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Long been engaged in solar cell research described the Great Wall Securities, Zhou Tao, 7 months, Lenovo has just raised the fourth investment of new funds, funding of advanced solar energy company in Zhejiang, the group of thin film solar production. Fellow, Institute of Semiconductors, Chinese Academy of Sciences has Xiang Bo told reporters that the human dream of long ago can get directly from sunlight, the energy needed for the birth of how long does it take to get weed out of your system for many years, but the traditional crystalline silicon solar cells have been because the high cost of photovoltaic conversion rate, shape, and not restricted large-scale promotion. Energy Office of Fangshan District, introduced the use of solar street lighting, storage only 2 hours a day of solar energy, you can use a whole night. Villagers told reporters that the solar lights well, but the fresh stuff is too expensive, an ordinary street lamp solar street lamp is several times the price, if the attached is a rainy day for several days, it is not so that the lights and three lights two on the bad days, one night, a quarter of the lights on this road is not lit. Take some places solar street light, the Zhou Tao estimated the cost of an ordinary street lamp about 2000 yuan, while the solar street lighting up to 8,000 yuan. Zhou Tao told reporters that thin film solar cell production process is very simple and does not require complex equipment, do not need to be purified to 99.9999% of crystalline silicon. In general, the traditional crystalline silicon solar cells cost is $ 4 / watt, while thin film solar cells cost only $ 2 / watt. Wukesong Indoor Stadium in Beijing Jingya across the hotel, on the use of Suntech to provide solar power generation system building facades, in fine weather, on the use of solar power, rainy weather to rely on traditional power grid. Zhou Tao is also a bold vision of the thin film solar shop on the highway, and then every 100 kilometers to build a solar battery replacement stations in the replacement station, after the energy input into the battery, so that people no longer need to drive on the road Canada out of gas, just change the battery at intervals to be unimpeded by. United States on December 11 last year, declared that the market will be covered with a series of thin film solar energy products, including solar radio headset and 33 cm wide plastic power generation volume. Han Xiaoping pointed out that there are many in China's western desert region, covered in these areas if the thin film solar cell, solar power will reduce the cost to 0.5 yuan / kWh, can and thermal power and hydropower competition. Zhou Tao told reporters that the traditional crystalline silicon cells for a 1000-watt light exposure meters, can power 150 watts, photoelectric conversion rate of 15%, while thin film solar photovoltaic conversion rate of only 6%. At present, thermal power generation cost is 0.2 yuan / kWh, hydro power generation cost is 0.5 yuan / kWh, while the cost of thin film solar power is still 1 yuan / kWh, although this price is equal to commercial peak, but to become mainstream, urgent need to keep costs down further.