TRISO-X Fuel Fabrication

TX-1 in Oak Ridge, Tennessee is on schedule for completion in the first half of 2028; as of the Q2 2026 earnings call (August 13, 2026), vertical construction was roughly 80% complete, up from 56% a quarter earlier, and on August 24, 2026 TRISO-X announced the facility has moved into its next construction phase, starting interior buildout and auxiliary-building work as vertical construction on the main structure nears completion. In February 2026 TRISO-X received the first-ever Part 70 HALEU fuel-fabrication license - an initial 40-year NRC license covering TX-1 and TX-2 - and TRISO-X pebble fuel is undergoing irradiation testing at Idaho National Laboratory. In July 2026 an $11M Tennessee state grant backed a planned expansion of the campus to add a second commercial facility (TX-2) and an R&D center (TX-L); together the three are designed to fuel about 55 Xe-100 reactors. On August 4, 2026 TRISO-X acquired 70 more acres at the adjacent Horizon Center Industrial Park, growing the total campus to roughly 180 acres, and on August 6, 2026 X-energy signed a definitive LEU/HALEU enrichment supply agreement with Centrus Energy (deliveries starting 2030) to help fuel the buildout - together making it one of the world's largest commercial-scale nuclear fuel campuses.

Production Target

8 metric tons TRISO fuel/year

TX-1 Construction Progress

~80% complete

(Q2 2026, up from 56% in Q1); next-phase interior buildout and auxiliary-building work started Aug. 24, 2026

Fuel Type

TRISO (tristructural isotropic) particles

Location

Oak Ridge, Tennessee

NRC License

First-ever Part 70 HALEU license

Feb. 2026, 40-yr

Serves

Xe-100 and other HTGR designs

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  In Development

  Xe-100

  80 MWe high-temperature gas-cooled reactor (HTGR) using TRISO fuel, deployable as single unit or in a four-pack configuration for 320 MWe.

  Electrical Output

  80 MWe

  Four-Pack Output

  320 MWe

• 

  In Development

  VOYGR-12

  NuScale Power

  Full-scale SMR power plant with 12 modules generating up to 924 MWe of carbon-free electricity.

  Total Output

  924 MWe

  Modules

  12 × 77 MWe

• 

  In Development

  NuScale Power Module

  NuScale Power

  Self-contained 77 MWe pressurized water reactor module with integrated steam generators.

  Electrical Output

  77 MWe per module

  Thermal Output

  250 MWt per module

• 

  In Development

  VOYGR-6

  NuScale Power

  Mid-size SMR plant configuration with 6 modules producing up to 462 MWe.

  Total Output

  462 MWe

  Modules

  6 × 77 MWe

• 

  In Development

  Aurora Powerhouse

  Oklo

  Oklo's fast-fission powerhouse product line is designed for build-own-operate deployment, targeting customers that want firm clean power in a smaller footprint than traditional large reactors.

  Electrical Output

  15-75 MWe

  Target First Unit

  Late 2027-2028