China's independent research and development of LED street lights illuminate energy-saving roads
A road illuminates an industry
Xiaobei 1st Road, Tiexi District, Shenyang City, is not too long or wide. It is an insignificant road. A streetlight renovation that can be done here has created a world record. According to the inspection of the Institute of Electronic Science and Technology Information of the Ministry of Information Industry, this is the first urban standard road in the world to implement functional lighting with high-power LED street lamps.
After research and careful comparison, the National Development and Reform Commission's research team calculated an account: the difference in power consumption between the two sources is based on the difference in power consumption. According to the daily use of 10 hours, each street lamp can save 1 per day and 1 kWh per day. ; Xiaobei 1 Road 58 lights, saving 27,732 kWh per year, saving electricity costs 18,026 yuan. According to the plan to promote the use of LED street lamps in Tiexi District, all 7800 street lamps in the district will be retrofitted with LED street lamps, saving at least 5 million kWh per year and saving more than 3 million yuan in electricity bills. This has not taken into account the savings in cable, power distribution, power consumption and maintenance of LED street lights, and does not take into account the long life of LED street lights. If Shenyang City replaces all LED street lights, it will save hundreds of millions of dollars every year. For Shenyang, which is dominated by thermal power generation, it is equivalent to saving about 60,000 tons of standard coal per year and reducing carbon dioxide emissions by nearly 110,000 tons.
From a national perspective, according to the statistics of the national street lamp industry in 2006, the national urban road lighting street lamps are 15 million baht, and the average annual growth rate has increased by more than 20% in recent years. Together with the illumination of other incandescent lamps and fluorescent lamps, the total amount is more than 90 million baht. If all of them are replaced by LED lighting products, the annual power saving will be more than 100 billion kWh, equivalent to the full-scale annual power generation of the Three Gorges Project. In China, electricity consumption for lighting accounts for about 12% of the total electricity consumption of the whole society. In the context of protecting the environment and saving energy and reducing emissions, LED lighting that truly opens up the era of green lighting has a broad use.
LED lighting, known as the fourth generation of light source after the light source, incandescent lamp and gas discharge lamp, has the advantages of environmental protection and a large amount of energy saving. It is known as the technological revolution in the field of lighting. What is it magical about? The reporter interviewed Da Ming Li Guang Lighting Co., Ltd., which has made substantial breakthroughs in the field of high-illumination LED. This is the world's first professional semiconductor lighting product manufacturer that applies high-efficiency high-power LED to urban standard road lighting and successfully realizes industrialization. .
Lin Yuejiang, the person in charge of the company, said that in fact, LED lighting is not new, and has been widely used in people's lives, from mobile phones, computers, digital cameras to automobiles, instrumentation indicators, urban landscape lighting, everywhere. However, because of the obstacles in key technologies, there has been no breakthrough in large-scale general lighting applications such as urban lighting street lights and building exterior spotlights. When the whole world was "cracked" here, "Da Ming Li Guang" 10 years of painstaking research and development finally came to the fore, and took off the pearl of the semiconductor lighting crown. "It can be said that a lamp has illuminated a new road for the energy-saving industry." Lin Yuejiang raised the topic and was still very excited.
A series of breakthroughs to meet multiple needs
Extensive construction of villagers' activities in rural areas and the erection of street lamps are one of the practical things for farmers in the construction of new rural areas in Shenyang. However, the square is bright, the street lights are on, and who is responsible for the electricity bill? Is there a way to benefit the peasants without increasing the burden on the peasants?
The villagers of Siwang Village, Liaozhong County, Shenyang City, used to go to the newly built village square to go to the gym and twist the songs. This square covers an area of ​​1,500 square meters and has 6 LED lights to provide night illumination for the square. The original plan selected 125W high-pressure sodium lamp, and finally decided to use the "Da Ming Li Guang" solar LED lighting system. The lighting effects of the two lighting schemes are quite similar. The light source of the "Da Ming Li Guang" solar LED lighting system is obviously superior to the traditional lighting products such as high pressure sodium lamps in terms of energy saving effect, color rendering and life. The square is newly installed with a lighting system. Compared with 1 traditional street lamp, the cost of one solar LED lighting system is 315?6 yuan per year. Each villager's square saves 1,533 kWh per year, saving 1893 yuan per year and backing 8 yuan. Perhaps a lot of terminology and comparative figures are not as direct as the feelings of the villagers. The most satisfactory advantages of the villagers are two--zero electricity and maintenance-free.
Sun Dong, director of the Construction and Construction Office of Shenyang Municipal Construction Committee, believes that the use of solar energy by LED provides an opportunity for the promotion of public welfare lighting in the new rural construction. On the basis of the pilot, Shenyang City will promote the energy-saving lighting construction of more than 100 village-level public service centers every year.
People's expectations for LEDs are obviously not only energy-saving, but also environmentally friendly and healthier. Since the LED semiconductor solid-state light source is non-polluting, there can be more changes in the shape, so the new solid-state electric light source LED lamp will provide more choices for consumers who have special requirements for electric light source modeling.
Beyond environmental protection, consumers are increasingly focusing on “green lighting†that is good for health. Given the stimuli of fluorescent strobes, many consumers have begun to choose carefully in the market. Recently, many cities have included the replacement of high-efficiency lighting sources in primary and secondary schools as “an important fact that directly affects the lives of the peopleâ€. And the real lighting fixtures with good color rendering, no stroboscopic light, soft light and so on, have to be the first LED.
It is based on the unanimous optimism about the prospects of LED lighting. The developed countries in the world are competing to list it as one of the priority industries, and are all committed to the conversion of LED technology into the intellectual property of general lighting. At present, in the entire industrial chain of LED, the epitaxial wafer and chip technology in the front stage of the industry are mature, and there is a large amount of production capacity to be released in the industry; the manufacturing of lamps in the latter stage of the industry and the solar energy and storage batteries that match LED lighting are even more The technology is mature, the industry is mature, and the production capacity is huge. The problem of light source packaging technology in the middle of the industry is the bottleneck of the whole industry development. Whoever gains a breakthrough in this industry link, whoever has the initiative to integrate the entire industry chain, thus gaining the opportunity of development . "Da Ming Li Guang" has made breakthroughs in the two technologies of high-power LED heat dissipation and packaging. It has core technology including phosphor, heat-dissipating resin, package mode, bracket structure and optical structure, which effectively solves the light source. The world's problems such as heat balance, light decay and uniformity in the package occupy the commanding heights.
However, relevant domestic experts have also expressed some worries: Can China's energy-saving products be rapidly promoted? Can China's technological breakthroughs in LED R&D maintain its advantages?
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