Watch the movie! The invisible damage caused by walking on PV modules.

BIPV modules (Building Integrated PhotoVoltaics) are often exposed to mechanical stress during installation. This is a result of transport, handling and installing solar panels in places that are difficult to access. Mechanical load may cause cracking of cells and induce a negative effect on the long term performance. Such stresses should be avoided as much as possible.

As part of the BIPVpod project, SEAC did a mechanical loading experiment to investigate the invisible damage caused by walking on crystalline silicon PV modules. We chose two different module designs: a conventional glass-foil module and a glass-glass based module. EL images of these modules under stress were taken, and a video was created to demonstrate the effects of walking on panels and the differences between the two module designs.

The results show that in these experiments the glass-glass PV modules performed substantially better and didn’t show any signs of micro-cracking, in contrast to the glass-foil based modules.

To watch the full EL video, click here. More information about the project can be found here.

For more solar news follow us on LinkedIn by clicking here.