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
Sponsored | Architects | Jul 19, 2017
Introducing StrXur by Bluebeam
Our goal is to present unique perspectives you may not be able to find anywhere else.
Sponsored | Accelerate Live! | Jul 13, 2017
Defining the future by mastering the art of change
From my perspective, what separates organizations thriving in the digital revolution from those who are not boils down to one thing: leadership.
Multifamily Housing | Jul 12, 2017
Midyear Rent Report: 26 states saw rental price increases in first half of 2017
The most notable rental increases are in growing markets in the South and Southwest: New Orleans, Glendale, Ariz., Houston, Reno, N.V., and Atlanta.
Giants 400 | Jul 12, 2017
Innovation abounds, but will it lead to growth for AEC Giants?
Engineering firms such as Arup, Glumac, and Thornton Tomasetti are leveraging their in-house expertise to develop products and tools for their design teams, clients, and even the competition.
Multifamily Housing | Jul 12, 2017
7 noteworthy multifamily projects: posh amenities, healthy living, plugged-in lifestyle
Zen meditation gardens, bocce courts, saltwater pools, and free drinks highlight the niceties at these new multifamily developments.
Accelerate Live! | Jul 6, 2017
Watch all 20 Accelerate Live! talks on demand
BD+C’s inaugural AEC innovation conference, Accelerate Live! (May 11, Chicago), featured talks on machine learning, AI, gaming in construction, maker culture, and health-generating buildings.
Healthcare Facilities | Jun 29, 2017
Uniting healthcare and community
Out of the many insights that night, everyone agreed that the healthcare industry is ripe for disruption and that communities contribute immensely to our health and wellness.
Architects | Jun 25, 2017
Stantec adds RNL Design to its stable, fortifying several of its business units
The engineering giant also names successor to CEO who will retire at the end of this year.
Building Team | Jun 22, 2017
Seven lessons learned on commissioning projects
Commissioning is where the rubber meets the road in terms of building design.
Sponsored | Building Team | Jun 20, 2017
Plan ahead when building in the west
Getting a project through plan review can be an unusually long process, anywhere from six months to two years.
