US Breaks Ground on First Advanced Nuclear Reactor for Data Centers

Kairos Power broke ground on Hermes 2, an advanced nuclear reactor in Oak Ridge, Tennessee, designed to power data centers operated by Google. The plant, slated to begin operation in 2030, will utilize molten salt as a coolant and TRISO fuel, a uranium preparation encased in protective layers, to enhance safety and efficiency.

This marks the first advanced nuclear reactor built in the US in decades, responding to increasing energy demands from artificial intelligence and cloud computing. The project addresses concerns about aging US nuclear infrastructure and the need for carbon-free power sources.

While the technology has faced past criticism regarding cost and waste, Kairos Power has collaborated closely with US nuclear regulators for over a decade to develop the design. The reactor aims to alleviate strain on the power grid and offer a stable energy supply.

Google has a development agreement to receive 500 MW from multiple advanced reactors, with Hermes 2 delivering the initial 50 MW. The success of this project could pave the way for wider adoption of advanced nuclear technologies and lower energy costs.