There's only one source of renewable energy that can provide all of the world's needs and that's the Sun. In fact, enough sunlight falls on the Earth's surface in just a couple of hours each day to meet the whole world's energy needs for one year. The question is: how can we effectively and economically harness this solar energy, without mass-producing very expensive conventional solar cells, which would ultimately require vast tracts of land in order to do their job? Nanotechnology could provide the answer in the form of a new kind of solar cell, one which would be relatively inexpensive to manufacture and highly flexible in design. In fact, you maybe surprised as to just how flexible these cells might be! Find out more by watching this movie.