Does the HALEU supply chain become a binding constraint on advanced SMR deployment timelines, independent of licensing and construction readiness?
TerraPower's Natrium, X-Energy's Xe-100, and several other advanced designs require high-assay low-enriched uranium (HALEU, enriched to 5–20% U-235) rather than conventional LEU. US HALEU domestic enrichment capacity is nearly nonexistent: Centrus Energy's DOE-funded demonstration facility in Piketon, Ohio was producing at approximately 900 kg/year as of 2024 against a multi-ton annual requirement for commercial deployment. Russia (TENEX/Rosatom) was the primary global HALEU supplier until sanctions following the 2022 Ukraine invasion. The HALEU fuel supply chain is a sleeper constraint that could independently set the deployment timeline regardless of NRC licensing speed or construction finance readiness.
New Research:HALEU supply chain — enrichment capacity, DOE procurement contracts, domestic enrichment buildout timeline (Centrus, Urenco), allied alternatives, and the timeline risk this introduces for the advanced SMR deployment schedule.
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