Construction begins on Kairos’s fluoride salt–cooled test reactor

July 30, 2024, 3:00PMNuclear News
Workers begin construction at the Hermes site in Oak Ridge, Tenn. (Photo: Kairos Power)

Earlier today, on a site in Oak Ridge, Tenn., that was formerly home to the K-33 Gaseous Diffusion Plant, Kairos Power marked the start of construction on its low-power demonstration reactor. Named Hermes, the 35-MWt test reactor claims status as the first Gen IV reactor to be approved for construction by the Nuclear Regulatory Commission and the first non–light water reactor to be permitted in the United States in more than 50 years.

To continue reading, log in or create a free account!

Related Articles

NRC proposes security regulation changes

June 25, 2026, 2:57PMNuclear News

In 2025, President Trump issued Executive Order 14300, “‘Ordering the Reform of the Nuclear Regulatory Commission,” which directs the NRC to conduct a sweeping, multifaceted overhaul of...