Nuclear power in Japan

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Japan started using nuclear power for electricity generation in 1966, and it generated approximately a third of the country's electrical power prior to the Fukushima accident in 2011. After a near-nationwide shutdown following the accident, the share has recovered to 9% in 2025. The country's nuclear power industry was heavily influenced by the Fukushima accident, caused by the 2011 Tōhoku earthquake and tsunami. After the Fukushima accident, all reactors were shut down temporarily. As of November 2024, of the 54 nuclear reactors present in Japan before 2011, there were 33 operable reactors but only 13 reactors in 6 power plants were actually operating. A total of 24 reactors are scheduled for decommissioning or are in the process of being decommissioned. Others are in the process of being reactivated, or are undergoing modifications aimed at improving resiliency against natural disasters; Japan's 2030 energy goals posit that at least 33 will be reactivated by a later date. The Fukushima...

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