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Occupant Responsive Lighting

GPG-002, September 2012


A Green Proving Ground (GPG) study of occupant responsive lighting technology in five federal buildings in the Pacific Rim Region demonstrated energy savings over baseline conditions ranging from 27% for spaces illuminated 12 hours a day, five days a week, with regular occupancy patterns, to 63%, for a call center illuminated 18 hours a day, 7 days a week. Payback for the call center was less than 7 years. Click on the infographic below to enlarge.

GPG Findings 002, September 2012. Occupant Responsive Lighting. Opportunity: How much electricity is used for lighting in U.S. commercial buildings? 39% of electricity goes to lighting. 1% of buildings have advanced lighting controls. Technology: How does Occupant Responsive Lighting save energy? Uses 3 control strategies. Occupancy sensing, timer scheduling, and dimming. Measurement and Verification. Where did M and V occur? Lawrence Berkeley National Laboratory assessed the use of responsive lighting systems in 5 federal buildings in California. Results: How did Occupant Responsive Lighting perform in M and V? 27%-63% energy savings vary depending on operating hours. Improved satisfaction. Better quality light with less glare within P100 standards. 6 years payback for call centers. Lit 18 hours a day 7 days a week. Deployment: Where does M and V recommend deploying Occupant Responsive Lighting? Long Operating Hours. Buildings with operating hours greater than 14 hours, utility costs greater than $.11 kwh, and variable occupancy patterns.

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


GPG, GPG Technologies, Lighting, occupancy responsive lighting solutions, lighting solutions