Electricity generation

California Moves to Turn Freeway Traffic Into Electricity

California legislators are looking to put the state’s notorious car traffic to good use. State officials recently approved a plan to generate electricity from vibrations produced by cars driving down freeways, according to the San Francisco Chronicle.

The California Energy Commission recently voted to put $2.3 million into two piezoelectricity projects, which convert pressure into power. One pilot will test a 200-foot-long piece of asphalt on UC-Merced’s campus, while the other experiment will be built by the San Jose green technology company Pyro-E. The company’s technology is expected to generate enough power to supply 5000 homes using less than a half-mile of piezoelectric highway.

The idea is that highways could produce energy mechanically, much like a watch runs on the mechanical energy of a spring….