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
| Feb 14, 2013
5 radical trends in outpatient facility design
Building Design+Construction combed the healthcare design and construction sector to evaluate the latest developments in outpatient facility designs. Here are five trends to watch.
| Feb 14, 2013
Boxman Studios launches shipping container buildings division
Boxman Studios has launched a new division aimed at sustainable solutions for the Built Environment. The Boxman Studios Buildings Division will focus on the adaptive use of decommissioned shipping containers as architectural elements and even complete buildings.
Smart Buildings | Feb 14, 2013
Minneapolis joins energy benchmarking trend for commercial buildings
Minneapolis is the latest major metro to require large commercial buildings to benchmark and disclose their energy and water use.
| Feb 14, 2013
Peter Rutti named Director of Design of Westlake Reed Leskosky’s Phoenix studio
Peter W. Rutti, AIA, Associate Principal and Project Director of Westlake Reed Leskosky, has been appointed Director of Design of the Phoenix, Arizona studio of the nationally recognized architects, engineers, and technology designers. The announcement recognizes the design excellence, leadership, and continued growth of the national and international practice of the integrated design firm in the western region.
| Feb 14, 2013
Peter Bardwell named 2013 president of the American College of Healthcare Architects
The Board of Regents of the American College of Healthcare Architects (ACHA) has named Peter L. Bardwell, FAIA, FACHA of Columbus, Ohio as 2013 national President.
| Feb 13, 2013
Department store concept by OMA's Koolhaas, Alsaka draws inspiration from open-air Arab marketplaces
The Exhibition Hall, a retail concept planned in Kuwait City's 360° Mall, will meld cultural and commerce spaces in a series of galleries reminiscent of the long passages of the souq—traditional, open-air marketplaces found in Arab cities.
| Feb 13, 2013
China plans new car-free city
A new urban development near Chengdu, China, will provide new housing for ~80,000 people, surrounded by green space.
| Feb 13, 2013
Advanced urbanism is focus of new MIT research center
MIT Center for Advanced Urbanism will seek 21st Century planning solutions, starting with infrastructure design issues.
| Feb 13, 2013
'Vegetative tower' apartments to revive NYC site
A Manhattan site formerly slated for development with a "tower of cubes"—a now-defunct project by Santiago Calatrava—will be revived with a 998-foot, 300,000-sf apartment building by Morali Architects.
