I recently made a post on this blog about inflatable wind turbines. Trudy commented that it would be nice if there was a smaller version for campers. Orange clearly thought the same thing and commisioned a prototype tent mounted wind generator. The resulting device charges up a battery which in turn can charge up another device. Here's a picture: -
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdllsFAoLrmJ-Oi53atSeGmB48i508UcDI3coNkhqLkZP5e8USa-i7J523wm3aCv4KTXsCdIqPJMIq0BAu3IZem_zKa1M4PLu7_YBRlOFV7pvCxlS9VZhQPEV1WGc_GXNkRc5B/s320/wind_powered_cell_charger.jpg)
- The good news is that it only weighs 150 grammes.
- The bad news is that to generate enough energy to fully charge a mobile requires 24 hours of 12mph wind (I guess it won't run a cool box).
Still it is only a prototype and may improve. Find out more
here and
here.