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TEPCO restarts reactor at Kashiwazaki-Kariwa nuclear power plant

  • TEPCO shut down the No. 6 reactor, which has a capacity of 1,360 megawatts
Published February 9, 2026 Updated February 9, 2026 11:16am
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TOKYO: Tokyo Electric Power (TEPCO) 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. ‑Reuters

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