How to distinguish between monocrystalline and polycrystalline solar energy?

There are some differences in appearance and electrical properties between monocrystalline silicon and polycrystalline silicon batteries produced by solar street lamp manufacturers due to different pre-production processes. From the appearance, single crystal and polycrystalline are distinguished: the four corners of single crystal silicon battery are arc-shaped, and the surface has no pattern; The four corners of polysilicon battery are square corners, and the surface has patterns similar to ice flowers.

? monocrystal

? polycrystalline

For users, there is not much difference between monocrystalline silicon battery and polycrystalline silicon battery. Both monocrystalline silicon batteries and polycrystalline silicon batteries have good life and stability. Although the average conversion efficiency of monocrystalline silicon cells is about l% higher than that of polycrystalline silicon cells, because monocrystalline silicon solar cells can only be made into quasi-squares (the four corners are arcs), some areas cannot be filled when making solar cell modules, while polycrystalline silicon solar cells are square, so there is no such problem, so the efficiency of solar cell modules is similar. In addition, due to the different manufacturing processes of the two solar cell materials, the energy consumed in the manufacturing process of polycrystalline silicon solar cells is about 30% less than that of monocrystalline silicon solar cells, so the share of polycrystalline silicon solar cells in the total output of global solar cells is increasing, and the manufacturing cost will be much lower than that of monocrystalline silicon solar cells, so the use of polycrystalline silicon solar cells will be more energy-saving and environmentally friendly.