Chatham, Ontario, Canada
Have solar panels on the roof of the car collecting and storing energy to help when the car is plugged in to recharge. It would save some of the energy in recharging.
Dayton, Ohio, USA
Turn the highway into a electrical grid by building the road with design pressure plates layered in the road. The plates would absorb the energy created by the cars and trucks to create an electrical generation grid.
The idea is for use in hybrid cars. Capture exhaust manifold, catalytic converter, and exhaust pipe/muffler waste heat to create steam to drive a pump or turbine to create more electricity to charge the batteries of the hybrid vehicle.
This system in combination with a hho (oxyhydrogen) generator supplying hho to the intake of the engine could greatly reduce fuel used by hybrid vehicles and charge the batteries even when the vehicle is turned off.