Featured in The fertile solar crescent – 01-2018

Yellow spells trouble for backsheets

Backsheets: Some may argue that slight discoloration of PV backsheets is a question of aesthetics, and should not be something to worry about. For others, it’s a sign that a serious degradation process is underway, and trouble awaits.

By

Jonathan Gifford

16 Jan 2018

A PET backsheet with yellowing and flaking of the outer layer | Image: DuPont

Around eight years ago, DuPont launched a global program of PV power plant inspections. Collating those data into an annual Global Field Survey, the materials giant produces a global database of PV module and array failures across a range of climates.“Part of the reason that we started that is because we couldn’t find it in …

This article is part of pv+

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