The photovoltaic panel back sheet is cracked

What happens if a PV module cracks & degrades?

When the polymer backsheet that protects the rear side of a PV module starts to crack and degrade, loss of performance can be both rapid and severe. And thousands of modules deployed over the last decade are now thought to be vulnerable, making it a billion-dollar issue for PV asset owners.

How many GW of solar capacity is affected by backsheet failures?

The materials supplier estimates that, in Europe alone, about 6 GW of solar capacity is affected by backsheet failures. After years of service in humid or dry, hot or cold conditions, and under severe UV-light irradiation, backsheet materials can suffer from defects, with some materials more susceptible than others.

Can a Tedlar-based band-aid fix a solar backsheet failure?

DuPont Photovoltaic Solutions, though, has now brought to market a solution which promises an easy fix – a Tedlar-based band-aid for modules. The materials supplier estimates that, in Europe alone, about 6 GW of solar capacity is affected by backsheet failures.

How do I repair cracks in the back sheet?

Look for "neutral cure" or Silicon II (2) for the patches... Original silicon is an "acetic acid" cure (smells like vinegar--which it is) and may cause corrosion issues with the conductors/cells. Re:

What happens if a semiconductor backsheet fails?

After years of service in humid or dry, hot or cold conditions, and under severe UV-light irradiation, backsheet materials can suffer from defects, with some materials more susceptible than others. If backsheet failure reaches a critical stage, the film begins to crack, exposing the rear of the semiconductor.

How do you fix a crack in a roof panel?

My thought is to paint the cracks from the rear of the panels with white spray paint and then cover them with aluminum tape. The sticky side of the tape is white, but I think it best to add an additional layer of insulation by using the paint.