Why why why oh why ?

All that light wasted, in my office we're under the neon light all day long. What a waste. Can't we reuse even a sip of it ? Or that bright and infinite (on a human scale) source of power that is the sun, in thoses days of over population and over power comsumption, let's turn green.

Where to buy ?

• SeeedStudio http://www.seeedstudio.com/depot/05w-solar-panel-55x70-p-632.html?cPath=104_107
• Akizuki a bit expensive but they have very big ones http://akizukidenshi.com/catalog/c/cgenerate/

Tutorials and howto

Solar and battery, make the toy run even when a cloud passes by

• Very good explanation, very clear http://www.robotroom.com/Solar-Recharging.html

Solar power without solar panel : the photovoltaic effect

• Howto make power with a transistor and sun : http://circuitsdiy.com/simple-diy-solar-panel-homemade
• The theory http://en.wikipedia.org/wiki/Photovoltaic_effect