Do you know some basic knowledge about solar panels?

Basic knowledge about solar panels

Direct current refers to a current that has a constant direction (DC for short), and alternating current refers to a current that changes periodically in magnitude and direction (AC for short). Alternating current has different waveforms, the most common of which is sine waveform.

Basic components—-solar cells

① Monocrystalline: Most of the monocrystalline cells have rounded corners of 125*125mm, with dark blue surface and high color purity. They appear black after being laminated with glass. The conversion efficiency is slightly higher than polycrystalline, more than 15%, which accounts for the total number of cells. About 30% of output;

②Polycrystalline: Polycrystalline cells are mostly 156*156mm square, with light blue surface and low color purity. They appear blue after being laminated with glass. The conversion efficiency is currently about 14% or more, which accounts for 1% of the total cell output. About 70%;

By assembling the above-mentioned solar cells, an important component—solar panel—is obtained. The function of the solar panel is to convert solar energy into electrical energy. Solar panels can be divided into many types

Solar panel type：

①Monocrystalline solar panels： The photoelectric conversion efficiency of monocrystalline silicon solar cells is about 15%, with the highest reaching 24%. This is the highest photoelectric conversion efficiency among all types of solar cells, but the production cost is so high that it cannot be widely used in large quantities. to use.

②Polycrystalline solar panels：The process used to make polysilicon is simpler and less expensive. Compared with single crystal, the amount of waste silicon is smaller. Polycrystalline solar panels tend to have slightly lower heat resistance than monocrystalline solar panels.

③Flexible solar panels：Flexible solar panels have the advantages of light weight, strong portability, and easy installation. They are very suitable for outdoor, mobile applications, and curved surface design scenarios. Its flexible material can be used on curved and shaped surfaces, providing designers and architects with more freedom and creativity.

④Folding solar panels：The principle of folding panels is based on the working principle of solar cells. Its advantages lie in its flexibility and portability, which can adapt to different usage scenarios and provide users with portable power solutions.

⑤ Epoxy solar panels：The material cost of epoxy solar panels is low, suitable for packaging of low-power solar panels, relatively light, and easy to install and move. But it is sensitive to temperature and has an average lifespan of 1-2 years. The epoxy resin glue on the surface is prone to yellowing, which affects the light transmittance and thus the conversion efficiency of the solar panel.