Over the last 14 years several biodiverse extensive green roofs have been in stalled in Basel in combination with Solar panels. This has included both Solar thermal and solar energy (PV). Part of the drive for this has been to improve biodiversity in the city through the need for ecological compensation on new developments. Something was taken and to be compensated for. This is different from ecological replacement or restoration.
First Biosolar Roof in Canton Valais (CH)
The first Biosolar roof in is a private villa new built on the south side of Sion. The owners were completely open to a new ecological approach of greening a flat roof in combination with solar thermal panels. Their original plan for the house had not included any green roofs. Thanks to the designers who knew about the project and were incontact with the they persuaded the owners to choose a Biosolar roof approach.
With the following statements, word play and strong expression, the city of Lausanne (French speaking part of Switzerland and at the Lac of Geneva) launched at the beginning of March 2015: „Une ville jusqu’au bout des toits“ and „au diable les toitures plates qui font grise mine dans le paysage urban!“ the green roof policy initiative for the city.