Key Facts
• July 29, 2025: Tokyo Electric Power Company (TEPCO) announced delays in fuel debris removal.
• Initial plan: Start full-scale removal in early 2030s; now postponed to fiscal year 2037 or later.
• Government and TEPCO aim to complete decommissioning by 2051; timeline under pressure.
• TEPCO plans to begin with Reactor 3, combining water flushing and solidification methods.
• Estimated 12–15 years needed for preparatory work, including radiation reduction and structure removal.
• Reactor 1–3 contain approximately 880 tons of fuel debris, posing significant challenges.
• Trial removal began in Reactor 2 in September 2024; only 0.9 grams recovered by April 2025.
• TEPCO executive Akira Ono stated simultaneous debris removal from multiple reactors is possible.
• Nuclear Damage Compensation and Decommissioning Facilitation Corporation (NDF) expressed doubts about 2051 goal.
• Experts suggest revising decommissioning plans every five years to address uncertainties.
Summary
Tokyo Electric Power Company (TEPCO) has announced a significant delay in the full-scale removal of fuel debris from the Fukushima Daiichi Nuclear Power Plant, pushing the start date from the early 2030s to fiscal year 2037 or later. This delay raises concerns about meeting the 2051 decommissioning target set by the government and TEPCO. The removal process, considered the most challenging aspect of the decommissioning, involves approximately 880 tons of fuel debris across Reactors 1–3. Preparatory work, including radiation reduction and structural removal, is expected to take 12–15 years. Trial removal efforts in Reactor 2 have yielded minimal results, with only 0.9 grams of debris recovered as of April 2025. TEPCO remains optimistic about simultaneous debris removal from multiple reactors, while experts and the Nuclear Damage Compensation and Decommissioning Facilitation Corporation (NDF) express skepticism about the feasibility of the 2051 goal. Calls for periodic revisions to the decommissioning plan have been made to address ongoing challenges and uncertainties.
