Revealing DDC Fact From Fiction

Building Efficiency

The Truth Behind Building Automation

Automated Buildings, January 24, 2014

Question: Can my building automation system help cut down my utility bill?

Answer: Building automation is a control method for the mechanical systems within your building. You may not have new equipment or VFDs (Variable Frequency Drives) on every motor, but there are likely still savings that you could drive with a new automation system.

Take for example a small office building with constant volume package units. What could you possibly get for energy savings in this environment? Fan energy, or the energy used to blow air out of the grill in your office, comprises almost 70% of the energy consumption in a building. By controlling the fans more tightly with a schedule you can save up to 15% on your bill every year. To take it one step further, by increasing cooling and decreasing heating setpoints during peak usage hours you can alleviate 5-10% consumption; all with minimal impact to your workforce. That’s up to 20-25% reduction without any mechanical upgrades.

Question: What if I’m tired of my current controls vendor? How hard is it to switch vendors?

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