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February 5, 2009 6:13 AM PST

X Prize announces green-idea winners

by Candace Lombardi
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Kyle Good (left) and Bryan Le (right) receive their $25,000 check from: (top left to right) S. M. Shahed, corporate fellow of Honeywell Turbo Technologies; Neil Blakesley, vice president of strategy and marketing at BT Americas; Peter H. Diamandis, chairman and CEO of the X Prize Foundation; Lee Stein, founder of Prize Capital; and Mark Bernstein, managing director of USC's Energy Institute.

(Credit: X Prize Foundation)

The X Prize Foundation announced the winner of its "What's Your Crazy Green Idea?" competition on Thursday.

The first-place winners, which will receive $25,000, were University of California at Irvine students Kyle Good and Bryan Le on the Capacitor Challenge team, for their idea that someone should develop a more efficient energy storage device to replace batteries, for everything from iPods to cars.

Unlike other X Prize competitions, the winners of "What's Your Crazy Green Idea?" were not picked by a panel of educationally pedigreed judges to build an invention for which they submitted plans.

Instead, the creative-idea winners of the "X Prize in Energy and Environment" were chosen through a contest held on Google's YouTube. Competing among 130 submissions, Good and Le's team video garnered about 4,200 votes.

"Capacitors recharge in seconds, survive thousands of recharge cycles, and provide high-efficiency electricity by using environmentally benign materials. But here's the challenge: capacitors are far more expensive (and) provide far less energy than common batteries," Le said in his team's contest pitch video on YouTube (below). "We invite the next generation of inventors and engineers to construct an energy storage device far more advanced, far more environmentally friendly, far more affordable than we have yet to see in our lifetime."

While they are absolutely right about the need for such a device, the idea is quite a hard technological challenge.

For the engineering geniuses game for taking a crack at this, here are the guidelines, as proposed by the Capacitor Challenge team:

  • Use only self-contained capacitors.
  • Exceed the energy density of average lead acid batteries.
  • Fully recharge in less than a minute and up to 500,000 cycles.
  • Be completely recyclable and incorporate nontoxic materials.
  • Cost less than twice the price of average lead acid batteries.

In a software-driven world, it's easy to forget about the nuts and bolts. Whether it's cars, robots, personal gadgetry or industrial machines, Candace Lombardi examines the moving parts that keep our world rotating. A journalist who divides her time between the United States and the United Kingdom, Lombardi has written about technology for the sites of The New York Times, CNET, USA Today, MSN, ZDNet, Silicon.com, and GameSpot. E-mail her at candacelombardi@gmail.com. She is a member of the CNET Blog Network and is not a current employee of CNET.
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by methos1999 February 5, 2009 9:34 AM PST
I applaud the X-prize goal of coming up with something cheaper than lead acid batteries but with higher energy density, but the environmental motives are crap - lead acid batteries are highly recyclable, as are most metal based batteries. How about ultra-capacitors?
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by kc6hur February 5, 2009 10:35 AM PST
There is a company that has a patent on Ultra Capacitor technology and has an exclusive deal with the Zenn car company in Canada. Please see the following: http://www.grc.com/sn/sn-177.pdf
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by caveman1952 February 5, 2009 8:08 PM PST
It's curious that none of the automakers are developing hydraulic drive systems, which can recover 70% of braking energy (versus 25% for battery regeneration) and don't have the weight or recycling issues of battery systems.
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by Stinky109 February 5, 2009 10:49 PM PST
Why not open the contest to non-battery cars? Like the air powered car from MDI/Guy Negre http://www.popularmechanics.com/automotive/new_cars/4217016.html

It can be recharged in about 3 minutes with an air compressor and has totally clean emissions. No expensive batteries to worry about. It still isn't in production but it should be allowed to compete. There are other firms working on air powered cars with a different type of engine. I'd rather be using air than batteries which one day I have to dispose of in a land fill.
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by random truth February 6, 2009 3:31 AM PST
What about a device that directly converts heat to energy. Saying on earth it will probably never go below 300 degrees kelvin. Their should be plenty of heat energy that you could use. According to physics it should be possible. Also when you use the device it would probably get cold. So the battery could be the computers cooling mechanism.
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by c|net Reader February 20, 2009 11:50 AM PST
I haven't read the rules of the contest, but it seems pretty stupid to award a team $25K just for saying someone should do some research to create, in essence, a better battery. As kids are wont to say, "Like, duh!"
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by pilot_andy March 2, 2009 9:25 AM PST
I'm with c|net Reader. You tube voters can't be expected to know that the industry has been trying to do this for years. Awarding $25K for repackaging an old an obvious notion ... now that's a "crazy green idea".
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About Planetary Gear

In a software-driven world, it's easy to forget about the nuts and bolts. Whether it's cars, robots, personal gadgetry or industrial machines, Candace Lombardi examines the moving parts that keep our world rotating in her blog, Planetary Gear. A journalist who divides her time between the US and the UK, Lombardi has written for the sites of The New York Times, CNET, USA Today, MSN, ZDNet, Silicon.com and Gamespot. Email her at CandaceLombardi@gmail.com. She is a member of the CNET Blog Network and is not a current employee of CNET.

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