Denver International Airport (DIA) is exploring the possibility of installing a small modular nuclear reactor (SMR) on its campus as part of a $1.25 million feasibility study. The goal: to support DIA’s ambitious plan to become the world’s greenest and most energy-independent airport. The study, which will take about a year, will evaluate whether SMRs—compact, factory-assembled nuclear reactors with a capacity of up to 300 MW—can provide safe, scalable, and reliable clean energy alongside existing solar and wind sources.
Mayor Mike Johnston called the effort “a forward-looking step” as Denver prepares for future climate challenges and a projected increase to 120 million annual airport passengers by 2045. DIA already hosts solar arrays, an expanded electric vehicle fleet, and sustainable construction practices, and airport CEO Phil Washington said the reactor study represents another step in responsibly planning for long-term energy needs.
Small modular reactors offer continuous, 24/7 power and could help complement renewable energy systems, which are more variable. The study will explore available technologies, costs, risks, and regulatory hurdles involved. If pursued, it would become the only nuclear reactor operating in Colorado since the closure of Fort St. Vrain in the 1990s. City officials emphasized the importance of evaluating all zero-emission options to ensure a sustainable energy future for Denver.
