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Two construction projects will impact traffic to and from Denver International Airport (DEN) this week.

Inbound Peña Blvd. lanes (heading to DEN) between Tower Rd. & the RTD bridge will be restored to their pre-existing, permanent alignment. A right inbound lane closure will be in effect from approximately 8 p.m. on May 28 to 4 a.m. on May 29. Additionally, crews will replace a damaged overhead electronic message board sign on May 28 and 29 on outbound Peña Blvd. (leaving DEN). Work is expected to start around 10 p.m. on May 28 and finish around 4 a.m. on May 29, and again around 10 p.m. on May 29 to 4 a.m. on May 30. At approximately 1 a.m., between Tower Road and E 56th Avenue, a slow rolling closure of Peña Boulevard traffic will be implemented for less than 10 minutes. Speeds will be significantly reduced. Crews will be transporting and setting bridge girders on E-470 over outbound Peña Blvd. (leaving DEN) between 11 p.m. on May 30 until 6 a.m. on May 31. Between Jackson Gap Street and E-470, approximately once every hour, slow, rolling closures of Peña will be implemented for approximately seven minutes. Speeds will be significantly reduced during this time.

News and Press

Fourth Solar Array Opens at Denver International Airport


Project Continues DIA’s Investment in Sustainability

DENVER — June 18, 2014 — Denver International Airport’s fourth solar array is now online, bringing the airport’s total solar generating capacity to 10 megawatts.

The Solar IV array is located on the north side of DIA’s property, and is capable of generating up to 2 megawatts, or 3.1 million kilowatt-hours of solar electricity annually. The array has the capacity to offset an estimated 2,200 metric tons of greenhouse-gas emissions each year, and generate enough electricity to power about 500 typical Denver residences.

“DIA was designed to maximize sustainability, and we have embraced and expanded that legacy over the last 19 years,” said airport CEO Kim Day. “We continue to invest in initiatives that reduce our carbon footprint and preserve the natural assets of Colorado. Most significant is our investment in green initiatives that are financially viable, which assures their perpetuity, even in times of economic downturn.”

The developer for the Solar IV project is Oak Leaf Energy Partners. The project cost of about $6 million will be paid for by the owners, Denver Solar IV, LLC. DIA will buy the electricity generated by the array over a 20-year period at a cost per kilowatt-hour that is less than the average cost DIA pays to Xcel Energy for electricity.

Some of the electricity generated by Solar IV will be used directly at DIA, while excess electricity will be sold to Xcel Energy’s grid. The electricity that is used at the airport will power the Denver Fire Department’s Aircraft Rescue and Fire Fighting (ARFF) Training Academy. Constructed in 2001, this state-of-the-art facility includes an 80-foot aircraft live-fire training simulator and two actual regional aircraft for training in numerous types of emergency scenarios. The array will provide 100 percent of the facility’s electricity needs.

With the addition of Solar IV, DIA’s four solar arrays now have the capacity to generate 10 megawatts, or 16 million kilowatt-hours of electricity. That’s enough electricity to power about 2,595 typical Denver-area homes each year. The arrays also have the capacity to offset up to 11,465 metric tons of greenhouse-gas emissions each year. According to the U.S. Environmental Protection Agency, that’s the equivalent CO2 emissions of:

  • 2,414 passenger vehicles annually
  • 1,290,087 gallons of gasoline consumed
  • 12,314,715 pounds of coal burned
  • 26,663 barrels of oil consumed

DIA has long been at the forefront of developing on-airport solar opportunities, having installed its first solar array in 2008. Solar II came online in 2009, followed by Solar III in 2011. The airport now has a total of 42,358 individual solar panels spread across 55 acres of solar fields, making it the second-largest solar array at any U.S. airport.

About DIA’s Environmental Programs

Denver International Airport is one of the most environmentally responsible airports in the world. DIA was built with sustainability in mind 19 years ago. The airport uses natural day-lighting, dedicated deicing pads, a comprehensive deicing fluid collection and recycling system, 400-Hz power and pre-conditioned air supplied to aircraft parked at gates to reduce emissions, and a hydrant system for fuel deliveries to reduce the potential for spills and excessive fuel truck traffic. Other energy conservation measures included high-efficiency motors for fans and other equipment, three solar arrays, low-E insulating glass in most windows, LED lighting and a flexible modular HVAC system design. The airport also supports comprehensive composting and recycling programs, and uses compressed natural gas vehicles.

Denver International Airport is one of the busiest airports in the world. DEN is the primary economic engine for the state of Colorado, generating more than $36 billion for the region annually. For more information visit, check us out on YouTube and Instagram, like us on Facebook and follow us on Twitter. Sign up for DEN’s monthly newsletter Nonstop News.


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Denver International Airport is one of the busiest airports in the world. DEN is the primary economic engine for the state of Colorado, generating more than $36 billion for the region annually. Follow us on socials!