How to avoid buying solar photovoltaic modules are pit?

Important in photovoltaic power generation system is photovoltaic panels. 'The component is chosen by more than 23% efficiency in our house! 'You may hear such commitments, but the fact is that 23% efficiency is laboratory efficiency and actual efficiency of about 19% is the top water is tasted, the

photovoltaic power generation system is the most important thing in photovoltaic panels. 'we all module efficiency more than 23%. 'you may hear such commitment, but the fact is that 23% efficiency is efficiency of laboratory, and about 19% of the actual efficiency have been top of aquatic products. So, say how much the more effective components than how many watts. At present, the effective components is more than 300 watts. Other type of P, N and double component will increase accordingly some electricity, which can be priority. The market element reference price of 2. 2 yuan/watt. Say to the components, we will discuss stents and inverter. Scaffold materials and many types, common is galvanized steel, aluminum alloy stent is ok. , because the light is not easy to corrosion, prices also vary widely. Inverter is, in fact, however, need to compare with its ability to use, because from the conversion efficiency, first-line brand inverter are over 97%, difference is not big, not more than 3%, the meaning is not big. However, any malfunction with the machine, for manufacturers timely feedback and deal with the fault is particularly important. In this part, it is important to avoid blocking, because the block is a influence factors of big capacity, and many small power plant is caused by obstruction. Asylum, however, there are many factors, including fixed, and the possible hidden, such as plant and planning of high-rise buildings. The design of the power plant must consider many factors. For installing less than it is better to install more shelter. Can do a step more absolute. In engineering construction, some construction unit in order to save costs, will omit many steps, such as line to use PVC tube package, line without drainage processing, cement block quality too light. These could lead to hidden trouble to the power station in the future to run, it is necessary to nip in the bud, do the right thing to do. In addition to the above need to be aware of what time, the plant operation and maintenance is becoming more and more attention. After all, the plant will have to run more than 25 years, during this period, some equipment failure will occur inevitably. Enterprises can promise how long run ( Components for 10 years, inverter for 5 years) , in fact, how long can run? This standard is very important! In addition, the installation company usually pay attention to the operation and maintenance of equipment, not including the daily operation and maintenance, so the user cannot impose difficulty, also can't you learn to do some simple daily operation and maintenance, it is helpful for power generation.