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
| Jul 9, 2012
Integrated Design Group completes UCSB data center
Firm uses European standard of power at USCB North Hall Research Data Center.
| Jul 9, 2012
Oakdale, Calif., Heritage Oaks Senior Apartments opens
New complex highlights senior preferences for amenities.
| Jul 3, 2012
Trimble to acquire WinEstimator
Acquisition adds estimating software solutions to Meridian Systems’ portfolio.
| Jul 3, 2012
Summit Design+Build completes Emmi Solutions HQ
The new headquarters totals 20,455 sq. ft. and features a loft-style space with exposed masonry and mechanical systems, 17-ft clear ceilings, two large rooftop skylights, and private offices with full glass partition walls.
| Jul 3, 2012
TOLK now called Dewberry
The renaming indicates a simplification in Dewberry’s corporate naming conventions.
| Jul 2, 2012
Bernards building mixed-use project in Beverly Hills
The project includes 88 luxury apartment homes atop a 14,000-sf Trader Joe’s market and a new coffee shop.
| Jul 2, 2012
San Francisco lays claim to the greenest building in North America
The 13-floor building can hold around 900 people, but consumes 60% less water and 32% less energy than most buildings of its kind.
| Jul 2, 2012
Plumosa School of the Arts earns LEED Gold
Education project dedicated to teaching sustainability in the classroom.
| Jun 29, 2012
SOM writes a new chapter at Cincinnati’s The Christ Hospital
The 332,000–sf design draws on the predominantly red brick character of The Christ Hospital’s existing buildings, interpreting it in a fresh and contemporary manner that fits well within the historic Mt. Auburn neighborhood while reflecting the institution’s dedication to experience, efficiency, flexibility, innovation and brand.
| Jun 29, 2012
Benjamin Moore Paints announces new CEO
Robert S. Merritt comes to Benjamin Moore with over three decades of management experience in the restaurant and food preparation and distribution industries
