Next-generation nuclear power plants require a steady supply of specialized fuel. Advanced nuclear technology company Oklo Inc. locked in that supply by signing multi-year contracts with Centrus Energy Corp. for high-assay low-enriched uranium, known as HALEU.

Under these agreements, Oklo will make prepayments to help Centrus build out new U.S. uranium enrichment capacity. The deals formalize a June 2026 letter of intent between the two companies. Starting in 2029, Centrus will ship fuel from its American Centrifuge Plant in Pike County, Ohio. The contracts cover enough HALEU to run up to five of Oklo’s Aurora powerhouses for several years.

This fuel supply allows Oklo to expand beyond its very first reactor in Idaho, which uses recovered fuel from the Experimental Breeder Reactor II. The new Centrus fuel will run the first phase of Oklo’s planned 1.2 GW power campus in Ohio, support future Aurora projects, and eventually refuel that first Idaho plant.

“Securing fuel is essential to scaling our power business beyond our first reactor in Idaho,” said Oklo CEO and co-founder Jacob DeWitte. “These agreements support our initial Ohio deployments and provide fuel for future Aurora powerhouses. Meta’s support helps advance fuel procurement for the Ohio campus and our work to deliver new, clean, reliable power to the grid.”

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Oklo secures fuel deal to power Aurora Powerhouses; Photo: Oklo

Meta is involved in a way as well. The tech giant previously agreed to prepay Oklo for future electricity, tying those funds directly to project development. That money is now helping Oklo buy its fuel from Centrus.

At the same time, Oklo’s prepayments help Centrus expand its domestic uranium enrichment operations. Centrus recently finished and shipped its first new centrifuge as part of this buildout, and the company has now secured $5.4 billion in customer contracts and commitments for its new capacity.

“These definitive agreements demonstrate that Centrus is ideally placed to meet and support the upcoming substantial commercial demand for HALEU,” said Amir Vexler, President and Chief Executive Officer of Centrus. “Oklo’s prepayments, which add to the others we have previously received, will help fund our buildout as we scale Centrus’ proven American Centrifuge technology and qualified manufacturing processes for commercial production. Together, we are accelerating the restoration of America’s uranium enrichment leadership.”