Solar controller - What are the advantages and disadvantages of the commonly used solar panels

Solar panels according to the classification of materials, mainly can be divided into the following categories: monocrystalline silicon solar panel, polycrystalline silicon solar panels and amorphous silicon solar panels and solar panels diverse compounds, including multiple compound solar panel is divided into: cadmium sulphide solar panels, gallium arsenide solar panels, copper indium selenium solar panels. At present, the crystalline silicon materials ( Including polycrystalline and monocrystalline silicon) Is the main photovoltaic material, its market share of over 90%, and in the future a long time still is the mainstream of the solar cell material. So, we'll explain emphatically monocrystalline silicon solar panel, polycrystalline silicon solar panels and amorphous silicon solar panels. The photoelectric conversion efficiency of monocrystalline silicon solar panels is approximately 15%, the highest of 24%, this is all kinds of solar panels in the photoelectric conversion efficiency is highest, but the production cost is very big, so that it can't be extensive and widespread use. Due to the commonly used single crystal silicon and waterproof resin toughened glass encapsulation, so its durable, generally can amount to 15 years, the service life of up to 25 years. The making craft of polycrystalline silicon solar panels with monocrystalline silicon solar panels is similar, but the photoelectric conversion efficiency of polycrystalline silicon solar panels to reduce a lot, the photoelectric conversion efficiency is about 12% less? ( On July 1, 2004, Japan's sharp market efficiency in 14. 8% of the world's highest efficiency of polycrystalline silicon solar panels) 。 In terms of production cost is cheaper than monocrystalline silicon solar panels, material is simple, save power consumption, the total production cost is low, so get a lot of development. In addition, the service life of the polycrystalline silicon solar panels is shorter than monocrystalline silicon solar panels. As for the price performance ratio, monocrystalline silicon solar panels is slightly better. Amorphous silicon solar panels is a new type of thin-film solar panels in 1976, it has to do with the production methods of monocrystalline silicon and polycrystalline silicon solar panels, a completely different process greatly simplified, little silicon material consumption, lower power consumption, its main advantage is in low light conditions can also generate electricity. But the main problems of amorphous silicon solar panels is the photoelectric conversion efficiency is low, the international advanced level of 10% or so, and is not stable, with the extension of time, the attenuation of conversion efficiency.