Harnessing New Efficiencies in HVAC Usage: A Case Study
When it comes to building energy efficiency, not all buildings are created equal. In fact, there are dramatic differences from building to building that render a “once size fits all” approach to building energy efficiency considerably less than optimally effective. This is especially true when it comes to HVAC energy efficiency in C&I buildings because these buildings use more than half of the electricity consumed in developed countries like the U.S. and Canada, and HVAC units account for a considerable percentage of this energy.
Yes, smart thermostats help, and so can more encompassing building management systems, but the fact of the matter is that HVAC rooftop units hold a lot of additional potential for higher performance which, today, is largely untapped. The key is shifting the paradigm whereby these units operate in isolation and cycle on and off with no regard for what other units on the same rooftop are doing – what areas of the building they’re cooling and what’s happening in these areas.
There are many C&I buildings, for example, where the cooling needs vary dramatically from one spot to another. Theaters are one example. Consider, if you will, how an area where projection equipment is running non-stop requires a lot more cooling that a lobby area. Or think about how a first-run popular movie that’s sold out will have a much larger cooling requirement than a movie next door that’s not so popular.
Having insights into variables like these and being able to control HVAC consumption in a way that considers how and where each RTU is being used can result in dramatic energy efficiency savings and the associated electric bills.
To read more about how a large theater chain was able to achieve approximately 10% reduction in peak electrical demand and a 12% reduction in consumption by adopting technology that enabled RTUs to work collaboratively, link to the story below.