Solar photovoltaic cells (PV cells for short) are used to convert the sun's light energy directly into electricity. The ground photovoltaic system largely uses silicon solar cells based on silicon, which can be divided into monocrystalline silicon, polysilicon and amorphous silicon solar cells. The solar cell module is composed of high-efficiency crystalline silicon solar cells, ultra-white tempered glass, EVA film, transparent TPT backsheet and aluminum alloy frame. It has the characteristics of long service life, strong mechanical resistance to external force etc.