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
| Mar 21, 2012
Clary, Hendrickson named regional directors for HDR Architecture
New directors will be responsible for expanding and strengthening the firm throughout the central region.
| Mar 20, 2012
FMI releases 2012 first quarter construction outlook
The last time construction put in place was at this level was 2000-2001.
| Mar 20, 2012
Ceco Building Systems names Romans marketing director
Romans joins Ceco Building Systems with over 15 years in marketing and customer service.
| Mar 20, 2012
UT Arlington launches David Dillon Center for Texas Architecture
Symposium about Texas architecture planned for April.
| Mar 20, 2012
Stanford’s Knight Management Center Awarded LEED Platinum
The 360,000-sf facility underscores what is taught in many of the school’s electives such as Environmental Entrepreneurship and Environmental Science for Managers and Policy Makers, as well as in core classes covering sustainability across the functions of business.
| Mar 20, 2012
New office designs at San Diego’s Sunroad Corporate Center
Traditional office space being transformed into a modern work environment, complete with private offices, high-tech conference rooms, a break room, and an art gallery, as well as standard facilities and amenities.
| Mar 19, 2012
Obama’s positioned to out-regulate Bush in second term
Proposed ozone rule would cost $19 billion to $90 billion in 2020, according to the White House.
| Mar 19, 2012
Skanska promotes Saunders to VP/GM of Bayshore Concrete Products
During his more than 13 years with Bayshore, Saunders has provided products for Victory Bridge in New Jersey, Route 52 Causeway in Ocean City, N.J., and for numerous piers at Naval Station Norfolk and the Norfolk Naval Shipyard.
| Mar 19, 2012
Smith Carter joins forces with Genivar
Smith Carter has a workforce of some 190 employees and designs complex buildings in challenging environments.
| Mar 19, 2012
HKS Selected for Baylor Medical Center at Waxahachie
Baylor Medical Center at Waxahachiewill incorporate advanced technology including telemedicine, digital imaging, remote patient monitoring, electronic medical records and computer patient records.
