The new EconomizerPro™ HVAC Monitoring Systems can record data from commercial rooftop units to find out if they are wasting energy. The system is simply added on to the unit. According to the manufacturer, it then uploads operational data to the cloud, where data is analyzed by sophisticated algorithms, identifying about $3,000 per year, per unit in wasted energy.
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.