As the general structural composition of solar panels, what are the requirements for glass, solar panels, back panels, EVA, etc.?

    The function of tempered glass is to protect the main body of power generation (such as batteries), and the selection of light transmission is required. First, the light transmittance must be high, generally above 91%; the second is ultra-white tempered treatment.

    EVA is used to bond and fixes the tempered glass and the main body of power generation (such as battery), the quality of the transparent EVA material directly affects the life of the module, and the EVA exposed to the air is easy to age and turn yellow, which affects the light transmittance of the module. In addition to the quality of the EVA itself, the lamination process of the module manufacturers is also very influential. For example, the adhesion of EVA is not up to standard, and the bonding strength of EVA to tempered glass and backplane is not enough, which will cause premature aging of EVA to affect component life.

    The main function of the cell is to generate electricity. The mainstream in the power generation market is the crystalline silicon solar cell and the thin-film solar cell, both of which have their own advantages and disadvantages. In crystalline silicon solar cells, the equipment cost is relatively low, but the consumption and cell cost are high, but the photoelectric conversion efficiency is also high, and it is more suitable to generate electricity in outdoor sunlight; thin film solar cells, relatively high equipment cost, but consumption and battery The cost is very low, but the photoelectric conversion efficiency is more than half that of crystalline silicon cells, but the low-light effect is very good, and it can also generate electricity under ordinary light, such as solar cells on calculators.

   The backplane is sealed, insulated, and waterproof. Generally, TPT, TPE, and other materials must be resistant to aging. Most component manufacturers have a 25-year warranty. Tempered glass and aluminum alloy are generally no problem. The key is whether the backplane and silicone can meet the Require.