Piezoelectric wind harvesters mounted on vehicles could generate electricity to charge batteries or power on-board electronics while simultaneously decreasing drag caused by vibrations, according to these researchers. Look for piezoelectric energy harvesters in many applications in the coming years. R.C.J.
Piezoelectric modules developed by City College of New York professor Yiannis Andreopoulos alone would generate only milliwatts today. But since current output is proportional to velocity, the wind harvesters could potentially generate thousands of watts of power if mounted on vehicles or even airplanes.