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Commercial Applications

Case Study: AWeber Communications


Dynamic Lighting Control Reinforces AWeber’s Energetic Atmosphere

AWeber Communications in Chalfont, PA thrives on creative energy. From free-form office space, to tube slide transports, to a dynamic lighting control system that automatically responds to the outdoor environment, AWeber offices combine playfulness with productivity and energy efficiency.


These values are built into the office design, and evaluated regularly. A recent lighting retrofit at their new headquarters resulted in a total lighting energy savings of 32% below baseline. The company attributes 70% of that reduction to dynamic lighting control strategies, including high-end-trim, wireless daylight and occupancy sensors, and automated shade control.
 

Challenge:

AWeber owners identified two main goals for the lighting control system –

Reduce glare and heat gain to facilitate a better work environment

In their old offices, the facilities team constantly dealt with calls about uncomfortable glare and poor lighting levels.

Utilize daylight harvesting to minimize use of electric light

Collaborative workspaces pepper the perimeter; fluorescent lights automatically dim to adjust for available daylight
The building offers team members plenty of natural daylight throughout the work space, but sometimes there is too much light. An automated shading system was needed to help create the right balance of electric light and daylight.

 

Solution:

Digitally-addressable fluorescent dimming ballasts were retrofit or installed into fixtures throughout the facility, maximizing lighting performance, and ensuring appropriate light levels throughout the space.

Lutron Sivoia QS automated shades with solar-adaptive technology are programmed to environmental patterns based on the building’s location and orientation. The shades move silently and subtly over the course of the day to eliminate glare and reduce heat gain, which also helps to reduce HVAC costs. Wireless window sensors also allow the shades to override programmed levels and respond to real-time conditions like cloudy days or shadows.

Wireless daylight sensors communicate with the dimming controls to automatically adjust electric light levels, supplementing available daylight and reducing electricity use when daylight is sufficient. In addition, wireless occupancy/vacancy sensors ensure lights are never left on when a space is vacant. The entire system is centrally monitored, and adjustments can be made in the space, in real time, using the Lutron app for the iPad®.

Daylight penetrates deep into open office spaces, reducing the need for electric light
 

Results:

Wulff Architects, under the direction of Principals Dave Schmauk and Roberta Devlin, designed the building renovation to achieve LEED Silver certification. Company executives were thrilled when they learned that it had actually been awarded LEED Gold. The Lutron Quantum® Total Light ManagementTM system was able to contribute points in three different credits including:
  • EA 1.1 – Lighting Power Reduction
  • EA 1.2 – Lighting Control
  • EA 3 – Measurement and Verification
Wulff Architects and Bala Engineering worked closely with AWeber to provide energy-saving information as part of the renovation. Prior to the renovation, baseline lighting electricity use was 242,830 kWh. Subsequent analysis shows that AWeber has reduced lighting electricity use to 166,489 kWh. Further analysis by Rafael Carrero of Bala Engineering shows that 70% of the savings can be attributed to the lighting control strategies.

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