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
| May 28, 2014
B.R. Fries completes medical center focused on male health
Occupying the building’s entire second floor, the male-centric center is honeycombed with examination and consultation rooms, as well as areas for noninvasive testing.
| May 28, 2014
Moshe Safdie's twin residential towers in Singapore will be connected by 'sky pool' 38 stories in the air [slideshow]
Moshe Safdie's latest project, a pair of 38-story luxury residential towers in Singapore, will be linked by three "sky garden" bridges, including a rooftop-level bridge with a lap pool running the length between the two structures.
| May 27, 2014
Supergreen Venter lab displayed in new walk-through video
ZGF Architects' La Jolla building for genomics pioneer J. Craig Venter and his nonprofit research organization aims to be the first net-zero energy, carbon-neutral biological lab.
| May 27, 2014
America's oldest federal public housing development gets a facelift
First opened in 1940, South Boston's Old Colony housing project had become a symbol of poor housing conditions. Now the revamped neighborhood serves as a national model for sustainable, affordable multifamily design.
| May 27, 2014
One World Trade Center cuts rents due to sluggish activity
Sluggish economy and lackluster leasing force developer The Durst Organization and the Port Authority of New York and New Jersey to reduce asking rents by nearly 10% to $69/sf.
| May 27, 2014
Fire Rated Glass contributes to open lab environment at JSNN
Openness and transparency were high priorities in the design of the Joint School of Nanoscience & Nanoengineering within the Gateway University Research Park in Greensboro, N.C. Because the facility’s nanobioelectronics clean room houses potentially explosive materials, it needed to be able to contain flames, heat, and smoke in the event of a fire. SPONSORED CONTENT
| May 27, 2014
What are your services worth?
The price, cost, and value of design services are explored in a recent Design Intelligence article authored by Scott Simpson, a senior fellow of the Design Futures Council. Value, he explains, represents the difference between “price” and “cost.” SPONSORED CONTENT
| May 27, 2014
Contractors survey reveals improving construction market
The construction industry is on the road to recovery, according to a new survey by Metal Construction News. Most metrics improved from the previous year’s survey, including a 19.4% increase in the average annual gross contracting sales volume. SPONSORED CONTENT
| May 27, 2014
How to develop a dynamic referral system
Compelling your clients to provide you with quality referrals is one of the best ways to build a successful business. Here are ways to ‘train’ your clients to make quality referrals. SPONSORED CONTENT
Sponsored | | May 27, 2014
Grim Hall opens the door to fire safety with fire-rated ceramic glass
For the renovation of Lincoln University’s Grim Hall life sciences building into a state-of-the-art computer facility, Tevebaugh Associates worked to provide students and faculty with improved life safety protection. Updating the 1925-era facility's fire-rated doors was an important component of the project.
