Friday, Jul 24, 2026 The claims desk. Receipts included. POWERED BY LENZ ↗
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SCIENCE

The Claim

Nuclear fission will continue to be used as an energy source over the next 20 years.

Verified by Lenz ·

The Short Version

This claim is clearly true. With approximately 440 nuclear fission reactors currently operating worldwide, over 70 under construction, and every major energy forecasting body (IAEA, IEA, World Nuclear Association) projecting continued and growing nuclear capacity through at least 2050, nuclear fission will unambiguously remain in use as an energy source over the next 20 years. Even the most pessimistic credible analyses acknowledge record nuclear output and hundreds of reactors operating well into the 2040s.

Caveats

  • Nuclear's share of global electricity has declined to ~9%, down significantly from its 1996 peak — 'continued use' should not be confused with growing dominance.
  • The IAEA projects closure of roughly 325 GW of nuclear capacity by 2050 due to reactor aging, meaning new construction must offset a large retirement wave for net growth to occur.
  • Growth in nuclear capacity is heavily concentrated in Asia (especially China); outside China, many regions have seen net declines in operating reactors since 2005.

The Receipts

  1. IAEA Raises Nuclear Power Projections for Fifth Consecutive Year

    IAEA

  2. National targets for new nuclear 'far exceed a tripling of global capacity'

    World Nuclear News

  3. IEA Scenarios and the Outlook for Nuclear Power

    IEA

  4. Advantages and Challenges of Nuclear Energy

    Energy.gov (DOE)

  5. Executive Summary - World Nuclear Association

    World Nuclear Association

  6. Plans For New Reactors Worldwide

    World Nuclear Association

  7. IEA forecasts nuclear share growth

    IEA

  8. Nuclear Generation Set New Record In 2025 And Will 'Continue Rising Steadily', Says IEA

    NucNet

  9. IAEA Predicts Doubling Nuclear Capacity by 2050—SMRs and Reactor Life Extensions Lead the Way • Carbon Credits

    Carbon Credits

  10. IEA forecasts continued nuclear capacity growth to 2050

    International Energy Agency (IEA)

+ 15 more sources — see the full list on Lenz

Filed Under

nuclear fission