Centrus and Radiant Secure Landmark HALEU Supply Agreement

In a major step forward for the domestic advanced nuclear fuel cycle, US uranium enrichment company Centrus Energy and California-based microreactor developer Radiant have signed a definitive multi-year contract for the supply of high-assay, low-enriched uranium (HALEU). This agreement ensures a domestic, US-origin fuel source for commercial and national security deployments of Radiant's innovative microreactor fleet.

The Kaleidos Microreactor and HALEU Demand

Radiant's Kaleidos is a transportable high-temperature gas-cooled microreactor designed for versatile deployment. The fully containerized unit fits inside a standard shipping container and boasts a thermal output of 3 MW(t) and an electrical output of approximately 1 MW(e). To achieve its compact design and extended operating cycles, the Kaleidos utilizes TRISO fuel, a helium coolant, and graphite blocks, all of which require HALEU to function optimally.

Deliveries of HALEU are planned to begin by the end of the current decade, providing a critical fuel supply chain for next-generation microreactors.

To support this ambitious timeline, Radiant will provide an upfront payment to help Centrus finance the expansion of its domestic commercial enrichment capacity. This strategic prepayment model highlights the growing trend of reactor developers directly investing in fuel suppliers to secure their HALEU needs. By partnering with Centrus, Radiant is securing a reliable fuel source that aligns with national security objectives and reduces reliance on foreign supply chains.

The global commercial supply of HALEU currently remains constrained, making domestic production capabilities essential for the success of advanced reactor designs. HALEU, defined as uranium enriched to more than 5% but less than 20% uranium-235, enables smaller reactor cores, longer operating cycles, and greater design flexibility. Centrus' commitment to expanding its Piketon, Ohio facility will not only fulfill the Radiant contract but also address the broader market shortage of this critical nuclear fuel.

This article was assisted by AI analysis. Please refer to the original source for official information.