World’s Largest Nuclear Plant Reopens in Japan After Long Shutdown

Japan has restarted the world’s largest nuclear power plant, marking a major shift in the country’s energy policy nearly 15 years after the Fukushima nuclear disaster.

The Kashiwazaki-Kariwa facility, located along Japan’s west coast, was taken offline in 2011 after a massive earthquake and tsunami triggered meltdowns at another nuclear plant, leading Japan to suspend most nuclear operations nationwide.

This week, one reactor at the plant was brought back online after receiving approval from regional authorities, despite lingering opposition from local residents. Many residents remain concerned about evacuation plans, earthquake risks, and the operator’s safety record. Public opinion in the area remains divided, with surveys showing a majority still opposed to restarting the facility.

Japanese officials argue that nuclear power is necessary to reduce reliance on fossil fuels, cut carbon emissions, and meet growing electricity demand, particularly as energy use rises from data centers and artificial intelligence.

The government plans to significantly increase nuclear power’s share of the national energy mix by 2040, alongside expanded renewable energy.

The restart comes as Japan continues the decades-long cleanup of Fukushima, a reminder that public trust in nuclear safety remains fragile.