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Here are the nuclear fission startups backed by Big Tech

Big Tech companies are increasingly turning to nuclear fission startups to secure reliable electricity for their data centers. This shift comes as demand for power accelerates due to artificial intelligence. Startups like Kairos Power, Oklo, Saltfoss, TerraPower, and X-Energy are developing innovative reactor designs that promise to provide stable and efficient energy solutions.

Key points

  • Rise in electricity demand linked to AI growth; Big Tech seeks stable power sources.
  • Nuclear fission sees a resurgence with advancements like small modular reactors (SMRs).
  • Kairos Power has secured government funding and regulatory approval for reactor construction.
  • Oklo, backed by Sam Altman, aims to supply energy to data centers but faced regulatory challenges.
  • Saltfoss plans to build floating SMRs; TerraPower develops the Natrium reactor with heat storage.
  • X-Energy raised significant funding, pursuing high-temperature gas-cooled reactors despite market trends.

Why it matters

  • Nuclear fission investment reflects a trend toward sustainable and reliable energy sources in tech.
  • Historical skepticism towards nuclear energy is being challenged by modern technological advancements.
  • The emphasis on SMRs aligns with the 2025 IT Trends advocating for decentralized, scalable energy solutions.

The collaboration between Big Tech and nuclear startups highlights a transformative shift in energy procurement, blending sustainability with innovation as the demand for reliable power surges.