NuCube Energy, Inc. (“NuCube”), a developer of high-temperature modular microreactors, today announced the establishment of its initial on-the-ground presence in Phoenix and the appointment of Michael Green as Chief Legal Officer. The expansion follows NuCube’s recent award under the U.S. Department of Energy Gateway for Accelerated Innovation in Nuclear (GAIN) program, and builds on momentum from its selection by the Department of Energy for the Nuclear Energy Launch Pad (USA) program, a competitive fast-track initiative for advanced nuclear deployment, announced this week.
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Arizona is experiencing accelerating electricity demand driven by data centers, semiconductor manufacturing, and advanced industrial activity. These sectors require continuous, high-density, and increasingly clean energy, placing new demands on the state’s power infrastructure.
NuCube’s microreactor technology is designed to meet this need by delivering reliable electricity alongside industrial-grade heat at temperatures up to 1,100°C. The company’s systems are intended for distributed deployment, including co-location with data centers and industrial facilities.
“Arizona is quickly becoming one of the most important energy growth markets in the country,” said Dr. Cristian Rabiti, Co-Founder and Chief Executive Officer of NuCube Energy. “Between the scale of data center expansion, advanced manufacturing investment, and the need for reliable, high-density and distributed power, the state presents a compelling environment for deployment of our reactors. Establishing a local presence is an important step as we translate technical validation into real-world implementation.”
The Arizona expansion follows two recent federal milestones. NuCube was awarded a DOE GAIN voucher, in collaboration with Argonne National Laboratory, focused on validating autonomous operations, remote monitoring, and predictive maintenance for its microreactor platform. NuCube was also selected, with Idaho State University, for the U.S. Department of Energy’s Nuclear Energy Launch Pad (USA) program, which will support siting of NuCube’s ART Reactor at ISU’s Pocatello campus.
As part of its Arizona expansion, NuCube has appointed Michael Green as Chief Legal Officer and the company’s first Phoenix-based team member. Green joins NuCube from Oklo, where he served as Deputy General Counsel for Strategic Execution. He brings more than two decades of legal experience in nuclear and energy regulation, including senior counsel roles at TerraPower and at Pinnacle West Capital Corporation — parent of Arizona Public Service — where his work included matters related to the Palo Verde Nuclear Generating Station, the largest nuclear power facility in the United States. A former U.S. Navy officer, Green also served in the Naval Nuclear Propulsion Program. Based in the region, he will lead NuCube’s legal function and support partnership development, deployment planning, and engagement with Arizona’s energy and technology ecosystem.
NuCube’s Arizona expansion also builds on growing institutional and academic collaboration in the state.
“Arizona State University is focused on advancing technologies that address global energy challenges while supporting regional economic growth,” said Kyle Squires, Dean of the Ira A. Fulton Schools of Engineering at Arizona State University. “NuCube’s work in remote operation and advanced nuclear systems aligns with areas where we are investing deeply, including digital infrastructure, cybersecurity, and next-generation energy systems. We are excited to support research and talent development that can help bring these innovations into practical deployment.”
Arizona’s economic development leadership also views advanced energy infrastructure as a key strategic growth sector.
“Arizona’s world-class energy infrastructure is fueling growth across semiconductors, advanced manufacturing, digital industries, and more,” said Sandra Watson, President and CEO of the Arizona Commerce Authority. “NuCube’s expansion further strengthens Arizona’s position as a national leader in next-generation energy innovation.”
NuCube’s expansion is also supported by Arizona-based investors. In February 2026, Arizona Nuclear Ventures led a $16 million financing round, with participation from Rob Walton, Jordan Rose Walton, and Emission Reduction Corporation. The capital is planned to support technical validation, regulatory licensing, and early deployment pathways for NuCube’s microreactor platform.
“Reliable and affordable energy is foundational to economic growth,” said Rob Walton. “Technologies that can deliver dependable, flexible and clean power at scale will be increasingly important. NuCube is pursuing an approach we believe is worth supporting.”
“Arizona has a unique opportunity to lead in the deployment of advanced nuclear technologies,” said John Schreiber, General Partner of Arizona Nuclear Ventures and a founding investor in Idealab Arizona. “With federal validation now underway and strong alignment across industry, academia, and government surrounding nuclear power expansion, we believe this is the right moment to establish a long-term presence and begin building the ecosystem required to support commercialization at scale.”
About NuCube Energy
NuCube Energy is developing a high-temperature, modular microreactor designed to deliver both electricity and industrial-grade heat. Capable of reaching temperatures up to 1,100°C, the system provides a clean alternative to natural gas-based industrial heat while enabling reliable power generation in distributed settings, including data centers. The company’s technology emphasizes safety, simplicity, and cost-effectiveness.
For more information, visit www.nucube.energy.
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