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
| Apr 15, 2014
Chipperfield's sparkling brass-clad scheme selected to be new home of Nobel Prize
The distinctive building, with its shimmering vertical brass elements and glass façade design, beat out two other finalists in the Nobel Center architectural competition.
Sponsored | | Apr 15, 2014
Value billing and differentiation
Regardless of the fee you charge, clients and prospects decide the value of your professional services based on their experience with your firm.
| Apr 11, 2014
ULI report documents business case for building healthy projects
Sustainable and wellness-related design strategies embody a strong return on investment, according to a report by the Urban Land Institute.
| Apr 11, 2014
First look: KPF's designs for DreamWorks in the massive Shanghai DreamCenter
Two blocks of offices will be centerpiece of new cultural and lifestyle district in the West Bund Media Port.
| Apr 11, 2014
Start your engines: Ferrari plans to build first ever hotel
Clad in the carmaker's signature "Ferrari red," the hotel will resemble the grill and hood of one of its iconic cars.
| Apr 10, 2014
Collegiate sports becoming greener: Survey
A survey conducted from May through June 2013 by the University of Arizona Office of Sustainability and published by the Natural Resources Defense Council (NRDC)* finds that more collegiate athletic teams are adopting green and sustainable practices in operation of their sports facilities.
| Apr 10, 2014
Submit Your Project for a Bluebeam eXtreme Award!
Bluebeam is holding the second annual Bluebeam eXtreme Awards at the 2014 Bluebeam eXtreme Conference in Hollywood, Calf.
| Apr 9, 2014
How patient-centered medical homes can help healthcare providers and patients
Beyond reducing the number of uninsured Americans, the Affordable Care Act is driving new types of healthcare facilities, especially patient-centered medical homes.
| Apr 9, 2014
Colossal aquarium in China sets five Guinness World Records
With its seven salt and fresh water aquariums, totaling 12.87 million gallons, the Chimelong Ocean Kingdom theme park is considered the world’s largest aquarium.
| Apr 9, 2014
Gregory Hodkinson appointed head of Arup Group
Hodkinson has spent his professional career at Arup and brings more than 40 years' experience in large-scale projects to the new role, including several in the US and Canada.