Aalo Atomics Signs Fuel Fabrication Contract with Global Nuclear Fuel to Advance Aalo-X Reactor for AI Data Centers
In a significant milestone for the next generation of nuclear energy in the United States, Aalo Atomics has signed a fuel fabrication contract with Global Nuclear Fuel (GNF), a GE Vernova-led alliance with Hitachi, Ltd. and an affiliate of GE Vernova Hitachi Nuclear Energy. The agreement marks a critical step forward for Aalo as it moves toward deploying its first sodium-cooled, extra modular nuclear reactor (XMR), designed specifically to power modern AI-driven data centers.
Through the contract, GNF plans to deliver fabricated fuel rods to Aalo in early 2026. These fuel rods are essential to the commissioning of Aalo-X, the company’s first advanced reactor, which is expected to become the first advanced nuclear reactor built and operated in the United States in more than a generation. The collaboration reflects growing momentum behind advanced nuclear technologies as the country seeks reliable, carbon-free power solutions capable of meeting rapidly expanding digital infrastructure demands.
Fueling the First Aalo-X Advanced Reactor
The fuel rods fabricated by GNF will play a foundational role in enabling Aalo-X to achieve criticality in 2026. Criticality—the point at which a nuclear reactor sustains a controlled, self-supporting nuclear chain reaction—is a key milestone in reactor startup and operation. Achieving this safely and efficiently requires precise engineering, high manufacturing standards, and deep experience in nuclear fuel fabrication.
Under the agreement, GNF is expected to provide uranium dioxide (UO₂) fuel rods fabricated from low enriched uranium (LEU). These rods will then be assembled into final fuel assemblies tailored to Aalo’s proprietary reactor design. The Aalo-designed fuel rods are optimized for the company’s sodium-cooled XMR platform, which aims to combine compact form factors, factory-based manufacturing, and enhanced safety features.
By securing this contract well ahead of its 2026 target, Aalo has significantly de-risked one of the most complex components of advanced reactor deployment—fuel supply and fabrication. Reliable access to high-quality fuel is a cornerstone of any nuclear energy project, and partnering with a globally experienced fuel manufacturer provides both technical credibility and supply chain confidence.
Addressing AI Data Center Energy Demands
Aalo Atomics is positioning its XMR technology as a direct response to the explosive growth in energy demand from artificial intelligence and high-performance computing data centers. As AI models become more advanced and data processing intensifies, energy requirements for data centers are rising sharply. Traditional grid infrastructure, particularly in regions with constrained capacity, is increasingly strained.
Sodium-cooled reactors offer potential advantages in this context. They operate at atmospheric pressure and can achieve high thermal efficiency, while their modular design supports incremental deployment. Aalo’s extra modular reactor concept is engineered for rapid manufacturing and installation, enabling deployment timelines measured in months rather than decades.
Yasir Arafat, CTO of Aalo Atomics, emphasized the importance of partnering with an established fuel fabrication leader. He noted that GNF brings decades of proven fuel manufacturing experience to the table. With this expertise, Aalo believes it can dramatically accelerate the timeline for bringing nuclear power to data centers. The company envisions a future where advanced reactors can be deployed quickly and scaled to gigawatt-level output through factory-based production.
This approach reflects a broader shift in nuclear development philosophy—from large, bespoke projects built over many years to standardized, repeatable reactor units manufactured in controlled environments. By aligning fuel supply with this modular strategy, Aalo aims to create an integrated pathway from design to operation.
GNF’s Manufacturing Expertise and Advanced Fuel Capabilities
For GNF, the partnership represents an opportunity to expand its role beyond traditional boiling water reactor (BWR) fuel into next-generation reactor platforms. Sarah Ortman, Product Director for Advanced Nuclear Fuels at GNF, expressed enthusiasm about supporting Aalo’s mission to achieve criticality in 2026 and beyond.
GNF has decades of experience supplying fuel to the global fleet of BWRs. Its operations are underpinned by rigorous quality assurance programs, advanced manufacturing processes, and a highly skilled workforce. The company’s facilities are designed with flexibility in mind, allowing it to serve both existing reactor fleets and emerging advanced reactor designs.
By leveraging its manufacturing excellence and established supply chain capabilities, GNF aims to reliably deliver both current-generation BWR fuel and advanced fuel products tailored to innovative designs like Aalo-X. This flexibility is particularly important as the U.S. nuclear sector enters a new era characterized by diverse reactor concepts, from small modular reactors to sodium-cooled and fast-spectrum systems.
The collaboration also underscores the importance of industrial partnerships in accelerating nuclear innovation. While startups like Aalo bring new design philosophies and targeted applications, established nuclear suppliers provide the manufacturing scale, regulatory experience, and operational discipline needed to bring projects to fruition.
Regulatory and Site Development Milestones
The fuel fabrication contract comes amid a series of major achievements for Aalo in recent months. The company has secured official site allocation from the Idaho Operations Office of the U.S. Department of Energy (DOE-ID) for the Aalo-X experimental reactor. This allocation enables Aalo to proceed with construction and testing activities at a nationally recognized nuclear research location.
Aalo has broken ground at the test site within the Idaho National Laboratory (INL) and erected its critical facility, marking tangible progress toward reactor deployment. INL has long served as a hub for advanced reactor research and demonstration, providing infrastructure and regulatory pathways tailored to innovative nuclear technologies.
In addition to construction milestones, Aalo has completed both Preliminary and Final Design Reviews involving more than 40 experts. These reviews are essential in validating engineering assumptions, safety systems, and overall design integrity before moving into later stages of construction and operation.
The company has also received an Environmental Assessment Determination from the U.S. Department of Energy. This determination expedites the environmental review process, clearing another key hurdle on the path to reactor startup. Together, these milestones indicate that Aalo’s development program is advancing on multiple fronts simultaneously—design validation, site preparation, regulatory engagement, and now fuel procurement.
A Turning Point for Advanced Nuclear in the United States
If Aalo-X achieves criticality in 2026 as planned, it would represent a landmark moment for advanced nuclear energy in the United States. The country has not seen the deployment of a new advanced reactor design in over a generation. Success would demonstrate not only the technical feasibility of sodium-cooled modular reactors but also the viability of pairing them with energy-intensive digital infrastructure.
The broader implications extend beyond AI data centers. Reliable, carbon-free nuclear energy can play a pivotal role in decarbonizing industrial processes, stabilizing renewable-heavy grids, and supporting national energy security. By focusing on modularity, speed, and scalability, Aalo aims to redefine how nuclear power is delivered in the 21st century.
The fuel fabrication agreement with GNF represents a cornerstone of this vision. Without assured fuel supply and proven manufacturing capabilities, even the most innovative reactor designs cannot move forward. By locking in this partnership now, Aalo has strengthened its path to becoming the first U.S. nuclear reactor company in decades to build and operate an advanced reactor powering an experimental data center.
As the global race to secure clean, firm energy intensifies, collaborations like this one highlight the convergence of advanced nuclear technology and digital infrastructure. For Aalo Atomics, the journey toward criticality in 2026 is not just about starting a reactor—it is about launching a new model for powering the data-driven economy.
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