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
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).
| Aug 11, 2010
Callison, MulvannyG2 among nation's largest retail design firms, according to BD+C's Giants 300 report
A ranking of the Top 75 Retail Design Firms based on Building Design+Construction's 2009 Giants 300 survey. For more Giants 300 rankings, visit http://www.BDCnetwork.com/Giants
| Aug 11, 2010
USGBC honors Brad Pitt's Make It Right New Orleans as the ‘largest and greenest single-family community in the world’
U.S. Green Building Council President, CEO and Founding Chair Rick Fedrizzi today declared that the neighborhood being built by Make It Right New Orleans, the post-Katrina housing initiative launched by actor Brad Pitt, is the “largest and greenest community of single-family homes in the world” at the annual Clinton Global Initiative meeting in New York.
| Aug 11, 2010
AIA report estimates up to 270,000 construction industry jobs could be created if the American Clean Energy Security Act is passed
With the encouragement of Senate majority leader Harry Reid (D-NV), the American Institute of Architects (AIA) conducted a study to determine how many jobs in the design and construction industry could be created if the American Clean Energy Security Act (H.R. 2454; also known as the Waxman-Markey Bill) is enacted.
| Aug 11, 2010
Architect Michael Graves to be inducted into the N.J. Hall of Fame
Architect Michael Graves of Princeton, N.J., being inducted into the N.J. Hall of Fame.
| Aug 11, 2010
Modest rebound in Architecture Billings Index
Following a drop of nearly three points, the Architecture Billings Index (ABI) nudged up almost two points in February. As a leading economic indicator of construction activity, the ABI reflects the approximate nine to twelve month lag time between architecture billings and construction spending.
