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 23, 2012
MBI Modular Construction Campus Launched on BDCUniversity.com
White Papers, Case Studies, Industry Annual Reports, published articles and more are offered.
| May 23, 2012
Gifford joins Perkins Eastman as principal
Design and planning expertise in science, technology, education, and healthcare.
| May 23, 2012
McRitchie joins McCarthy Building as VP, commercial services in southern California
McRitchie brings more than 18 years of experience in the California construction marketplace.
| May 23, 2012
Arizona Army National Guard Readiness Center awarded LEED Silver
LEED certification of the AZ ARNG Readiness Center was based on a number of green design and construction features SAIC implemented that positively impacted the project and the broader community.
| May 23, 2012
New hospitals invest in data centers to manage growth in patient info
Silver Cross became one of the first hospitals to install patient tracking software so families know where a patient is at all times. New communication equipment supports wireless voice and data networks throughout the hospital, providing access to patients and their families while freeing clinicians to use phones and computers where needed instead of based on location.
| May 23, 2012
Summit Design+Build selected as GC for Chicago restaurant
Little Goat will truly be a multifunctional space. Construction plans include stripping the 10,000 sq. ft. building down to the bare structure everywhere, the installation of a new custom elevator and adding square footage at the second floor with an addition.
| May 22, 2012
Batson-Cook names Partin VP of Business Development
Partin joins general contractor from Georgia Hospital Association.
| May 22, 2012
Casaccio Architects and GYA Architects join to form Casaccio Yu Architects
Architects Lee A. Casaccio, AIA, LEED AP, and George Yu, AIA, share leadership of the new firm.
| May 22, 2012
O’Connell Robertson acquires Mitchell Design Consultancy
Mary Ann A. Mitchell, AIA, IIDA, MDC principal and founder, joins O’Connell Robertson as part of the acquisition.
| May 21, 2012
$61,000 awarded to students in Cleveland’s ACE Mentor Program
Mayor Frank G. Jackson gives keynote address at scholarship event for 80 Cleveland Metropolitan School District students involved in the ACE Mentor Program, which provides guidance and assistance for students interested in careers in the integrated construction industry.
