Eva Discoloration Solar Panels

We ll get to that.

Eva discoloration solar panels.

Acetic acid and other volatile organic components are also produced from the. Solar panel discoloration solar panel blemishes. Browning in the modules happen when certain additives used to prevent browning and enhance uv tolerance start to disappear after losing strength against uv rays. Essentially an acetic acid formation is the problem but not too blame.

Not my job you had one job. Discoloration itself may not be directly related to power performance of pv modules. Eva or ethylene vinyl acetate is used as an encapsulant in crystalline silicon pv modules. Eva browning is defined as a change in color of the eva film.

When a low quality eva is used the structure of the eva is altered when exposed to heat and uv radiation. There are two main. However discolored eva encapsulant is reported to cause a loss of light transmission to the solar cells leading to loss in power production by up to 0 5 a year by average or up to 1 a year in subtropical climates and this loss can be as high as 10 a year in case of mirror concentrated pv systems in desert conditions. As a result the eva starts turning to a yellow or brown colour.

First let s talk about what solar panel discoloration is and why it occurs.