Available Technology

Occupancy Sensing Using Wi-Fi Routers

In 2015, commercial and residential buildings accounted for 40% of the energy consumption in the United States, according to the U.S. Energy Information Administration. As the owners of these buildings seek to decrease costs and reduce energy consumption they have begun to adopt building energy management systems (BEMS). BEMS have developed alongside intelligent building technologies such as sensors and wireless networks to manage energy usage, and according to expert services firm Navigant the global BEMS market is expected to grow at an estimated CAGR of 18.2% to $12.8 Billion in 2025. Occupancy sensors are an important component of BEMS, allowing buildings to reduce electricity consumption by managing HVAC systems, plug loads, and lighting during times of low or no occupancy. Research firm Markets and Markets predicts that the global occupancy sensor market will grow at an estimated CAGR of 19.5% to $2.78 Billion in 2020. However, current occupancy sensors have high upfront costs, are vulnerable to false triggering, and use energy themselves, which has limited their adoption to only very large commercial buildings. Overcoming these hurdles is critical for the next generation of BEMS and the reduction of building energy consumption.
Patent Abstract: 
In 2015, commercial and residential buildings accounted for 40% of the energy consumption in the United States, according to the U.S. Energy Information Administration. As the owners of these buildings seek to decrease costs and reduce energy consumption they have begun to adopt building energy management systems (BEMS). BEMS have developed alongside intelligent building technologies such as sensors and wireless networks to manage energy usage, and according to expert services firm Navigant...
Benefits 
Uses established hardware platform, with which building owners, occupants, and customers are comfortable -Enables occupancy-based control for the roughly ~98% of buildings which do not currently have it -Low energy occupancy detection -Increased occupant counting accuracy -Real time occupant tracking
applications 
Internal Laboratory Ref #: 
NREL ROI 16-86, 17-12
Lab Representatives
Share to Facebook Share to Twitter Share to Google Plus Share to Linkedin