S.P.R.E.E. (Solar Photovoltaic Renewable Electron Encapsulator), a Compact, Durable, and Portable Solar Energy Generator
http://www.instructables.com/id/SPREE_Solar_Photovoltaic_Renewable_Electron_/
For under $160 you can construct a S.P.R.E.E. to harness clean carbon-free solar electricity to power your portable electronic devices.
Project: S.P.R.E.E. (Solar Photovoltaic Renewable Electron Encapsulator), is an experiment in alternative energy and solar generated power.The impetus for construction was the desire to have my cellular phone and other small electronics run entirely from free* [...]

