Performance, Economics & Sustainability to Parking Garages from Page 18
lighting counterparts, Less waste is going to landfills and less coal is being burned in power generation. These environmental benefits can contribute significantly to the sustainability goals for newand existing parking facilities. 5. LEDBenefits IncreaseWith Controls: Unlike convention-
al light sources, the performance of LED systems significantly improves when controls are added. This makes LEDs excellent candidates to take advantage of occupancy sensors, dimming, or facility and campus-wide energy-management programs, which further enhance their overall cost-effectiveness. Increasingly, the combination of digital LED lighting with
digital lighting controls ismaking amore profound impact on the application and selection of LED systems formainstreamgeneral lighting applications. As a general rule, LEDs are more “control- friendly” than conventional light sources commonly used today. The LED light source features a true instant-on capability,
and its life is not negatively impacted by frequent on/off switch- ing cycles, making it ideal for motion-sensing applications. Dim- ming LEDs actually improves their efficiency and extends their service life, whilemaintaining amore constant color temperature through the dimming range than other sources, which allows more advanced control options to be easily incorporated. These combined capabilities allow digital controls to sub-
stantially leverage LED performance – lengthening LED life expectancy and improving system efficacy – making the overall economic equationmore attractive. Beyond capability, the inherent compatibility of LEDs with
digital lighting controls may ultimately hold the greatest poten- tial for economic benefit.With properly designed driver and con- trol components, LEDs can be the core component in digital light engines that interface directly with discrete control devices on- board every light fixture. The result is an “intelligent” light fixture that has the ability
to monitor and respond to its environment, and to perform pre- programmed tasks to further conserve input power and reduce lightingmaintenance. One example of such a task is executing a constant lumen
output over system life to eliminate the waste of over-lighting associated with initial lumens delivered early in a lighting instal- lation. Other potential tasks include monitor and adapt to varia- tions in ambient temperature; monitor system life; and detect a fault in the systemfor quicker troubleshooting andmaintenance. Given the significant advantages of advanced digital light-
ing technologies, LED lighting is quickly becoming the innova- tion of choice for commercial building engineers and parking facility managers across North America for facilities seeking long-term sustainable solutions for saving energy, reducing maintenance and operating costs, andminimizing their environ- mental impact.
Michael Naylor is Acuity Brands Lighting Vice President and General Manager, Outdoor Products. He can be reached at
michael.naylor@
acuitybrands.com
PT
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