Projects / prj-aalo-x-inl
Aalo-X at Idaho National Laboratory
DOE Reactor Pilot Program test reactor. Zero-power fueled criticality was completed at INL on 4 Jul 2026. Not an operating power plant and not the commercial Aalo pod proposal at Texas A&M.
- Stage
- Commissioning
- Design
- Aalo-X (Microreactor)
- Technology
- Other · unknown
- Operator(s)
- Aalo Atomics
- Vendor(s)
- Aalo Atomics
- Location
- Idaho National Laboratory reactor-pilot area · United States · precision: approximate
Same approximate INL campus pin already used for the Aurora record. Experiment pads for Aalo-X, Mark-0, and Unity were not separately surveyed in the opened DOE notices. The NuclearChain Aalo Idaho pin near 43.52, -112.05 falls on Idaho Falls and is not used. - Coordinates
- 43.533, -112.947
- Electrical capacity
- thermal only (no MWe) · scope: module
- Thermal capacity
- —
- Modules planned
- 1
- Inclusion basis
- microreactor_labeled
- Confidence
- medium
- Last verified
- 2026-10-01 (publication/verification date)
Milestones & dated events
- Aalo-X zero-power criticality: 2026-07-04 · actual · day · first_criticality
Regulatory actions
- None recorded in this release.
Sources
- DOE: fourth criticality, Aalo-X (government_primary, accessed 2026-10-01)
- DOE fact sheet: The Golden Era of American Nuclear Energy Has Arrived (government_primary, accessed 2026-10-01)
- DOE EM note on four Reactor Pilot criticality reviews (government_primary, accessed 2026-10-01)