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
| Dec 2, 2011
Goody Clancy awarded Ohio State residential project
The project, which is focused on developing a vibrant on-campus community of learning for OSU undergraduates.
| Dec 1, 2011
Nauset Construction breaks ground on Massachusetts health care center
The $20 million project is scheduled to be completed by December 2012.
| Dec 1, 2011
Ground broken on first LEED Platinum designed school house built by volunteers
Phoenix public school receives the generous gift of a state-of-the-art building for student and community use.
| Dec 1, 2011
VLK Architects’ office receives LEED certification
The West 7th development, which houses the firm’s office, was designed to be LEED for Core & Shell, which gave VLK the head start on finishing out the area for LEED Silver Certification CI.
| Nov 29, 2011
First EPD awarded to exterior roof and wall products manufacturer
EPD is a standardized, internationally recognized tool for providing information on a product’s environmental impact.
| Nov 29, 2011
Suffolk Construction breaks ground on Boston residential tower
Millennium Place III is a $220 million, 256-unit development that will occupy a full city block in Boston’s Downtown Crossing.
| Nov 29, 2011
Report finds credit crunch accounts for 20% of nation’s stalled projects
Persistent financing crunch continues to plague design and construction sector.
| Nov 29, 2011
SB Architects completes Mission Hills Volcanic Mineral Springs and Spa in China
Mission Hills Volcanic Mineral Springs and Spa is home to the largest natural springs reserve in the region, and measures 950,000 sf.
| Nov 29, 2011
Turner Construction establishes partnership with Clark Builders
Partnership advances growth in the Canadian marketplace.
| Nov 29, 2011
AIA launches stalled projects database
To populate this database with both stalled projects and investors interested in financing them, the AIA in the last week initiated a communications campaign to solicit information about stalled projects around the country from its members and allied professionals.
