Thin-film solar cell production line in 2008 the increase in solar cell industry, a notable feature. Although the thin-film solar cells have already appeared, but because of photoelectric conversion efficiency is low, the attenuation rate (light-induced decline rate) high and so on, in previous years did not attract enough attention to the industry, market share is very low. With the continuous advancement of technology, photoelectric conversion efficiency is rapidly increasing, now more than two years ago was improved by approximately 30% -40%, although the crystal is still a big gap compared to silicon cells, but less use of materials, process simple, low energy consumption, the cost has certain advantages and is increasingly being accepted by the industry. So the past three years, thin-film solar cell industry have developed rapidly in 2007, the market share of thin-film solar cells of 8% growth from the previous year to 12%, while the 2008 is said to have reached 15% -20%. Experts predict that thin-film solar cell market share in the future there will be large-scale promotion, it will be possible with crystalline silicon cells will compete. NanoMarkets Forecast: thin-film solar cells generating capacity by 2015 will reach 26GW, sales of more than 20 billion U.S. dollars, solar cells generate electricity for more than half will come from the thin-film solar cells.
The shortage of silicon thin-film solar cells boost the development of one of the main driving force, is well known that in the first half of 2008 had a serious shortage of silicon feedstock to manufacturers of crystalline silicon cells are without rice or embarrassing situations. The thin-film solar cells is to use the basic technology PECVD (plasma chemical weather deposition) technology, amorphous silicon or microcrystalline silicon thin film deposition, the substrate is inexpensive glass or stainless steel materials, the current material advantage. In addition, the more attractive reasons for concern to the industry or the cost of power generation thin-film solar cells is relatively low, due to crystalline silicon solar cell industry chain, each link complex process, and greater energy consumption, although its photoelectric conversion efficiency is higher but the In general, the high cost of power generation or so, so this as a constraint to solar power grid, one of the main barrier. The thin-film solar cells simple process, lower production costs, is considered the most likely to achieve cost of electricity tariffs closer to the Internet technology.
China, as major producers of solar cells, one of thin-film solar cell manufacturers have begun to rapidly increase in recent years, the original only in Harbin Crolla, Shenzhen Yu-Kang 1MW single-junction a-Si cell production line, after the increase in Fujian Jun Shi energy, Tianjin can be Bengbu Pollock and other thin-film battery of more than 20 manufacturers, size from a few megawatts to tens of megawatts, the product sizes up to several square meters square meters, and increases and a-Si/a- Si laminated batteries, stable effective rate of 5% -6%, and enter the power-based application stage, there are a number of enterprises plan to scale up to hundreds of megawatts. Originally involved in the production of crystalline silicon solar cell manufacturers have also started to increase thin film product line, such as representatives of the industry companies involved in silicon-based Suntech, have begun to thin-film solar cell production.
With the continuous development of technology, thin-film photovoltaic conversion efficiency of solar cells are also rising, and some technology has now reached 10%, and the crystalline silicon photoelectric conversion efficiency of the battery getting closer and closer, and the other key areas — - decay rate also improved, new technology makes use of thin-film solar cells significantly longer useful life.
Despite these technical advances in thin-film solar cells illuminated the development prospects of industrial development, but there are still two practical problems, one is the high cost of production equipment, such as the 25MW amorphous silicon thin-film battery production line, sold at 300 million yuan ~ 400 million between RMB, while the 25MW crystalline silicon solar cell production line equipment costs only 40 million yuan to 5,000 yuan, the high cost of the equipment increases the risk of corporate profits. Another is the rapid advancement of thin-film technology, the upgrading of production equipment very quickly, the battery manufacturers difficult to adapt to changing technology and markets. So want to enter the ranks of thin-film solar cell manufacturers, enterprises must take into account these issues.
From the perspective of industry chain, China’s thin-film solar cell industry is not perfect. Although the thin-film solar cells have been a lot of bullish domestic enterprises to solve the problem of insufficient raw materials, but the domestic production line equipment manufacturing technology at present backward, almost all of the necessary reliance on imported production lines, equipment, high prices and profits were by and large upstream firm eating.
Is technically the domestic film industry is just getting started, faced with staff shortages and technical problems weak. Therefore, the thin-film solar cell business to be introduced with the relevant training in talent from top to bottom great efforts.
From the current point of view, a moderate development of thin-film solar cell industry is conducive to the development of domestic solar energy industry as a whole, we should be concerned about the progress of the various solar technologies to form a crystalline silicon thin-film batteries with a wide range of patterns is necessary, just not enough to crystalline silicon solar cells respond to complex market demands. From the market, customers are increasingly concerned about the cost of the product, crystalline silicon manufacturers profit space will become smaller and smaller. And thin-film solar cell industry pollution is relatively small, is conducive to environmental protection, in some applications, such as building-integrated photovoltaic, large-scale low-cost power plants, solar lighting, etc. have certain advantages.
Thin-film solar cell production lines to increase domestic solar energy industry make up for deficiencies in a timely manner to meet some of the market demand, but over-exaggerated the prospects for their investment would be unwise, and should regulate the development of the industry to avoid like the silicon solar cell industry, the phenomenon of blind investment .
dell 6y270 battery,dell 75uyf battery,dell c1295 battery,dell gd761 battery,dell kd476 battery,dell td347 battery,dell u4873 battery,dell d5318 battery,dell g5266 battery,dell hd438 battery,dell kd186 battery,dell y9943 battery,dell fk890 battery,dell gk479 battery