Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

BACnet at Georgia Tech



Donald Alexander, Cornelius Ejimofor, David Holmberg


The Van Leer building at Georgia Tech was selected for a pilot project to study the feasibility of using an RTP-based temperature setback approach to energy savings for the campus. Georgia Tech saved approximately 7000 kWh of power and $1000 using the RTP conservation strategy in the Van Leer building. This corresponds to a 1.1% cost savings on air conditioning and ventilation. The data obtained in the Van Leer building allowed the calculation of a power savings density value that could be applied campus wide and which gave an estimated yearly campus-wide cost savings estimate of $190,000. There was less than a one year payback on the investment necessary to implement the control strategy. A benefit, beyond cost avoidance, is that Georgia Tech now has a method based on the dynamics of electrical cost to alter control parameters to allow more saving strategies in the future. Additional strategies are being studied that use the RTP pricing projections to result in additional cost avoidance.
ASHRAE American Society for Heating, Refrigeration and Air Conditioning Journal


automated demand reduction, BACnet, control strategy, electric power, real-time pricing, RTP, temperature setback


Alexander, D. , Ejimofor, C. and Holmberg, D. (2007), BACnet at Georgia Tech, ASHRAE American Society for Heating, Refrigeration and Air Conditioning Journal, [online], (Accessed April 14, 2024)
Created October 31, 2007, Updated October 12, 2021