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South Korea Han Hua New Energy (Hanwhasolarone) showed the first commercial size of solar panels made from the new silicon wafer manufacturing technology. In solar cells, these silicon waves are the most expensive components. This new technology is developed by Crystalsolar, startup in Santa Clara, California, and has a thickness of the wafer thickness in the conventional wafer 1/3.
This technique is wasteful in the manufacturing process than the traditional process, and greatly reduces the equipment required to make wafers, so there is a potential to reduce the cost of wafers by half. And the wafer accounts for 1/3 or even half of the manufacturing cost of the entire solar panel. Han Hua purchased a Crystalsolar shares worth $ 15 million and helped it push this technology to the market.
New technologies and cooperation between Han Hua and Crystalsolar can become a model of how traditional silicon solar cells can continue to cut. A few years ago, the prospects of solar panels per watts of manufacturing costs are still not marginal, such views make investors to pour money to other technologies that can replace silicon solar panels, such as films Solar battery. However, the current manufacturing cost of the solar panel has decreased to $ 1 per tile, which also leads to bankruptcy bankruptcy of many entrepreneurial companies engaged in thin film solar cells.
Crystal does not try to develop a new technique that can challenge silicon solar panels, but to develop new technologies that can be easily integrated into existing silicon battery board manufacturing. And it doesn't make a solar panel, but it works with Hanhua subordinate companies that have already manufactured relevant experience. Entrepreneurship generally lacks relevant experience related experience, many of which are failed because they can't reduce manufacturing costs.
General fabrication of silicon wafers in conventional solar cells include the following steps: First, high-purity silicon (polysilicon), then make polycrystalline silicon, and then carefully cooled to obtain single crystal silicon rods, then cut silicon rod Wafer. The whole process should be high-priced large equipment, and there are more than half of the expensive high-purity silicon waste. Early stages of traditional production process should extract pure silicon from a gas containing silicon and other elements.
Crystalsolar has developed a method to directly manufacture crystal silicon wafer flakes in this gas, removed, then melting, crystallizing, then cutting steps. The chip manufacturing industry is also using this type of process, but this version is much higher than the efficiency and speed. ChriseBerspacher, Chi Hua New Energy Company, said that this method does not only reduce the waste of silicon, but also removes the most expensive equipment required to make wafers, thereby reducing costs.
Ebe Shipei said that from Han Hua, it is necessary to develop similar techniques not only risk and take a few years. Therefore, the company decides to find an entrepreneurial company to get innovation. If you use this method, we don't have to select a technology.
He said that we can visit the technology developed by entrepreneurship and elect the best. This makes our actions more rapidly. Ebe Shipei said that Crystalsolar is still working hard to reduce costs, saying that reducing the cost of making wafers in the machine and adds the number of wafers they can produce.
He said that if Crystalsola's technology can continue to reach a new milestone, Hanhua can introduce commercial products produced using this technology in 2014.
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