the Sea of Japan coast and hearing from TEPCO President Tomoaki Kobayakawa, but it remains uncertain whether the nuclear plant will resume operation as the trouble-prone utility still needs to obtain local consent.
In April 2021, the NRA prohibited the transportation or loading of reactor fuel stored at the plant due to insufficient counterterrorism measures, ordering the utility to take corrective action.
Restarting the complex, one of the world's largest nuclear plants by output, is an integral part of TEPCO's restructuring plan to restore its operations following the Fukushima nuclear disaster triggered by a massive earthquake and tsunami in March 2011.
The crisis at the Fukushima Daiichi power plant, the worst nuclear accident since the 1986 Chernobyl disaster, led to the scrapping of the complex as well as TEPCO's Fukushima Daini plant.
The Kashiwazaki-Kariwa plant was found to be vulnerable to unauthorized entry at multiple locations because of defective intruder detection systems and backups, with security flaws discovered since January 2021, according to the NRA.
The authority confirmed measures had been enhanced through an additional 4,268 hours of inspections, according to the regulators.
