This June 2019 paper by the Lighting Research Center in the U.S. reports on a study examining the potential for using occupancy data from lighting systems to reduce HVAC energy use in large commercial buildings, typically buildings 100,000 ft² (9,300 m²) and greater. It reinforces the concept of employing Building Automation Systems using sensor information from one system to control other systems and having a central monitoring and control location. Challenges and energy saving opportunities on taking this approach are discussed.
Key words: HVAC, large building controls/automation, lighting systems/controls