Making energy from dirt

by Brad Linder
Nov 6th 2007 @ 9:56PM

While we've been running around trying to figure out how to save the planet, it turns out some scientists have figured out how the planet can save us. And when I say the planet, I mean the ground beneath our feet.

Living Power Systems has developed a commercial microbial fuel cell similar to the plant-powered fuel cell we told you about a fee weeks back. But the Living Power Systems fuel cell runs on dirt. Or rather, it generates electricity from bacteria in dirt.

If you think back to your third grad science class, you'll probably remember that you can generate electricity from a potato or other living material. But you generally get such a small amount of energy that it's not really worth the trouble to harvest it. Living Power Systems' technique is exciting because it actually makes dirt power usable. I'm not saying you'll be able to power your laptop computer with dirt anytime soon, but home lighting and cellphone chargers aren't out of the question.

Microbial Fuel Cell technology will probably be deployed first in developing nations where access to electricity is a bit more inconsistent and unpredictable than in say, New York City. But as the technology gets more and more refined, we could see dirt powered cellphone towers or even homes.

[via Earth2Tech]

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