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
Healthcare Facilities | Aug 28, 2015
Hospital construction/renovation guidelines promote sound control
The newly revised guidelines from the Facilities Guidelines Institute touch on six factors that affect a hospital’s soundscape.
Healthcare Facilities | Aug 28, 2015
7 (more) steps toward a quieter hospital
Every hospital has its own “culture” of loudness and quiet. Jacobs’ Chris Kay offers steps to a therapeutic auditory environment.
Healthcare Facilities | Aug 28, 2015
Shhh!!! 6 ways to keep the noise down in new and existing hospitals
There’s a ‘decibel war’ going on in the nation’s hospitals. Progressive Building Teams are leading the charge to give patients quieter healing environments.
Architects | Aug 28, 2015
How to transition leadership within your architecture firm, Part 2
Close to retiring? Without a plan for leadership transition, you might not foster candidates who will be capable of taking over the reins, says Whitehorn Financial's Steve Whitehorn.
Retail Centers | Aug 27, 2015
Vallco Shopping Mall renovation plans include 'largest green roof in the world'
The new owners of the mall in Cupertino, Calif., intend to transform the outdated shopping mall into a multi-purpose complex, topped by a 30-acre park.
Libraries | Aug 27, 2015
Barack Obama Foundation begins search for presidential library architect
Both national and foreign firms will compete for chance to design the Chicago-based Presidential Center.
Architects | Aug 27, 2015
How to transition leadership within your architecture firm, Part 1
In order for your firm to thrive and preserve your legacy after retirement, it is essential that you create a strategic plan to not only transition ownership of your firm but its leadership as well.
Mixed-Use | Aug 26, 2015
Innovation districts + tech clusters: How the ‘open innovation’ era is revitalizing urban cores
In the race for highly coveted tech companies and startups, cities, institutions, and developers are teaming to form innovation hot pockets.
Office Buildings | Aug 19, 2015
Good design can combat open-office issues
Three tricks to maintain privacy and worker production in a cube-less world, according to GS&P's Jack E. Weber
Architects | Aug 19, 2015
Despite dip, architecture billings remain strong
The American Institute of Architects (AIA) reported the July ABI score was 54.7, down a point from a mark of 55.7 in June.