Brief: Tepco Says Restarted Kashiwazaki-Kariwa Nuclear Power Plant No 6 Reactor On Monday

Tokyo Electric Power Holdings

09/02/2026 05:18

TOKYO, Feb 9 (Reuters) - Tokyo Electric Power (TEPCO) 9501.T on Monday restarted the No. 6 reactor at the Kashiwazaki-Kariwa nuclear power plant after a malfunction caused a stoppage last month.

TEPCO shut down the No. 6 reactor, which has a capacity of 1,360 megawatts, after a malfunction was detected in late January, a day after the unit went online for the first time in about 14 years.

TEPCO said the reactor was restarted at 2 p.m. (0500 GMT) on Monday, and it will continue checking the equipment to make sure systems are working as required.

TEPCO plans to restart commercial operation on March 18. Kashiwazaki-Kariwa, the world's biggest nuclear power plant, is TEPCO's first reactor to restart since  2011, when a massive earthquake and tsunami caused the meltdown of its Fukushimi Daiichi nuclear plant.

(Reporting by Katya Golubkova; Editing by Lincoln Feast.)

((jekaterina.golubkova@thomsonreuters.com;))