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- 1. Save 50-85% on Lighting The 5 Myths of LED Lighting Bright Green Systems Arizona & Colorado Donovan Hardenbrook August 21, 2012
- 2. Agenda Introductions LED Lighting and Moore's Law The 5 Myths of LED Lighting A Full Service Approach 9/6/2012 2
- 3. Who We Are • Bright Green Systems was formed as an Energy Distribution Company distributing energy efficient LED products and energy creating solutions. • BGS was founded in response to a market need to both acquire and finance LED/high efficiency lighting products • Through Bright Green Finance 24-60 month loans and full- payout leases are available • We provide a full service experience with lighting analysis, rebate and incentive assistance, financing and installation. Our mission is to deliver the best LED products and solutions available. We will save our clients money the moment they flip the switch while creating new standards in environmental responsibility.
- 4. Moore’s Law for LED Lighting 9/6/2012 4
- 5. Moore’s Law for LED Lighting The efficiency and light output of LED lighting doubles every 36 months CREE Examples 113 l/w product 170 l/w prototype 231 l/w R&D LED lamps are semiconductors! 9/6/2012 Source: Wikipedia 5
- 6. The 5 Myths of LED Lighting 9/6/2012 6
- 7. The 5 Myths of LED Lighting 1. LEDs don’t save power 2. LEDs aren't bright 3. LEDs are made in China 4. LEDs aren't reliable 5. LED lighting is expensive 9/6/2012 7
- 8. Myth #1: LEDs Don’t Save Power Introduced Lumens Efficiency / Watt Incandescent 1800’s 13.8 -15.2 2.0 - 2.2% Tungsten glass halogen Fluorescent 1939 60 9% T12 Magnetic Ballast Gas Discharge 1964 65 - 115 9.5 - 17% Metal Halide LED Lighting 1961 4.5 - 150 0.6 - 22% * Source: Wikipedia Theoretical limit for LED is 400 lumens/watt! 9/6/2012 8
- 9. Myth #2: LEDs Aren’t Bright • LED fixtures produce a soft voluminous white light that resembles natural daylight • Less glare • Fluorescent fixtures produce a green hue • LED lighting doesn’t attract insects! 9/6/2012 9
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- 13. Which is More Appetizing? 9/6/2012 13
- 14. Myth #3: LEDs are Made in China CREE is the global leader in the “LED Lighting Revolution” US company founded in1987 R&D Centers in NC, CA and China US Manufacturing Durham, North Carolina Racine, Wisconsin 90% of material suppliers are from the US Lusio headquartered in Overland Park, Kansas 9/6/2012 14
- 15. Myth #4: LED’s Aren’t Reliable 9/6/2012 15
- 16. CREE LED Lighting SiC & GaN semiconductor vs GaAs Integrated design improves reliability Driver LED semiconductor Heat sink Result: 0.5% reliability for 50,000 - 125,000 hours Incandescent mean lamp life is 750 hours 50% of CFLs go out after 10,000 hours 50% of Fluorescent tubes go out after 20,000 hours 9/6/2012 16
- 17. Myth #5: LED Lighting is Expensive Reduces energy between 55-85% Reduces annual lighting maintenance cost between 70-90% 9/6/2012 17
- 18. Lighting Investment Factors to Consider Cost of fixtures 33% Installation labor costs 5% Cost of electricity 7% Lighting rebates and 8% subsidies Potential tax benefits 9% 28% Other 10% Maintenance costs
- 19. Lighting Cost Drivers Energy costs Electric rates Usage Hours of operation Maintenance Costs Maintenance contracts Lamp inventories Lost production time Safety considerations 9/6/2012 19
- 20. CREE LED Lighting is No Myth! LED lights saves power LED lights are bright CREE LED lights are made in the US CREE LED lights are highly reliable LED lighting is INEXPENSIVE 9/6/2012 20
Notas del editor
- The development of LED technology has caused their efficiency and light output to rise exponentially, with a doubling occurring about every 36 months since the 1960s, in a way similar to Moore's law. The advances are in general attributed to the parallel development of other semiconductor technologies and advances in optics and material science. This trend is called Haitz's law after Dr. Roland Haitz.[27]In February 2008, a luminous efficacy of 300 lumens of visible light per watt of radiation (not per electrical watt) and warm-light emission was achieved by using nanocrystals.[28]In 2001[29] and 2002,[30] processes for growing gallium nitride (GaN) LEDs on silicon were successfully demonstrated, yielding high power LEDs reported in January 2012.[31] Epitaxy costs could be reduced by up to 90% using six-inch silicon wafers instead of two-inch sapphire wafers.[32]In 2011, Zhong Lin Wang from the Georgia Institute of Technology discovered that the energy efficiency of Piezoelectric UV LEDs can be increased by 400% (from 2% to 8%) by using zinc oxide nanowires.[33]
- Theoretical limit (white LED) 260.0–300.0[26] 38.1–43.9%white LED (raw, without power supply) 4.5–150 [17][18][19][20] 0.66–22.0%
- Cree was started at North Carolina State University by Eric and Neal Hunter and Calvin Carter, who researched SiC applications. In 1987, the founders spun off from the university to start Cree Research and to continue experimenting with silicon carbide, primarily with federal funding (see Figure 2). By 1991, the company shipped its first-to-market blue light LED and went public in 1993. Until about 2005, Cree was a merchant chip supplier with a limited number of customers, located primarily in Asia. When Cree decided to enter the LED lighting component business, the company emerged from its role as a chip supplier to become a leading player in lighting LEDs. The company then started to climb the value chain, focus on traditional marketing channels, develop new sales outlets and create a brand image for Cree as a “revolutionary LED lighting leader.”
- LEDs are often used in consumer electronics, back lighting, automobile displays, traffic lights, street lighting, and display signs. General illumination and liquid crystal display (LCD) televisions and computer screens are the fastest growing applications for LEDs. Rapid adoption of HB-LEDs and the emergence of new applications have resulted in a surge in demand for LEDs, constraints in manufacturing capacity and a slowdown in average selling price for HBLEDs (Rebello, 2009).
- Cree develops and manufactures its semiconductor materials and devices primarily based on silicon carbide (SiC), gallium nitride (Bardsley Consulting et al., 2010) and related compounds (Cree, 2009a). The physical and electronic properties of SiC and GaN offer technical advantages over traditional silicon, gallium arsenide (GaAs), sapphire and other materials used for certain electronic applications.