Aalo Atomics
Builds the Aalo-1, a 10 MWe sodium-cooled reactor, and the Aalo Pod, five of them in a 50 MWe plant aimed at data centers. Its test reactor went critical at Idaho National Laboratory on 4 July 2026.
Facts
Source per value- DesignThe company's lead reactor design name(s) as the company or its regulator names them; semicolon-separated when it markets more than one.
- Aalo-X; Aalo-1; Aalo Pod 134
- TypeReactor coolant/technology family. Gas-cooled fast is separated from thermal HTGR designs; sodium-cooled includes both fast and thermal-spectrum designs.
- Sodium-cooled 2
- Size classDerived from published electric output per module: Micro is 20 MWe or less, Small is above 20 and up to 300 MWe, Medium is above 300 MWe. Legacy heat-only classifications use one third of thermal output as an explicit comparison convention, not a claimed electric rating.
- Micro 3
- MWe / module MWeNet (or gross where only gross is published) electric output of one reactor module as the company or its regulator publishes it. Null for heat-only designs.
- 10 3
- MWt / module MWtThermal output of one reactor module as published by the company or its regulator.
- Not published
- FuelFuel form and enrichment class as published (for example LEU UO2, HALEU TRISO, fuel salt).
- Not published
- Licensing stageFurthest licensing milestone reached with any national regulator: Operating; Construction licensed (construction permit or licence issued); DOE test authorization (a test reactor authorized or built under the US Department of Energy, for example the Reactor Pilot Program or the DOME test bed); Construction under review (construction, site or creation application filed); Design approved (design certification, standard design approval or GDA completed); Design review (formal design review under way, such as UK GDA, CNSC vendor design review or a French safety-options review); Pre-licensing (pre-application engagement only).
- DOE test authorization 1
- RegulatorsNational regulators the company has formally engaged (NRC, CNSC, ONR, ASN, and others), semicolon-separated.
- DOE 1
- Licensing detailThe milestones behind the licensing stage, by regulator, with dates.
- Aalo-X critical test reactor reached zero-power criticality at Idaho National Laboratory on 2026-07-04 under the DOE Reactor Pilot Program, the fourth to do so. Grid or data-center sales still need NRC approval. 12
- Latest milestoneDate of the milestone that sets the licensing stage (for example the day a construction permit was issued or an application docketed).
- 2026-07-04 1
- First siteLocation of the first-of-a-kind commercial or demonstration unit, with the owner or host.
- Idaho National Laboratory (Aalo-X, with a co-located experimental data center planned) 23
- First powerYear the company or its host utility targets for first operation (criticality or commercial operation, as stated) of the first unit. A plan, not a guarantee.
- 2,028 4
- OwnershipPublic (listed shares), Private (venture or privately held), Subsidiary (a unit or joint venture of a larger company) or State-owned.
- Private 2
- TickerExchange and ticker of the company or its listed parent.
- Not published
- ListedFirst trading day of the company's shares (or its listed parent's current ticker) on the exchange named in Ticker.
- Not published
- FundingHeadline funding: equity raised, public listing, government cost-share awards (DOE ARDP, GAIN, Great British Nuclear and others), with amounts and dates.
- Not published
- Data-center dealTrue when the company has a signed, announced agreement (PPA, framework, MOU, investment or capacity reservation) with a hyperscaler or data-center operator.
- Not published
- Data-center partnersHyperscalers and data-center operators the company has a signed or announced agreement with, semicolon-separated.
- Not published
- Data-center dealsWhat each data-center or hyperscaler agreement covers: partner, type of agreement, capacity and date.
- Not published
- HQCountry of the company's headquarters.
- United States 2
- RegionHeadquarters region.
- North America 2
Sources
- DOE: fourth criticality ahead of July 4 accessed 2026-11-11
- POWER: Aalo test reactor reaches criticality accessed 2026-11-11
- WNN: Aalo unveils microreactor option for data centres accessed 2026-11-11
- Aalo: announcing the Aalo Pod accessed 2026-11-11
Get a quote from Aalo Atomics and similar companies
Tell us what you need once. We send it to matching companies and they reply to you directly.