How to choose good quality solar photovoltaic modules?

Power station is the most important part of the front is solar battery components, also known as photovoltaic panels, the panels. Its quality is directly affects the work efficiency of the system and the service life of the layman how to discern the stand or fall of photovoltaic modules?

plant front end is the most important components of the solar battery components, also known as photovoltaic panels and panels. Its quality will directly affect the work efficiency and service life of the system. Dilettante how to distinguish between good and bad pv modules? At present, solar photovoltaic power generation is not only widely used in the city, and also not rare in rural areas. As more and more farmers to build power plants, the quality of the power station has become a problem concerned by many of the owners. For building photovoltaic power station users in rural areas, they do not know the quality of the equipment, let alone a photovoltaic system of professional and technical knowledge. Power station front solar cell components, is the most important parts of is also known as photovoltaic panels and panels. Its quality is directly influence the work efficiency and service life of the system. Dilettante how to distinguish the stand or fall of panels? You need to 'five' of the necessary skills. Look at those businessmen. Look at the components suppliers. See if it is not the mainstream brand of the industry, the Ministry of Industry and Information Technology released access enterprise, there are 244 companies in five batches. As the saying goes, 'good under the tree enjoys the cool air, big brand parts quality assurance and after-sales service guarantee. Second, look at the welding process. If there is a leak check the battery slice series welding. This can see from appearance directly. Look at the quality of the back pressure. Whether to have uneven pressure, or air bubbles, wrinkles, and so on. It is not difficult to find bubbles and wrinkles, you can see them in the sun. Look at the quality of the boundary. Regardless of whether it is strict rectangle, error is too big. Fifth, look at the conversion rate. High conversion rate is the guarantee of a stable income! The conversion efficiency is not obvious on the surface, need the component parameter is used in the comparison. In 60 common polycrystalline silicon photovoltaic modules, for example: 250 watts photovoltaic conversion efficiency of 15 components. 4%; 255 watts photovoltaic conversion efficiency of 15 components. 7%. 260 watts photovoltaic modules of conversion efficiency is 16%; 265 watts conversion efficiency of photovoltaic modules as 16. 3%. 270 watts conversion efficiency of photovoltaic modules as 16. 6%; If a company as a brand of polysilicon 60 p photovoltaic panels conversion rate over 20%, ha ha! Must be a fake! ！ Component is an important part of photovoltaic power station. Once appear problem, ordinary people use money to build the photovoltaic power plants will not be able to guarantee the power, let alone revenues. Therefore, whether in the cities or in rural areas, the user should be taught to identify parts quality and close the first power station.