Tell us about yourself!
It might be wise to add a bunch of (Thermal Electric Generator's) TEG's, that would make it so that it doubles as a sort of solar electric generator.
There are a lot of people here that are giving great advice, and constructive criticism, and don't get me wrong, that's great, however there are some people on here that are just critiquing you, and that's not right. However, that's not what I was wanting to get at with commenting, here. I think you may really have something here, when people need something that is extremely portable, and something that they need, in order to have access to the internet, only for a short period of time, this would come in really nifty, and as such I really commend you for doing this.
Look up (without quotes) "batteriser".