Zonk from the rolling-rolling-rolling dept.
Ant wrote to mention a BBC News report on a ramp that generates power via passing cars. From the article: "Dorset inventor Peter Hughes' Electro-Kinetic Road Ramp creates around 10kW of power each time a car drives over its metal plates. More than 200 local authorities had expressed an interest in ordering the £25,000 ramps to power their traffic lights and road signs, Mr Hughes said."
We will have solar energy as soon as the utility companies solve one technical
problem -- how to run a sunbeam through a meter.