ASA
I found the GreenDIYenergy.com site and watched the video. I went to ebay and foun 100 - .5V 3.6A MULTICRYSTALLINE SOLAR CELLS. This is enough to make a 2 18V 3.6A 65W solar panels for a total of 18V 7.2A 130W system with 24 cells left ( almost a 3rd panel). I'll teach the children how to solder, calculate watts, volts, amps and load values, while making a solar panel from scratch. They will love it and the cost of one of these is about $350 dollars (retail).
ASA
Jeffery Muhammad