Kunming solar lighting who is thin hair

This year the neijiang-kunming bright up thousands of solar street light. This year the neijiang-kunming bright up thousands of solar street light. However, compared with other domestic cities, sunshine 'favorite' kunming using solar lighting, also just a child just learning to walk. Two years to build 10 pilot at present, the township has been put into use in kunming of solar street lamps have more than 700 lamp. Including wuhua sirloin township, rural roads in anning city, public lighting, fuk road, no. 2, east ring road overpass and the district of small dry river road 3 public lighting of urban new roads; The dianchi LuYi celebrates the garden district, maple international two blue lighting system in residential area. In kunming, from kunming city technology bureau learned that, in this year, each county ( City) Area will be installed on not less than 20 sets of solar lighting system, 14 counties ( City) Area of at least 480 lamp solar street light will light up. This is the city of kunming this year launched 'green light project'. Streets and public places, school campus in the rural areas as the key point, in the villages and towns to pilot for the unit, through pilot, demonstration, utilizing solar energy technology in the kunming in the construction of new countryside. According to introducing, in 2010, the city will build 10 key demonstration; 2011 - In 2015, on the basis of successful experience in the demonstration, promotion of countryside to the city, to build 100 key demonstration. At present, has begun to take shape in the demonstration site anning city qinglong town, villages and towns, etc. In addition, according to the construction bureau of kunming city, the east road and surrounding xiba road also is likely to use solar photovoltaic lighting system. High cost lead to promotion slow city technology bureau of industrial and high and new technology development in Ye Ming said the concept, cost, technology is widely the main obstacle to solar photovoltaic power generation. It is understood that now used in the city of kunming for the cost of 12000 yuan/solar street lamps. Rural use slightly lower due to the intensity of illumination requirement, for the cost of 8000 yuan /. The cost of general lighting lamps at about 9000 yuan/lamp. According to experts, once the cost of solar energy in 5 yuan of above, is the general firepower electricity costs 10 times. In addition, the battery life of solar street lamps lights for 3 - 5 years, the price of a battery is 600 - 1500 yuan, an annual maintenance fee to late 200 solar street lamps - 500 yuan. Because of high input, the solar pv lighting system to promote or government investment to give priority to. 'In popularization of solar pv lighting system, in addition to the government guide, also have to rely on market operation. 'Ye Ming said. Costs in three years is expected to drop half the reason of the high cost of solar pv lighting system, silicon raw material prices and supply bottlenecks. Solar energy society in yunnan province xia feng, deputy executive director of the solar cells is crystalline silicon cells more, 70% of the cost from crystalline silicon. Although there are more than 30 yunnan metallurgical silicon or the manufacturer of industrial grade silicon material, annual production capacity of more than 100000 tons, but in polycrystalline silicon solar cell can use the material production field is blank. Solar cell production basic on imported raw materials. It is known that the LED street light, since last year, polysilicon prices rose sharply, from the most rising to $300, $50 a few currently remain at $250 to $300. 。 It is reported, yunnan metallurgical group, yunnan metallurgy research institute has plans to invest 3 billion yuan to establish factory in qujing, after the completion of will achieve an annual output of 3000 tons of high purity polysilicon materials. 'Can replacement with silicon solar battery, is the key to decrease the cost of photovoltaic power', xia feng said. Ye Ming told reporters: solar cells have the confidence to solve within three years of technical problems, at the appointed time, the cost of photovoltaic power generation can be reduced by 50% at least. According to reporter understanding, a kind of silicon solar cells have been born in yunnan normal university institute of solar energy laboratory, but exists the problem of low efficiency. Captured, xia feng said: 'technology to realize industrialized production, to reduce the cost. 'Patriotic nanliu home field, kunming has successively invested more than 1000 ten thousand yuan in the whole city to promote the solar street light. In the government in the construction of big city, however, local firms can only play a supporting role. Ye Ming tells a reporter, has been put into use in the solar street light, more than 90% of products from foreign companies. Nonlocal enterprise product weight is in the bid winner, cost-effective. Until the 1990 s, the country's largest solar cell production plants in yunnan. Now, hebei, shandong, jiangxi and other places of the solar cell production, enterprise scale is far more than the yunnan. Learned, days of yunnan's largest photovoltaic battery production enterprises, the annual output of 60 mw, is only 1/5 of the enterprise in shandong province. Not only that, the upstream and downstream production of key products and technologies and development of local enterprises appear lags behind, even in some areas is still blank. Ye Ming introduction, LED energy-saving lamps, etc. Products are all from foreign companies. Enterprises small in scale, production capacity is insufficient; Industrial development is not balanced for the development of photovoltaic industry in yunnan is two big weaknesses.