Nanogenerators

Personalized power:

Researchers have demonstrated a prototype nanometer-scale generator that produces continuous direct-current electricity by harvesting mechanical energy from such environmental sources as ultrasonic waves, mechanical vibration or blood flow.

Think of the ramifications of this invention... Now all you misanthropic, enviro-freak hippies can have yourselves implanted full of these things and become energy self-sufficient. You should consider putting any excess energy you might produce back into the grid: just stick your finger in the nearest light socket.