Solar energy is undoubtedly the largest renewable energy that can be developed on the earth. According to the different forms of solar radiation energy reaching the earth, the use of solar energy can be divided into two major categories: photovoltaic and thermal. What is the difference between photovoltaic power generation and solar thermal power generation?

Photovoltaic power generation is the use of solar cell technology, photons make electronic transitions, the formation of potential differences, light energy directly into electrical energy, generate direct current.

Solar thermal power generation is a technology that converts light energy into heat energy and then uses conventional thermal cycles to generate power. The solar thermal power generation generates the same AC power as the traditional thermal power generation, and has a better match with the traditional power generation method and the existing power grid, and can be accessed directly on the Internet.

The most important difference between the two lies in the difference in their respective energy storage methods. Energy storage plays an important role in compensating for the intermittent nature of solar power generation and for the ability of the grid to adjust peaks. As photovoltaic power is converted from light energy directly to electrical energy, its excess energy can only be stored in batteries. Its technical difficulty and cost are much higher than that of solar thermal power generation. Therefore, it is easy to store excess energy to achieve continuous and stable power generation and peaking power generation, which is one of the most important and obvious advantages of solar thermal power generation relative to photovoltaic power generation.

Photovoltaic and photovoltaic power generation have their own advantages and disadvantages, and have their own application areas. Photovoltaic power generation is relatively large, but photovoltaics are relatively small and suitable for families, residential communities, etc., including the combination with buildings. Therefore, the scope of application of the two is not exactly the same.

Photovoltaic power generation is mainly applied to distributed generation, and photothermal power generation is more used as centralized power generation. Both solar thermal and photovoltaic have their own advantages and prospects for development. There is no direct conflict between the two. In a place where solar power generation is well developed, there should be both a photovoltaic power generation system and a photovoltaic power generation system. Therefore, the two are complementary relationships in the long term. In the future, the two will jointly play the role of future energy consumption in the world.

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