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
| Sep 24, 2012
Reed Construction completes Lafarge headquarters in Chicago
Reed Construction was contracted to complete the full third floor build-out which included the construction of new open area work space, private offices, four conference rooms with videoconferencing capabilities and an executive conference boardroom.
| Sep 24, 2012
Chicago Lakeside shortlisted for the Sustainia Award
The “Lakeside Idea” is about bridging a brownfield industrial past to a green lifestyle future, from steel mill to innovation mill.
| Sep 24, 2012
$3.8-million athletic field and track opens in Glen Head, N.Y.
The complex also includes a new, one-story, multi-purpose building that serves as the main entry port to the athletic facilities.
| Sep 21, 2012
AAMA and WDMA release updated review and forecast that predicts industry trends
Significant volume is expected to return to the entry and interior door market as new construction demand is expected to grow at double-digit rates, outpacing remodeling and replacement activity as the housing market recovers.
| Sep 20, 2012
Mid-box retail study shows lack of available sites in Chicago
Existing supply is tight everywhere and almost non-existent in the most attractive zones.
| Sep 20, 2012
Forrester begins construction of freestanding cancer center in Montgomery County, Md.
The new 51,000-square-foot building will include two linear accelerator vaults for radiation equipment.
| Sep 19, 2012
Modular, LEED-Gold Certified Dormitory Accommodates Appalachian State University Growth
By using modular construction, the university was able to open a dorm a full year earlier than a similar dorm built at the same time with traditional construction.
| Sep 19, 2012
ABI back into positive territory
South continues to lead regions in demand for design services.
| Sep 19, 2012
HGA Architects & Engineers moves offices in San Francisco
HGA’s San Francisco office has grown by nearly 25% in the past two years, adding shared expertise to the 120-person California practice, which includes the Sacramento and Los Angeles offices.
| Sep 19, 2012
Sasaki opens office in Shanghai
Office supports firm’s present and future work in China, throughout Asia.
