Photovoltaic panels are also our common solar panels. Yes, each photovoltaic panel is actually like a battery, but it is the sun that charges them, so as long as there is sunlight, it will generate electricity at any time.
Photovoltaic panels are devices that directly or indirectly convert solar radiation into electrical energy through the photoelectric effect or photochemical effect by absorbing sunlight. There are certain limitations to the use of the ground. Compared with ordinary batteries and rechargeable batteries, solar cells are more energy-saving and environmentally friendly green products.
The service life of photovoltaic panels is determined by the materials of cells, tempered glass, EVA, TPT, etc. Generally, the service life of panels made by manufacturers who use better materials can reach 25 years, but with the impact of the environment, the life of photovoltaic panels Materials age over time. Under normal circumstances, the power will be attenuated by 30% after 20 years of use, and by 70% after 25 years of use.
The frame of the photovoltaic panel uses an aluminum alloy frame, which not only ensures its hardness, but also ensures that it will not rust and rot, and is relatively lighter in weight, ensuring its longer service life. On the surface of the photovoltaic panel is a tempered glass with extremely high light transmittance. The more transparent the glass, the higher the power generation efficiency. Therefore, the photovoltaic panel has high requirements for the light transmittance of the tempered glass.
The back of the battery is the back plate, which plays the role of sealing and protecting the battery. The use of waterproof silicone to seal the module with the aluminum alloy frame can effectively play the role of waterproof and air isolation, so that the battery is durable and will not age. There is a junction box in the middle and upper part of the backplane, and it is the two wires separated from the junction box that continuously transport the power from the battery.