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 26, 2022
Better design with a “brain break”
During the design process, there aren’t necessarily opportunities to implement “brain breaks,” brief moments to take a purposeful pause from the task at hand and refocus before returning to work.
Building Team | Jul 25, 2022
First Ismaili Center in the U.S. combines Islamic design with Texas influences
Construction has begun on the first Ismaili Center in the U.S. in Houston.
Codes and Standards | Jul 22, 2022
Office developers aim for zero carbon without offsets
As companies reassess their office needs in the wake of the pandemic, a new arms race to deliver net zero carbon space without the need for offsets is taking place in London, according to a recent Bloomberg report.
Codes and Standards | Jul 22, 2022
Hurricane-resistant construction may be greatly undervalued
New research led by an MIT graduate student at the school’s Concrete Sustainability Hub suggests that the value of buildings constructed to resist wind damage in hurricanes may be significantly underestimated.
School Construction | Jul 22, 2022
School integrating conventional medicine with holistic principles blends building and landscape
Design of the new Alice L. Walton School of Medicine in Bentonville, Ark., aims to blend the building and landscape, creating connections with the surrounding woodlands and the Ozark Mountains.
Market Data | Jul 21, 2022
Architecture Billings Index continues to stabilize but remains healthy
Architecture firms reported increasing demand for design services in June, according to a new report today from The American Institute of Architects (AIA).
Market Data | Jul 21, 2022
Despite deteriorating economic conditions, nonresidential construction spending projected to increase through 2023
Construction spending on buildings is projected to increase just over nine percent this year and another six percent in 2023, according to a new report from the American Institute of Architects (AIA).
Mixed-Use | Jul 21, 2022
Former Los Angeles Macy’s store converted to mixed-use commercial space
Work to convert the former Westside Pavilion Macy's department store in West Los Angeles to a mixed-use commercial campus recently completed.
Building Team | Jul 20, 2022
San Francisco overtakes Tokyo as the world’s most expensive city for construction
San Francisco has overtaken Tokyo as the world’s most expensive city for construction, according to a new report from Turner & Townsend.
Libraries | Jul 20, 2022
Canada to open one of the world’s largest library and archive facilities
When it opens in 2026, Ādisōke is expected to be one of the largest library and archive facilities in the world.
