Aalo AtomicsIn Development
Aalo's experimental reactor campus at Idaho National Laboratory, built under the DOE Reactor Pilot Program. Its sodium-cooled Critical Test Reactor - a full-scale Aalo-1 core with 13 uranium-dioxide fuel assemblies - reached first criticality on July 4, 2026; the campus's follow-on Project Ascension reactor is intended to generate 10 MWe and power a co-located experimental data center.
Latest update Sep 8, 2026
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Critical Test Reactor achieved criticality July 4, 2026 - the fourth DOE-authorized advanced reactor to meet the Executive Order 14301 deadline - less than eight months after groundbreaking. Aalo's public technology roadmap now lists the first integrated 10 MWe Aalo-X power plant as a Q1 2027 milestone with groundwork complete, after the earlier end-of-2026 completion target slipped.
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Announced next steps from Aalo Atomics that mention Aalo-X.
Q1 2027
Finish the second, commercial-scale 10 MWe reactor on the Aalo-X campus and demonstrate full 10 MW output, ahead of integrating with the Crusoe-partnered Data Center Proving Ground later in 2027. Aalo's public technology roadmap now lists this first integrated power plant as a Q1 2027 milestone with groundwork complete, after the earlier end-of-2026 completion target slipped. The July 4 criticality post still frames 2027 as the year the new reactor produces electricity and powers an on-site data center.
2027
Target2027 (POC); 2029 (commercial)
Bring the Aalo-X campus to power operations so Project Ascension's 10 MWe reactor can feed an on-site experimental data center - the first nuclear plant purpose-paired with a data center. On July 30, 2026 Aalo named its first named data-center partner for this work, Crusoe: a 2027 proof-of-concept at INL will pair a 50 MWe Aalo Pod with a Crusoe Spark modular data center running Crusoe Cloud, with both companies targeting commercial nuclear-powered AI data center deployments by the end of 2029.
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A factory-mass-manufactured 10 MWe (30 MWt) sodium-cooled, graphite-moderated reactor running on low-enriched uranium-dioxide fuel at near-atmospheric pressure. Sized to ship by truck, with fully passive shutdown and 72+ hour passive decay-heat removal; five Aalo-1s power each Aalo Pod.
Aalo's extra-modular power plant for AI data centers: five Aalo-1 reactors sharing multiple turbines (the company site specifies three) producing 50 MWe. Built from factory-manufactured truck-sized modules, designed to install in months and to phase maintenance so the plant is never fully offline.
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NuScale Power
Full-scale SMR power plant with 12 modules generating up to 924 MWe of carbon-free electricity.
NuScale Power
Self-contained 77 MWe pressurized water reactor module with integrated steam generators.
NuScale Power
Mid-size SMR plant configuration with 6 modules producing up to 462 MWe.
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.