Kairos Power
UtilitiesCalifornia, United States501-1000 Employees
Kairos Power is a U.S.-based engineering company in the utilities sector, headquartered at 707 West Tower Avenue Suite a Alameda, California 94501, United States, with 501 to 1,000 employees. It focuses on delivering a clean, affordable, and safe energy solution through integrated design, licensing, and demonstration of advanced reactor technology. The company evolved from a broad research effort at U.S. universities and national laboratories and is pursuing fluoride salt–cooled high-temperature reactor (KP-FHR) technology to accelerate demonstration and deployment. Kairos Power emphasizes a test-iteration approach to reduce technical risk and aims for a U.S. demonstration plant before 2030 followed by rapid deployment. In 2021, Kairos Power acquired the K-33 and K-31 sites in Oak Ridge for its reactor demonstration campus; in 2026 it expanded facilities to Tennessee to construct a demonstration plant, and Barnard Construction Company has been contracted to perform site work and excavation at the Oak Ridge site. The company has announced a collaboration with Google to develop an advanced reactor fleet, with Hermes 2 as the initial deployment under that agreement.