A new fuel cell feeds on bacteria in the dirty water from our drains and toilets while generating power at the same time.
Environmental engineer Bruce Logan is developing microbial fuel cells that take advantage of the natural desire of wastewater bacteria to munch on organic waste. When these bacteria eat the waste, electrons are released as a byproduct that can be directed into a circuit to power everything from light bulbs to ceiling fans.
(READ the story in Fast Company)