Kairos Power Pours First Concrete For Demonstration Advanced Reactor In Tennessee

Hermes is scaled version of Generation IV fluoride salt-cooled nuclear plant

Kairos Power Pours First Concrete For Demonstration Advanced Reactor In Tennessee
Concrete is poured into the first drilled pier shaft for the Hermes reactor’s foundation. Courtesy Kairos Power.

US-based advanced nuclear reactor developer Kairos Power has completed the first installation of nuclear safety-related concrete for the Hermes Low-Power Demonstration Reactor, marking the start of “nuclear construction” on the project in Oak Ridge, Tennessee.

Hermes is a scaled demonstration of Kairos Power’s Generation IV* fluoride salt-cooled high-temperature reactor (KP-FHR) technology and is the first advanced nuclear reactor to receive a construction permit from the US Nuclear Regulatory Commission (NRC).

Kairos Power first broke ground at the Hermes site in July 2024 and completed excavation in October.

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