Abstract At the end of the year, the photovoltaic industry finally began to recover slowly. Nowadays, major domestic enterprises have embarked on the path of capacity expansion of components. Compared with the blind expansion in 2011, this new round of recovery and recovery is driven by technological innovation.
At the end of the year, the photovoltaic industry finally began to recover slowly. Nowadays, major domestic enterprises have embarked on the path of capacity expansion of components. Compared with the blind expansion in 2011, this new round of recovery and recovery is driven by technological innovation.
Recently, the photovoltaic industry giant Poly GCL Energy Holdings Co., Ltd. (hereinafter referred to as GCL-Poly) released its second-generation monocrystalline silicon wafer product "Xin Single Crystal G2" and announced its commercial mass production. According to the test data provided by many of its customers, compared with the first-generation single crystal products released in 2011, the average photoelectric conversion efficiency of “Xin Single Crystal G2†has increased by 1.1%, and the performance of silicon wafer has been greatly improved. For the preparation of battery components above 280/335W (60/72PCS).
"Ixin Single Crystal G2" is positioned in the mainstream application of the high-efficiency wafer market, reflecting the product development strategy of GCL-Poly based on market demand, and will provide the most market competition for high-end customers, said Dai Bing, chief technology officer of GCL-Poly. Product of force.
Dai Bing said that since the release of the first high-efficiency silicon wafer product in November 2011, GCL-Poly has been maintaining a new high-efficiency silicon wafer product every six months. Each new product helps the photovoltaic industry to increase the output power of 5W mainstream components. . “Compared to the single crystal products made by the traditional Czochralski method, the “Xin Single Crystal G2†released this time has an additional efficiency gain of more than 0.5%, and the light attenuation is 1% lower on average. At the same time, it has a large area and low package loss. The characteristics are the latest product breakthroughs made by ingot single crystal technology, further enriching the technical solutions of GCL-Poly components and systems."
It is reported that "Xin single crystal G2", plus the original "Xin single crystal G1", high-efficiency polycrystalline S1, S2, S3, with different battery processes, can be prepared from 250/300W (60/72PCS) to 290/345W (60/72PCS) Multi-power component products further enhance the market leading power of GCL-Poly on the basis of high-efficiency polycrystalline products.
In this regard, Gully GCL executive president Shu Hua said: "The GCL-based high-efficiency silicon wafers rely on its significant competitive advantages to comply with and lead the market development needs, has become a relatively influential silicon wafer Category, and will gradually become the mainstream of single crystal products, 'Xin single crystal G2' relying on GCL-Poly's technical reserves and marketing forces, will provide customers with higher value added."
An industry insider believes that GCL-Poly has begun to further expand its monocrystalline market with other companies while continuing to expand its polycrystalline market share, completing the overall layout in the polycrystalline and single crystal markets.
The above-mentioned person said: "At present, the single crystal technology of GCL-Poly is the ingot casting method, which is different from the traditional Czochralski method. Nowadays, the direct-drawing single crystal products in the market are increasing the area in order to increase the efficiency. On the basis of this, this will add some additional costs. Xin single crystal is to increase unit conversion efficiency on the basis of constant area, which will reduce the cost of user manufacturing and installation."
It is understood that GCL-Poly's monocrystalline products now have the latest G2, as well as the previous G1, while the highly efficient polycrystalline products are S1, S2, S3, both of which are highly competitive in the market.
Compared with single crystal products, polycrystalline products are still the mainstream in the market. According to data from Solarbuzz, in 2010, 70% of the crystalline silicon technology routes of major PV module manufacturers chose polycrystalline, and in the first three quarters of this year, the proportion rose to 76%, and the proportion will be higher throughout the year. P-type single crystal and N-type single crystal, the market share of polycrystalline products in the market has accelerated in recent years.
Dai Bing believes that in the next 5 to 10 years, the photovoltaic industry will definitely be dominated by crystalline silicon. This is also the trend of the times. On the basis of expanding polycrystals, GCL-Poly will accelerate the development and layout of single crystals. "In the past two years, in terms of technological progress, the rate of polycrystals is much faster than that of single crystals. A large number of statistical data show that the conversion efficiency of single crystals does not exceed 3 percentage points of polycrystals, and polycrystalline has a cost-effective advantage. The conversion efficiency of polycrystals has also gradually approached single crystals."
Dai Bing said, "S2 plus ordinary battery production technology mass production can achieve a conversion rate of 17.6% or more, if advanced battery production technology can achieve more than 18.5% conversion efficiency, and S3 plus advanced battery production technology It can achieve a conversion efficiency of more than 19%, which makes the advantages of polycrystals very obvious."
The above-mentioned insiders said that with the increase of smog weather, the country has paid more and more attention to the clean energy represented by photovoltaics. This year, many favorable policies have been introduced. Although the growth of the European market is not obvious, the Chinese market is rapidly opening up. The market is also erupting, so the photovoltaic industry is attractive in the medium to long term. "At present, the state should try its best to ensure that relevant support policies are put to the fore, giving enterprises more encouragement and support in financing and innovation, and accelerating the recovery of the entire industry."
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