Lin Junsheng: CIGS thin film solar cell for short energy payback period

Polaris solar PV net news: throughout the entire photovoltaic industry, Copper-Indium-Gallium-selenium thin-film solar cells because of its low production costs, low light stable power generation capacity, electricity generation, energy recovery period is short, the advantages such as widely used, was widely rated as “the future of solar energy.”

Currently China in film solar of market needs is greater than Western, if Government can clear will has environmental, and flexible of, and application widely, variety advantage of film technology route determines for solar industry of development direction, and from funds, and technology, and market, field gives film PV industry to vigorously support, China of solar industry in global competition will be more with advantage, more can led global PV revolution of development.

Manz Asia Deputy General Manager Lin Junsheng

Reporter: Lin, Hello! With the Chinese Government in governance to increase the impact of energy conservation and environmental protection in China this year, and accelerate the pace of structural adjustment of China’s energy supply. “Energy recovery cycle” concept that was widely released in Europe starting in China itself to heat up. Your perceptions of the PV. Judging from the chain length, how would you rate the CIGS thin-film and crystalline silicon solar module Assembly energy payback period?

Lin Junsheng: in fact, the short cycle of energy recovery is the biggest advantage of CIGS thin-film solar, which has been widely known in around 2008, but because of the overall PV market heat large, amorphous silicon product prices are higher, even if time-consuming, energy-intensive production process, few companies would care about this issue. However, with crystalline silicon products prices fell sharply, double flames continue to burn in Europe and America, coupled with environmental protection, energy-saving awareness gradually on the rise, most solar energy experts have to realistic stress next time around and seriously examine crystalline silicon solar module manufacturing process of high pollution and high energy consumption, and so on.

Even the Silicon in recent years claimed a new technological breakthrough, but in General, Copper-Indium-Gallium-selenium remain crystalline silicon technology has about half of the energy payback period, which means that if Silicon take 20 months, the CIGS only take around 10 months. The reason is that Copper-Indium-Gallium-selenium component technology to master a high degree of production process is relatively streamlined, integrated circuit concept can directly on the absorbing layers deposited on glass substrates, which are only

Just in a workshop to complete, so the energy payback period from this point of view, absolutely superior Copper-Indium-Gallium-selenium crystals of Silicon.

Reporter: at present the domestic industry investors there is little understanding of the CIGS thin film industry. Can you tell us something about CIGS, as well as its future investment prospects and commercial prospects.

Lin Junsheng: in October 2013, Manz partner Germany Baden-Württemberg Centre for solar energy and hydrogen research (ZSW for short) broke the world record of Copper-Indium-Gallium-selenium laboratory efficiency and pushed up to 20.8%, a figure not only outsold the polysilicon 20.4% also suggests that the efficiency of CIGS in the actual production level is to go beyond Silicon. In case of not taking into account various advanced technology of polysilicon, the current average module efficiency of traditional polysilicon production is only about 15%, and Manz Copper-Indium-Gallium-selenium component has reached an average level of 14%, so in the next few years, CIGS is bound to catch up with the efficiency of polycrystalline silicon components. In addition, if combined with Copper-Indium-Gallium-selenium special low light and no shielding, CIGS are more suitable for generating electricity. In short, polycrystalline silicon can do, Copper-Indium-Gallium-selenium can do and do even better, but Silicon can’t do it, instead of Copper-Indium-Gallium-selenium specialty, BIPV is one example.

On commercialization prospects view, 2013 for China for is a turning point, while, due to Government of policy support, makes China became global maximum of PV market, 2014 years continued bullish, and Copper Indium Gallium se more is Ming set for support technology is one of; on the, as Copper Indium Gallium se component by needed material of production powers, China especially for development, and deep Copper Indium Gallium se technology.

Reporter: in your opinion, investment CIGS thin film solar cell manufacturing companies should have what kind of conditions? Investment cost-recovery cycle is how long it will be?

Lin Junsheng: first of all, present themselves in the field of photovoltaic companies, they will have a passion for new energy development, and look forward to serving the millions of households to create a better living environment. Current, China PV enterprise more focuses on Yu crystal silicon component of manufacturing, and these enterprise currently are suffered double anti-to effects, Copper Indium Gallium SE for they for, undoubtedly is best investment of new select; addition, on wants to across foot new energy of enterprise,, CIGS is most advanced of technology, and Manz as world only can provides CIGS AC key programme of equipment commercial, future more can will technology constantly to update and transfer to these enterprise. As long as the company has enough ambition and money for new energy, can the CIGS technology with roots in the Chinese market.

Investment payback period, in fact, depends on the size of the input may be, according to the results, more than 500 MW of investment projects, approximately four years costs can be recovered.

Reporter: we all know that countries in the “Thirteen-Five”, clarified the CIGS thin film solar cell development. Do you think CIGS thin-film industries in China’s energy transition and what role?

Lin Junsheng: long chain of crystalline silicon with high energy consumption and high pollution, which means burning more coal and make more electricity, and burning coal yields PM2.5 (less than or equal to 2.5 microns in diameter suspended particles known as fine particulate) one of the main reasons. Twelve-Five before the Chinese Government for PM2.5 problems have not been detailed specifications, thus PM2.5 cause significant economic losses to China in recent years, as well as harm on people’s health. I believe in Thirteen-Five plans, Copper-Indium-Gallium-selenium will be a very important development projects, the Chinese leadership was also bound to strict requirements specification, on the other hand, this is crystalline silicon PV industry a weapon with high pollution and high energy consumption. So I think the Copper-Indium-Gallium-Selenium is the locomotive of China’s energy transition, to lead the new energy into the wider development space.

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