Foil for use with a double curved solar panel

Foil for use with a double curved solar panel. The invention relates to a foil (100) for use with a double curved solar panel, the foil showing a multitude of incisions having two closed ends, the incisions dividing the foil in a number of mechanically interconnected areas, characterized in that the foil comprises at least a first group of incisions (102) having a first orientation and a second group of incisions (104) having a second orientation, each of the incisions having two closed ends, a first closed end located at a mechanical interconnection (110) between a first cell (120) and a second cell (122) and a second closed end located at a mechanical interconnection (112) between a third cell (124) and a fourth cell (126), the incision bordered by a mechanical interconnection (114) between the first cell (120) and the third cell (124) and bordered by a mechanical interconnection (116) between the second cell (122) and the fourth cell (126), the incisions partly having a first orientation and partly having a second orientation, the first orientation different from the second orientation.