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Power your cell phone with a campfire

By | August 3, 2012, 3:00 AM PDT

Basic wood- or charcoal-burning cook stoves has been widely innovated in recent years, in order to lessen their negative impacts on the environment and public health in the developing world. Toward that end, more than 20,000 clean-burning cookstoves, produced through the Darfur Stoves Project, have been distributed in Darfur.

There is a trend among makers of these types of solutions, which fall under the rubric of appropriate technology, to also begin marketing their innovations in the developed world. Fenix International and its ReadySet is a good example of this trend. Another example is BioLite, a New York-based manufacturer of cookstoves.

BioLite’s HomeStove is a nifty stove that includes a small thermoelectric generator. As heat builds in the stove, electricity is generated. The electricity powers a fan that improves airflow in the fire and boosts its efficiency. But any extra electricity is also captured and used to charge small electronics, such as mobile phones or LED lights, via a USB port.

The BioLite HomeStove

The BioLite HomeStove

The HomeStove burns 50 percent less wood and generates 95 percent less smoke than conventional wood stoves used for cooking by around half the world’s population. Now BioLite has developed a more compact version of the stove and is marketing it in the U.S. as a camping stove.

The BioLite CampStove is 20cm by 13cm and weighs just under a kilogram, making it very portable for camping and backpacking, especially considering that the user does not need to also carry fuel. Instead of gas, the CampStove is powered by small twigs that are collected at the campsite.

Reportedly, an Apple iPhone 4S (2G) can gain 60 minutes of talk time from 20 minutes of charging with a strong fire. And this Outside magazine review by Bob Parks gave CampStove thumbs up: “The BioLite stove worked as promised, and was fun to use. It produces continuous power of around 2 watts at the standard 5 volts of a USB cord. For a solar panel to produce the same energy, the panel would have to be about 26 square inches in size—quite a lot of glass to lug around in your pack.”

The CampStove sells for $129.

Via: Energy Harvesting Journal and Outside

Images: BioLite (Top image is CampStove; Bottom image is HomeStove)

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Mary Catherine O'Connor

About Mary Catherine O'Connor

Mary Catherine O'Connor is a contributing editor for SmartPlanet.

Mary Catherine O'Connor

Mary Catherine O'Connor

Contributing Editor

Mary Catherine O'Connor has written for Fast Company, Wired, Outside, Entrepreneur, Earth2Tech, Earth Island Journal and The Bold Italic. She is based in San Francisco.

Follow her on Twitter.

Mary Catherine O'Connor

Mary Catherine O'Connor

Mary Catherine has written white papers and marketing material for technology companies and will not write about companies with which is actively engaged. She will disclose any instances in which her work mentions companies for which she has worked. Mary Catherine does not hold any investments in the companies that she covers.

She writes for SmartPlanet and is not an employee of CBS.

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0 Votes
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Clever.
This will make them some nice money to help support their global cook stoves projects.

Unless they get hijacked by greedy people, these cook stove projects are the type of affordable low tech build, high tech design solutions that can make a real difference in truly poor parts of the world.
Posted by Hates Idiots
3rd Aug
0 Votes
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26 square inches?
Do you mean 26 square inches or 676 square inches? 26 square inches is a square a little more than 5 x 5. 676 sq inches is a square that is 26 x 26. Big difference!
Posted by ljlafleur
3rd Aug
0 Votes
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26 square inches should do it
I think 26 square inches should do it. I have a 125 watt panel that is 26 inches wide by 54 inches long. And 125 / 54 = 2.3 watts in 26 square inches (26 x 1).

A 26 x 26 panel similar to mine would produce about 60 watts.
Posted by Day Dreamer
3rd Aug
0 Votes
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Thermal VS Solar for energy production.
Yeah, but with the BioLite you don't need ideal solar condition, plus you
can charge it at night. Seems like a good product, but since its based on
thermal coupling to generate power, just wondering how long it will last
until power production starts to taper off because of fatigue factors involve
the types of materials used in constructing the device.
Posted by LorienQuestion
3rd Aug
+3 Votes
+ -
Good idea BUT
2 W at 5 volts yields 400 mA peak. I have found that testing automobile USB converters that I have returned those sporting less than 500 mA. My Blackberry likes 600 mA or greater to properly charge. In fact the 120 VAC charger they include pushes 750 mA.

Take note of what your device requirements are first.
Posted by dave@...
3rd Aug
0 Votes
+ -
Now all we need is a survivable Apocalypse.
Or zombies.

It seems that of late, survival skills and tools are gaining popularity. Cool tools, are always welcome.
Posted by gork platter
3rd Aug
0 Votes
+ -
WOOD STOVE
How about Your wood stove To store power when You have a power outage at home Just for lights. You could watch The food spoil in your freezer .
Posted by davewsr2
4th Aug
0 Votes
+ -
Clever.
This will make them some nice money to help support their global cook stoves projects.
Unless they get hijacked by greedy people, these cook stove projects are the type of affordable low tech build, high tech design solutions that can make a real difference in truly poor parts of the world.
Posted by babaluuu
17th Mar
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