The principle of a solar power plant is as follows:
1. A solar power plant is a device that uses the photoelectric effect of semiconductor materials to convert solar energy into electrical energy. .
2. Thanks to illumination, the more electrons generated in the interface layer, the higher the current.
3. The more light energy the interface layer receives, the larger the surface area of the interface layer battery and the greater the current generated in the solar power plant.
There are two ways to produce electricity in solar power plants. The work processes are:
1. The method of converting light, heat, dynamics and electricity generates electricity using thermal energy. generated by solar radiation. Generally, the absorbed thermal energy is converted into working fluid vapor by the solar collector, then the turbine steam is driven to produce electricity, like ordinary thermal power generation, the disadvantage of solar thermal power generation is its efficiency. is very low and the cost is high, and its investment is 5 times more expensive than ordinary thermal power plants, the advantage is environmental protection.
2. Direct conversion method of light and electricity. This method uses the photoelectric effect to directly convert solar radiation energy into electrical energy. The basic device for converting light into electricity is the solar cell. A solar cell is a device that directly converts solar energy into electrical energy through the photovoltaic effect. When the sun shines on the photodiode, the photodiode converts light energy from the sun into electrical energy, producing current.