I had my first real experience using Photovoltaic cells today. I had a little left over allowance and headed for one of my favorite places that I think we all have heard by the name of RadioShack. While browsing around I spied the section were the Photovoltaic Cells were placed. Soon I realized that I would just have to buy four cells at almost five bucks a piece and a very small motor at a few dollars. I have a big need to do a science experiment that will position a model that will always face into the sunlight. This would be a test of the controller that I would use to do that with. A larger scale would come later on if I could get this prototype to work properly.