Parking Structure Example

It’s 10AM on a bright Monday morning and John, the facilities manager at XYZ parking garage, is once again frustrated that his entire parking structure has the lights running during the daylight hours.  He realizes that each one of those fluorescent fixtures is costing him money to light up.  He also knows that there are large portions of his structure (especially around the perimeter) that are already more than adequately lit with free sun light.  If only he could shut off those exact fixtures during the day light hours he could realize great savings on his energy bill.  He tried to shut off the circuits that feed power to those fixtures but that ended up turning off many interior lights as well.  The expense of rewiring the structure to put the perimeter fixtures on separate circuits was too prohibitive.  He felt helpless – forced to keep lights on that were not needed during the day time.  He just looked on in frustration watching those lights come on each day wasting energy and money.

Then John discovered the GreenWorx Lighting Control System by PCS.  GreenWorx offered John the ability to separate the perimeter lights from the interior lights without any rewiring.  John was told that GreenWorx uses a single photo-sensor to perform the day light harvesting for him automatically.  John was impressed by GreenWorx’s simple system architecture that uses the existing electrical power wires to control the system.  He decided to have a GreenWorx Lighting Control System installed.  Installation was much simpler than John imagined – one small module (similar to a ballast) was wired into each light fixture.  In a matter of days John was happily watching those perimeter lights automatically shutting off during the day light hours.

After installation John realized that there were additional light fixtures that only needed to be 50% lit during the day time.  Since GreenWorx can control each individual ballast of a dual-ballast fixture adjusting the system to meet those requirements was easy.  Without changing a single light fixture or wire the GreenWorx setup software was used to add those fixtures to the perimeter lighting zone.  John also added some keypad controllers to the system so that he could manually control the system.  Again the GreenWorx setup software was used to configure what each button of each keypad was to control.

Later, John realized that he could save even more money by reducing the light level on some of his upper floors during the low use hours such as weekends and after midnight.  He discovered that GreenWorx has a built-in weekly scheduler to handle just about any scenario John can throw at it – even holiday schedules! 

John is extremely happy with his GreenWorx Lighting Control System.  It has already saved him more money than he originally imagined.  John is now thinking of new ways – such as adding occupancy sensors and RF remote control – to use GreenWorx to save him even more money.