How Off-the-Shelf Technologies Slashed 80% of Lighting Energy Use

摘要

Advanced lighting and automated window shading reduced lighting energy usage by nearly 80% in a recent test on one floor of a New York City high-rise during a recent field test. A partnership of Lawrence Berkeley National Laboratory and the Building Energy Exchange (BEEx), the test incorporated four sets of technologies across one 40,000-square-foot floor of an office building. The T5 fluorescent lights on the floor were replaced with dim-mable LEDs, which were adjusted throughout the day to reflect changes in daylight levels and space occupancy. Researchers raised and lowered automated shades to bring in outside views, let in daylight or reduce glare.