Kemmerer Unit 1
-
PowerTerraPower’s Kemmerer 1 Enters Construction: Timeline of the Natrium Project’s Road to First Power
TerraPower on April 23, 2026, officially started construction on Kemmerer Unit 1, its flagship Natrium sodium-cooled fast reactor plant in Kemmerer, Wyoming—a milestone that marks the most consequential step yet in the U.S.’s long and fitful effort to move advanced reactor designs from concept into commercial reality. The construction start follows the U.S. Nuclear Regulatory […]