Interesting Electric Generation Ideas

Washington's Blog guest posting at The Big Picture:

I wrote yesterday:

Another use of a free, wasted byproduct to generate electricity is piezo-electric energy. “Piezo” means pressure. Anything that produces pressure can produce energy.
For example, a train station in Japan installed piezo-electric equipment in the ground, so that the foot traffic of those walking through the train station generates electricity (turnstiles at train, subway and ferry stations, ballparks and amusement parks can also generate electricity).
Similarly, all exercise machines at the gym or at home can be hooked up to produce electricity.
But perhaps the greatest untapped sources of piezo-electric energy are freeways and busy roads. If piezo-electric mats were installed under the busiest sections [a little ways under the surface], the thousands of tons of vehicles passing over each day would generate massive amounts of electricity for the city’s use.

A couple of readers thought that sounded nuts.

He went on to mention that the Dutch are planning to install solar panels in bike lanes and roads.  Interesting.