All of us walk at least 5 km a day from the time we wake up until we go back to bed. We can collect walking energy and convert it to electricity. Using a shoe that generates and stores electricity you will have enough power to charge your phone or night lamps from a day’s travel.
What about a gym where people go exercise, and run on tread-mills – BUT! – these tread-mills generate power to return to the electric grid.
It’s a great idea, but of course I’m poor, and have no means of starting this business, and would rather give it to you to give to someone else who has the means to implement such an idea. Thank you.