There are two main ways to use solar energy to generate electricity: one is the light-heat-electric conversion method, and the other is the light-electric direct conversion method.

　　(1) Light-heat-dynamic-electric conversion method

　　Use the heat generated by solar radiation to generate electricity.

　　Generally, a solar collector converts the absorbed heat energy into high-temperature steam, and then drives a steam turbine to generate electricity. The former process is the light-heat conversion process; the latter process is the final conversion process of heat-motion and then into electricity.

　　The same as ordinary thermal power generation. The disadvantage of solar thermal power generation is its low efficiency and high cost. It is estimated that its investment is at least 5-10 times more expensive than ordinary thermal power plants.

　　(2) Optical-electric direct conversion method

　　This method uses the photoelectric effect to directly convert solar radiation energy into electrical energy.

　　The basic device of light-to-electricity conversion is solar photovoltaic panels, which are solar cells.

　　Solar cells are semiconductor photodiodes that can directly convert sunlight energy into electrical energy based on the photovoltaic effect.

　　When the sun shines on the photodiode, the photodiode will turn the sun's light energy into electrical energy to generate electric current. When many batteries are connected in series or in parallel, a square array of solar cells with relatively large output power can be formed.

　　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 is a promising new energy source with three major advantages: permanence, cleanliness and flexibility. More often it will be used with a lithium battery energy storage system.