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Japan Plans to Replace Up to 14 Nuclear Reactors by 2050

The plan would set replacement targets for utilities as electricity demand rises from artificial intelligence data centers and nuclear output stays below pre-Fukushima levels.

  • On Friday, METI proposed replacing two to five aging nuclear reactors by the 2040s and 11 to 14 by 2050, setting a numerical target for the first time since the 2011 Fukushima disaster.
  • Heavy reliance on imported coal, gas, and oil for 60% to 70% of power generation, coupled with rising electricity demand for artificial intelligence, drove The Ministry to reconsider nuclear energy.
  • To address a projected 5.5 million kilowatt shortfall by the 2040s, The Ministry plans 14 new plants with a capacity of about 16 gigawatts.
  • Decommissioning work continues on 24 reactors while Public trust remains fragile following safety concerns involving Chubu Electric Power and the Hamaoka nuclear plant.
  • Under the current energy policy, Japan aims for around 20% nuclear power by fiscal 2040, though rising construction costs create uncertainty regarding the feasibility of these targets.
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Fifteen years after the nuclear disaster in Fukushima, Japan could relaunch its nuclear policy in response to demand, the Japanese Ministry of Economy, Trade and Industry said on Friday 5 June. To meet the growing demand for energy, the archipelago must replace up to five aging reactors in the next 14 years and up to 14 by the 2050s.

·Paris, France
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熊本日日新聞社 broke the news on Thursday, June 4, 2026.
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