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
Sports and Recreational Facilities | Aug 18, 2017
Video: Designing the ideal rugby stadium
HOK invited four world-class rugby players into its London studio to discuss what they would like to see in the rugby stadiums of the future.
Architects | Aug 16, 2017
Staffelbach joins DLR Group
The firm will be merging operations immediately with full integration and the name change to DLR Group| Staffelbach effective October 2.
Multifamily Housing | Aug 9, 2017
Related Companies unveils plans for One Hudson Yards luxury rental residences
The 33-story tower will be positioned on the High Line with views of the Hudson River and downtown Manhattan.
Multifamily Housing | Aug 9, 2017
Multifamily developers, designers cater to occupants’ need for mobility
Bike storage facilities and “bicycle kitchens” are among the most popular mobility amenities in multifamily developments, according to a new survey by Multifamily Design + Construction magazine.
Giants 400 | Aug 9, 2017
Innovation at 72 design firms
The following is a list of advancements architecture and A/E firms underwent in 2016, as reported in Building Design+Construction's 2017 Giants 300 Report.
Giants 400 | Aug 9, 2017
Top 115 Architecture Firms
Gensler, Perkins+Will, and HKS top Building Design+Construction’s ranking of the nation’s largest architecture firms, as reported in the 2017 Giants 300 Report.
Giants 400 | Aug 9, 2017
Top 100 Architecture/Engineering Firms
Stantec, HOK, and CallisonRTKL are among the nation’s largest architecture/engineering firms, according to Building Design+Construction’s 2017 Giants 300 Report.
Contractors | Aug 4, 2017
4 ways to prepare for a negotiation
Practice, practice, practice, and understanding both sides of the deliberation are critical to success in any negotiation.
Laboratories | Aug 3, 2017
Today’s university lab building by the numbers
A three-month study of science facilities conducted by Shepley Bulfinch reveals key findings related to space allocation, size, and cost.