Uranium enrichment (LEU and HALEU)

Why the concentration exists

Enrichment capacity is concentrated because the technology is capital-intensive, energy-hungry, and tightly regulated, which keeps the number of commercial players small. SWU output measures both the capacity of an enrichment plant and the embedded work in the enriched product it sells, so a single cascade of centrifuges takes years to license, install, and bring to commercial output. The input material is uranium hexafluoride (UF6), the form produced by conversion plants, and enrichment therefore links upstream conversion directly to downstream fuel fabrication. SWU economics are steep: producing a kilogram of 19.75% HALEU takes roughly 40 SWU, compared with about 8 SWU for a kilogram of 5% LEU and about 200 SWU for a kilogram of 90% highly enriched uranium.[3][4][5]

What the evidence shows

What it depends on, and what depends on it

Enrichment sits between two adjacent stages of the nuclear fuel cycle and supplies both. Upstream, uranium ore is converted into UF6 at conversion plants operating commercially in Canada, China, France, Russia, and the United States, with estimated 2022 world primary conversion capacity of 62,000 tU and UF6 production of 42,000 tU. Downstream, enriched uranium is shipped to fuel fabrication plants, which have historically been licensed to enrichments up to 5 weight percent U-235 for commercial use, although the industry is now discussing accident-tolerant fuel up to 10 weight percent.[4][8]

Where it sits in the stack

What to watch

Several capacity expansions are timed to come online between 2025 and 2036 and will reshape the Western supply picture. Urenco USA's National Enrichment Facility expansion adds 700,000 SWU incrementally through 2025 to 2027, followed by an additional 2.1 million SWU on new cascades starting production in 2032 and continuing through 2036, raising installed capacity to more than 7 million SWU. Orano Federal Services' Project IKE in Oak Ridge is licensed for 7.4 million SWU per year and is being built under a $900 million DOE Task Order 2 award. Urenco's Almelo facility in the Netherlands is targeted to add 1.5 million SWU per year by 2030.[10][9][11][6][7][12]

HALEU capacity is on a longer track. The American Centrifuge lead cascade at Piketon, Ohio is planned to scale from one tonne of HALEU per year toward a full-scale cascade capacity of 12 tonnes of HALEU per year by 2029. Urenco is constructing the Urenco UK Advanced Fuels Facility at Capenhurst, funded by £196 million from the UK government and supported by a 2025 infrastructure contract with Costain Group, with initial capacity of up to 27 tonnes of HALEU per year and the option to double that capacity, targeted for first production by 2031. Global Laser Enrichment's Paducah plant is targeted to come online from 2030 with up to 6 million SWU per year of capacity.[6][11][1][2]

Related nodes

Sources

1. world-nuclear.org · 2026-02-11T00:00:00
2. world-nuclear.org
3. armscontrol.org
4. world-nuclear.org · Wednesday, 20 November 2024
5. energy.gov
6. world-nuclear.org · 2029
7. eia.gov · 2024
8. nrc.gov
9. powermag.com · June 2
10. urencousa.com · 02 June 2026
11. en.wikipedia.org · 2025
12. cnbc.com