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
| Aug 11, 2010
Walt Disney Family Museum planned in San Francisco
Construction is under way on a new museum dedicated to the man behind the Disney empire. Set to open this fall in San Francisco, the Walt Disney Family Museum will feature 10 galleries, starting with Disney's beginnings on a Missouri farm.
| Aug 11, 2010
SAFTI FIRST hires Tim Nass as National Sales Manager
SAFTI FIRST, a leading USA manufacturer of fire rated glazing and framing systems, is pleased to announce the addition of Tim Nass as National Sales Manager. In his new role, Tim will be working closely with architects and contract glaziers in selecting the appropriate and most economical fire rated glazing solution for their project. He will also be coordinating SAFTI FIRST’s extensive network of architectural representatives throughout the United States.
| Aug 11, 2010
NCARB welcomes new board of directors
The National Council of Architectural Registration Boards (NCARB) introduces its Board of Directors for FY10, who were installed during the culmination of the Council’s 90th Annual Meeting and Conference in Chicago.
| Aug 11, 2010
Berkebile wins $100K award for commitment to environment
Robert Berkebile, the founding principal of BNIM Architects and a founding member of the U.S. Green Building Council, has been selected to receive a $100,000 Heinz Award. The award honors his role in promoting green building design and for his commitment and action toward restoring social, economic, and environmental vitality to America’s communities through sustainable architecture and planning.
| Aug 11, 2010
Polshek Partnership unveils design for University of North Texas business building
New York-based architect Polshek Partnership today unveiled its design scheme for the $70 million Business Leadership Building at the University of North Texas in Denton. Designed to provide UNT’s 5,400-plus business majors the highest level of academic instruction and professional training, the 180,000-sf facility will include an open atrium, an internet café, and numerous study and tutoring rooms—all designed to help develop a spirit of collaboration and team-oriented focus.
| Aug 11, 2010
University of Florida aiming for nation’s first LEED Platinum parking garage
If all goes as planned, the University of Florida’s new $20 million Southwest Parking Garage Complex in Gainesville will soon become the first parking facility in the country to earn LEED Platinum status. Designed by the Boca Raton office of PGAL to meet criteria for the highest LEED certification category, the garage complex includes a six-level, 313,000-sf parking garage (927 spaces) and an attached, 10,000-sf, two-story transportation and parking services office building.
| Aug 11, 2010
Draft NIST report on Cowboys practice facility collapse released for public comment
A fabric-covered, steel frame practice facility owned by the National Football League’s Dallas Cowboys collapsed under wind loads significantly less than those required under applicable design standards, according to a report released today for public comment by the Commerce Department's National Institute of Standards and Technology (NIST).
