Featured in Racing towards high performance – 06-2019

Is PERC still bankable?

Light-induced initial degradation in PERC modules is currently a subject of intense discussion, but tests at PI Berlin have shown that the problem is solvable. Founder and CEO Paul Grunow explains the effects, the approach, and the results.

By

pv magazine

04 Jun 2019

Climate chamber at PI Berlin. LeTID degradation can only be tested at elevated temperatures. | Image: PI Berlin

Although initial degradation has again become the subject of intense discussion, it is essentially nothing new. Typically, light-induced degradation (LID) shaves one to three percent off module efficiency. This is subtracted directly from the rating plate value of the modules and is taken into account by experts and banks when calculating yield forecasts. For this …

This article is part of pv+

Subscribe digitally to unlock exclusive investigative reporting, expert insights, in-depth analysis, and premium background coverage. Your subscription also includes full access to the digital edition of our magazine.