What is photovoltaic power generation technology?

Release date:

2023-06-02 18:04

The research on photovoltaic power generation technology has a history of over 100 years. This energy product has matured. China began researching solar cells in 1958 and successfully applied them to the Dongfanghong 2 satellite launched by China in 1971. Since 1973, solar cells have been used on the ground. In 2002, relevant national departments launched the "Power Transmission to Township Project" to install photovoltaic power stations in nearly 800 non electrified townships in seven western provinces and regions. This project has driven the rapid development of China's photovoltaic industry. As of the end of 2004, the cumulative installed capacity of solar cells in China has reached 65000 kilowatts.

Photovoltaic power generation is based on the principle of photovoltaic effect, using solar cells to directly convert solar energy into electrical energy. Whether used independently or connected to the grid for power generation, photovoltaic power generation systems mainly consist of three parts: solar panels (components), controllers, and inverters. They are mainly composed of electronic components and do not involve mechanical components. Therefore, photovoltaic power generation equipment is extremely refined, reliable, stable, and has a long lifespan, and is easy to install and maintain. In theory, photovoltaic power generation technology can be used in any situation that requires power, from spacecraft to household power sources, to megawatt level power plants, to toys, and photovoltaic power sources are everywhere. The basic components of solar photovoltaic power generation are solar cells (chips), including monocrystalline silicon, polycrystalline silicon, amorphous silicon, and copper indium gallium selenium thin film batteries.