Solaris Energy Infrastructure, Inc. (NYSE: SEI) has made an equity investment in Deployable Energy, a Houston-based microreactor company, and plans to collaborate on the commercialization of its small modular reactor technology, according to a press release from Deployable Energy.

Solaris disclosed the investment as part of its second quarter 2026 business update, describing it as providing "early exposure to next-generation nuclear technology." The company said it will work with Deployable Energy on commercialization of its SMR technology to complement its existing generation capabilities.

Deployable Energy develops transportable microreactors intended for defense, industrial, and digital infrastructure applications. The financial terms of the investment were not disclosed.

Bobby Gallagher, CEO and Co-Founder of Deployable Energy, said in the release: "Solaris has established itself as a leader in delivering reliable power infrastructure for demanding applications. Their investment and commercial perspective validate the growing need for next-generation energy solutions that combine resilience, scalability, and long-duration performance."

Bill Zartler, Founder and Co-CEO of Solaris Energy Infrastructure, cited Deployable Energy's progress toward first criticality and its supply chain approach as factors behind the investment. "The speed they've shown getting to first criticality, their differentiated design and approach to avoiding supply chain constraints, gives us confidence that the Deployable Energy team can turn next-generation nuclear products into reality in the relatively near term," he said.

Solaris Energy Infrastructure, headquartered in Houston, Texas, provides power infrastructure solutions including generation, distribution, and operations and maintenance services across data center, energy, and industrial markets.