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 9, 2012
DSGW Architects welcomes new employees
Three new employees located in DSGW's Duluth office.
| Aug 9, 2012
DMR Architects converts bank building to municipal court
The project consisted of a $4 million renovation to a 2-story building totaling 13,000-sf.
| Aug 8, 2012
BD+C wins six B2B journalism awards
BD+C wins two national awards, three regional awards, and a regional Graphical Excellence award.
| Aug 8, 2012
BIM’s future up in the cloud
The AEC industry is on the cusp of a still more significant evolution with cloud computing.
| Aug 8, 2012
Giants 300 Sports Facilities Report
BD+C's Giants 300 Top 25 AEC Firms in the Sports Facilities sector.
| Aug 8, 2012
Giants 300 Science & Technology Report
BD+C's Giants 300 Top 25 AEC Firms in the Science & Technology sector.
| Aug 7, 2012
Pioneering revival
Financial setbacks didn’t stop this Building Team from transforming the country’s first women’s medical school into a new home for college students.
| Aug 7, 2012
Shedding light on the arts
Renovating Pietro Belluschi’s Juilliard School opens the once-cloistered institution to its Upper West Side community.
| Aug 7, 2012
How to win more state and local government projects
With a huge building stock at their disposal, state and local governments can be attractive clients, especially in these difficult economic times.
| Aug 7, 2012
McCarthy tops out LEED Platinum-designed UCSD Health Sciences Biomedical Research Facility
New laboratory will enable UCSD to recruit and accommodate preeminent faculty.