China is still a shortage of polysilicon materials


Polysilicon is the solar photovoltaic industry, electronics industry and basic materials. In recent years, the world’s semiconductor integrated circuit industry and the rapid development of solar PV industry, especially by driving the development of solar cell industry, polysilicon market is growing rapidly. The polysilicon supply and demand imbalances have become increasingly prominent, but also attracted worldwide attention.

In today’s energy has become tighter, increasing pressure on the environment under increasing renewable energy by the increasing attention of Governments, solar energy as an important renewable energy, its development and use of national sustainable development strategies have become an important part of . At present, China Renewable Energy Scale-only 8%, the future development of space is very wide. As the 21st century the most potential energy, solar energy industry in research and development, industrialization, market development have made considerable progress in solar cell industry has become the world’s rapid and steady development of the sunrise industries.

Space solar cell market is still a great

2006, cumulative worldwide installed photovoltaic solar energy systems have been more than 8GW, 2006 In the year to invest the funds solar cell manufacturing more than one billion U.S. dollars. According to EPIA prediction: by 2009, the global PV industry annual growth rate will reach 27% in 2010 to 2020 will reach 34% by 2010, annual world PV market installed capacity will reach 11.34GW (of which Japan 5GW, Europe 3GW, the United States 2.14GW, other parts of 1.2GW).

The current global solar cell market fundamentals from Japan, Europe and other international large companies occupied in 2006, China’s solar cell production capacity of large enterprises to upgrade, the Chinese solar company Suntech, Nanjing, CLP, Taiwan, Motech’s production has shown into the world top ten.

Since 2005, global solar cell market demand, the impact in the international environment, global demand growth, particularly the explosive growth in the European market, which the Chinese solar PV industry a huge room for growth. China’s solar power industry development by leaps and bounds, Suntech, China Light and Power Electric, Tianwei Yingli, Zevi LDK, Xinjiang new energy, Changzhou, TRW and other companies have access to growth, expanding production scale, technology has improved continuously, continuously enhance the competitiveness of enterprises.

The rapid development of China’s solar energy industry by the world’s attention. However, the Chinese solar cell industry development is to realize the change from quantity to quality, still face many problems to be solved: First, a tremendous shortage of raw materials, 90% of the silicon material dependence on imports, high prices, lack of business starts; second market outside , the rapid development of domestic PV industry relies on the rapid development of foreign markets pull 95% of exports, the rapid development of photovoltaic industry and the slow development of the PV market, a serious imbalance and disharmony between; Third, China’s solar energy industry started late, equipment, technology, human resources, weak core technology and independent innovation ability should be enhanced; Fourth, although China’s “Renewable Energy Law” has been formally implemented, but the lack of supporting policies, there is also a process of its implementation; 5 photovoltaic industry product quality is uneven, very negative long-term development of the industry; Six, follow the trend of the phenomenon still exist, brought the matter on, the herd instinct, easily lead to over-investment, nor conducive to the healthy and orderly development of the industry.

Polysilicon shortage situation will continue

Polysilicon material mainly used in two areas: semiconductor and solar cell industries, according to the purity of points can be divided into electronic and solar grade level. In recent years, the world’s semiconductor industry and the development of PV industry, especially by the development of silicon solar cells is driven to the rapid growth of polysilicon market, currently the world’s polysilicon supply and demand imbalance of the problem, it has become a worldwide concern . Global solar cell production in 2006 was 2521MW, of which crystalline silicon solar cell 2132MW, consumes about 23,000 tons of polysilicon, polysilicon demand accounts for about 50% of the total is about 45,000 tons; annual output of 37,000 tons of polysilicon, the market gap of about 08 000 tons, but that the current solar cell production capacity to assess, value of the gap more.

The face of continued shortage of polysilicon market situation, there are basic advantages of international polysilicon manufacturer to determine development plans, have a large-scale expansion. For example, the United States to spend one billion U.S. dollars Hemlock expand polysilicon production capacity, estimated in 2010, the company polysilicon output by 10,000 tons in 2006 to 31,000 tons; Germany Wacker is to build a new polysilicon manufacturing, polysilicon plant by 2010 output from the current 6,500 tons more than doubled, reaching 14,500 tons; and MEMC disclosed that the 2010 expansion of 2 times annual production capacity is expected to reach the post-2008 production capacity 6700 tons; Japan and Germany Hill company plans to invest 390 million U.S. dollars build a new polysilicon plant, with production capacity of 3,000 tons is expected to be completed in 2009.

At the same time the solar energy industry and the long-term development potential shortage of polysilicon raw materials, has attracted a large number of new technologies, new investors and accelerate the industrialization of the production process. These include the traditional Siemens method into DC Chemical in Korea, Hawaii Hoku, Spain Isofotonetal., France FrenchConsortium, Russia Crys-tal, Russia Russia / FSU, Japan M. Setek; other metallurgical purification technology with Norway Elkem, Japan, JFE, Japan’s Nippon Steel, the U.S. companies such as Dow Corning’s solar polysilicon project began large-scale production.

The original manufacturer of polysilicon international expansion and new projects of mass production release, the global polysilicon supply and demand imbalance situation will end in 2008 after gradually been reduced, after 2010 the international market price of polysilicon will fall as production growth, will become increasingly fierce market competition, technical and cost competition will be deciding the key to success.

In recent years, China’s integrated circuit and solar cell industry development, which greatly boosted the development of market demand for polysilicon materials. 2001 to 2006 in China integrated circuits (IC) with polysilicon 14.9% average annual growth of market demand, while domestic production of solar cells Zeyi annual growth rate of 157%. 6 years, polycrystalline silicon solar cell production and the demand for expanded 110 times. In 2006 the domestic production of 551 tons silicon integrated circuits, needs about 847 tons of polysilicon, solar cell output of 370MW, about 4100 tons of polysilicon demand, then total demand for nearly 5,000 tons of polysilicon, while the country is only 287 tons of polysilicon production, supply and demand ratio of less than 6%.

The rapid development of solar cells, leading to tight supply of polysilicon raw materials, most of the solar cell companies can not operate at full capacity, its production rate up to 30% to 40%. In this case, the price of polysilicon materials increased sharply, polysilicon is not normal “profits,” the situation has greatly stimulated the expansion of domestic business investment and initiative.

Investment in domestic polysilicon

State support for the original polysilicon projects put into operation and began to actively expand production, such as silicon in high-technology Co., Ltd. Luoyang domestic autonomy in December 2005 of 300 tons of polysilicon production projects based on the new 700 tons of polysilicon production expansion in 2007 successful trial production in May to start manufacturing of silicon in Luoyang in 2007 520 tons of polysilicon production, and was in December 2006 started construction of 2,000 tons of expansion.

Sichuan Xinguang Silicon Technology Co., Ltd. produce 1260 tons polysilicon production lines at the end of February 2007 into trial production, all production lines are running in debug, is expected to yield up to 300 tons of polysilicon this year; other projects have begun construction of 3,000 tons. Emei Semiconductor Material Plant (The) in January 2000 into 100 tons of polysilicon industry pilot demonstration line, 200 tons of polysilicon in 2006 to complete the technological transformation, and in June 2006 through the acquisition of Dongfang Steam Turbine Works has been in the construction of 500 tons / year polysilicon project, plans are put into the first half of 2008, planned annual output of 180 tons in 2007. National polysilicon production in 2007 is expected to break through 1,000 tons.

Beginning in 2006, and capital in the market driven by domestic dozen polysilicon project began to start the construction, some projects have started production. These projects are: Daquan Group in November 2006 in Chongqing Wanzhou invest in 3,000 tons of polysilicon plant, the introduction of production technology in Europe, a 1,500 tons from the November 2006 construction began, plans to start production in June 2008.

Jiangsu to PV by the Association Xin Technology Development Co., Ltd. (Group) Holdings Co., Ltd. joint venture with a number of energy companies in August 2006 in Xuzhou City, Jiangsu Province, started construction of polysilicon, brought in Germany, the United States, Japan and the introduction of production equipment U.S. chlorine hydride technology, a project of producing 1500 tons of polysilicon, fast construction, currently has the production of solar grade polysilicon.

Chongqing Chemical and Pharmaceutical Holding (Group) Company in the former Chongqing Tianyuan Chemical Industry Plant polysilicon production technology based on the use of independent technical and domestic equipment, construction in Chongqing Fuling annual 1250 tons polysilicon plant, planned by the end of 2008 production.

Another Group Co., Ltd. Wuxi win the lottery made by independent technology and equipment from October 2006 to start work on the project of annual output of 300 tons of polysilicon, was put into operation in August 2007 a successful trial, expected in 2007, about 50 tons of polysilicon production.

In addition, there are a dozen domestic companies to start building the polysilicon production lines, including: Yangzhou along Freshman of 1,500 tons, Ningxia Sunshine Silicon Industry a 1,500 tons, Qinghai, one of Asia Silicon Industry 1000 tons, Inner Mongolia Shenzhou Silicon Industry 1 1500 tons, 1,000 tons of Linghai Jinhua a, Sichuan Tong Wei 1 1000 tons, 1500 tons a CSG Yichang Yunnan Metallurgical Group, a 3,000 tons of such ground-breaking project is already building, or installing imported equipment, with Siemens technology production of high purity electronic grade and solar grade silicon.

In addition to these projects have been started outside of polysilicon, in view of reported and nearly 20 provinces and cities, or companies are also seeking technical and financial, planning or plans to build polysilicon project.

In addition, low-cost polycrystalline silicon solar cell production technology of unprecedented activity, large-scale production line started construction, such as the city side Xun Tianyu Technology Co., Ltd. to the Institute of Technical Physics, Chinese Academy of Sciences of the core technology the researchers used physical methods of production polysilicon solar cells, the purity of the product has reached trial 6N, annual output of 300 tons of large-scale production of self-development is improving directional solidification equipment, installation and commissioning.

Jinzhou New Century Quartz Glass Co., Ltd. developed high-purity quartz sand solar grade polysilicon, a small trial has drawn solar silicon products, is building an annual output of 300 tons of pilot test line.

Also with the Hebei University of Technology, Xiamen University in cooperation with metallurgical production methods and new technology high purity solar grade silicon material also has a new breakthrough, 4N products began large-scale production.


Source by vivi