Solar thermal power generation is a new type of solar power generation. The solar power generation that we mentioned before generally refers to photovoltaic power generation. This is two different approaches.
There are two ways of solar power generation: thermal power generation and photovoltaic power generation. The operating principle and the scope of use of solar power are quite different. Solar thermal power generation is also called focused solar thermal power generation. Unlike photovoltaic power generation, it uses various physical means to gather direct solar light and generate high-temperature and high-pressure steam. Steam drives a steam turbine to generate electricity. According to the different heat collection methods, it can be divided into solar trough thermal power generation, solar tower thermal power generation, and solar disk thermal power generation.
The difference between solar thermal power generation and photovoltaic power generation
1. The principle and device of power generation are different. Thermal power generation is driven by a heat-collecting device to generate electricity from a steam turbine. It is a heat transfer method. The most important component is a heat collector or device. Photovoltaic power generation uses the photovoltaic effect of semiconductors to convert light energy directly into electrical energy. Solar panels, the basic components, are the means of electricity conversion.
2, the scope of use is not the same. The electricity generated by solar thermal power generation has a better match with traditional thermal power and hydropower and is suitable for large-scale development. In addition, thermal power generation is more suitable for areas with good lighting conditions due to higher lighting conditions. Photovoltaic power generation devices are relatively simple and require relatively low lighting. They are more suitable for miniaturization and are therefore more suitable for decentralized use.
3, in the specific application. Photovoltaic power generation has become industrialized, and the use of technology has become more mature and suitable for a wide range of applications. The thermal power generation is still mainly in the demonstration stage of scientific research, and the cost is also at a very high level. It takes time for large-scale application.
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