Solar photovoltaic power generation will occupy an important position in the world energy consumption in the near future, which will not only replace some conventional energy sources, but also become the main body of the world energy supply. It is estimated that by 2030, the proportion of renewable energy in the total energy structure will exceed 30%, and the proportion of solar photovoltaic power generation in the world's total power supply will exceed10%; By 2040, renewable energy will account for more than 50% of the total energy consumption, and solar photovoltaic power generation will account for more than 20% of the total electricity; By the end of 2 1 century, renewable energy will account for more than 80% of the energy structure, and solar power generation will account for more than 60%. These figures are enough to illustrate the development prospect of solar photovoltaic industry and its important strategic position in the energy field.
Photovoltaic power generation is based on the principle of photovoltaic effect, which uses solar cells to directly convert solar energy into electric energy. Whether it is used independently or connected to the grid, the photovoltaic power generation system is mainly composed of solar panels (modules), controllers and inverters, mainly composed of electronic components, and does not involve mechanical parts.
Therefore, photovoltaic power generation equipment is extremely fine, reliable and stable, with long service life and simple installation and maintenance. Theoretically, photovoltaic power generation technology can be used in any situation that needs power supply, from spacecraft to home power supply, from megawatt power stations to toys, and photovoltaic power supply can be everywhere.