The CDA monitors the electricity and natural gas usage for the airport and strives to be more energy efficient.
In 2016, CDA was awarded a $2,300,000 two-year energy efficiency grant from the State of Illinois Department of Commerce and Economic Opportunity. This grant supported several energy efficiency projects: roadway lighting, both interior and exterior terminal lighting, office lighting, parking garage lighting, chiller upgrades, and the installation of variable frequency drives (VFDs). These projects are anticipated to save over $1,500,000 in electricity costs annually.
In 2013, CDA completed construction of the Consolidated Rental Car Facility achieving U.S. Green Building Council LEED Silver Certification and installed 24 roof-mounted 1-kilowatt wind turbines atop the Midway Economy Parking Structure. The wind turbines are anticipated to save over $9,000 in electricity costs annually.