Thin film solar cells information in 2008

utorak, 28.09.2010.

Thin film solar cells information at 2008

April 2008, in the Hangzhou Economic and Technological Development Zone, an unassuming little building, Long Yan Energy Technology (Hangzhou) Co., Ltd. was formally established. The total investment of $ 24,000,000 of the company to do something very advanced: cadmium telluride thin film batteries and components can be. Although their products are still in laboratory research and development stage, to be officially put into operation in 2009, but they set up the first day the company got the biggest names in venture capital money Legend Capital and Legend Capital is also a partner for this "successful" investment is very pleased.

Different low-key and Long Yan, Chint Group for investment in solar energy under constant media attention. Chint production of thin film solar cells available in late 2007 to the present capacity of 100 MW. Managing Director of Chint Solar YANGLI 2011, will reach 400 megawatts of capacity. "The market demand, short supply, the product a production line to be taken away, completely a seller's market!" YANGLI happy exception.

Silicon thin-film battery supply crisis led to investment boom

In fact, back in the 70s of last century, amorphous silicon thin film to be developed, but the conversion efficiency is only half of the polysilicon has not been universal. In recent years favored the growing photovoltaic industry, triggered a crisis in the supply of silicon materials. Silicon raw material prices skyrocketing, making thin-film batteries once again surfaced. In 2007, the global thin film solar cell production reached 400MW, 181MW in 2006, compared with a substantial increase of 120% market share of 8.2% from 2006 to 12%.

Corresponding to this, following the thermal solar modules, polycrystalline silicon hot, the thin film photovoltaic cells has become the new investment hot spot areas. In June 2008 the German Photovoltaic Exhibition 2008, Taiwan's annual production capacity of only 30MW of green energy, to be signed orders amounted to 200MW, annual production capacity of six times in 2008; Yutong energy production yet, also made orders for 60MW. Tianwei change plans to invest 3.2 billion yuan for the amorphous silicon thin film solar cell projects; LDK announced in Nanchang building the most technologically advanced and largest thin film solar cell projects; July 2008, Johnson & Johnson 25MW of amorphous silicon photovoltaic film solar cell production line officially put into operation; Gan announced the formation of a joint venture to share and build an annual capacity of 50MW target film amorphous silicon photovoltaic cell production line. Previously, Suntech, Vosges stake in Rio Nisshin energy, variety of shares and other companies have also announced its entry into the field of thin film batteries.

Benchmark company First Solar

Many types of thin film solar cells, silicon thin film mainly contains type (amorphous silicon a-Si, microcrystalline silicon c-Si, the stack-type a-Si / c-Si, etc.) and the compound semiconductor (copper indium gallium selenide CIS / CIGS , cadmium telluride CdTe), and the new concept of dye-sensitized category.

Although the market share of thin film solar cells into less than one, the conversion efficiency, production yield, equipment costs and other problems to be overcome, however, a savings of thin film solar cell materials can be inexpensive glass, plastic or stainless steel substrate the manufacture of a large area of manufacturing, can be made flexible, easy to apply with the construction of exterior wall elasticity, etc., have been widely different solar industry, research institutions promising, will be the star of the next generation of solar photovoltaic products.

Amorphous silicon thin film solar cell technology to the largest number, while CdTe solar cell production growing the fastest. In 2006, the global top 15 solar cell manufacturers, only the top 13 of the First Solar is designed to produce cadmium telluride thin film solar cell business. The company is headquartered in Arizona, the current thin-film battery products in short supply, orders scheduled to after 2010; its stock in a year and a half up nearly 10 times, the United States enjoy the highest market valuation of the PV Unit.

First Solar gross margin above 50%, however, such a high gross margin due to the company mastered the core of cadmium telluride thin film technology, mostly to design their equipment, technology has developed, so the cost is much lower. From the cost breakdown also can verify this, although First Solar equipment depreciation for 5 years, compared with the other production Applied Materials AMAT U.S. 7 years shorter, but still higher than the unit cost of depreciation of amorphous silicon production line AMAT more than 20% lower than the AMAT of the laminated product line is 40% or more.

"First Solar thin film manufacturer for the global set a good benchmark, but it is not stunning, general business indicators easily able to match the." State Securities analyst Zhang Shuai said the new energy industry.

The coexistence of a huge hidden spaces

Experts believe that compared with the crystalline silicon cells, thin film cells is much greater potential for cost reduction, mainly due to thin film battery technology are advancing rapidly. According to "Photon" forecast, the average price of polysilicon components from the end of 2007 $ 3.92 / W in 2012 dropped to $ 2.08 / W, the average price of thin-film batteries from the current $ 2.65 / W down to 1.11 U.S. dollars / W, obvious advantages in comparison with crystalline silicon.

The decline in the use of cost, the industry estimates that by 2010 thin film solar cells will develop into a better production, market share will increase to about 12% -20% more than the total output of up to 1GW.

"Thin-film solar capacity may be the next to reach 20% of the entire solar industry, now only 7.6%, showing that among the space." Zhe Jiang Huarui Investment Management Limited Investment Manager Zhang Bin Description: thin film solar is to do, To improve performance, there are many physical methods, such as ion beam method of nanocrystalline silicon films this process, only a business in foreign countries are doing, there is no country. If the domestic enterprises in these methods above can be improved, will be very promising.

As Zhang Bin said, domestic enterprises are still technically there is a big gap. With crystalline silicon cells are very different, widely used in manufacturing thin-film battery technologies such as vacuum coating, more like the semiconductor industry, the technology directly affects the level of product yield, indirectly affect the profitability of the enterprise, which is from the major LCD Plant, IC manufacturers a huge difference in profitability can be seen by; Secondly, the thin film battery industry is a technology innovation and development of the industry, and some process route is not mature, therefore need to continue to improve from the technology point of view, thin film batteries manufacturers more than the crystalline silicon cells manufacturers need strong R & D and technical team.

In addition, thin-film battery technology development time is shorter, does not form a common technology and common equipment, the current large-size thin-film battery devices offers a turnkey project is mainly the U.S. Applied Materials (AMAT), Switzerland, Oerlikon, and three of Japan's ULVAC . Depreciation is one of the major cost thin film cells, based on current market price, with the capacity of battery production line of thin film crystalline silicon prices are 6-10 times, and in the supply of major raw materials, are international giants monopoly current high price and no protection.

The main raw materials, thin film batteries include glass (conductive glass and other glass), EVA, target, and gas. Thin film batteries on the conductive glass higher, the weaker the domestic manufacturers, the market mainly from Japan and the United States AFG divided NSG. With the outbreak of the domestic film production, tight supply is likely to occur in the pattern. Target current domestic supply is still dominated by international companies, Heraeus is the largest supplier in the domestic market share of over 60%. In addition, there is no domestic production of silane, and the limited expansion of major international manufacturers, in addition to the high demand for LCD and other silane supply side is still tight, prices remain high does not exclude the possibility to continue to rise.

Of course, from another perspective, the domestic enterprises if they can break through the bottleneck of these developments, the natural will have a strong competitive edge. Crystal silicon solar energy in the current situation of high prices, the thin film solar cells ushered in a good development opportunities, market demand for increasingly strong. But if the future price of silicon crystal solar sharp decline, thin film solar cell products in the market demand may be affected. Experts advise investors to be noted that the market risk.

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28.09.2010. u 10:32 • 0 Komentara • Print • #

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