Discarding the notion of using them to charge other gizmos, an affordable, enclosed, fan-powered wood (or other solid fuel) -burning stove is vastly more efficient and protective of health than an open hearth. More, here.

Global cookstove initiative

A local organization, Solar Cookers International, has been taking the concept a step further with fuel-free cooking.

Solar Cookers International

I love this stuff.

Cheers,

Originally Posted By Dryer
The third world implications with this thing don't make sense to me. I know missionaries that build serious power-plants, fueled by biogas, that charge big batteries for villages. They don't need itty bitty chargers for smartphones, and they don't fuel their stoves all day.

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--Rick