Wyoming is one step closer to hosting one of the most advanced nuclear power plants ever built in the United States.
The U.S. Nuclear Regulatory Commission (NRC) has approved a construction permit for an advanced nuclear reactor being developed by TerraPower near the town of Kemmerer. The project is widely viewed as a landmark moment for the future of American nuclear energy, and Wyoming’s evolving energy economy.
U.S. Senator John Barrasso praised the decision, calling it a major milestone for the state and for next-generation nuclear technology. The permit allows TerraPower to begin construction of its Natrium reactor, a sodium-cooled advanced design that supporters say will deliver reliable, carbon-free power while supporting jobs in a region historically dependent on coal.
“Wyoming is the energy capital of America,” Barrasso said, noting that the state is also the nation’s leading producer of uranium. He argued that the reactor project reinforces Wyoming’s role as a leader in American energy production.
A Historic Moment for Nuclear Power
The NRC approval is notable beyond Wyoming.
The permit marks the first authorization for a commercial nuclear reactor construction in the United States in nearly a decade and the first approval of a non-light-water reactor design in more than 40 years.
The Kemmerer facility, known as the Kemmerer Power Station, will produce about 345 megawatts of electricity, with the ability to temporarily boost output to roughly 500 megawatts thanks to a built-in energy storage system.
That design allows the plant to better integrate with renewable energy sources by storing heat and increasing output when demand spikes.
From Coal Town to Nuclear Innovation
The reactor will be built next to a retiring coal-fired power plant in Kemmerer, a community long tied to Wyoming’s fossil-fuel economy.
State leaders say the project could help transition the local workforce while keeping energy production and jobs rooted in southwest Wyoming.
The plant is being developed through the U.S. Department of Energy’s Advanced Reactor Demonstration Program, a public-private partnership intended to accelerate next-generation nuclear technologies.
Construction activities related to the project have already begun, and the reactor could begin producing electricity around 2030, pending additional regulatory approvals including an operating license.
Why It Matters for Wyoming
The Kemmerer project represents something larger than a single power plant.
Supporters see it as part of a broader strategy to diversify Wyoming’s energy economy, leveraging the state’s uranium resources and energy workforce while developing technologies that could power data centers, AI infrastructure, and future electric grids.
With federal regulators now giving the green light to begin building, Wyoming could soon host one of the most closely watched nuclear projects in the world.
If the Natrium design performs as expected, Kemmerer may become the blueprint for the next generation of nuclear power plants across the United States.
