Solar power generation is already the main force of clean energy. It is mainly divided into solar thermal power generation and solar light power generation. Thermal power generation requires high geographical characteristics, while photovoltaic power generation can make better use of dispersed roofs for power generation.

　　Photovoltaic power generation systems generally consist of three parts: photovoltaic panels, controllers and inverters. The photovoltaic panel is the core component. The direct current generated by the sunlight on the photovoltaic panel is converted into alternating current through the control system and inverter, and then connected to the equipment that meets the grid billing standards to complete the on-line power generation process.

　　The power of a square meter photovoltaic panel is generally between 120 watts and 140 watts. The time it takes to generate 1 kilowatt-hour of electricity is 1000Wh ÷ 140W = 7.1 hours.

　　Assuming that the equivalent power generation time in this area is about 1,300 hours, the annual power generation time per square meter of photovoltaic power generation panels can be 1,300 hours ÷ 7.1 (hours/kWh) ≈ 183 kWh. If you install 25 square meters of photovoltaic panels on your own roof, you can generate 25 square meters*183 (kWh/square meter) ≈ 4577 kWh per year.

　　Lithium-ion battery (LIB) has become the main energy storage solution in modern social life. Among them, lithium iron phosphate batteries are a perfect replacement for lead-acid batteries, and they are the first choice for grid-connected peak shaving, off-grid energy storage, photovoltaic energy storage, UPS, data center and other industries.

　　Solar power generation system with lithium battery energy storage system is a very promising clean energy.