Solar power is divided into solar thermal power generation and photovoltaic power generation. Generally speaking, solar power refers to solar photovoltaic power generation, referred to as "photovoltaic". Photovoltaic power generation is a technology that uses the photovoltaic effect of a semiconductor interface to convert light energy directly into electrical energy. The key element of this technology is solar cells. After the solar cells are encapsulated and protected in series, a large area solar cell module can be formed, and a photovoltaic power generation device can be formed by combining the power controller and other components.
Photovoltaic technology can be used anywhere power is needed, from spacecraft, down to home power, up to megawatts of power stations, to toys, and photovoltaic power is everywhere. The basic components of solar photovoltaic power generation are solar cells (sheets), monocrystalline silicon, polysilicon, amorphous silicon, and thin-film batteries.
Solar panels made up of one or more solar cells are called photovoltaic modules. Photovoltaic power generation products are mainly used for: first, providing power for non-electricity occasions; second, solar daily-use electronic products such as various types of solar chargers, solar street lights and other lamps; and third, grid-connected power generation, which is already large in developed countries. Area promotion implementation.
According to forecast, solar photovoltaic power generation will occupy an important seat in the world's energy consumption in the 21st century. It will not only replace part of conventional energy sources, but will also become the main body of energy supply in the world. It is estimated that by 2030, renewable energy will account for more than 30% of the total energy structure, and solar photovoltaic power generation will account for more than 10% of the world's total electricity supply; by 2040, renewable energy will account for the total More than 50% of energy consumption, solar photovoltaic power generation will account for more than 20% of total electricity; by the end of the 21st century, renewable energy will account for more than 80% of the energy structure, solar power will account for more than 60%. These figures are sufficient to show the development prospects of the solar photovoltaic industry and its important strategic position in the energy field.
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