Monocrystalline solar panel. Monocrystalline solar panel is an assembly in which several monocrystalline silicon solar cells are assembled on a board in a certain way. The photoelectric conversion efficiency of monocrystalline silicon solar cells is about 15%, and the highest is 24%. This is the highest photoelectric conversion efficiency of all types of solar cells, but the production cost is so large that it cannot be widely and widely used. use. Since monocrystalline silicon is generally encapsulated with tempered glass and waterproof resin, it is sturdy and durable, with a service life of up to 15 years, and up to 25 years.