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
Architects | Apr 4, 2017
Architect Howard Elkus dies at 78
Cofounder of Elkus Manfredi Architects, his career spanned five decades, and included a spectrum of major design projects.
Building Team | Apr 4, 2017
Dispelling five myths about post-occupancy evaluations
Many assume that post-occupancy (POE) is a clearly-defined term and concept, but the meaning of POE in practice remains wildly inconsistent.
Structural Materials | Apr 3, 2017
Best of structural steel construction: 4WTC, Fulton Center, Pterodactyl win AISC IDEAS2 Awards
The annual awards program, sponsored by the American Institute of Steel Construction, honors the best in structural steel design and construction.
Green | Mar 29, 2017
Copenhagen Zoo and BIG unveil yin yang-shaped panda habitat
The new habitat will sit between two existing buildings, including the Elephant House designed by Norman Foster.
Architects | Mar 28, 2017
A restroom for everyone
Restroom access affects everyone: people with medical needs or disabilities, caretakers, transgender people, parents with children of the opposite gender, and really anyone with issues or needs around privacy.
High-rise Construction | Mar 27, 2017
Density and tall buildings
CRTKL’s Maren Striker examines Europe’s desire to build upward.
Architects | Mar 9, 2017
Watch Frank Lloyd Wright and Buckminster Fuller discuss architecture in animated video shorts
Given more time, Wright wanted to rebuild the country and change the nation.
Architects | Mar 6, 2017
Demolished Frank Lloyd Wright buildings get new life with photorealistic renderings
Architect David Romero recreated the Larkin Administration Building and the Rose Pauson House with detailed, fully colored renderings.
Building Team | Mar 6, 2017
AEC firms: Your website is one of the most important things you'll build
Don’t believe it? You’d better take a look at the research.
