The market penetration rate of LED lamps has reached 60

According to the report of the United Nations Environment Program, lighting electricity accounted for of the total electricity demand in 2010. IHS estimates that the annual total revenue of the lighting market is close to US $1 trillion. Rising electricity prices, concerns about climate change and the desire for energy independence are the main reasons for the lighting market to turn to efficient and energy-saving light sources. According to a recent US Department of Energy (DOE) According to the report, lighting consumption in the United States accounted for about of the total electricity consumption in 2010. The report also mentioned that by 2025, solid-state lighting (SSL) Technology can save 217 megawatt hours of electricity per year (terawatt-hours, TWh) , About 1/3 of the current electricity consumption in the United States, equivalent to saving about 2. Of energy. 5 trillion British thermal units, which is approximately equal to the sum of wind power generation in the United States in 2025 or the sum of 12 solar power stations in 2025. According to the electricity price 0. One dollar of electricity is equivalent to saving 217 billion US dollars per year, equivalent to 20 million American households lighting electricity per year. This assumption is based on significant technological advances in achieving efficient SSL and extensive market applications. This shows that SSL provides the opportunity to significantly reduce energy consumption, thus improving US domestic energy security and reducing greenhouse gas emissions. Specifically, it is estimated that by 2025, SSL light sources will need to achieve 200 lumens per watt (Lumens/watt) The market penetration rate of lamps and lanterns can reach about 60 to realize the energy-saving potential of 21. 7 billion kilowatt-hours. Although this goal is ambitious, it can be achieved and requires a lot of scientific and technological improvements. In the past year, SSL has shown some very significant progress: 1)The usage of SSL products continues to increase. In 2013, all LED lighting application types in the United States increased, more than doubling from 2012, that is, 1. 0. 5 billion. 2) Correspondingly, the annual energy cost saved by using LED in 2013 has more than doubled from the previous year, about 1. 8 billion US dollars, which is enough to cover the annual lighting electricity bill of more than 14 million US households. 3) CREE and Philips have announced that the lamp samples have reached 200 lumens/watt, proving the feasibility of reaching a high performance level. 4)LG Chemical commercial organic light emitting diode (OLED) The panel has a efficacy of 60 lumens/watt and a color rendering index of 90. 5) Konica Minolta has developed the OLED panel prototype L50, which has a life span of 55000 hours, an area of 15 cm² square meters, a candlelight device per square meter, and a function of 131 lumens/watt. The developed flexible OLED panel has a thickness of only 70 microns. 6)LEDA- The price of lamp continues to decline. The price of A19, which is equivalent to 60 W, is about 10 US dollars, while that of dimmable lamps is only 13 US dollars, this price has even dropped further in some areas or utilities due to rebates. 7) Los Angeles has completed a four-year city-wide street lamp replacement plan and has installed more than 140 thousand LED street lamps. More than 3. 3 million LED street lamps are installed in the United States.