Japan nuclear watchdog says two reactors at Tepco’s Kashiwazaki-Kariwa to stay idle — for now via The Japan Times

The country’s atomic watchdog held off certifying the safety of two idle reactors at Tokyo Electric Power Company Holdings Inc.’s Kashiwazaki-Kariwa nuclear plant in Niigata Prefecture on Wednesday, citing a lack of debate on specific safety measures taken.

The Nuclear Regulation Authority had been expected to verify that the Nos. 6 and 7 reactors had passed stringent new safety requirements, but faced criticism over a lack of debate over whether Tepco, which also operates the wrecked Fukushima No. 1 site, is fit to run a nuclear power plant.

Before being rebooted, reactors must first clear the stiffer safety requirements introduced after the March 2011 Fukushima nuclear crisis. Tepco filed for safety assessments of the two Kashiwazaki-Kariwa units in September 2013.

Still, the embattled utility did come away with one win: The regulator reached a consensus that Tepco is fit to operate nuclear power plants.


Sources said that the regulator had planned to give the safety clearance while departing Chairman Shunichi Tanaka was still on board, but reversed course after criticism emerged over the lack of debate about Tepco’s qualifications.

Tanaka’s term expires on Sept. 18, although he will continue to work until Sept. 22.


In July, Tanaka criticized Tepco’s attitude, saying: “An operator, who cannot take concrete measures for decommissioning efforts of the Fukushima No. 1 power plant, does not have the right to resume operation of nuclear reactors.”

Tanaka urged the utility to submit a more thorough explanation in writing on issues such as how to deal with contaminated water.

While Tepco, in its subsequent written response, did not discuss the contaminated water issue, it did pledge to see the decommissioning process through to the end, gaining a certain level of understanding from the regulator.

Meanwhile, the prospect of gaining local consent needed for the two reactors’ restart remains uncertain, with Niigata Gov. Ryuichi Yoneyama saying it could take “around three to four years” for the utility to win over locals.



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