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
| Oct 12, 2011
Bulley & Andrews celebrates 120 years of construction
The family-owned and operated general contractor attributes this significant milestone to the strong foundation built decades ago on honesty, integrity, and service in construction.
| Oct 12, 2011
Consigli Construction breaks ground for Bigelow Laboratory Center for Ocean Health
Consigli to build third phase of 64-acre Ocean Science and Education Campus, design by WBRC Architects , engineers in association with Perkins + Will
| Oct 11, 2011
AIA introduces five new documents for use on sustainable projects
These new documents will be available in the first quarter of 2012 as part of the new AIA Contract Documents service and AIA Documents on Demand.
| Oct 11, 2011
Pink light bulbs donated to Society of Memorial Sloan-Kettering Cancer Center
For every Bulbrite Pink Light Bulb that is purchased through the Cancer Center Thrift Shop, 100% of the proceeds will be donated to help support breast cancer research, education, screening, and treatment.
| Oct 11, 2011
ThyssenKrupp elevator cabs validated by UL Environment
The conclusive and independent third-party validation process is another step toward a green product line.
| Oct 11, 2011
Ballard Spahr launches real estate recovery group
The new group represents an expansion of the company’s Distressed Real Estate Initiative, which was launched in 2008 to help clients throughout the country plan, adapt and prosper in a challenging economic environment.
| Oct 11, 2011
Onex completes investment in JELD-WEN
With the completion of the JELD-WEN investment, Onex Partners III is approximately 40% invested.
| Oct 7, 2011
GREENBUILD 2011: Demand response partnership program announced at Greenbuild 2011
Program will use USGBC’s newly revised LEED Demand Response credit as an implementation guideline and leverage its relationships with the building community to foster adoption and participation in existing utility and solution provider demand response offerings.
| Oct 7, 2011
GREENBUILD 2011: Otis Elevator announces new contracts for sustainable building projects
Wins reinforce Otis’ position as leader in energy-efficient products.
| Oct 7, 2011
GREENBUILD 2011: UL Environment releases industry-wide sustainability requirements for doors
ASSA ABLOY Trio-E door is the first to be certified to these sustainability requirements.