Most daylight harvesting schemes fall short of performance goals, says study

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)

Across the country, multifamily rents have skyrocketed. Year-over-year rents are up by double digits in nine of the top 30 markets, while national YoY rent growth is up 6.3%. Emerging from the pandemic, a perfect storm of migration, enhanced government stimulus and a hot housing market, among other factors, has enabled this extremely strong growth.

AEC firm actions in light of Covid opening

AEC Business Innovation | Jul 11, 2021

Staffing, office changes at SCB, SmithGroup, RKTB, Ryan Cos., Jacobsen, Boldt, and Adolfson & Peterson

AEC firms take strategic action as construction picks up steam with Covid openings.

STEM High School Post-Occupancy Evaluation (POE) HorizonTV, LPA Architects

K-12 Schools | Jul 9, 2021

LPA Architects' STEM high school post-occupancy evaluation

LPA Architects conducted a post-occupancy evaluation, or POE, of the eSTEM Academy, a new high school specializing in health/medical and design/engineering Career Technical Education, in Eastvale, Calif. The POE helped LPA, the Riverside County Office of Education, and the Corona-Norco Unified School District gain a better understanding of which design innovations—such as movable walls, flex furniture, collaborative spaces, indoor-outdoor activity areas, and a student union—enhanced the education program, and how well students and teachers used these innovations.

Interior designer Creative License International fashioned this community room for P83, a 250-unit rental community in Peoria, Ariz. 2021 Multifamily Amenities study

Multifamily Housing | Jul 7, 2021

Make sure to get your multifamily amenities mix right

One of the hardest decisions multifamily developers and their design teams have to make is what mix of amenities they’re going to put into each project. A lot of squiggly factors go into that decision: the type of community, the geographic market, local recreation preferences, climate/weather conditions, physical parameters, and of course the budget. The permutations are mind-boggling.

Industrial Facilities | Jul 2, 2021

A new approach to cold storage buildings

Cameron Trefry and Kate Lyle of Ware Malcomb talk about their firm's cold storage building prototype that is serving a market that is rapidly expanding across the supply chain.