The main factors affecting the power generation of solar photovoltaic systems

Solar photovoltaic systems are widely used, and currently, solar energy has entered 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., such as solar courtyard lights; Solar power generation user system; Especially for independent systems of village power supply, they can be used in remote areas, high 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 of oil pipelines; Power supply for fiber optic communication stations; 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 reaching the ground. Solar radiation can be divided into two types. One type is light radiation emitted from the surface of the photosphere, which is also called electromagnetic wave radiation because it propagates heat in the form of electromagnetic waves. This radiation is composed of visible and invisible light.

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