University of Utah and Elemental Nuclear Demonstrate Microreactor Powering AI Data Center
This summer marks a historic milestone in nuclear energy research as the University of Utah’s TRIGA nuclear reactor prepares to generate electricity for the first time in its more than 50-year operational history. While the reactor has long served as a vital research tool, it has never before been used to convert its thermal output into usable electrical power. In a groundbreaking demonstration, that electricity will be used to run a compact artificial intelligence (AI) data center, signaling a potential new direction for how advanced computing infrastructure could be powered in the future.
The initiative represents a collaboration between Elemental Nuclear Energy Corp., a company focused on next-generation nuclear microreactors and advanced power systems, and the University of Utah’s John and Marcia Price College of Engineering, specifically its Nuclear Engineering Program. Together, they aim to demonstrate a proof-of-concept system that bridges nuclear energy production and high-performance computing—two fields that are rapidly converging as global energy demands surge.
Traditionally, the TRIGA reactor has been used for educational and experimental purposes, with the heat it generates dissipated through cooling systems rather than harnessed for electricity. This project changes that paradigm. Elemental Nuclear has developed a compact power conversion system that captures a portion of the reactor’s heat and converts it into electricity using a cold helium-based Brayton Cycle. Unlike conventional nuclear power plants, which rely on large steam turbines and expansive infrastructure, this system is significantly smaller and more adaptable, making it well-suited for microreactor applications.
Once operational, the system will produce a modest amount of electricity—estimated at around 2 to 3 kilowatts—which will be used to power a high-performance GPU node running a live AI workload. While this output is minimal compared to the massive energy requirements of full-scale data centers, which often consume hundreds of megawatts, the demonstration serves as an important symbolic and technical step forward.
According to Mike Luther, Founder of Elemental Nuclear, the project is less about scale and more about proving a fundamental concept. The ability to directly link nuclear fission with AI computation could redefine how future data centers are designed and powered. As artificial intelligence continues to expand across industries, the demand for reliable, carbon-free energy sources has become increasingly urgent. Microreactors, with their small footprint and continuous power generation capabilities, are emerging as a promising solution.
The AI component of the project is supported by the University of Utah’s Scientific Computing and Imaging Institute, which contributes expertise in designing and operating advanced computing systems. This collaboration ensures that the demonstration not only generates electricity but also effectively applies it to real-world computational tasks.
The experiment will take place at the university’s TRIGA reactor facility and involves a wide-ranging academic collaboration. Students and faculty from twelve universities across the United States and abroad are participating, making it one of the most ambitious multi-institutional efforts centered on a research reactor. This collaborative model highlights the growing interest in integrating nuclear energy with emerging technologies and underscores the role of academic institutions as innovation hubs.
Dr. Ted Goodell, the reactor manager, emphasized the broader significance of the project. He noted that this could be the first instance of a university research reactor generating electricity, setting a precedent for similar facilities worldwide. Beyond its academic importance, the demonstration suggests that small, inherently safe reactors could eventually be deployed directly at data centers, eliminating the need for long-distance power transmission and enhancing energy resilience.
At the core of the system is the Brayton Cycle power conversion technology. In this setup, helium gas acts as the working fluid. The gas is compressed, heated using the reactor’s water, expanded through a turbine to generate electricity, and then cooled before repeating the cycle. This “cold” or “reverse” Brayton approach differs from traditional high-temperature systems, allowing it to operate efficiently with lower-temperature heat sources like the TRIGA reactor.
The performance targets for the experiment are carefully defined. The system is expected to draw approximately 50 kilowatts of thermal energy from the reactor, convert it into about 13 kilowatts of turbine output, and ultimately deliver a net electrical output of 2 to 3 kilowatts after accounting for system losses. While these figures may seem modest, they are sufficient to demonstrate the feasibility of powering modern computing equipment with nuclear energy on a small scale.
David Blythe, Co-Founder and CEO of Elemental Nuclear, highlighted the importance of this step in the broader context of energy innovation. By pairing compact nuclear systems with advanced power conversion technologies, the project addresses one of the key challenges facing the energy sector: how to meet rapidly growing demand while reducing carbon emissions.
Beyond the immediate demonstration, the project is part of a larger strategy to leverage the global network of TRIGA reactors as platforms for innovation. These reactors, located at universities around the world, collectively represent a vast ecosystem of expertise, infrastructure, and talent. With more than 1,500 nuclear scientists and engineers and tens of thousands of students involved, this network offers a unique opportunity to accelerate the development of next-generation nuclear technologies.
Elemental Nuclear envisions using this network as a testing ground for a range of applications, from new reactor designs to isotope production and integrated energy systems. By working within existing facilities, the company aims to bypass some of the lengthy timelines traditionally associated with nuclear development, enabling faster experimentation and iteration.
Looking ahead, Elemental Nuclear is focused on developing a new class of microreactors capable of delivering reliable, carbon-free energy for a variety of applications. These include industrial operations, remote infrastructure, and increasingly, data centers that support AI and other computationally intensive technologies. The company’s goal is to bring a commercially viable microreactor to market by the early 2030s.
Experiments like the one at the University of Utah are critical to achieving that vision. They provide real-world validation of key technologies and help build confidence among stakeholders, from regulators to potential customers. As the energy landscape continues to evolve, such demonstrations play a crucial role in shaping the future of power generation.
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