The application of solar photovoltaic systems is very extensive. Currently, solar energy has entered various sectors such as industry, commerce, agriculture, communication, household appliances, and public facilities. The application of solar power generation can be divided into several aspects: small-scale solar power plants for household use, large-scale grid connected power plants, integrated photovoltaic glass curtain walls for buildings, solar street lights, wind solar complementary street lights, wind solar complementary power supply systems, etc., for example: solar courtyard lights; Solar power generation user system; Especially the independent power supply system for villages can be used in remote areas, mountains, deserts, islands, and rural areas to save expensive transmission lines; There are also photovoltaic water pumps (for drinking water or irrigation); Communication power supply; Cathodic protection for oil pipelines; Power supply for optical fiber communication station; Seawater desalination system; Urban road signs; Highway signs, etc.

Solar photovoltaic systems generate electricity by utilizing the electronic properties of solar energy and semiconductor materials. Let's take a look at the main factors that affect the power generation of solar photovoltaic systems?

The utilization of solar energy mainly relies on the solar radiation that reaches the ground. Solar radiation can be divided into two types. One type is the light radiation emitted from the surface of a photosphere, which propagates light and heat in the form of electromagnetic waves, also known as electromagnetic wave radiation. This radiation is composed of visible and invisible light.

Another type is particle radiation, which is a particle flow composed of positively charged protons, roughly equal amounts of negatively charged electrons, and other particles. Particle radiation is usually weak and its energy is unstable. It is most intense during periods of solar maximum activity and has a certain impact on humans and the Earth's upper atmosphere. However, generally speaking, before it radiates to the Earth's surface, it gradually disappears on the long journey between the sun and the earth.

For this reason, solar radiation is mainly light radiation. Due to the presence of the atmosphere, the actual amount of solar radiation reaching the Earth's surface is influenced by various factors. Generally speaking, solar altitude, atmospheric quality, atmospheric transparency, geographic latitude, sunshine duration, and altitude are the main influencing factors.