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
Green | Oct 6, 2021
My reaction to the UN IPCC Climate Change 2021 report: Ugh!
The recent report of the UN Intergovernmental Panel on Climate Change is not a happy read.
Sponsored | Glass and Glazing | Oct 1, 2021
Specifying Responsibly to Save Birds’ Lives
Realizing sustainable, bird-friendly glass design
Sponsored | Glass and Glazing | Oct 1, 2021
Seizing the Daylight with BIPV Glass
Glass has always been an idea generator. Now, it’s also a clean energy generator.
Architects | Sep 30, 2021
Riding the great AEC resignation wave
More people than ever are reconsidering what work and career mean. What can AEC firms do to recruit and retain workers in this changing workplace environment? Karl Feldman, Partner with Hinge Marketing, discusses ideas and strategies with BD+C's John Caulfield in this exclusive interview for HorizonTV.
Glass and Glazing | Sep 30, 2021
Plans move forward on Central Place Sydney, duel towers with an AI-driven façade system
SOM and Fender Katsalidis are designing the project.
Architects | Sep 28, 2021
Hoffmann Architects Welcomes Travis Heim as Senior Staff Architect
Hoffmann Architects, an architecture and engineering firm specializing in the rehabilitation of building exteriors, announces that Travis Heim has joined the New York office as Senior Staff Architect.
AEC Business Innovation | Sep 28, 2021
Getting diversity, equity, and inclusion going in AEC firms
As a professional services organization built on attracting the best and brightest talent, VIATechnik relies on finding new ways to do just that. Here are some tips that we’ve learned through our diversity, equity, and inclusion (DE&I) journey.
Multifamily Housing | Sep 22, 2021
Designing for the ‘missing middle’ in multifamily housing
Multifamily housing expert Patrick Winters, AIA, discusses a neglected segment of the market: the "missing middle."
Multifamily Housing | Sep 22, 2021
11 notable multifamily projects to debut in 2021
A residence for older LGBTQ+ persons, a P3 student housing building, and a converted masonic lodge highlight the multifamily developments to debut this year.
Data Centers | Sep 22, 2021
Wasted energy from data centers could power nearby buildings
A Canadian architecture firm comes up with a concept for a community that’s part of a direct-current microgrid.