LED lamp penetration rate has reached 60
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According to the UN Environment Programme, in 2010, lighting electricity accounted for 15% of the world's total electricity demand. IHS estimates that the global total revenue of the global lighting market is close to $1 trillion. The rise in electricity prices, concerns about climate change and the desire for energy independence are the main reasons for the shift of the global lighting market to energy efficient light sources. According to a recent report from the US Department of Energy (DOE), US lighting consumes about 18% of total electricity consumption in 2010. The report also mentions that by 2025, relying on solid-state lighting (SSL) technology can save annually. 217 watts of electricity (terawatt-hours, TWh), about one-third of the current electricity consumption in the United States, equivalent to about 2.5 trillion British thermal units, which is roughly equal to the sum of US wind power in 2025. Or the sum of 12 solar power stations in 2025. Calculated according to the electricity price of 0.1 US dollars, equivalent to saving 217 billion US dollars per year, equivalent to 20 million American households lighting electricity every year. This assumption is based on the realization of efficient SSL significant technological advances and a wide range of market applications. This suggests that SSL offers significant opportunities to reduce energy consumption, thereby increasing domestic energy security and reducing greenhouse gas emissions. Specifically, it is expected that by 2025, the SSL light source needs to achieve 200 lumens per watt (lumen/watt), and the market penetration of the lamps will reach 60 or so to achieve the energy saving potential of 21.7 billion kWh. Although this goal is ambitious, it is indeed achievable and requires a lot of scientific and technological improvements.
In the past year, SSL has shown some very significant advances:
1) The usage rate of SSL products continues to increase. In 2013, all types of LED lighting applications in the United States increased, more than doubled from 2012, or 105 million.
2) Correspondingly, the annual energy savings from using LEDs in 2013 have more than doubled from the previous year, about $1.8 billion, which is enough to cover the annual lighting tariffs of more than 14 million American households.
3) CREE and Philips have announced that the luminaire samples have reached 200 lumens/watt, demonstrating the feasibility of achieving high performance levels.
4) LG Chemical Commercialized Organic Light Emitting Diode (OLED) panels achieve 60 lumens/watt efficiency and 90 color rendering index.
5) Konica Minolta has developed the OLED panel prototype L50, which has a life of 55,000 hours, a surface area of ​​15 square centimeters with a thousand candles per square meter, and 131 lumens per watt. The developed flexible OLED panel is only 70 microns thick.
6) The price of LEDA-lamp continues to drop. The A19, which is not dimmable equivalent to 60W, is priced at around US$10, and the dimmable lamp is only sold for US$13. This price is further reduced due to rebates in certain regions or utilities. .
7) Los Angeles completed a four-year streetlight replacement program and installed more than 140,000 LED street lights. The installed capacity of all LED street lights in the United States exceeds 3.3 million.