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
| Mar 20, 2014
13 dazzling wood building designs [slideshow]
From bold structural glulam designs to striking textured wall and ceiling schemes, these award-winning building projects showcase the design possibilities using wood.
| Mar 20, 2014
Fluor defines the future 7D deliverable without losing sight of real results today
A fascinating client story by Fluor SVP Robert Prieto reminds us that sometimes it’s the simplest details that can bring about real results today—and we shouldn’t overlook them, even as we push to change the future state of project facilitation.
| Mar 19, 2014
Architecture Billings Index shows slight improvement
The American Institute of Architects (AIA) reported that the February ABI score was 50.7, up slightly from a mark of 50.4 in January.
| Mar 19, 2014
Gehry, Zaha, Foster, Meier: Vote for your top 'starchitect' in this March Madness design legends tourney
Fast Company's Bracket Madness tournament pits 32 designers against each other to see who truly is the world's greatest living designer.
| Mar 19, 2014
Is it time to start selecting your own clients?
Will 2014 be the year that design firms start selecting the clients they want rather than getting in line with competitors to respond to RFPs? That’s the question posed by a recent thought-provoking article.
| Mar 19, 2014
How to develop a healthcare capital project using a 'true north charter'
Because healthcare projects take years to implement, developing a true north charter is essential for keeping the entire team on track and moving in the right direction.
| Mar 18, 2014
6 keys to better healthcare design
Healthcare facility planning and design experts cite six factors that Building Teams need to keep in mind on their next healthcare project.
| Mar 18, 2014
How your AEC firm can win more healthcare projects
Cutthroat competition and the vagaries of the Affordable Healthcare Act are making capital planning a more daunting task than ever. Our experts provide inside advice on how AEC firms can secure more work from hospital systems.
| Mar 18, 2014
Charles Dalluge joins DLR Group as president, COO
CEO Griff Davenport announces addition of Dalluge to executive leadership team
| Mar 17, 2014
Rem Koolhaas explains China's plans for its 'ghost cities'
China's goal, according to Koolhaas, is to de-incentivize migration into already overcrowded cities.