Polycrystalline silicon solar panel mostly used in the market is aggregate structure of containing mass of monocrystalline granules. It is processed by using polycrystalline block material with electric resistance of 100~300Ω. It will be fabricated to square for easily cutting into solar sheet.
Photo-electro transition rate of polycrystalline silicon solar panel is about 12% that is a little lower than monocrystalline silicon solar panel, but it is fabricated simply, energy saving and total manufacturing cost is low. So, it is widely used. With development of technology and workmanship, present photo-electro transition rate also can be around 18%.