HALEU Bottleneck Favors Incumbents
Aalo Atomics
HALEU is the bottleneck that decides whether advanced reactors ship on time, not reactor hardware. For companies like Aalo, the hard part is not just building a small reactor, it is securing enough enriched fuel at the right assay, then converting it into usable fuel forms on a reliable schedule. Russia, through TENEX, has been the only commercial scale source of HALEU, while U.S. production is only now being stood up through DOE backed programs and Centrus’s Ohio demonstration cascade.
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The dependence is structural, not incidental. Many advanced reactor designs need uranium enriched above the 5% level used by today’s light water reactors, but global commercial capacity for that material has been concentrated in Russia. World Nuclear Association notes Russia has been the only commercial supplier, and DOE moved to ban Russian LEU imports while acknowledging waiver mechanisms were needed to avoid supply disruption.
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The domestic replacement chain is still early. Centrus began HALEU production in Piketon in 2023 and had delivered more than 920 kg to DOE by mid 2025, which is meaningful as proof of capability but small relative to the fuel needs of a scaled reactor fleet. DOE has also launched procurement and transport programs to build out enrichment, deconversion, and logistics capacity around HALEU.
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This matters more for Aalo because its business model is selling power, not equipment. If fuel arrives late, a reactor that is already manufactured and licensed still cannot generate electricity or start a long term power purchase agreement. That turns fuel supply from a procurement issue into a revenue timing issue, and gives incumbents with stronger fuel access, like Westinghouse, a practical advantage.
The next phase of competition in advanced nuclear will be won by the companies that lock in fuel, transport, and fabrication capacity before demand spikes. As U.S. and allied HALEU supply comes online, the advantage will shift toward reactor developers that can pair standardized plants with guaranteed fuel delivery and turn that into bankable power contracts for data centers and industrial buyers.