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
Giants 400 | Oct 24, 2019
Top 125 Retail Architecture Firms for 2019
CallisonRTKL, Gensler, MG2, NELSON, and Stantec top the rankings of the nation's largest retail sector architecture and architecture engineering (AE) firms, as reported in Building Design+Construction's 2019 Giants 300 Report.
Architects | Oct 11, 2019
SMPS report tracks how AEC firms are utilizing marketing technology tools
With thousands of MarTech tools and apps on the market, design and construction firms are struggling to keep up.
Healthcare Facilities | Oct 4, 2019
Heart failure clinics are keeping more patients out of emergency rooms
An example of this building trend recently opened at Beaumont Hospital near Ann Arbor, Mich.
Giants 400 | Oct 3, 2019
Top 30 Convention Center Sector Architecture Firms for 2019
LMN Architects, Gensler, Populous, Fentress Architects, and Moody Nolan top the rankings of the nation's largest convention center sector architecture and architecture engineering (AE) firms, as reported in Building Design+Construction's 2019 Giants 300 Report.
Giants 400 | Oct 3, 2019
Top 110 Cultural Sector Architecture Firms for 2019
Gensler, Populous, DLR Group, Stantec, and Perkins and Will top the rankings of the nation's largest cultural facility sector architecture and architecture engineering (AE) firms, as reported in Building Design+Construction's 2019 Giants 300 Report.
Giants 400 | Oct 3, 2019
2019 Cultural Facility Giants Report: New libraries are all about community
The future of libraries is less about being quiet and more about hands-on learning and face-to-face interactions. This and more cultural sector trends from BD+C's 2019 Giants 300 Report.
Architects | Oct 3, 2019
LEO A DALY wins Architect of the Capitol contract
The firm will help modernize some of the country’s most significant public buildings.
3D Printing | Sep 17, 2019
Additive manufacturing goes mainstream in the industrial sector
More manufacturers now include this production process in their factories.
Multifamily Housing | Sep 12, 2019
Meet the masters of offsite construction
Prescient combines 5D software, clever engineering, and advanced robotics to create prefabricated assemblies for apartment buildings and student housing.
Cultural Facilities | Sep 11, 2019
The Kennedy Center expands for the first time since its 1971 debut
The REACH, with three pavilions on a generous lawn, adds openness and light to this performance space.
