Updates
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October 21, 2025
Clean Electricity for the Tennessee Valley
In this issue: Building the Hermes demonstration reactor; partnering with Google and TVA for Hermes 2; bringing our second Engineering Test Unit to life; making fuel and salt, and more.
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October 20, 2025
Producing a 1960s Molten Salt Coolant for 21st Century Reactors
Kairos Power advanced reactors offer robust, inherent safety with a simplified, compact design. It’s all possible thanks to a molten salt coolant known as “Flibe,” which, combined with TRISO fuel, forms the basis of Kairos Power’s reactor technology. In this article, we’ll take you through our journey from lab to pilot to commercial scale to produce the specialized material and close domestic supply chain gaps.
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May 30, 2025
First Nuclear Concrete
The Kairos Power team kicks off 2025 with major milestones: first nuclear concrete pour for the Hermes Demonstration Reactor, operator training simulator laboratory launches at the University of Tennessee, Knoxville (UTK), Engineering Test Unit (ETU) 2.0 build progress advances, and more.
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December 16, 2024
Kairos Power’s Iterative Approach to Fuel Development
Kairos Power is taking a stepwise approach to developing the capability to produce KP-FHR fuel in-house and establishing commercial fuel fabrication for the fleet. Learn how we are iteratively growing our manufacturing capabilities in parallel with technology development.
