Crystalline silicon and thin-film race

Polaris solar PV net news: China poly silicon double of United States and South Korea, United States double reverse for China’s polysilicon solar cell investigation, crystalline silicon solar cell industry gave people a chaos of strife. Compared to the Han Li Hejun in Africa “cursory enclosure” throwing money to invest and build factories of heroism, Hina group by acquiring Germany suolibiya, and United States Mi Yasuo and global solar company and a series of capital operation, has got through thin-film solar power the whole industry chain, from upstream of photovoltaic cells and modules production line equipment, to the middle cell, module production and then to thin film solar power generation and raw materials. Li Hejun was pronouncements: thin-film technology in the coming decade will replace the amorphous silicon PV cells, whether people do not produce an illusion – crystalline silicon solar cells will be replaced by thin film solar cell, which prompted a on thin film solar cells and amorphous silicon solar cell who was discussing the future of PV.

In the field of solar PV, thin film and crystalline silicon race, seemed to be an endless topic. Supporters of each have their arguments.

“Crystalline silicon is still the mainstream”

GCL-Shu Hua solar leaders Summit held recently, the Chief Executive said that after more than a decade of development, crystalline silicon solar conversion efficiency improvement, now has more than 23%. Thin-film technologies are also growing, with conversion efficiency and solve life problems, also will have its application market, particularly in building integration such locally specific market, thin film technology also has its advantages. But with further development of future silicon technology, crystalline silicon solar conversion efficiency can even reach more than 25%. From comprehensive price point of view, can be applied to the commercialization of photovoltaic technology, is still going to be SI technology in the future. More than 50% technology uses amorphous silicon solar power technology.

“Likely will rise in the future to other technologies, such as solar thermal power generation and other applications of solar power generation technology, but in the near future, as well as a long period of time, grew up in technology, efficiency, cost, and affordable Internet access, as well as government subsidies, into millions of households market situation, SI routes still occupy the solar power mainstream.” Shu Hua thinks the advantages of amorphous silicon is already a fait accompli.

Chief Technology Officer of Yingli Song Dengyuan highlighted problem of thin film solar cell cost and material support. He said that in fact, in addition to crystalline silicon and thin-film solar power generation, there are other techniques, such as concentrating battery and perovskite-type technology. But if you want to have better performance in the market, there are very important red line is cost, because “is, in essence, the cost of the photovoltaic industry as the first renewable energy technology”. He said that from the historical development of thin-film and crystalline silicon cells could mottoes. Prior to 2009, thin film solar cell developed rapidly, because Silicon is very expensive at that time. Market share in 2009, film was about 16%, SI 83%. Later SI return value, with prices from $ 400 return to $ 50, $ 30, $ 20. And conversion efficiency of Microcrystalline Silicon boost faster. Amorphous silicon technology development unit, cost reduction, reflected in the market is very obvious. 5 years after 2009, thin film solar cell market share shrinking, SI share more and more. 2013 statistical data shows that thin-film batteries accounted for slightly more than 9%, SI make up close to a 91%, “c-SI is expected in 2014 the ratio will be increased to 92%, thin-film batteries down to 8%”.

“The most important material support for photovoltaic technology development.” In addition, the Song Dengyuan also suggested that the supply of raw material is a very important issue. 27.1% of crystalline silicon in the Earth’s crust and thin film solar cell materials used, such as chromium, indium, gallium, and selenium are very rare element in the Earth’s crust, especially of Indium. In accordance with the national program of solar PV scale, if the massive development of thin-film technology, material support is a problem.

Trina Gao jifan Chairman said in an interview, said, “there are companies that film alternative to crystalline silicon in the future, I can definitely say, crystalline silicon the mainstream 5-10 will not change in the future, thin-film batteries only when the supporting cast. Could’ve talked with several technical factors and cost factors, because it three of the most important of the photovoltaic industry: one is the higher conversion efficiency, and the other is highly reliable, three are low-cost. Thin-film and crystalline silicon now compared with conversion efficiency of crystalline Silicon Labs has more than 25% films have several kinds of thin film solar cells, Silicon, cadmium Telluride, Copper-Indium-Gallium-selenium, silicon-based thin film solar cell conversion efficiency of 15%, Copper-Indium-Gallium-selenium and peaked at 20% points a few, and there 5% difference compared to crystalline silicon. Line is the same, thin film silicon solar cells have now reached 20%, Copper-Indium-Gallium-selenium which belongs to the highest efficiency of thin film solar cell is shisidianji percent. Therefore, there is no doubt that crystalline silicon both in the laboratory and the production line, the efficiency of crystalline silicon 5% more than thin-film batteries. ”

Lihejunli last film

Recently a number where an SI photovoltaic companies speak a lot of films in the language of internal market policy is increasingly uncertain, prosperous merchant, but see PV resurgence of civil war artillery. Number of rounds in point to point, barely pushing is known as thin-film technology Hina. Hina’s annual report forecast that the share of crystalline silicon solar photovoltaic industry in 2018, below 60%, “other” (third-generation) technology in 2018 will be caught 8% PV market. Hans ‘ own words: “from 2012-2020, the rapid growth of the global market share of thin-film solar technology, pointed out a bright future for thin-film solar modules. “

“At the mention of crystal silicon PV everyone thought, but I believe that one day, not very far off, referring to solar power, you will see in the film on the clothes, home generation films, films on the car. “On a global scale, crystalline silicon solar cells is now the mainstream PV technology, and thin-film solar cells is in” conversion “at a disadvantage. Li Hejun was once again used the “fiercely” to show his vision for this film is good. Li Hejun has aspired to in the field of thin-film “ahead”. Chinese thin-film solar companies one after another over the past two years Germany Solibro, United States MiaSol é, GlobalSolarEnergy, and AltaDevices into their folds, and announced that its Copper-Indium-Gallium-selenium (CIGS) component production conversion rate has reached 15.7%, access to United States national renewable energy laboratory (NREL) certification the highest conversion rate of 20.5%. Gallium Arsenide (GaAs) single junction solar cell conversion 28.8%, dual-junction cell 30.8%, Hina group said, this is world record for the highest conversion rate of thin-film solar cell technology.

Hina by effective actions for their film “endorsements”: acquisition-related research and manufacturing companies, technology integration with independent property rights lead in crystal silicon solar module market “weakness” in a timely manner into the Han solar thin film solar module strategy firm and clear. Recently publicized by CCTV on the name, and other shows to create “film eco-industrial chain” determination.

Li Hejun has repeatedly stressed that the future lies in innovative applications of solar energy “move”, photovoltaic integration mainly refers to the film. Si no advantage, is a transitional product, thin films, and flexibility is the way of the future. Who want to thin film solar module can be sewn onto clothing, embedded in the backpack, humans would like green plants, like “chlorophyll”, the direct use of solar energy.

Film routes has been subject to a variety of questions, but to cooperate with Tesla in the field of electric vehicle charging stations, and may bring greater imagination. Hina as the first cooperation agreement with the Tesla suppliers of charging station in China, will use thin-film flexible photovoltaic systems for the construction of Tesla’s first two charging stations in Beijing and Shanghai’s Jiading automobile city’s first mega-construction of charging stations, and in future will also build seven Super charging station network.

“There are many technical courses in order to create the technical diversity, creating competition, so as to promote cost reduction. The key question is, what kind of technology will soon bring down the cost, by pouring each kW of PV modules into the system, come down the cost of electricity “. While current technology is very large, but what really industrialization can be accepted by the market, “the market performance is very clear to everybody.” Chief Technology Officer of Yingli Song Dengyuan summed up at the Summit.

Countries to cope with climate change and national cooperation Li junfeng, Director of the Center for strategic studies said, because recently there are many arguments for thin-film cells, amorphous silicon solar cell, PV industry in both of these technologies are booming technology has moved on, there is competition, there is progress, but are not mutually exclusive. Is true for any industry requires a courage to enter, it needs courage to quit.

Original title: crystalline silicon and thin-film race

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