According to EPA’s Energy Star program, lighting consumes close to 35 percent of the electricity used in U.S. commercial buildings and affects other building systems through its electrical requirements and the waste heat it produces. Upgrading lighting systems with efficient light sources, fixtures, and controls can reduce lighting energy use, improve the visual environment, and affect the sizing of HVAC and electrical systems. The Green Proving Ground program is investigating the effectiveness of technologies such as Occupancy Responsive Lighting Solutions and Integrated Daylighting Systems in reducing lighting energy usage while maintaining occupant satisfaction.
Wireless networking, which is relatively new to advanced lighting controls, enables Advanced Lighting Control functionality without the expense of installing dedicated control wiring. Assessments in two federal sites in Northern California showed showed 54% energy savings when fluorescent lamps with dimmable ballasts were retrofitted with wireless ALC, and 78% when the wireless ALC retrofit was coupled with new LED fixtures. InfoGraph Full Report
LED Fixtures with integrated advanced lighting controls dynamically determine light levels using onboard occupancy and daylight sensors. New plug-and-play fixtures installed at the Ralph H. Metcalfe Federal Building in Chicago and the Peachtree Summit Federal Building in Atlanta maintained lighting quality, achieved lighting energy savings of 69% over the GSA average, and yielded a 40% return on investment. Click Here for InfroGraphic - Click Here for 4 Page Report