At present, silicon wafers and silicon materials account for about 40% of the cost of photovoltaic modules. With the declining mechanism of photovoltaic subsidies, the silicon wafers have a large pressure drop, and the diamond wire slicing has become an effective cost reduction tool. The growth of the PV industry is positively related to the expansion of the market size of the Diamond Line. The improvement of technology is the most effective way to reduce the cost of photovoltaics. In promoting the balanced development of single and polysilicon products and accelerating the process of PV parity, Jinang wire cutting technology is expected to be high. Cost reduction and efficiency increase are the driving force for the advancement of the photovoltaic industry. In 2009, the origin of Japan's diamond wire cutting silicon technology, in the country entered the golden period of development in 2014. Monocrystalline leading companies such as Longji and Zhonghuan have taken the lead in popularizing this technology. In the first half of this year, with the first production line of polycrystalline giant Poly GCL-Black Silicon put into production and immediately announced the free transfer of black silicon technology, there are institutional forecasts, diamond wire cutting technology is expected to usher in the country this year, forming a new "growth" in the photovoltaic industry. pole".
The turning point of photovoltaic cutting technology "two or three years ago, mentioning the diamond line is still unattainable. But this year can be considered as the turning point from the traditional mortar cutting to the diamond cutting." Director of the State Key Laboratory of Photovoltaic Materials and Technology Dr. Song Dengyuan said that this turning speed exceeded the expectations of many people. "Diamond wire wafer cutting and battery industry chain technology can significantly reduce photovoltaic power generation costs and solar cell efficiency, becoming a hot spot in the industry," he said. Due to the pressure of cost, environmental protection and quality in traditional mortar cutting technology, in recent years, diamond wire cutting technology has achieved rapid development in China. With the advantages of low silicon consumption per unit capacity, high cutting efficiency, low cost of auxiliary materials and slashable thin silicon wafers, diamond wire cutting technology is first applied in the field of monocrystalline silicon wafers. At present, in the field of single crystal, diamond wire cutting technology has basically replaced the traditional mortar cutting process. However, the diamond-cut polycrystalline silicon wafer has not been widely promoted, and the single polycrystalline pattern has also changed. Nearly 10% of the polycrystalline market share is occupied by single crystal. In the past ten years, crystalline silicon accounted for about 90% of the PV application market. Polycrystalline silicon wafers have always occupied the mainstream position in the photovoltaic market. By 2016, the polysilicon market share was about 70%, and the single crystal was about 20%. This gap can be seen from several sets of comparative data: in 2014, the proportion of diamond-cut polycrystalline and single crystals appeared disparity, which was 16% and 75% respectively. This gap has narrowed in the past two years, but it is still very different: although the proportion of diamond-cut polycrystalline silicon wafers jumped directly from 25% in 2016 to 60% in 2017, the ratio of single crystal diamond wire has reached 100. %.
It is in the midst of expansion of the industry. “2017 is the first year of diamond cutting in the polycrystalline industry. Its momentum is unimaginable.†Wu Ying, chairman of Yangling Meichang New Materials Co., Ltd. believes that in addition to driving the entire PV line into the King Kong Beyond the era of line slicing, this trend has also brought great opportunities to related companies such as diamond wire manufacturing and slicer manufacturing. Yang Ling Mei Chang is a good example of itself. The company started production in January last year, and realized an output value of 236 million yuan and a profit of 95 million yuan. By the end of 2016, it has grown to become the world's leading supplier of diamond wire. At present, China is the world's largest PV producer and the largest PV market. According to industry experience, each piece of silicon wafer (about 4W) needs to use about 1.5 meters of electroplated diamond wire. According to China's PV industry data, in 2016, the global polysilicon production capacity reached 490,000 tons, and the output was about 400,000 tons. China's polysilicon production was 19.4 tons, accounting for nearly 50% of the world's polysilicon production. In terms of silicon wafers, global production reached 74.8 GW in 2016, of which GCL-Poly's wafer production in 2016 reached 17.3 GW, which is significantly ahead of other global companies. In the first half of this year, the output of polysilicon, silicon wafers and battery chips in China was 115,000 tons, 36GW and 32GW respectively. It is foreseeable that the global demand for the Diamond Line will remain concentrated in China. EnergyTrend judged that it is expected that the global single crystal market share will reach 35%, 50% and 70% from 2017 to 2019. Assuming that the single crystal diamond wire is basically popularized, the penetration rate of polycrystalline diamond wire is 10%, 30%, 50%, and the demand for diamond wire for global photovoltaic use is 14.2 billion meters, 25.2 billion meters, and 33.4 billion meters, respectively. At the same time, the demand for sapphire is superimposed. It is estimated that the total demand of the global diamond line will reach 15 billion meters, 26.1 billion meters and 34.5 billion meters between 2017 and 2019. According to incomplete statistics, there are nearly 100 enterprises engaged in the manufacture of diamond wire, of which nearly 10 are listed companies, including two Japanese listed companies. Even so, the entire diamond-related market is still in short supply, and some companies say that “the first line is hard to findâ€. Perhaps, the diamond line and related industries are in the midst of expansion opportunities.
Promote the rapid development of photovoltaics “Jinang line slicing equipment is still mainly based on foreign production, but domestic slicing technology, especially diamond-cut polycrystalline silicon wafers, is in a leading position in the world. Because of the two major problems of risk of disconnection and difficulty in softening, the first few The diamond-cut polycrystalline silicon wafers have not been widely promoted in China, but the pace of industry exploration has not stopped. It takes time to upgrade the equipment and mature technology of polycrystalline chip manufacturers, and finally achieve a big breakthrough this year.†Sumeda Energy Holdings Dr. Pu Tian, ​​Technical Director, told the reporter. The industry breakthrough is reflected in the optimization of the preparation and application technology of the diamond wire, which can effectively reduce the risk of wire breakage when the diamond wire is cut. The technology of the cashmere additive, the black silicon technology or the pretreatment technology can effectively solve the problem of the difficulty of the cashmere. According to the reporter, at present, China's dry black silicon and wet black silicon technology routes have been mass-produced. Dr. Huang Xinming, vice president of JA Solar Holdings Co., Ltd. believes that the cutting of diamonds is an inevitable trend. The drastic reduction in costs will inevitably drive the innovation of related technologies and promote product optimization, so as to maintain the healthy and sustainable development of enterprises and industries. He believes: "By the integration of black silicon and PERC high-efficiency technology, on the basis of low-cost use of diamond-cut silicon wafers, it is also possible to achieve mass production with conversion efficiency of more than 20%." President Jin Shanming also said that polycrystalline to reach 285W, black silicon superimposed PERC is the first choice. He revealed that "in the process of promoting King Kong wire cutting technology, the huge demand of GCL-Poly has directly achieved the completion of the two diamond fiber manufacturers in the industrial chain." The popularity of diamond-cutting polysilicon wafers and black silicon technology will be The cost difference between multi-crystal and single crystal at the silicon end is pulled again, and the combination of black silicon and PERC, SE and MWT can further improve the mass production efficiency of polycrystalline cells and enhance the competitiveness of polysilicon solar cell routes. The continued demand for battery and component cost reduction and efficiency improvement in the PV market is expected to bring good market opportunities for diamond wire cutting and black silicon technology.
The turning point of photovoltaic cutting technology "two or three years ago, mentioning the diamond line is still unattainable. But this year can be considered as the turning point from the traditional mortar cutting to the diamond cutting." Director of the State Key Laboratory of Photovoltaic Materials and Technology Dr. Song Dengyuan said that this turning speed exceeded the expectations of many people. "Diamond wire wafer cutting and battery industry chain technology can significantly reduce photovoltaic power generation costs and solar cell efficiency, becoming a hot spot in the industry," he said. Due to the pressure of cost, environmental protection and quality in traditional mortar cutting technology, in recent years, diamond wire cutting technology has achieved rapid development in China. With the advantages of low silicon consumption per unit capacity, high cutting efficiency, low cost of auxiliary materials and slashable thin silicon wafers, diamond wire cutting technology is first applied in the field of monocrystalline silicon wafers. At present, in the field of single crystal, diamond wire cutting technology has basically replaced the traditional mortar cutting process. However, the diamond-cut polycrystalline silicon wafer has not been widely promoted, and the single polycrystalline pattern has also changed. Nearly 10% of the polycrystalline market share is occupied by single crystal. In the past ten years, crystalline silicon accounted for about 90% of the PV application market. Polycrystalline silicon wafers have always occupied the mainstream position in the photovoltaic market. By 2016, the polysilicon market share was about 70%, and the single crystal was about 20%. This gap can be seen from several sets of comparative data: in 2014, the proportion of diamond-cut polycrystalline and single crystals appeared disparity, which was 16% and 75% respectively. This gap has narrowed in the past two years, but it is still very different: although the proportion of diamond-cut polycrystalline silicon wafers jumped directly from 25% in 2016 to 60% in 2017, the ratio of single crystal diamond wire has reached 100. %.
It is in the midst of expansion of the industry. “2017 is the first year of diamond cutting in the polycrystalline industry. Its momentum is unimaginable.†Wu Ying, chairman of Yangling Meichang New Materials Co., Ltd. believes that in addition to driving the entire PV line into the King Kong Beyond the era of line slicing, this trend has also brought great opportunities to related companies such as diamond wire manufacturing and slicer manufacturing. Yang Ling Mei Chang is a good example of itself. The company started production in January last year, and realized an output value of 236 million yuan and a profit of 95 million yuan. By the end of 2016, it has grown to become the world's leading supplier of diamond wire. At present, China is the world's largest PV producer and the largest PV market. According to industry experience, each piece of silicon wafer (about 4W) needs to use about 1.5 meters of electroplated diamond wire. According to China's PV industry data, in 2016, the global polysilicon production capacity reached 490,000 tons, and the output was about 400,000 tons. China's polysilicon production was 19.4 tons, accounting for nearly 50% of the world's polysilicon production. In terms of silicon wafers, global production reached 74.8 GW in 2016, of which GCL-Poly's wafer production in 2016 reached 17.3 GW, which is significantly ahead of other global companies. In the first half of this year, the output of polysilicon, silicon wafers and battery chips in China was 115,000 tons, 36GW and 32GW respectively. It is foreseeable that the global demand for the Diamond Line will remain concentrated in China. EnergyTrend judged that it is expected that the global single crystal market share will reach 35%, 50% and 70% from 2017 to 2019. Assuming that the single crystal diamond wire is basically popularized, the penetration rate of polycrystalline diamond wire is 10%, 30%, 50%, and the demand for diamond wire for global photovoltaic use is 14.2 billion meters, 25.2 billion meters, and 33.4 billion meters, respectively. At the same time, the demand for sapphire is superimposed. It is estimated that the total demand of the global diamond line will reach 15 billion meters, 26.1 billion meters and 34.5 billion meters between 2017 and 2019. According to incomplete statistics, there are nearly 100 enterprises engaged in the manufacture of diamond wire, of which nearly 10 are listed companies, including two Japanese listed companies. Even so, the entire diamond-related market is still in short supply, and some companies say that “the first line is hard to findâ€. Perhaps, the diamond line and related industries are in the midst of expansion opportunities.
Promote the rapid development of photovoltaics “Jinang line slicing equipment is still mainly based on foreign production, but domestic slicing technology, especially diamond-cut polycrystalline silicon wafers, is in a leading position in the world. Because of the two major problems of risk of disconnection and difficulty in softening, the first few The diamond-cut polycrystalline silicon wafers have not been widely promoted in China, but the pace of industry exploration has not stopped. It takes time to upgrade the equipment and mature technology of polycrystalline chip manufacturers, and finally achieve a big breakthrough this year.†Sumeda Energy Holdings Dr. Pu Tian, ​​Technical Director, told the reporter. The industry breakthrough is reflected in the optimization of the preparation and application technology of the diamond wire, which can effectively reduce the risk of wire breakage when the diamond wire is cut. The technology of the cashmere additive, the black silicon technology or the pretreatment technology can effectively solve the problem of the difficulty of the cashmere. According to the reporter, at present, China's dry black silicon and wet black silicon technology routes have been mass-produced. Dr. Huang Xinming, vice president of JA Solar Holdings Co., Ltd. believes that the cutting of diamonds is an inevitable trend. The drastic reduction in costs will inevitably drive the innovation of related technologies and promote product optimization, so as to maintain the healthy and sustainable development of enterprises and industries. He believes: "By the integration of black silicon and PERC high-efficiency technology, on the basis of low-cost use of diamond-cut silicon wafers, it is also possible to achieve mass production with conversion efficiency of more than 20%." President Jin Shanming also said that polycrystalline to reach 285W, black silicon superimposed PERC is the first choice. He revealed that "in the process of promoting King Kong wire cutting technology, the huge demand of GCL-Poly has directly achieved the completion of the two diamond fiber manufacturers in the industrial chain." The popularity of diamond-cutting polysilicon wafers and black silicon technology will be The cost difference between multi-crystal and single crystal at the silicon end is pulled again, and the combination of black silicon and PERC, SE and MWT can further improve the mass production efficiency of polycrystalline cells and enhance the competitiveness of polysilicon solar cell routes. The continued demand for battery and component cost reduction and efficiency improvement in the PV market is expected to bring good market opportunities for diamond wire cutting and black silicon technology.
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