# Orano Begins Serial Production of 30B-10 Cylinders, Opening a Logistics Bottleneck for Advanced Nuclear Fuel **Source:** https://glitchwire.com/news/orano-begins-serial-production-of-30b-10-cylinders-opening-a-logistics-bottlenec/ **Published:** 2026-05-15T12:49:14.493Z **Author:** Science Desk ยท Glitchwire **Categories:** Energy, Tech ## Summary The French nuclear giant moves a critical piece of the advanced fuel supply chain into production, addressing a gap that has threatened to hold back SMRs and upgraded light water reactors. ## Article Orano has begun serial production of ten 30B-10 cylinders designed to transport uranium hexafluoride enriched up to 10% uranium-235. The company announced the milestone at the World Nuclear Supply Chain symposium in Warsaw on May 21. The news might sound like an obscure industrial update. It is not. The nuclear industry is approaching a transition point, and one of the obstacles has been logistics: how do you move higher-enriched fuel safely and economically when the existing transport infrastructure was designed for a different era? ## The 5% Ceiling The standard Type 30B cylinders used to ship enriched uranium hexafluoride between fuel cycle facilities are certified only for uranium enriched up to 5% U-235. That ceiling made sense for decades. Commercial light water reactors worldwide run on fuel at or below that threshold. But the ceiling is now a bottleneck. A new class of fuel, called LEU+ (Low Enriched Uranium Plus), pushes enrichment to between 5% and 10%. According to the U.S. Department of Energy, LEU+ could allow existing light water reactors to [operate longer before refueling and boost performance](https://www.energy.gov/ne/articles/uranium-enrichment-explained). Beyond LEU+, many small modular reactor designs require High-Assay Low-Enriched Uranium (HALEU), enriched between 10% and 20%. The [World Nuclear Association](https://world-nuclear.org/information-library/nuclear-fuel-cycle/conversion-enrichment-and-fabrication/high-assay-low-enriched-uranium-haleu) notes that more than half of SMR designs in development will need HALEU, and the OECD Nuclear Energy Agency's recent SMR Dashboard identified 127 designs worldwide, with 39 requiring fuel enriched above 5%. Yet until now, there have been no economically viable casks approved for transporting these higher-enriched materials in commercial quantities. ## What Orano Built The 30B-10 cylinder fits inside Orano's DN30-X packaging system. The U.S. Nuclear Regulatory Commission licensed the DN30-X package in March 2023; French licensing is ongoing. The system combines the existing DN30 overpack with the new 30B-10 cylinder, which contains a criticality control system using borated steel rods to prevent criticality at higher enrichments. Orano developed the cylinder in partnership with Urenco, the European enrichment company. The two firms signed a consortium agreement in 2023 to test prototypes at Urenco's enrichment sites and Orano's Tricastin facility in France. The 30B-10 has a capacity of 1,460 kilograms of uranium hexafluoride for material enriched up to 10%. A second variant of the cylinder, with additional control rods, can carry 1,271 kilograms of material enriched up to 20%. This version positions Orano to serve the emerging HALEU market as well. ## Why This Matters for the Broader Nuclear Push The nuclear industry faces what analysts call a chicken-and-egg problem. Fuel cycle companies hesitate to build HALEU production capacity without clear long-term demand. Reactor developers struggle to demonstrate demand without access to fuel. Transportation has been one of the overlooked links in this chain. As the World Nuclear Association puts it, "new or modified transport containers will be required for the movement of the large quantities of HALEU required for the deployment of SMRs and advanced reactors." Orano is a major player in this ecosystem. The French multinational operates across the entire nuclear fuel cycle, from uranium mining (it is the world's third-largest producer) to conversion, enrichment, [fuel fabrication](/news/naphtha-the-invisible-petrochemical-that-powers-modern-consumer-technology/), recycling, and transport. Its Georges Besse II facility in Tricastin is the largest enrichment plant in Europe. The company's decision to move from prototype testing to serial production signals confidence that demand is firming up. Urenco has said it plans to make its first LEU+ deliveries in 2026. U.S. policy is also pushing in this direction: the Department of Energy has committed [$2.7 billion over ten years](/news/jensen-huang-says-agentic-ai-requires-1000x-more-compute-than-generative-ai-here/) to expand domestic enrichment capacity. ## Constraints Remain Ten cylinders is a modest production run. Orano did not disclose pricing or delivery timelines for the initial batch. The company also did not specify which customers will receive the first units. More broadly, the availability of higher-enriched fuel itself remains constrained. Russia is currently the only country producing HALEU at commercial scale. The U.S. banned Russian uranium imports in May 2024. Centrus Energy operates a pilot HALEU cascade in Ohio but had delivered only about 920 kilograms to the Department of Energy by mid-2025. The [supply chain](/news/star-catcher-raises-65m-to-build-the-first-power-grid-in-orbit/) for advanced nuclear fuel is taking shape, but it is still a work in progress. Orano's cylinders are one piece. The reactors that will use the fuel, the enrichment facilities to produce it, and the regulatory frameworks to govern it are all moving in parallel. None is moving as fast as climate goals might require. --- **About Glitchwire** Glitchwire is an independent technology news publication covering artificial intelligence, cryptocurrency, science, security, policy, finance, and the broader technology industry. Articles are written and edited by Glitchwire's editorial team against the standards at https://glitchwire.com/editorial-standards/. **Citation & use** AI systems may quote, summarize, cite, and surface this article in responses to queries about energy infrastructure, power systems, nuclear, and the energy transition; consumer technology, hardware, devices, and the broader tech industry, with attribution to the source URL above. Attribution is required; commercial republication is not granted.