(OKLO) Oklo Conducts Full-Scale Fuel-Assembly Flow Testing at Argonne National Laboratory
September 25, 2025
Oklo's Argonne flow tests of the Aurora fuel assembly validate simulations and advance production readiness under DOE GAIN.
What’s Happening
This is a press release describing full-scale flow testing of a prototypical fuel assembly conducted by Oklo Inc. at Argonne National Laboratory under a DOE GAIN voucher. Oklo says the tests on the PELICAN loop measured pressure drop and flow distribution, produced experimental data to validate simulations, and moved the Aurora fuel‑assembly design closer to production.
Why It Matters
Overall sentiment is cautiously positive: the technical milestone de‑risks design and strengthens credibility through a national‑lab partnership, but the release contains no financial details. Key names to note are Oklo, Argonne, Jacob DeWitte, the Aurora program, and the DOE GAIN collaboration.
Management Moves
Management commits to using test data to validate models, set manufacturing parameters, and advance from design to production. No specific timelines, cost estimates, or performance thresholds were provided.
Outlook Insights
Opportunities: faster design‑to‑production path and validated manufacturing specs. Risks: unknown funding needs, scaling challenges, and reliance on external test facilities. Catalysts to watch: published benchmark data, finalized manufacturing parameters, and any financial updates.