US firm gets funds for world’s first mass-producible nuclear reactors

Radiant, a US-based company developing the world’s first mass-producible micro nuclear reactors, has secured over $300 million in new funding led by Draper Associates and Boost VC. This capital injection comes just six months after their Series C round and will support the construction of the R-50 factory in Oak Ridge, Tennessee, which aims to produce up to 50 reactors annually starting in 2026. Radiant is also on track to launch its first reactor, the Kaleidos Demonstration Unit (KDU), next year at Idaho National Laboratory’s Demonstration of Microreactor Experiments (DOME) facility. The Kaleidos microreactor is designed to replace diesel generators in remote locations and provide backup power for critical infrastructure such as hospitals, data centers, and military sites. It features innovative safety and operational technologies, including meltdown-proof TRISO fuel, helium gas heat transfer, and passive air cooling that eliminates the need for on-site water. The reactor delivers one megawatt of