Japan's Nuclear Waste Disposal Crisis
Analysis based on 19 articles · First reported Jun 10, 2026 · Last updated Jun 11, 2026
The lack of a viable permanent disposal plan for spent nuclear fuel in Japan creates significant uncertainty for the country's energy sector and nuclear power companies like Tokyo Electric Power Company. This could lead to future reactor shutdowns, impacting electricity supply and potentially increasing reliance on fossil fuels during a global oil crisis. The proposed site on Japan — Minamitorishima faces public and expert skepticism, indicating potential delays and increased costs for waste management.
Japan has resumed operations at the Kashiwazaki-Kariwa Nuclear Power Plant, the world's largest, to address electricity demands amid a global oil crisis. However, this highlights a critical problem: Japan is running out of space for spent nuclear fuel and lacks a viable permanent disposal plan. Cooling pools at several plants, including Kashiwazaki-Kariwa Nuclear Power Plant, are nearing capacity, threatening future power generation. The Japanese government is considering Japan — Minamitorishima, a remote Pacific island, as a potential disposal site, but this proposal faces skepticism and criticism due to past arbitrary actions and environmental concerns. Prime Minister Sanae Takaichi is pushing for more nuclear restarts, which will further exacerbate the waste problem. Japan's preferred recycling plan for spent fuel has stalled, and experts suggest considering direct disposal. The issue is compounded by the massive, unknown high-level nuclear waste from the 2011 Fukushima Daiichi Nuclear Power Plant disaster.
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