Energy Management

O'Hare International Airport

The CDA monitors the electricity and natural gas usage for the airport and strives to be more energy efficient.

• Utility meter inventory allows for energy tracking: 850+ electricity meters, 130+ natural gas meters
• CDA facilities have a documented 2010 energy baseline
• Energy usage reports are sent to the CDA facilities staff to manage building systems and equipment
• Metric: percent reduction of energy usage (2023 result from 2010 baseline)
  - 22.4% electricity reduction
  - 13.0% natural gas reduction

Lighting upgrades to light-emitting diodes (LEDs) are now nearly complete at all roadways and around the gates at O’Hare. Additionally, many interior lighting upgrades are completed in the Terminals and in the Terminal Parking Garage. 

Midway International Airport

The CDA monitors the electricity and natural gas usage for the airport and strives to be more energy efficient.

• Utility meter inventory allows for energy tracking: 180+ electricity meters, 50+ natural gas meters
• CDA facilities have a documented 2010 energy baseline
• Energy usage reports are sent to the CDA facilities staff to manage building systems and equipment
• Metric: percent reduction of energy usage (2023 result from 2010 baseline)
  - 16.6% electricity reduction
  - 21.0% natural gas reduction

Significant lighting upgrades to LEDs account for the majority of the electricity usage reduction. Projects include replacement of lights at several parking lots and roadways. In 2021 upgrades to the Heating & Refrigeration Plant and additional mechanical and control upgrades throughout the Terminal and Concourses further improved the energy efficiency activities at Midway.