NRC issues first U.S. construction permit for a BWRX-300 small modular reactor
The U.S. Nuclear Regulatory Commission has issued its first construction permit for a BWRX-300 small modular reactor to the Tennessee Valley Authority. This project at the Clinch River site marks a significant step forward for advanced nuclear energy deployment in the United States.
Why it matters
Small modular reactors are viewed as a key technology for decarbonizing the energy grid through more flexible and cost-effective nuclear power.
Decision advances BWRX-300 deployment in the U.S. and reinforces growing regulatory momentum across North America
KNOXVILLE, TN (September 29, 2026) – GE Vernova Hitachi Nuclear Energy (GVH) today welcomed the U.S. Nuclear Regulatory Commission’s (NRC) issuance of a construction permit to the Tennessee Valley Authority (TVA) for a BWRX-300 small modular reactor at its Clinch River site in Oak Ridge, Tennessee.
The permit is the first issued in the United States for a BWRX-300 and represents a significant milestone for TVA, GVH and the U.S. nuclear industry as the country advances toward a new generation of nuclear power deployment.
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