Re: Wasn't there something similar for car parks a few years back?
> using the motion of vehicles along a road surface, and a moving plate in the road, to generate electricity.
The problem with that is that the vehicle would seem to be going slightly uphill, or like driving through molasses. Thus they would use more fuel than the generation of energy would warrant. The only point of it being that the car owner pays for the additional fuel use and the road owner gets the energy.
Same with walking: the pedestrian needs to buy more 'fuel' (food) after waling 'uphill'.
Biting the hand that feeds IT
