The main characteristics of raw materials for solar household power generation systems are as follows.
Battery cells: packaged with high-efficiency (16.5% or more) monocrystalline silicon solar cells to ensure sufficient power generation of the solar panels.
Glass: Made of low iron tempered suede glass (also known as white glass) with a thickness of 3.2mm, the transmittance reaches over 91% in the wavelength range of solar cell spectral response (320-1100nm), and it has a high reflectivity for infrared light greater than 1200 nm. This glass is also resistant to the radiation of solar ultraviolet light, and its transmittance does not decrease.
EVA: A high-quality EVA film layer with a thickness of 0.78mm, which is added with anti UV agents, antioxidants, and curing agents, is used as the sealing agent for solar cells and the connecting agent between glass and TPT. It has high light transmittance and anti-aging ability.
TPT: The back cover of the solar cell - the fluoroplastic film is white and reflects sunlight, which slightly improves the efficiency of the module. Due to its high infrared emissivity, it can also reduce the operating temperature of the module and improve its efficiency. Of course, this fluoroplastic film first meets the basic requirements of aging resistance, corrosion resistance, and non breathability required for solar cell packaging materials.
Frame: The aluminum alloy frame used has high strength and strong resistance to mechanical impact. It is also the most valuable part of household solar power generation. Its function is to convert the radiation ability of the sun into electrical energy, or send it to a battery for storage, or drive the load to work.