In the central government to expand domestic demand and promote economic growth environment, the new energy field is being unprecedented attention. According to the China Renewable Energy Association · Advanced revealed, the National Development and Reform Commission, the National Energy Board is studying the photovoltaic power generation policy support and subsidies, many provinces have begun to put into operation or planned PV projects. So, how photovoltaic technology developed to what extent? Originally belonged to the export-oriented Chinese PV industry could open its domestic application of the road?

And global synchronization, the rapid rise of China as the largest producer of solar cells, solar power as a clean and environmentally friendly forms of renewable energy use in recent years, the rapid development in the world, PV has a few links into resource contains an inexhaustible supply, power generation close zero emissions and other advantages. The past five years, the global PV industry average increase of 49.5%, in 2007 compared to 2006 is an increase of 56.2%; recent years, the rapid development of China's PV industry has become the world's largest producer of solar cells. 2000, China's polycrystalline solar panels production was only 3 megawatts to reach 1,088 megawatts by the end of 2007, more than Europe (1062.8 MW) and Japan (920 MW), ranking first in the world.

With China's huge solar cell production capacity compared to the application of photovoltaic power generation in the country is very small, the main obstacle is the high cost of development. China's photovoltaic industry is a typical export-oriented industries, the main raw materials and sales markets in foreign countries; domestic development is limited to remote areas without electricity, and a number of demonstration projects in big cities. In 2006, China's primary energy consumption, the solar only 0.51%; 2007, China PV power installed capacity is less than 1% share of the world, and its position far from producing countries. Compared with conventional power generation, photovoltaic power generation initially high investment cost, coupled with the lack of domestic photovoltaic industry for the strong support policies, so there is a certain distance from the commercial applications. Currently, the cost of photovoltaic power generation at 4 yuan / kWh, much higher than thermal power costs.

PV industry was "pyramid" structure, Chinese enterprises are mainly concentrated in the downstream industrial chain, industrial chain in the middle is more technical advantages. From the chain perspective, silicon-based solar cells http://www.sungoldpower.co.uk/ can be divided into two industries: silicon raw material extraction and purification → Ingot / Rod Production → Production → Components → battery power system.

PV industrial structure was "pyramid" type, number of competitors along different segments of the industry chain gradually increased substantially from top to bottom. In 2007, China has more than 500 photovoltaic companies and R & D units, mainly in the downstream industry chain, China Jiangxi LDK PV enterprises and Suntech are located in the industrial chain upstream and midstream.

From a technical point of view, China polysilicon production technology is relatively backward, silicon ingot / silicon rods manufacturing, battery manufacturing technology is more mature, China's polysilicon production technology is mainly based on a modified Siemens process, due process backward, the average energy consumption of the world's advanced level 1.5-2 times; and previous production shortage of supply, and more dependent on foreign imports. In Ingot / rods manufacturing sector, the major domestic manufacturers technology is relatively mature; battery manufacturing, most Chinese PV companies craft close to or reached the international advanced level.