Airport terminal building

Over $100k energy cost savings measured & verified over the first 12 months

Learn More

Building demographics

  • Domestic terminal building
  • > 200,000 m2 floor area
  • Legacy Honeywell BMS
  • Distributed air handling systems
  • Centralized water-side plant


  • Complex and energy intensive HVAC assets
  • Lacked equipment-level energy transparency
  • Difficult to detect and diagnose energy wastage
  • No way of verifying the financial benefit of maintenance services and optimization strategies

Envizi solution

  • Equipment Fault Detection Module
  • Software metering deployed on 50 of the largest AHU’s and RAF’s in the Terminal Building

Key insights

  • Equipment operating 24 x 7 when not required
  • Supply air pressure reset strategies not implemented on VAV AHU’s
  • Opportunity to implement heating and cooling stop time optimization to reduce thermal energy usage at the end of each day
  • Outdoor air dampers open during cold/hot days when CO2 levels are well below 700ppm, causing mechanical energy to be wasted
  • Economy cycle dampers not being utilized for free cooling during favorable ambient conditions


  • Several areas of energy wastage found in first months of operation
  • Demonstrated ability to monitor and analyze aged legacy BMS system
  • Demonstrated the value that data analytics can provide over and above programmed maintenance

Other success stories

Get in touch

Need help understanding how to achieve your sustainability goals with data? Get in touch for a no obligation consult with our team. We’ll be in touch shortly.