Energy Department Announces First Microreactor Experiments in DOME Test Bed
Westinghouse and Radiant were the initial companies selected to test their microreactor designs in DOME, the world's first microreactor test bed at Idaho National Laboratory.
Office of Nuclear Energy
July 1, 2025
Washington, D.C. — The U.S. Department of Energy today made conditional selections for Westinghouse and Radiant to perform the first tests in the Demonstration of Microreactor Experiments (DOME) facility at Idaho National Laboratory. The DOME experiments will be the first of their kind in the world and will fast-track the deployment of American microreactor technologies to keep pace with the nation’s demand for more abundant, affordable, and reliable power. The first fueled reactor experiment will start as early as spring 2026.
https://www.energy.gov/ne/articles/energy-department-announces-first-microreactor-experiments-dome-test-bed