The global nuclear industry is facing a critical shortage of High-Assay Low-Enriched Uranium (HALEU), a specialized fuel required for the next generation of advanced nuclear reactors. Currently, Russia and China are the primary commercial producers of HALEU, which is enriched to approximately 20% uranium-235 (compared to 3-5% for standard fuel). This reliance on foreign adversaries for a strategic energy resource poses a significant challenge for Western nations, particularly in the wake of the US ban on Russian uranium imports by 2028.
Several US companies are attempting to ramp up domestic HALEU production. Centrus Energy, the only US firm licensed to produce HALEU, has 16 centrifuges running at its Ohio facility and plans to install 11,000 more, with a full build-out estimated to take six to seven years. The Department of Energy has awarded Centrus, Orano, and General Matter a combined $2.7 billion ($900 million each) to boost domestic enrichment services. However, this is seen as a down payment on a much larger need. TerraPower, Bill Gates' nuclear technology company, has already pushed back the operational date for its Natrium small modular reactor from 2028 to 2030 due to HALEU unavailability, despite receiving $2 billion from the DOE and raising $1.4 billion in private capital.
The broader nuclear fuel supply chain, from uranium mining to enrichment, is struggling to keep pace with projected demand. Only one active enricher operates in North America: Urenco's National Enrichment Facility in New Mexico, which fulfills about one-third of US enrichment demand. Urenco plans to expand its capacity by nearly 50% by 2036 and introduce HALEU production, but industry experts deem this insufficient. The US, with a domestic enrichment capacity of 4.3 million Separative Work Units (SWU) against a requirement of 15.6 million SWU, relies heavily on imports, with 98% of its uranium consumed by reactors being foreign sourced. If the US quadruples its nuclear capacity by 2050, as targeted, current domestic enrichment could only meet 7% of the demand, underscoring the severe supply-demand imbalance.
The challenge extends beyond HALEU. Canada-based Cameco, a major North American uranium miner, has 30% of its uranium mining capacity, primarily in the US, shut in. The company warns that bringing new mines online can take 15 to 20 years, making it difficult to match the timeline for new reactor construction. Analyst and industry executives emphasize the need for a rapid acceleration in the build-out of the entire fuel chain before the next wave of reactors becomes operational. The uncertainty surrounding continued waivers for Russian uranium imports until 2028 further complicates investment decisions, as companies need clear signals that Russia will remain out of the Western supply chain to commit to long-term investments.
