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With the broad prospects of Dongfeng Solar energy, as a sustainable energy source for sustainable use, has great potential for development and application. Solar energy is the most basic form of energy for human survival and development. From the perspective of the development of modern science and technology, advances in solar energy development and utilization technologies may determine the future lifestyle of human beings. In addition, the pressure of environmental degradation and the need to reduce CO2 have promoted the use of renewable energy. In the next few decades to one hundred years, traditional thermal power generation (coal, oil, natural gas) will be less and less. The nuclear energy crisis brought about by the earthquake and tsunami in Japan will prompt humans to re-examine the use of nuclear energy. The sustainable development of human society, the urgent need for inexhaustible new energy, the use of sunlight to turn light into electricity photovoltaic technology is the most direct and most effective way and method. Therefore, solar power generation will become the mainstream of energy supply.
According to iSuppli's latest forecast, the global PV installed capacity forecast for 2011 will reach 22.2GW. In the traditional market in 2011, Germany is leading the way with 9.5 GW of new installed capacity, Italy is close to 2 GW; Czech installed capacity will decline; France's installed capacity will drop from 1080 MW to about 700 MW. In emerging markets, the US has grown from 1GW in 2010 to 2GW; China's new installed capacity is expected to expand from 400MW to 1GW. The launch of emerging markets can make up for the shrinkage of some traditional markets in Europe. It is expected that the global installed capacity of photovoltaics will still maintain a growth rate of 30% in 2011.
According to the production process of crystalline silicon cutting, about 25-30 tons of wafer cutting blades are required for each 1 MW solar cell. According to the formula 1GW=1000MW, it is estimated that the domestic demand for wafer cutting cutting materials in 2011 will be about 37.50-45 million tons.
The fierce competition pattern is beginning to emerge With the vigorous development of the photovoltaic industry, the cutting blade industry is gaining momentum, industry competitors continue to join, and market competition is becoming increasingly fierce. After years of development, the domestic crystalline silicon wafer silicon carbide cutting edge material industry has formed Henan Xinda New Materials Co., Ltd., Pingdingshan Yicheng New Materials Co., Ltd., Tianjin Nanxing Abrasives Co., Ltd., Tonghua Hongxin Abrasives Co., Ltd. The company, Weifang Liuhe Co., Ltd., Zhuhai Omega Technology Co., Ltd. and other six companies led the industry competition pattern. The development of diamond wire is still in the ascendant, but because diamond wire has higher cutting efficiency and low carbon environmental protection than silicon carbide, diamond wire has a longer-term application prospect. Major domestic diamond manufacturers have started to launch diamond wire cutting projects. The product is in short supply .
Vigilance risk According to different production technologies, solar cells are classified into crystalline silicon solar cells and thin film solar cells. The production technology of crystalline silicon solar cells is relatively mature and is widely used. In recent years, due to the high cost of crystalline silicon solar cells and the continuous advancement of thin film solar cell technology, the market share of thin film batteries has expanded, which has also had a certain degree of impact on the crystalline silicon solar cell market. Due to the maturity of crystalline silicon solar cell technology, and with the decline in polysilicon prices, the cost of crystalline silicon solar cells is reduced to a large extent; in addition, the conversion efficiency of thin film solar cells is low, the land area required for installation is large, and the cost of equipment is invested. Higher, so crystalline silicon solar cells as a major photovoltaic power generation products are not substitutable in the short term.
At present, the silicon wafer cutting adopts the wire cutting technology, and the wire cutting technology belongs to the rolling and cutting, and is suitable for the cutting of the silicon wafer for the solar cell. In the selection of cutting blade materials, long-term repeated experiments have proved that silicon carbide is the most suitable material that can meet the cutting requirements in terms of hardness and cost. The wire cutting technology using silicon carbide cutting material does not last for a long period of time. It has an alternative. However, it does not rule out the existence of breakthroughs in new technologies in the future, and the possibility of substitution for silicon carbide cuttings.
Countries around the world have adopted relatively strong subsidy policies and support policies for the solar photovoltaic industry, laying a solid foundation for the development of the photovoltaic industry. Since 2009, China has included the solar photovoltaic industry in industries that are supported by national policies, and has introduced a series of preferential policies and subsidy policies, which have strongly supported the development of the domestic photovoltaic industry. The wafer cutting blade belongs to the upstream of the solar photovoltaic industry. The development direction is in line with the national industrial policy. The support of industrial policy provides a good external environment for the stable development of the industry. If the state changes the industrial policy of the solar photovoltaic industry, it will have a greater impact on the operation and development prospects of the industry.
China's super-hardness In the global warming, the deterioration of human ecological environment, the shortage of conventional energy and environmental pollution, how to deal with the energy crisis, and actively develop and utilize new energy and reduce environmental pollution have become common problems faced by all countries in the world. As one of the clean and safe energy sources, solar energy has become the focus of attention of all countries in the world. As an indispensable special cutting material in the photovoltaic industry chain, diamond wire will surely enter the fast lane with the broad prospect of the photovoltaic industry.