No Electricity, No Problem: Wind-Powered Phones

Submitted by Rob Katz on May 16, 2005 - 20:33.
I first read about these wind-powered, off-grid cell phone chargers on WorldChanging, which cites Gizmodo as a reference. The product, designed by students at the Indian Institute of Technology, is a small (fits in your pocket) wind-powered turbine that can quickly and easily recharge a cell phone - and it costs only 200 rupees (5 dollars). It strikes me as great for off-grid, rural areas that may have intermittent or non-existent electricity. Ideal conditions for the gadget are coastal areas, which have near-constant wind. The success of models such as GrameenPhone in Bangladesh, Smart Communications in the Philippines, and CelTel in Tanzania hasve been, to this point, somewhat dependent on a reliable source of power - or else villagers have to travel into a nearby town to charge their phones. With this innovation, the potential of cell phones to break down information barriers throughout the developing world could be unlocked and enabled on a wholly new scale. For more, read the story.
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Submitted by _manicplanet on June 1, 2005 - 13:28.
Interesting that the article specifically references charging while "travelling in a bus, a car or a train". I'm not absolutely sure, but isn't this just an indirect way to take energy from the vehicle engine and put it into the phone, better done by providing a direct line from a dyno? Presumably one need not be moving in a vehicle to make use of this device. The handcrank/spring storage ala FreePlay seems more promising, offhand. It would be great if anyone knew any more about charge time, wind speed/consistency needed, etc. BTW, don't your cell towers need juice?

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