The main uses of solar energy in life are: the use of solar cells to convert the energy contained in sunlight into electrical energy through photovoltaic conversion; the use of solar water heaters to use heat from sunlight to heat water; heat water and use the hot water to produce electricity.
Solar energy is a renewable energy source. It refers to the energy of thermal radiation from the sun and its main manifestation is often called solar rays. Nowadays, it is typically used to generate electricity or provide energy for water heaters. With the decline of fossil fuels, solar energy has become a significant part of human energy consumption and continues to grow.
There are two ways to use solar energy: photothermal conversion and photoconversionoelectric. Solar power generation is an emerging renewable energy source. Solar energy in a broad sense also includes wind energy, chemical energy, hydropower, etc. on earth.