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
| Sep 13, 2014
Why CEOs shouldn’t be afraid to ask for outside help
An oven-overlooked factor in assessing the success of a leader, according to organizational development consultant Brook Manville, is his or her ability to go far outside the organization to get help in solving problems. SPONSORED CONTENT
Sponsored | | Sep 13, 2014
Right Way Plumbing finishes first at Max Planck Florida Institute
The Max Planck Florida Institute consists of a three-story, 100,000-sf scientific research facility with 30,000 feet of copper joined with Viega ProPress fittings.
| Sep 12, 2014
Total immersion: Has virtual reality's time finally come?
The emergence of low-cost VR technology means that anyone with a few hundred bucks and a decent workstation can get in the game. But, as our experts reveal, pulling off VR is not so simple.
| Sep 12, 2014
Will on-site parking remain king in the development world?
In spite of the trend away from multi-car residences, not much has changed with regard to parking spot allocations within apartment buildings and other multi-unit residential developments, writes GS&P's Doug Sharp.
| Sep 11, 2014
5 competing designs unveiled for Presidio Parklands in San Francisco
To turn the underdeveloped area by Chrissy Field into new public space, San Francisco's Presidio Trust unveiled the five designs by five teams they invited earlier this year.
| Sep 11, 2014
Cintas invites public to vote for 'America's best restroom'
For the 13th consecutive year, Cintas Corporation is back with its popular America’s Best Restroom Contest. A team of survey editors once again scanned the country for the most creative and clean public restrooms and produced a crop of nominees sure to please.
| Sep 10, 2014
Ranked: Top transit facility sector AEC firms [2014 Giants 300 Report]
Leo A Daly, URS, and Skanska head BD+C's rankings of the largest transit facility sector design and construction firms, based on the 2014 Giants 300 Report.
| Sep 10, 2014
Must See: Shape-shifting architecture that responds to heat
Students in Barcelona have created a composite material using shape memory polymers that can deform and return to their original state when activated by cues like heat, humidity, and light.
| Sep 10, 2014
Lessons for the shore: Bolstering resilience of the built environment
Nearly 32 million people, or 28% of the East Coast's population, live in areas lying within a mile of a shore line. The good news is that municipalities are starting to take action, writes Sasaki Associates.
| Sep 9, 2014
Using Facebook to transform workplace design
As part of our ongoing studies of how building design influences human behavior in today’s social media-driven world, HOK’s workplace strategists had an idea: Leverage the power of social media to collect data about how people feel about their workplaces and the type of spaces they need to succeed.
