MIT researchers have successfully created solar cells so thin and so light that the cells could rest atop a soap bubble without disturbing the bubble in any significant way.
Source: Marlon Kobacker Reviews New Developments in Photovoltaic Cells – Go Australia Reviews!
I can’t believe how far technology has come in recent years. The solar panels on my roof are large and heavy. Aluminum frames surrounding the panels to keep them on the roof because of their bulk.