Can a new PV solution fix backsheet cracking?

In this pv magazine Webinar, we examine the size of the problem and take a look at a new solution from Dow that promises a speedy repair for damaged backsheets. In Germany alone, experts have estimated that as much as 10 GW of deployed PV capacity could be affected by backsheet cracking.

Does backsheet cracking affect PV capacity?

In Germany alone, experts have estimated that as much as 10 GW of deployed PV capacity could be affected by backsheet cracking. And other regions face a similar challenge, with the problem not confined to any particular deployment conditions or even a single backsheet material.

Are solar cells affected by different crack sizes?

Furthermore, we have also considered studying different solar cells affected by different crack sizes (1–58%), which is different from other recent research work 26, 31, which only considered studying PV module-level cracks (i.e., they did not investigate solar cell-level cracks vs crack sizes).

What causes backsheet degradation in solar panels?

Cracks on solar panel backsheets in straight lines, along the gaps between solar cells. Scientist at the U.S. Department of Commerce’s National Institute of Standards and Technology claim to have shed more light on the root causes of backsheet degradation in solar panels.

What happens if a backsheet is cracked?

Once a backsheet has cracked severely enough, it no longer provides an effective barrier against moisture. Once moisture sets in, PV modules can quickly lose performance to corrosion, leakage currents and other issues. The worst cases come with additional concerns over safety.

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.