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Lighting

OPERATING IMPACT

• $2,600 annual lighting

cost savings

• Improved lighting energy

eciency by 78%

ENVIRONMENTAL IMPACT

23,700 fewer kWhs used:

= 3 cars o the road

= 4 acres of trees planted

GE recasts oce lighting to star energy-efficient LED luminaires

Sleek and stylish recessed xtures lend a clean and modern look

THE SITUATION

Nearly 4,900 sq. ft. of oce space was remodeled in Building 328 at

Nela Park headquarters. The goal? Create a newly inspired, more

energy-ecient, all-LED work environment.

THE SOLUTION

Twin-tube uorescent xtures were changed to GE’s Lumination

™

ET22

LED Luminaires, improving lighting energy eciency 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 oce by optimizing the

spacing of the 2x2' LED luminaires. Thanks to the improved distribution

of light, 45 xtures were eliminated entirely (from 96 uorescent 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.

Like many oces 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 eicient

light to live and work under.”

-Jason Brown, PE, CEM, Certied 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

uorescent xtures 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.

old office new tricks

Lighting 1

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GELightingOPERATING IMPACT© GE 2013 72393 3/2013• $2,600 annual lighting cost savings• Improved lighting energy eciency by 78%ENVIRONMENTAL IMPAC

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