Dial-In Number 866 299 3188 Conference Code 913 551 7554 #
Can be downloaded in word here: R7 Roundtable Conference Call March 12
Call notes March 11, 2010
Marcus Rivas: EPA Region 7
Jeff Fiagle: Iowa Department of Natural Resources
Jerry Cassel: Market Development Manager LED/SSL, GE
Jeff Eaton: GE
Marie Steinwachs: University of Missouri
Craig Bernstein: Regional Representative for Energy Star
Ryan Hamel: KSU PPI
Shirley Niemeyer: UNL
Stacy Hawkey: University of Nebraska Lincoln, Biological Systems Engineering
Cathy Colglazier: Bureau of Environmental Field Services
Erin Bass: Pollution Prevention Regional Information Center
TOPIC: LED Lighting
Marcus: invest in future and greater efficiencies for LEDs
Jeff Eaton: intent is to ground in terms of what LEDs are and what they are not. You can ask/answer intelligent questions about the technology. Beneficial to have a background in technology, you can know what LEDs are and what they are not.
Jerry Cassel: talk about changing market and trends in the industry, LED 101, industry cautions and pitfalls.
Industry Trends: Originally developed in LEDs, common in exit signs, music shows and performance, signage, transportation, specialty displays, general illumination especially surface parking lots.
Out of “trinket phase” into high output applications in global economy.
Significant growth opportunity – 30% growth in architecture alone. 109% in outdoor lighting.
Inhibitors: measuring LEDs v. conventional light sources. Collaboration with utilities/rebate programs helps adoption (cost/payback). EPA/DOE support has helped for adoption.
We are now at the point with LEDs that we were with CFLs 10 years ago. LED drivers was 2 years ago.
Goal right now is to focus on benefit and how end users will benefit from adoption. Growth cycle still comes down to cost, performance, acceptance, and penetration of the global market.
US DOE is taking action on LEDs through standards, quality advocates, Caliper testing programs, and Energy Star Ratings.
LED 101: efficiency of cool light are more efficient that warm light
LED industry is remaking itself every 6 months. Common across any electronics industry. Same downward projection around costs for LED. Adoption will help drive costs.
Approximately 5 major chip makers. Anyone making LEDs will purchase from these suppliers.
Industry Cautions and Pitfalls: three ways to make LEDs: RGB, Blue Chip & Yellow Phosphor, Violet & Remote Multi Phosphors. Pitfalls to each technology. Color consistency can be a problem as well as efficiency about a certain Kelvin. Binning is a way of sorting color for LED – better color quality but can drive costs.
Thermal management and packages: has to do with life and longevity of LED system. Heat generated from LEDs needs to be dealt with by conduction or convection.
Electrical: several ways to wire chips together: serial, parallel, series-parallel.
Ratings: can produce chips that are 130-150 lumens/watt. Typically not found on the street. Commercially available more like 100 lumens/watt. Traditional lamps rated at 50 – 50% mortality. LEDs rated at 70% lumen maintenance. LM-79 and LM-80: standards that provide a consistent test and measurement method of LED based products. LM-79 info is used on the Lighting Facts (nutrition) Label. LM-80 requires 3 different tests recorded every 1000 hours for 6000 hours (not very common).
Top 10 questions to ask LED vendor by GE (will be sent out to everyone by Marcus).
GE focused on award winning systems. Working on Tetra architectural systems, LED outdoor fixture offerings. A lot of focus on parking structures and garages. Also emphasizing energy savings in this type of lighting. Also working with refrigeration and LED light casing.
OLEDs are a flat, diffused surface. Flexible, bendable, color changing. Still in research phase. GE is working on it. Expects products in 2013.
Downside to LEDs is waste produced when the chips are actually being produced, but no mercury and electricity being consumed is decreased.
LEDs could be used to replace mercury lamps/barn burners, but if end user is paying a flat rate, not going to influence adoption. It is a great direct substitute. Functionality – it’s probably better. Longevity is where payback comes into play.
Emergence Alliance is promoting DC grids within a building so that there is no longer AC.
Mondays at noon (ET): 30 min webinar on various topics. Held by GE. Potentially can be added to regional calendar.