TOKYO — Tokyo Electric Power will shut down the No.6 reactor at the Kashiwazaki-Kariwa nuclear power plant after a malfunction was detected early on Thursday, a day after the unit went online for the first time in more than 13 years.
In early hours of Thursday, an alarm was triggered during work to withdraw control rods from the reactor, TEPCO said in a statement, adding it would stop the reactor to investigate the cause of the malfunction.
It did not say when the reactor could be restarted.
TEPCO restarted the No.6 unit at Kashiwazaki-Kariwa, the world’s biggest nuclear power plant, on Wednesday evening in what was its first nuclear reactor to be turned on since the Fukushima disaster in 2011.
The process had been delayed from Tuesday as TEPCO investigated an alarm malfunction. As of early Wednesday, the equipment in question was functioning normally, TEPCO said at the time.
Shares in TEPCO lost 3.5% on Thursday, underperforming the benchmark Nikkei share average, which gained 1.7%. — Reuters
