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Deployment and Success Stories

Virginia Tech building, Alexandria, VA

The first BEMOSS®-Plus demonstration site is the Virginia Tech building located in Alexandria, VA hosting the School of Public and International Affairs (SPIA) and Center for Public Administration and Policy (CPAP).  This building has an approximate area of 25,000 square feet, and consumes about 14-25 MWh per month.  Its peak load occurs in summer and the peak load is about 61 kW. Monthly electricity bill is about $2,000 per month.

Office building in Alexandria, VA (25,000 square feet)

BEMOSS®-Plus deployment in this building includes:

  • Six (6) Wi-Fi thermostats 
  • Six (6) Modbus power meters
  • One (1) Wi-Fi environmental sensor that can detect CO2 level, noise and humidity
  • One cloud-based BEMOSS®-Plus

The figure below demonstrates HVAC electricity consumption before BEMOSS®-Plus deployment (in June 2014) as compared to that after BEMOSS®-Plus deployment deployment (in June 2016).  HVAC consumption was reduced by 27% after BEMOSS®-Plus was installed.

HVAC electricity consumption before (Top) and after (Bottom) BEMOSS®-Plus deployment

Equipment Bureau building, Arlington, VA

The second BEMOSS®-Plus deployment is the Arlington County Equipment Bureau building, which is a full-service vehicle maintenance and repair facility. BEMOSS®-Plus was deployed to control lighting loads of the office space of about 5,000 square feet located on the second floor of the building. 

Equipment Bureau building in Arlington, VA (5,000 square feet)

Lighting loads in the office space consist of Cree ZR-series troffers with dimmable LED fixtures. Dimming is achieved using the 0-10V dimming wires present at every fixture.  In total, there are about 60 light fixtures in the office space.  BEMOSS®-Plus deployment in this space includes:

  • Three (3) BACnet lighting load controllers for ON/OFF/dimming control of six lighting circuits
  • One (1) BACnet power meter
  • One cloud-based BEMOSS®-Plus

By setting schedules and performing dimming control, electricity savings of over 35% for selected lighting loads has been observed.  The figure below demostrates monthly electricity consumption (kWh) of lighting loads with and without dimming control, from September 2016 to June 2017.

Monthly lighting load (kWh) with and without dimming control


Please click the button below to download our brochure which describes BEMOSS®-Plus and three success stories.

3141 Fairview Park Drive, Suite 200
Falls Church, VA 22042

+1 (571) 399 6863