GE | ET Series | Case Studies | GE ET Series Case Studies

GE
Lighting
old office new tricks
GE recasts office lighting to star energy-efficient LED luminaires
Sleek and stylish recessed fixtures lend a clean and modern look
TH E S I TUATI O N
Nearly 4,900 sq. ft. of office space was remodeled in Building 328 at
Nela Park headquarters. The goal? Create a newly inspired, more
energy-efficient, all-LED work environment.
TH E S O LUTI O N
Twin-tube fluorescent fixtures were changed to GE’s Lumination™ ET22
LED Luminaires, improving lighting energy efficiency by 78%. Now, Building
328 uses nearly 23,700 fewer kWhs of electricity a year—a $2,600 savings
based on 3,130 hours of operation and a $0.11 kWh rate.
Light uniformity was maximized across the office by optimizing the
spacing of the 2x2' LED luminaires. Thanks to the improved distribution
of light, 45 fixtures were eliminated entirely (from 96 fluorescent to 51 LED).
Enhanced vertical illuminance and wall uniformity also reduces eye strain
for occupants, who note the area appears “more spacious” since the switch.
O P E R AT I N G I M P A C T
• $2,600 annual lighting
cost savings
• Improved lighting energy
efficiency by 78%
Like many offices today the space was overlit. By following IES
recommendations we were able to light the area to 30 footcandles
to allow for proper human performance. It’s a beautifully efficient
light to live and work under.”
-Jason Brown, PE, CEM, Certified Lighting (CL) Professional
Dimming controls and a daylight harvesting system were added to
capture even greater energy savings while maintenance, meanwhile,
has been all but eliminated. Rated for up to four times the life of the
fluorescent fixtures they replaced, the LED luminaires are without
customary lamps and ballasts that require routine change out.
For more information about the GE Lighting products used in this project,
visit gelighting.com.
E N V I R O N M E N TA L I M P A C T
23,700 fewer kWhs used:
= 3 cars off the road
= 4 acres of trees planted
© GE 2013 72393 3/2013
Download PDF