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
Multifamily Housing | Apr 7, 2022
Ken Soble Tower becomes world’s largest residential Passive House retrofit
The project team for the 18-story high-rise for seniors slashed the building’s greenhouse gas emissions by 94 percent and its heating energy demand by 91 percent.
Architects | Apr 7, 2022
Perkins Eastman, Kliment Halsband Architects to merge
Perkins Eastman and Kliment Halsband Architects have announced their merger, which will combine the formidable talents, experience, and skills of both legacy firms. With Perkins Eastman celebrating its 40th anniversary and Kliment Halsband celebrating its 50th, this merger promises to create powerful synergies.
Urban Planning | Apr 5, 2022
The art of master planning, with Mike Aziz of Cooper Robertson
Mike Aziz, AIA, LEED AP, Partner and Director of Urban Design with Cooper Robertson, discusses his firm's design for the redevelopment of a Connecticut town's riverfront.
Multifamily Housing | Apr 5, 2022
New Covenant House New York contains multiple services for youth in crisis
The new Covenant House New York, a crisis shelter for homeless youth in the Hell’s Kitchen neighborhood, provides a temporary home and multiple services for young people.
Sponsored | BD+C University Course | Apr 1, 2022
Video surveillance systems for multifamily housing projects
This introductory course provides detailed technical information and advice from security expert Michael Silva, CPP, on designing a video surveillance system for multifamily housing communities – apartments, condominiums, townhouses, or senior living communities. Technical advice on choosing the right type of cameras and optimizing the exterior lighting for their use is offered.
K-12 Schools | Apr 1, 2022
Charleston County’s award-winning career and technical education high school
BD+C Executive Editor Rob Cassidy talks with the team behind the award-winning Cooper River Center for Advanced Studies, a Career|Technical Education high school in Charleston County, S.C.
Modular Building | Mar 31, 2022
Rick Murdock’s dream multifamily housing factory
Modular housing leader Rick Murdock had a vision: Why not use robotic systems to automate the production of affordable modular housing? Now that vision is a reality.
Multifamily Housing | Mar 29, 2022
Here’s why the U.S. needs more ‘TOD’ housing
Transit-oriented developments help address the housing affordability issue that many cities and suburbs are facing.
Contractors | Mar 28, 2022
Amid supply chain woes, building teams employ extreme procurement measures
Project teams are looking to eliminate much of the guesswork around product availability and price inflation by employing early bulk-purchasing measures for entire building projects.
Reconstruction & Renovation | Mar 28, 2022
Is your firm a reconstruction sector giant?
Is your firm active in the U.S. building reconstruction, renovation, historic preservation, and adaptive reuse markets? We invite you to participate in BD+C's inaugural Reconstruction Market Research Report.