Of course taking energy from cars going up ramps is just using the gas we paid for to generate power... BUT, it could be good if used in the correct way. If these generators were placed in places where we always have to slow down -- such as at stop signs -- or if they were only turned on when approaching a traffic light that has turned red, then it would in fact help save our break pads while at the same time generating electricity. So maybe what they're saying is that they're only installing these things on ramps that lead into traffic lights or slower speed limits, so they would in fact help in slowing the car down, as apposed to stealing our cars' energy? One can only hope...