Defective Solar Panel Delamination

Snail trails have multiple causes but one cause can be attributed to the use of defective front metallization silver paste in the solar cell manufacturing process. High temperatures low temperatures exposure to the sun and the wind are all physical stresses that can cause cracking and corrosion that lead to failures. Snail trail is a discolouration of the panel which usually only manifests itself after a couple of years of production.

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