Current Title 24 Building code requirements call for use of high-efficacy lighting in a limited number of residential space types. Builders are allowed to install low efficacy lighting if they also install dimming controls. However, significant load reduction and energy savings over current code-compliant designs can be achieved through the use of All High-Efficacy (AHE) lighting design practices.
California Quality Standards
On June 10, the California Energy Commission unanimously approved building energy efficiency standards that will reduce energy costs and increase comfort in new and upgraded homes and other buildings.
The standards, which take effect on Jan. 1, 2017, focus on three key areas: updating residential requirements to move closer to California's zero net energy goals, updating nonresidential and high-rise residential requirements, and improving the clarity and consistency of existing regulations.
A number of lighting manufacturers now produce LED replacement lamps for traditional 60W incandescent lamps, and stakeholders at the state and national levels face decisions regarding quality standards for this product category. To assist these stakeholders and assess the current state of this segment of the lighting market, CLTC performed photometric and electrical tests on samples of 26 commercially available A19 and A21 omnidirectional LED replacement products.
Jade Sky Technologies (“JST”) collaborated with UC Davis's California Lighting Technology Center (CLTC) on a project designed to further the development of replacement lamps that meet the Voluntary California Quality LED Lamp Specification. Lab testing and characterization at CLTC showed that lamps incorporating JST's driver architecture met, or exceeded, the California Quality specification, using cost-effective and easily accessible components.
Since its establishment in 2003, the California Lighting Technology Center (CLTC) at UC Davis has conducted extended photometric and electrical testing of light sources. During the last 10 years, CLTC has been successful in establishing an array of testing facilities, some with unique capabilities, including complete photometric and electrical testing laboratories, and chambers for lifecycle testing under customized operational conditions.
This working paper, co-written by CLTC Directors Michael Siminovitch and Konstantinos Papamichael, urges manufacturers, regulators and utilities that offer product incentives to consider quality and consumer satisfaction first when it comes to LED products. Their arguments in favor of lighting quality, over efficiency, were also presented in "Trading Up," an article published in the August 2011 issue of LD+A.
Working in partnership with California's energy stakeholders, CLTC has created a third-party LED lamp testing program and a database for test results. The LED Performance Database is designed to help utilities and other organizations understand how the LED lamp market is evolving and identify which lamps meet the Voluntary California Quality LED Lamp Specification.
A growing number of LED products are entering the market, adding to the many choices consumers already face. By 2025, 60 percent of residential lighting across the U.S. will likely be LED-based. While nearly all LED lighting choices offer energy savings, not all LED products are created equal, and LEDs may not always be the best type of lamp to use. Professor Michael Siminovitch, director of the California Lighting Technology Center at UC Davis, urges people to consider five things when looking for the right light.
The retail sector constitutes one of the largest energy consumers in the U.S., and halogen parabolic aluminized reflector (PAR) and multifaceted reflector (MR) lamps are common retail lighting choices. LED replacement lamps have the potential to transform lighting energy use in this sector, and manufacturers of LED PAR and MR lamps now claim comparable photometric performance, as well as much greater longevity, than traditional halogen lamps.