Gain: The low attenuation rate contributes to a 3% increase in power generation.
As the attenuation rate of double-glass modules is about 0.2 percentage points lower than that of single-glass modules, the power output of double-glass modules will increase by 3% compared to conventional modules under the same power generation conditions.
Losses: Increased light transmission and 2% loss of power. As the EVA film is transparent, there is no white backside to reflect the light leakage between the cells, which makes the amount of light that produces the photoelectric effect in the cell lower due to higher light transmission, and the module will have at least 2% power loss.
The use of white EVA for the back side of the encapsulation material will appear white.
EVA overflow glue obscuring the cell, can not perfectly solve the problem of power loss.
In addition, the sealing method of the double-glazed modules will affect the function of the water resistances and the tolerance to wind pressure will be affected by the loss of the aluminum frame protection.