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
Architects | Sep 11, 2019
Buoyed by construction activity, architect compensation continues to see healthy gains
The latest AIA report breaks down its survey data by 44 positions and 28 metros.
Multifamily Housing | Sep 10, 2019
Carbon-neutral apartment building sets the pace for scalable affordable housing
Project Open has no carbon footprint, but the six-story, solar-powered building is already leaving its imprint on Salt Lake City’s multifamily landscape.
Giants 400 | Sep 9, 2019
Top 70 Industrial Sector Architecture Firms for 2019
AECOM, Stantec, Ware Malcomb, FSB, and Macgregor Associates top the rankings of the nation's largest industrial sector architecture and architecture engineering (AE) firms, as reported in Building Design+Construction's 2019 Giants 300 Report.
Giants 400 | Sep 9, 2019
2019 Industrial Sector Giants Report: Managing last mile delivery
This and more industrial building sector trends from Building Design+Construction's 2019 Giants 300 Report.
Codes and Standards | Sep 9, 2019
Free app calculates maximum allowable heights and areas for buildings
A free app that calculates the maximum allowable heights and areas for buildings of various occupancy classifications and types of construction has been released.
Retail Centers | Sep 6, 2019
Another well-known retailer files for bankruptcy: Here's the solution to more empty anchor stores
Where can you find the future of retail? At the intersection of experience and instant gratification.
Giants 400 | Sep 5, 2019
Top 110 Hotel Sector Architecture Firms for 2019
Gensler, WATG, HKS, HBG Design, and Steelman Partners top the rankings of the nation's largest hotel sector architecture and architecture engineering (AE) firms, as reported in Building Design+Construction's 2019 Giants 300 Report.
Architects | Sep 5, 2019
AIA launches landmark initiative to drive climate action
AIA Board of Directors approves member-led resolution to rally architects in mitigating and adapting the built environment.
Giants 400 | Sep 3, 2019
Top 140 K-12 School Sector Architecture Firms for 2019
DLR Group, PBK, Huckabee, Stantec, and VLK Architects top the rankings of the nation's largest K-12 school sector architecture and architecture engineering (AE) firms, as reported in Building Design+Construction's 2019 Giants 300 Report.
Market Data | Sep 3, 2019
Nonresidential construction spending slips in July 2019, but still surpasses $776 billion
Construction spending declined 0.3% in July, totaling $776 billion on a seasonally adjusted annualized basis.
