How the cracks are forming
Scientists in the United Kingdom have investigated the formation of cracks in PV cells, confirming that the high temperatures cells are exposed to during soldering for interconnection are a leading cause of cracking. Their findings will aid future research into module reliability and predictions of how cracks are likely to form.
Lead-free soldering in modules: It can be done!
pv magazine’s UP sustainability campaign has investigated the use of lead in PV panels and found, with soldered cell interconnections in particular, viable alternatives are scarce. However, German headquartered manufacturer Opes Solutions has launched a small module for the off-grid market featuring lead-free solder, developed at the request of a customer. We caught up with Opes CEO Robert Händel for a closer look at the module and the challenges and benefits of going lead-free.
