LED Fixtures with Integrated Controls

GPG-024, AUGUST 2015

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 on the infographic below to enlarge.

GPG Findings 024, August 2015, LED Fixtures with Integrated Advanced Lighting Controls. Opportunity: How much energycould be saved annually in the U.S. by converting recessed linear fluorescents to LED? 110.4TWh saved. Equivalent to 10 million homes. 1 TWh = average annual energy use of approximately 92,000 U.S. households. (Navigant Consulting Inc. April 2013 (Revised May 2013). Adoption of Light-Emitting Diodes in Common Lighting Applications) Technology: How do LED Fixtures with Integrated Lighting Controls work? LED FIXTURES WITH ONBOARD SENSORSDYNAMICALLY MANAGE LIGHTING USING OCCUPANCY SENSING AND DAYLIGHT HARVESTING; INTEGRATED CONTROLS REDUCE COMPLEXITY OF INSTALLATION AND SETUP. Measurement and Verification. Where did M and V occur? LAWRENCE BERKELEY NATIONAL LABORATORY assessed plug-and-play LED fixtures with Advanced Lighting Controls (ALC) at the Ralph H. Metcalfe Federal Building in Chicago and the Peachtree Summit Federal Building in Atlanta. Results: How did LED Fixtures with Integrated Controlsperform in M&V? 69% ENERGY SAVINGS OVER GSA AVERAGE: 41% from LED; 28% from ALC. (Retrofit Demonstration of LED Fixtures with Integrated Sensors and Controls, Francis Rubinstein (LBNL), July 2015, p.77). 40% RETURN ON INVESTMENT FOR GSA RETROFITS. 1.4 SIR at current estimated cost and utility rate of $.10 kWh (Ibid, p.18). 25% OF COST SAVINGS DUE TO REDUCED MAINTENANCE. LEDs last twice as long as fluorescent lamps (Ibid, p.18) Payback: Positive Return on Investment for Both Retrofits and Renovations. Retrofit SIR: Current cost with GSA average lighting use and $.10/kWh. 1.4 SIR—savings exceeds investment by 40%. Renovation and New Construction SIR: Current cost with GSA average lighting use and $.10/kWh. 4.4 SIR—savings exceeds investment by 340%. Deployment: RECOMMENDED FOR RENOVATIONS. Consider for retrofits; prioritize facilities with minimal lighting controls, lighting energy use > 3.25 kWh/ft2 and utility rates > $.10/kWh (national average). (Subject to evaluation and approval by GSA-IT and Security) [PDF - 250 KB]

Reference above to any specific commercial product, process or service does not constitute or imply its endorsement, recommendation or favoring by the U.S. government or any agency thereof.

print Share Icon Last Reviewed 2017-08-13