Denver, Colorado: In a groundbreaking step toward sustainability, Denver International Airport (DEN)—currently the third-busiest in the U.S. and sixth globally—has embarked on a nearly $1.25 million feasibility study into whether small modular nuclear reactors (SMRs) could reliably power its operations in the decades ahead.
This initiative aligns seamlessly with Colorado’s recent legislation, effective early August 2025, which officially designates nuclear energy as a “clean energy” resource, granting nuclear projects access to incentives previously limited to wind, solar, and geothermal alternatives.
Sustainability Meets Innovation
DEN officials underscore that this move is not just reactive but visionary. With forecasts projecting 120 million annual passengers by 2045—up from around 82 million in 2024—the airport anticipates its current power consumption of 45 megawatts could scale up significantly, potentially reaching 400 megawatts by mid-century.
Airport leadership—led by CEO Phil Washington—is framing the SMR study as part of DEN’s ambition to become the world’s “greenest airport”, blending innovation with environmental responsibility. Already, the airport has a sprawling 100‑acre solar array, LEED‑certified projects, and an expanding electric vehicle fleet.
A Community-Centered Approach
The announcement, however, was not without controversy. Councilmember Stacie Gilmore, representing the district encompassing the airport, voiced concerns about this high-stakes energy pivot—particularly regarding water usage, nuclear waste management, and the lack of public consultation preceding the announcement.
Responding to these concerns, DEN swiftly paused the formal Request for Proposals for the SMR study as of August 8, 2025, pledging to first ramp up community engagement, receive feedback from District 11 and the Denver City Council, and then shape the study’s scope more inclusively.
What’s in the SMR Feasibility Study?
Once resumed, the six-to-twelve-month study aims to explore multiple critical areas:
- Types and viability of SMR technologies, including energy output potential
- Cost estimates, suitable funding models, and regulatory landscapes
- Safety risks, environmental impact, and nuclear waste protocols
- Integration with DEN’s current infrastructure and future growth plans.
Denver’s Office of Climate Action, Sustainability, and Resiliency echoes that as the region grows and the climate shifts, all zero‑emission energy options must be carefully assessed for environmental balance.
The Bigger Picture for Tourism
For travelers and tourism stakeholders, DEN’s initiative signals a forward-thinking destination that places sustainability at its core. As airports increasingly become gateways not just for transit but for broader regional identity and values, Denver’s pursuit of clean, stable energy—while navigating community concerns—reinforces its image as a progressive and environmentally conscious travel hub.
This is especially resonant for visitors drawn to Denver’s natural beauty and outdoor lifestyle—knowing the airport aspires to minimize its environmental footprint helps enhance the appeal to eco-minded travelers.
What Comes Next?
- Late 2025: Selection of a study vendor, pending council approval
- By mid-2027: Completion of SMR feasibility findings.
- Simultaneous expansion of community dialogues, environmental reviews, and tourism messaging around green infrastructure and responsible growth
Final Thoughts
Denver International Airport’s decision to explore cutting-edge nuclear technology reflects its commitment to environmental innovation, energy independence, and long-term growth. While the road ahead will require balancing technical, regulatory, and community priorities, the airport’s transparent pause for public engagement is a promising model for inclusive infrastructure planning.
For the global tourism community, DEN’s evolving approach crafts a narrative of a city invested in sustainable progress—an airport that not only connects travelers to the Rockies but aspires to preserve the planet for them to explore.
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