Sensors Can Help Save Energy Costs by as Much as 30%

The U.S. Department of Energy says that about 13% of all energy produced in the United States today is used to heat, cool, and ventilate buildings, and that “HVAC accounts for about 45% of the average household’s utility costs.” It also says, “…much of this energy is wasted by heating, cooling and over-ventilating unoccupied or partially occupied spaces.” These facts make it increasingly important to reduce energy usage and the costs related to it.

As part of the solution, occupancy and temperature sensors have been suggested by the DOE in that they can play a key role to better controlling energy usage and minimizing waste. In fact, they claim that when used with high efficiency HVAC equipment, they can reduce energy usage by as much as 30% without sacrificing comfort.

Occupancy sensors are highly accurate “presence and occupant counters”. Most occupancy sensors use Wi-Fi radio signals to probe the environment (they do not require internet access to function). And, because these sensors can be powered wirelessly, they can be installed without costly and invasive wiring.

Temperature sensors integrate with a wide range of controllers adding fully programmable building automation control. Temperature sensors can detect when overheating/overcooling occurs and direct the HVAC system to take preventative action. Many also have the ability to measure and report data for a better understanding of a building’s energy usage. Finally, newer Wi-Fi temp sensors permit the remote control of a building’s energy control.

There are also sensors used to better control safety and comfort including CO2, economizer, humidity and others. Some sensors have even been proven to improve indoor air quality. All of which optimize the operations of the HVAC system.

The potential impact of using sensors to control HVAC is far reaching, including using significantly less energy to help reduce emissions attributed to power generation and preservation of the electric grid. Economically, buildings will require less energy to operate, reducing costs for homeowners and businesses. In addition, improved indoor air quality could help prevent negative effects on human health. A sensor’s ability to understand occupancy and temperature and better control a system’s operation is something a traditional HVAC system alone cannot do. And, the fact that they are so easy to install and deploy and really low in cost, makes them worth a hard look to nearly every system installation.

Jackson Systems offers a wide variety of sensors for many applications. To view our offering, visit

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