“We would like that this project will be announced by governments as a joint Franco-German project,” Fraunhofer ISE head Eicke Weber said at an event in Berlin, adding that from 2015/16 there will be a shortage of global PV production capacity.

The XGWp-project now is in a kind of “stealth mode",  Weber explained, saying that he currently can’t disclose technological details or which companies back the project.

“We