Solar photovoltaic power station is a monocrystalline or polycrystalline?

In the process of photovoltaic power generation is always asked a question: what single crystal is good? Or polycrystalline? Because customers are facing professional pv installer and user, I put this question into: if a photovoltaic (pv), my situation is suitable for single crystal

in the process of photovoltaic power generation, people would always ask a question: single crystal? Polycrystalline better? Because I'm in the face of customers are professional photovoltaic installation personnel and users, I put into this problem: if I installed a photovoltaic (pv), my situation is suitable for single crystal? Single crystal? I think it is more appropriate. Which one of the two better depends mainly on the following points: first, which is the most effective? 1. Photoelectric conversion efficiency. Monocrystalline silicon modules of photoelectric conversion rate is relatively high. At present, a line of monocrystalline silicon pv modules on the market of the photoelectric conversion efficiency is about 18%. In 2017, the single crystal solar cell will be 23. 45% of the world's high conversion efficiency, laboratory data will reach 26%. 2. The attenuation rate. Monocrystalline silicon components and polycrystalline silicon components in the same environment at the same time after use, the attenuation of monocrystalline silicon components is more important than the attenuation of polycrystalline silicon components. This means that after a 10 - The use of 20 years, monocrystalline silicon components of photoelectric conversion efficiency higher than that of polycrystalline silicon components. 3. Under the weak light of photoelectric conversion efficiency. Under the weak light environment, monocrystalline silicon components of photoelectric conversion efficiency is higher than that of polycrystalline silicon components. The second, which is more practical? 1. The price. Polysilicon components development has a long history, relatively mature technology, low price than monocrystalline silicon components. 2. Cost performance. Based on the above on the photoelectric conversion efficiency, attenuation, the factors of price comparison, different people for components monocrystalline silicon and polycrystalline silicon components price have different opinions. 3. Discuss details. The third, which lower cost? The cost of single crystal slightly polycrystalline. Different manufacturers have different cost. The market price is 5 cents to 10 cents higher than 1 watt. Four, which use area is high? The use of single crystal area will be relatively high. Household polycrystal, for example, can install 5 kw system, and the same area of the single crystal can be installed 6 kw, utilization rate of the area of the single crystal is better. In addition. At present, the single crystal have higher conversion efficiency and better electrical performance. Polycrystalline products have high market share, wide application, has certain advantages in price, more cost advantages in power plant construction. How to choose the single crystal and polycrystalline is not the key, but the big factories have very different components and small factory. The service life of the photovoltaic power station for at least 25 years, so only choose large reliable brand long-term power generation and power plant life. Luoyang and sheng pv co. , LTD production of monocrystalline and polycrystalline solar panel products. The product quality conforms to the standard. Compared with similar products, the capacity is higher in the same area.