Solar Light Manufacturers, Solar Lantern Manufacturers, Solar Lights China
People began to realize the long-term can not rely on traditional energy sources. Especially in recent years to reduce pollution of surface energy and the environment facing the problem of fossil fuel resources, so the application of solar cells has been put on the agenda of governments. Since 1990, the beginning of the development of solar power combined with the people, "grid-connected photovoltaic system" (in parallel with the mains solar cell power generation system) began to promote solar cells are constantly new structures and manufacturing technologies are developed.
So far solar cells have been developed to the second generation. 1st generation silicon and polycrystalline silicon solar cell includes two kinds, industrial product efficiency is typically 13% -15%, is now available for industrial production, profits obtained solar cell refers to the first generation of batteries. However, due to the production process and other factors make this type of battery production cost is higher. 2nd generation solar cells are thin film solar cell, its cost is lower than the first generation of l, can significantly increase the battery plate manufacturing area, but less efficient than the first generation. In the future 3rd generation solar cells should have the following characteristics: a thin film, high efficiency and rich raw materials and non-toxic. 3rd generation approach is expected to achieve cell efficiency include: laminated battery, multi-band photovoltaic cells, impact ionization, photon down conversion, hot carrier battery, thermal ionization, thermal solar batteries.
PV industry has developed rapidly. According to 2004 data analysis, various solar cell silicon solar cells accounted for 98% of total production of crystalline silicon solar cells accounted for 84.6% of total output, polycrystalline silicon solar cells accounted for 56% of the total. 2005, world solar cell production 1656MW, of which Japan continued to hold the first place, 762MW, accounting for 46% of world production; Europe is 464MW, accounting for 28% of total production; US 156MW, accounting for 9% of total production; other 274MW , accounting for 17% of total production. In 2005, the world PV market installed capacity of 1460MW, an increase of 34% over 2004, of which Germany is installed at most, to 37MW, up 53 percent over 2004, accounting for 57% of the world total installed capacity;
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