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
| Feb 7, 2014
Zaha Hadid's 'white crystal' petroleum research center taking shape in the desert [slideshow]
Like a crystalline form still in the state of expansion, the King Abdullah Petroleum Studies and Research Center will rise from the desert in dramatic fashion, with a network of bright-white, six-sided cells combining to form an angular, shell-like façade.
| Feb 6, 2014
First look: Gensler ups the ante on airport design with new SFO boarding area
The new terminal features a yoga room, award-winning arts program, and an interactive play area for kids.
| Feb 6, 2014
End of the open workplace?
If you’ve been following news about workplace design in the popular media, you might believe that the open workplace has run its course. While there’s no shortage of bad open-plan workplaces, there are two big flaws with the now common claim that openness is bad.
| Feb 6, 2014
New Hampshire metal building awes visitors
Visitors to the Keene Family YMCA in New Hampshire are often surprised by what they encounter. Liz Coppola calls it the “wow factor.” “Literally, there’s jaw dropping,” says Coppola, director of financial and program development for the Keene Family YMCA.
| Feb 5, 2014
M&A activity down in 2013 among architecture, engineering firms: Report
In 2013, consultant Morrissey Goodale observed 168 sales of U.S.-based architecture and engineering (“A/E”) firms – down nearly 7% from the record 180 sales of U.S.-based A/E firms in 2012.
| Feb 5, 2014
BIA Opens Entries for 25th Annual Brick in Architecture Awards
Entries open on February 10 for the Brick Industry Association's (BIA)Â Brick in Architecture Awards. Celebrating its silver anniversary, BIA's annual honors spotlight outstanding, innovative and sustainable architecture that incorporates clay brick products as the predominant exterior building or paving material.Â
| Feb 5, 2014
Multifamily Housing, Green Building, Market Trends, Innovation to be Prime Topics at MBI’s World of Modular
More than 600 developers, contractors, architects, builders, dealers and equipment/service suppliers are expected at the event, slated for March 21-24 in San Antonio, Texas, and hosted by the Modular Building Institute.
| Feb 5, 2014
7 towers that define the 'skinny skyscraper' boom [slideshow]
Recent advancements in structural design, combined with the loosening of density and zoning requirements, has opened the door for the so-called "superslim skyscraper." Â
| Feb 4, 2014
World's fifth 'living building' certified at Smith College [slideshow]
The Bechtel Environmental Classroom utilizes solar power, composting toilets, and an energy recovery system, among other sustainable strategies, to meet the rigorous performance requirements of the Living Building Challenge.
| Feb 4, 2014
Must see: Student housing complex made with recycled shipping containers
Architect Christian Salvati's new structure is just the first step in bringing shipping container construction to New Haven, Conn.