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Solar Panels Design Efficiency Improvement

Jun 01, 2017

Solar Panels Design in the crystalline silicon battery developed on the basis of an important solar cells, compared to crystalline silicon cells, its advantages are mainly reflected in the material consumption, low energy consumption, the production of components can be completed in a workshop and other manufacturing Cost advantages, as well as flexible film prepared on the thin film battery with a flexible, lightweight, high power generation, low light performance, high temperature performance. Compared with the technology has long been mature and occupy the mainstream market position of crystalline silicon cells, its disadvantages are mainly reflected in the industrialization efficiency and photoelectric conversion efficiency is not high enough, and the efficiency of the technical difficulty is greater.

Thin-film solar cells in accordance with the use of different raw materials and technology has entered the third generation, the first generation is silicon-based thin-film batteries, the second generation is the compound semiconductor thin-film batteries, the third generation of new materials and new technology batteries. Among them, the third generation of batteries is still in the experimental development stage, the market share is very low, the current industrialization technology is more mature battery is the first generation and the second generation of amorphous silicon thin film batteries, cadmium telluride thin film batteries, copper indium Gallium selenium thin film batteries, gallium arsenide thin film batteries. Among them, amorphous silicon battery technology developed earlier, but the photoelectric conversion laboratory efficiency is about 13.4%, and the cost of a short period of time difficult to significantly decline; copper indium gallium selenium to low cost, high efficiency, Has a broad market prospects; cadmium telluride laboratory photoelectric conversion rate of 28%, the fastest commercialization process, but the cadmium material with environmental hazards, the development of certain restrictions; gallium arsenide battery with ultra-light, ultra-thin, flexible But the production cost is high and the low efficiency of the film growth technology limits its market competitiveness, is mainly used in the field of space.

A) market size

Driven by downstream applications, Solar Panels Design potential market is huge. From the stage of development, the global thin-film solar cells developed rapidly in 2007-2009, and began to become a hot spot in the field of solar cells. As of 2009, the proportion of thin-film batteries slowed down, and the market share was about 20% 13%; 2012-2015, with the crystalline silicon solar energy costs decline fast, and the commercialization of thin-film battery conversion efficiency as a whole is not as crystalline silicon, resulting in thin-film solar cells accounted for solar cell market share remained at around 10%. But with the thin film battery conversion efficiency continues to break, and thin film and crystalline silicon has its own market application focus, thin film solar cell potential market is huge. Thin film solar energy technology has the advantages of thinning, flexible, easy and building combined with less materials, simple process and low energy consumption. It can be widely used in thin film power generation (BIPV), household power generation, automobile application, electronic product And commercial unmanned aerial vehicles and other fields. According to China's "power development" thirteen five "plan", "thirteen five" during the distribution of China's photovoltaic installed capacity at least nine times higher than the Solar Panels Design compared to crystalline silicon cells are more suitable for roof and photovoltaic buildings And other distributed photovoltaic construction, Solar Panels Design will also become the mainstream of the future of solar cells, and is expected to large-scale application in the Chinese market.

(B) technical trends

Thin-film batteries are seen as the future direction of photovoltaic power generation. At present, crystalline silicon in the global photovoltaic industry occupies a strong dominant position, but in the increasingly competitive power wholesale market, solar power costs must continue to decline, and crystalline silicon technology breakthrough road has become increasingly difficult to go. Compared with crystalline silicon, thin film technology is in the glass, plastic or metal substrate deposition of one or more layers of thin photovoltaic materials, this process can reduce the use of the system materials, reduce manufacturing costs, with the technology to further breakthrough , Thin film technology is expected to become the most likely way to achieve significant reduction in solar energy costs. In December 2015, the Ministry of Industry and Information Technology published the "Industry Key Common Technology Development Guide (2015)", the thin film battery production technology was prioritized the development of key common technologies. More than 40 countries in the world are studying the next generation of low-cost, high-efficiency thin-film solar cells, solar thin-film power generation technology is becoming a new energy alternative to traditional energy key technologies.