Conditional Commitments, and Contracting as a Next Step: The Energy Department's Second Round of HALEU

On August 26, 2025, the U.S. Department of Energy, DOE, said in a release that it had "made conditional commitments to provide high-assay low-enriched uranium (HALEU) to three U.S. companies to meet near-term fuel needs." The round, it says, "will support the testing of two advanced reactor designs and jumpstart a new domestic advanced fuel line." It also names the gap its process is meant to help fill.

What the Release Calls a Gap

HALEU, the release says, "is not currently available from domestic suppliers," and many advanced reactors need it to achieve smaller designs, longer operating cycles and increased efficiencies over current technologies. DOE's answer, by the release's account, is a process of its own. "To help fill this gap, DOE created a process for nuclear developers to request HALEU material from DOE sources, including material from the National Nuclear Security Administration (NNSA)." The commitments were made through DOE's HALEU Availability Program, which, the release says, "was established in 2020 to secure a domestic supply of HALEU for civilian domestic research, development, demonstration, and commercial use."

A reactor that needs a fuel with no domestic supplier currently carries that gap into its own schedule. The release does not say when HALEU would be available from domestic suppliers, and until it is, the release points developers to DOE's own sources.

Three More Companies

This is a second round. DOE says it "allocated its first amounts of HALEU to five companies earlier this year, with three of them requiring fuel delivery in 2025," and that "Three additional companies have been selected for conditional commitments based on prioritization criteria established through the program." The release does not set out those criteria.

It does say what each of the three would use the material for. One company would use it in an advanced microreactor design "that is looking to go critical by July 4, 2026," under DOE's Reactor Pilot Program. Another would use it to establish TRISO fuel lines for that program and for other TRISO-fueled reactors. The third is for a new molten salt research reactor "that is under construction in Texas."

Contracting as a Next Step

"As a next step, DOE will initiate the contracting process to allocate the material to the three companies, some of which could receive their HALEU later this year." The release does not say which of the three, or when in the year. "The allocation process is ongoing," it adds, "and DOE plans to continue HALEU allocations to additional companies in the future."

A conditional commitment leaves the contract still to be written, and the release says only that some of the three could receive material later that year. For a lender weighing a reactor on this path, the date that counts is the one in a signed contract, and the release gives none.