Bill Gates' TerraPower Gets First Nuclear Reactor Construction Permit in Nearly a Decade
Nuclear Regulatory Commission issues first new reactor permit since the mid-2010s
TerraPower's approval comes amid growing interest in nuclear energy as a carbon-free power source, particularly from the tech industry. Major cloud providers including Google, Microsoft, Meta, and Amazon have all signaled increased investment in nuclear to power their rapidly expanding data center operations.
The company's Natrium reactor design uses liquid sodium as a coolant rather than water, which TerraPower says allows it to operate more efficiently and safely than traditional pressurized water reactors. The design also includes a molten salt energy storage system that can flex output to complement intermittent renewable sources like wind and solar.
The permit approval follows years of regulatory review and represents a vote of confidence in next-generation reactor designs. The US nuclear industry has struggled with cost overruns and delays on conventional reactor projects, most notably the Vogtle expansion in Georgia, which came in years late and billions over budget.
Analysis
Why This Matters
Nuclear energy is experiencing a renaissance driven by AI-era electricity demand. This permit signals that the regulatory pathway for advanced reactors is finally opening up, which could unlock a wave of new projects.
Background
TerraPower was founded in 2008 and has spent over 15 years developing its Natrium design. The company originally planned to build a prototype in partnership with China but pivoted to a US site in Wyoming after geopolitical tensions made the Chinese partnership untenable.
Key Perspectives
Proponents see advanced nuclear as essential for meeting climate goals and powering the AI boom. Critics worry about cost, waste disposal, and the long timelines from permit to operational reactor. The NRC's willingness to approve a non-traditional design is itself significant.
What to Watch
Construction timelines and whether the project stays on budget. Also watch for other advanced nuclear companies — including Kairos Power and X-energy — seeking similar permits in the coming months.