Aalo Atomics Nets $100M to Forge Nuclear-Powered Data Center Future

Aalo Atomics, an Austin-based nuclear tech startup, just wrapped up a $100 million Series B funding round to kickstart its microreactor roadmap—starting with the Aalo-X prototype expected to go live in summer 2026 at Idaho National Laboratory—paired with an experimental data center next door to test the concept of co-locating power and compute. The round, led by Valor Equity Partners and backed by NRG Energy among others, brings total funding to over $136 million and supports the company’s goal to mass-produce 50 MW “Aalo Pod” power plants that leverage modular design, sodium-cooled reactors, and economies of scale to deliver energy at an estimated 3¢/kWh—on par with natural gas or solar alternatives, all while accelerating clean, reliable power for AI-hungry data centers. The U.S. Department of Energy’s pilot program is helping fast-track approval and regulatory processes.
Sources:
POWER Magazine
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DataCenterDynamics
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TechCrunch
Key Takeaways
– Ambitious Timeline & DOE Support: Aalo aims to have the Aalo-X microreactor up and running by mid-2026, aided by accelerated approval under the DOE’s Nuclear Reactor Pilot Program.
– Data Center Pairing as a Core Strategy: The company is prototyping not just a reactor but an adjacent experimental data center—making co-located power-compute integration a foundational part of its business model.
– Competitive Economics & Scale Vision: With a target of ~$0.03 per kWh and modular “Aalo Pods” (5 microreactors + turbine, 50 MW), Aalo plans to scale to gigawatt deployment using factory built units to compete with new gas or solar plants.
In-Depth
Aalo Atomics stands at a fascinating crossroads where nuclear innovation meets data center demand. Fresh off a $100 million Series B round led by Valor Equity Partners—with participation from NRG Energy and others—the company is racing to launch its inaugural microreactor, the Aalo-X, by summer 2026 at Idaho National Laboratory. This ‘Aalo-X’ plant isn’t just a test reactor—it’s designed to go live next to a purpose-built, experimental data center, serving as proof of concept that clean nuclear energy can be co-located with compute infrastructure to deliver fast, reliable power with minimal transmission complexities.
The technology roots trace back to the DOE’s open-source “MARVEL” microreactor design, with Aalo’s CTO having previously led that initiative. The startup has advanced assembly through a 40,000-square-foot factory in Austin and plans to replicate its modular “Aalo Pod” model—clusters of five small sodium-cooled reactors feeding a turbine, totaling 50 MW per pod. Economies of scale and factory fabrication are central to its blueprint, aiming to bring costs in line with $0.03/kWh—a competitive target that puts it shoulder to shoulder with new natural gas and solar plants.
Backing and regulatory momentum matter too: Aalo’s project is part of the DOE’s Nuclear Reactor Pilot Program, which sidesteps typical lengthy NRC licensing to drive faster deployment. If Aalo can meet its aggressive timeline and commercial aspirations, it may mark the first modern, operational advanced nuclear plant in the U.S. in decades and offer a cleaner, more scalable path to powering AI-hungry data centers in the years ahead.