Hermes 2 Demonstration Plant

under construction

Hermes 2 is Kairos Power's first commercial-scale reactor and the first-ever power-producing Gen IV reactor to receive a construction permit from the Nuclear Regulatory Commission. It will supply up to 50 megawatts of clean electricity to the Tennessee Valley Authority grid, helping to decarbonize Google data centers in Tennessee and Alabama. The plant builds on lessons from the Hermes 1 Low-Power Demonstration Reactor and incorporates fluoride-salt-cooled high-temperature reactor technology. It uses modular construction methods and factory-built small modular reactor concepts to reduce costs and timelines.