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
| Aug 5, 2014
Will driverless cars kill the parking structure?
A report from Deloitte highlighted how driverless cars could dramatically alter car ownership in the future, pushing the pendulum from ownership to rentals and ride sharing.
| Aug 5, 2014
K-12 School Sector Giants: Pent-up demand finally produces movement in schools market [2014 Giants 300 Report]
After a long period of anemic performance, with growth mostly driven by renovations and additions, the K-12 sector is showing renewed interest in new construction, according to BD+C's 2014 Giants 300 Report.
| Aug 4, 2014
Jean Nouvel commissioned to design Islam Museum next to WTC
El-Gamal's plans has been dubbed controversial by many industry professionals.
| Aug 4, 2014
Facebook’s prefab data center concept aims to slash construction time in half
Less than a year after opening its ultra-green, hydropowered data center facility in Luleå, Sweden, Facebook is back at it in Mother Svea with yet another novel approach to data center design.
| Aug 4, 2014
Retail Giants: Grocery-anchored centers, trophy malls among hot retail developments [2014 Giants 300 Report]
Despite the rapid growth of online shopping, the 'bricks and mortar' retail sector is faring quite well, headed by power centers, grocery-anchored centers, and trophy malls, according BD+C's 2014 Giants 300 Report.
| Aug 4, 2014
BIM Giants: Firms enhance BIM/VDC with advanced collaboration tools [2014 Giants 300 Report]
Cloud-based data sharing, rapid iterative design, and cross-discipline collaboration are among the emerging trends in the BIM/VDC field, according to BD+C's 2014 Giants 300 Report.
| Aug 4, 2014
7 habits of highly effective digital enterprises
Transforming your firm into a “digital business” is particularly challenging because digital touches every function while also demanding the rapid development of new skills and investments. SPONSORED CONTENT
| Aug 4, 2014
What AEC executives can do to position their firms for success
Most AEC leadership teams are fastidious about tracking their hit rate–the number of proposals submitted minus the number of proposals won. Here are three alternatives for increasing that percentage. SPONSORED CONTENT
| Aug 1, 2014
Best in healthcare design: AIA selects eight projects for National Healthcare Design Awards
Projects showcase the best of healthcare building design and health design-oriented research.
| Aug 1, 2014
Recession recovery spotty among American cities: WalletHub report
Texas metros show great momentum, but a number of Arizona and California cities are still struggling to recover.
