The radiation of photovoltaic solar power generation is almost negligible, and its radiation amount is not as large as that of sunlight.
Solar energy generally refers to the radiant energy of sunlight, which is generally used to generate electricity in modern times.
About one billionth of the radiant energy released by the high-temperature nuclear fusion reaction inside the sun reaches the Earth's atmosphere. It has been the source of light and heat on earth since the formation of living beings. On earth, heat provided by the sun was mainly used. Living with light, humans have known how to use sunlight to dry things since ancient times. However, with the reduction of fossil fuels, they are interested in developing solar energy further.
There are two ways to use energysolar energy: passive use (photothermal conversion) and photoelectric conversion. Solar energy is an emerging renewable energy source.
Solar energy in the broad sense is the source of many energies on earth, such as wind energy, chemical energy, potential energy of water, etc. Solar energy is generated by the fusion of internal hydrogen atoms to release enormous nuclear energy, which is the radiant energy of the sun.
Currently, mankind's direct use of solar energy is still in its infancy, mainly including solar heat collection, solar water heating systems, solar greenhouses, solar power generation, wireless solar monitoring and other methods.