Analysis of daylighting control systems in 20 office and public spaces in Minnesota and Wisconsin shows that while the automatic daylight harvesting schemes are helping to reduce lighting energy in the buildings, most are not achieving optimal performance, according to a new study by the Energy Center of Wisconsin (ECW).
According to ECW, the median daylighting control system studied was saving 23% of lighting energy, including impacts on heating and cooling. This translated to 915 kWh saved for every kW of lighting controlled. But the average effectiveness (the energy saved versus energy saved with ideal control) of the controls was only 51%. This meant that almost half of the potential savings from these controls was not captured due to imperfect controls operation. Even worse, four of the 20 spaces studied had zero savings.
The low level of effectiveness, says ECW, is evidence of a lack of controls execution. The findings show that successful implementation of automatic daylighting control requires a significant commissioning effort to reach full energy-savings potential.
Read the full daylighting commissioning report from the Energy Center of Wisconsin.
As part of the report, ECW developed a tip sheet on commissioning and calibration and function testing of lighting controls. Recommendations include assigning a single person of the construction team to be responsible for verifying completion of all steps in the daylighting commissioning process, and proper training of the building owner/operator on the controls equipment and systems. Download the tip sheet (PDF)
(http://www.ecw.org/project.php?workid=1&resultid=494)
Related Stories
| Jun 13, 2012
Steven L. Newman Real Estate Institute to hold energy asset conference for property owners, senior real estate managers
Top-level real estate professionals have been ignored as the industry has pushed to get sustainability measures in place.
| Jun 12, 2012
SAC Federal Credit Union selects LEO A DALY to design corporate headquarters
LEO A DALY also provided site selection, programming and master planning services for the project over the past year.
| Jun 12, 2012
Restoration Millwork exterior trim achieves GreenCircle certification
Made from cellular polyvinyl chloride, the full line of Restoration Millwork trim, beadboard and accessories is engineered to look, feel and work like top-grade lumber.
| Jun 12, 2012
Piché joins C.W. Driver as director of business development
Piché will expand upon project opportunities for firm’s Southern California operations.
| Jun 12, 2012
BCA Architects transforms Anaheim schools into dynamic learning environments
BCA Architects was selected to update the district's long-range master plan.
| Jun 11, 2012
Survey reveals emerging trends in parking
Industry-transforming innovations are changing the way we park.
| Jun 11, 2012
Buro Hapold hires new principal Neil Porto
Porto brings a broad depth of expertise in civil and structural engineering to new and existing projects.
| Jun 11, 2012
Historic church gains energy efficiency, retains aesthetics with architecturally rated windows
New windows would need to not only stand the test of time, but also accommodate the aesthetics of an architecturally historic church.
| Jun 11, 2012
Genivar and WSP Group join forces
Genivar concurrently announces a $225 million public bought deal of subscription receipts, a $197 million private placement of subscription receipts and new credit facilities.
| Jun 11, 2012
SimplexGrinnell highlights integrated suite of web-based technologies at NFPA Expo
eservices platform uses the power of the Internet to deliver more value to customers.
