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
| Jul 14, 2014
Toyota selects developer for its new North American headquarters in Plano, Texas
Toyota announced that it has selected Dallas-based KDC Real Estate Development & Investments to develop its new North American headquarters campus in the Legacy West development in Plano, Texas.
| Jul 13, 2014
Punishing deadline can’t derail this prison health facility [2014 Building Team Awards]
A massive scope, tough schedule, and technical complexity fail to daunt the Building Team for a huge California correctional project.
| Jul 11, 2014
First look: Jeanne Gang reinterprets San Francisco Bay windows in new skyscraper scheme
Chicago architect Jeanne Gang has designed a 40-story residential building in San Francisco that is inspired by the city's omnipresent bay windows.
| Jul 11, 2014
$44.5 million Centennial Hall opens at University of Wisconsin-Eau Claire
Centennial Hall houses the College of Education and Human Sciences and consolidates teacher education. It is the first new academic building on the UW-Eau Claire campus in more than 30 years.
| Jul 11, 2014
Are these LEGO-like blocks the future of construction?
Kite Bricks proposes a more efficient way of building with its newly developed Smart Bricks system.
| Jul 10, 2014
BioSkin 'vertical sprinkler' named top technical innovation in high-rise design
BioSkin, a system of water-filled ceramic pipes that cools the exterior surface of buildings and their surrounding micro-climates, has won the 2014 Tall Building Innovation Award from the Council on Tall Buildings and Urban Habitat.
| Jul 10, 2014
Unique design of Toronto's townhome The Tree House
Plans for a new Toronto townhome brings cutting-edge design.
| Jul 10, 2014
Berkeley Lab opens 'world's most comprehensive building efficiency simulator'
DOE’s new FLEXLAB is a first-of-its-kind simulator that lets users test energy-efficient building systems individually or as an integrated system, under real-world conditions.
| Jul 10, 2014
Steinberg SF Studio launches in San Francisco, plans to transform its own office space
Grant and Saheba left their previous architectural firms, AECOM and Handel respectively, because they saw the opportunity to bring their agile, provocative design aesthetic to clients in San Francisco, Silicon Valley, and Oakland.
| Jul 9, 2014
Dragon-inspired hotel conveys Vietnamese hospitality [2014 Building Team Awards]
An international Building Team unites to create Vietnam’s first JW Marriott luxury property.