It should be obvious that you can really save a staggering amount of energy by auto-dimming unused spaces, especially in areas that require 24/7 lighting, such as carparks, stairwells and any pathways used for emergency exit.
However, the largest amount of wasted lighting energy in commercial space is actually in lighting up the open-plan offices (aka “open offices”) which are common throughout the world. Unlike enclosed spaces where simple on/off occupancy-based lighting control may be a code-compliant, albeit non-ideal compromise, open offices present a big challenge to lighting control because the space is shared. However, with luminaire-level lighting control attainable only with ALEC SLC, you will now be able to instantly convert the fluorescent lights (commonly used in open office lighting) to Smart LED lights and save more than 80% energy, with no disruption to your existing operation. For more details, please click the white paper link next to find out why and how to save vast amounts of otherwise wasted energy in open-plan offices.
Hours of operations: 24/7 = 8760 hours per year.
% of time space is occupied: 10% (e.g carpark, stairwell)
Two Retrofit options:
|Type A T-LED||Alec SLC|
|Adjustable Working Brightness||No||Yes|
|Automatic Dimming when vacant||No||Yes|
|Automatic Dimming with Daylight||No||Yes|
|Ease of Installation||Yes, but only if the ballast is known to be compatible and the lamp holders are still in good conditions||Yes – totally bypass ballast and lamp holders|
|Installation time||< 10 minutes||< 10 minutes|
|Tube Lifespan||< 50,000 hours||50,000-100,000 hours|
|Energy used per year||=0.039 x 8760 = 342kwh||0.0056 x 8760 = 49kWh|
|5-year Electricity Cost
|= 342 x 0.20 x 5= $342||= 49 x 0.20 x 5 = $49|
|5-year Additional SAVINGS @$0.20/kWh||= $342 – $342 = $0||= $342 – $49 = $293|
For more information about how SLC compares against T-LED with computation details and charts, please download this document: