US Grants First Commercial Nuclear Reactor Construction Permit in Eight Years
The U.S. Nuclear Regulatory Commission (NRC) has issued its first construction permit for a commercial nuclear reactor in eight years, marking a significant milestone for the nation's energy sector. The permit, approved on Wednesday, authorizes a Bill Gates-backed company to proceed with building a sodium-cooled reactor in western Wyoming.
Historic Approval for Next-Generation Technology
This represents the NRC's first approval for a non-light-water commercial reactor in over four decades. TerraPower, the company founded by Microsoft co-founder Bill Gates, filed for the permit in 2024 and is now set to begin construction within weeks. The project, estimated to cost up to $4 billion, targets completion by 2030.
TerraPower President and CEO Chris Levesque stated, "We have spent thousands of manpower hours working to achieve this momentous accomplishment." The plant will be constructed near a coal-fired power plant outside Kemmerer, Wyoming, a town of approximately 2,500 residents located about 130 miles northeast of Salt Lake City.
Revolutionizing Power Generation
Gates and his energy company aim to develop a next-generation nuclear plant that could revolutionize power generation. The 345-megawatt reactor is expected to produce up to 500 megawatts at peak capacity, sufficient to power up to 400,000 homes. Unlike conventional reactors that use water for cooling, this reactor will utilize molten sodium as a coolant.
Gates has emphasized nuclear power's potential as a "gigantic contributor" to powering data centers, which are crucial for artificial intelligence development. He recently met with Energy Secretary Chris Wright, Interior Secretary Doug Burgum, and various members of Congress, noting that the government is "very involved" in the TerraPower project.
Addressing Fuel and Waste Challenges
The plant will use a highly enriched form of uranium, which has recently been obtainable only from Russia. TerraPower has been securing alternative sources to produce the fuel domestically and in South Africa. Additionally, the company claims the reactor will generate relatively less nuclear waste compared to conventional reactors.
However, the federal government still faces challenges regarding spent nuclear fuel, with thousands of tons accumulating at plants nationwide. New Mexico and Texas have resisted becoming dumping grounds in the absence of a permanent solution. In January, the U.S. Department of Energy announced initial steps toward modernizing the fuel cycle, including reprocessing spent fuel and waste disposal.
Context and Historical Background
The NRC last issued a construction permit for a conventional light-water reactor in 2018 to Florida Power & Light Company for a plant south of Miami, though that project remains unbuilt. The last commercial non-light-water reactor in the U.S. was the Fort St. Vrain nuclear plant in Colorado, which operated from the mid-1970s until its closure in 1989.
Construction at the TerraPower site began in 2024, though not on the reactor itself. This approval underscores a growing push toward nuclear power amid increasing electricity demands, particularly from data centers.
