Brilliant Idea #314 puts a sail – fabric that is in the shape of a wing that is then stretched inside the uprights. As wind passes over the sail it generates lift which pulls a cable up. The sail then drops and rises again, and drops and rises again. That oscillation is pulling a cable up and then releasing and up again and releasing. Every time that happens, electricity is generated.
The genius bit of this idea is that of course the pylon is already there – there are 88,000 pylons in the UK alone AND the electricity that is generated is put straight into the grid via the pylon.