Note: This article originally appeared in BD+C's April 2013 AIA/CES course, "Advanced Controls and Exterior Tactics for Better Illumination." This free class is available on BD+C University.
“We don’t specify LEDs,” says Avraham Mor of Lightswitch Architectural. “We specify solid-state luminaires and lamps (SSL) that use LEDs.”
Mor’s correction of this common misuse of the term “LED” is significant, because a problem associated with SSL is often just a problem with a specific LED product. “SSL is the only source to use when trying to meet energy reduction goals while maintaining the look and feel we typically work toward,” he says. “We have had great success, but it takes a great designer and client to manage the entire process.”
In fact, many complaints about LEDs are often attributable to the SSL, and vice versa, leading to complaints about a technology that sometimes fails to meet expectations. But SSL, as Mor says, is really the future of energy reduction; with careful design and specification, it is also the present.
PNNL’s Naomi Miller points to the myriad benefits of LED technology: “Higher lumens-per-watt than fluorescent, good lumen maintenance over time (in some cases better than fluorescent), long life compared to CFL or metal halide, and excellent color compared to almost any conventional light source.” She adds that the small form factors mean LEDs are richly accommodating, allowing designers enormous creative flexibility with space, configuration, and color.
Lumen Architecture’s Nelson Jenkins says blanket substitutions aren’t necessarily a good strategy, however: “Not all LED products match the quality of the other sources we specify.” In addition, price is still an issue. “We find that while the cost of LEDs has come down, they tend to be more expensive than, for instance, a halogen version. But the up-front cost for LEDs can often be offset by the energy savings and reduced maintenance.” Jenkins suggests explaining to clients that SSL will require re-lamping less often—an especially strong selling point in vaulted spaces or exterior applications.
Ultimately, the SSL category is a work-in-progress, not a panacea. “LED is certainly very popular, and many designs would not be possible without it,” The Lighting Practice’s Stephen Hoppe says, referring to exterior applications. “But ceramic metal halide also provides great color rendition and warmth and can often be as efficient as LED.”
James Benya of the California Lighting Technology Center, UC-Davis, has concerns about how codes and standards may be affecting the market for products and systems, particularly LEDs. He hopes to see energy codes and sustainable building standards that do not promote particular technologies.
“The current trend shows a rush to use LEDs,” warns Howard Brandston, founder of Brandston Partnership. “One must determine if LED is the right choice after sifting through the qualities of all the alternate products. There is no change in the design process,” he concludes, “just an additional product to select from.”
Related Stories
Architects | Nov 10, 2022
What’s new at 173 architecture firms for 2022
More than 295 U.S. architecture and architecture-engineering (AE) firms participated in BD+C's 2022 Giants 400 survey. As part of the Giants survey process, participating firms are asked to describe their most impactful firm innovations and noteworthy company moves in the past 12 months. Here is a collection of the most compelling business and project innovations and business moves from the 2022 Architecture Giants.
Giants 400 | Nov 9, 2022
Top 30 Data Center Architecture + AE Firms for 2022
HDR, Corgan, Sheehan Nagle Hartray Architects, and Gensler top the ranking of the nation's largest data center architecture and architecture/engineering (AE) firms for 2022, as reported in Building Design+Construction's 2022 Giants 400 Report.
Giants 400 | Nov 8, 2022
Top 110 Sports Facility Architecture and AE Firms for 2022
Populous, HOK, Gensler, and Perkins and Will top the ranking of the nation's largest sports facility architecture and architecture/engineering (AE) firms for 2022, as reported in Building Design+Construction's 2022 Giants 400 Report.
Industry Research | Nov 8, 2022
U.S. metros take the lead in decarbonizing their built environments
A new JLL report evaluates the goals and actions of 18 cities.
Hotel Facilities | Nov 8, 2022
6 hotel design trends for 2022-2023
Personalization of the hotel guest experience shapes new construction and renovation, say architects and construction experts in this sector.
Green | Nov 8, 2022
USGBC and IWBI will develop dual certification pathways for LEED and WELL
The U.S. Green Building Council (USGBC) and the International WELL Building Institute (IWBI) will expand their strategic partnership to develop dual certification pathways for LEED and WELL.
Reconstruction & Renovation | Nov 8, 2022
Renovation work outpaces new construction for first time in two decades
Renovations of older buildings in U.S. cities recently hit a record high as reflected in architecture firm billings, according to the American Institute of Architects (AIA).
Sponsored | Steel Buildings | Nov 7, 2022
Steel structures offer faster path to climate benefits
Faster delivery of buildings isn’t always associated with sustainability benefits or long-term value, but things are changing. An instructive case is in the development of steel structures that not only allow speedier erection times, but also can reduce embodied carbon and create durable, highly resilient building approaches.
Building Team | Nov 7, 2022
U.S. commercial buildings decreased energy use intensity from 2012 to 2018
The recently released 2018 Commercial Buildings Energy Consumption Survey (CBECS) by the U.S. Energy Information Administration found that the total floorspace in commercial buildings has increased but energy consumption has not, compared with the last survey analyzing the landscape in 2012.
Sports and Recreational Facilities | Nov 7, 2022
Gilbane, Turner, Populous tapped to design and build new Buffalo Bills stadium
The joint venture of Gilbane Building Company and Turner Construction Company, in association with 34 Group, has been selected to provide construction management of the planned new NFL stadium for the Buffalo Bills in Orchard Park, N.Y. The project team also includes the project management firm, Legends Project Development, and Populous as the designer.