Making a Solar Panel

I found a recipe for making your own solar panel. The link is below. I haven't been able to build it yet, but plan on doing so this weekend. I'll add another post once I complete and test the project. It looks like one should be enough to power a room without too many appliances, but may not be strong enough for a more comsuption-intensive room, like a kitchen.

http://www.rain.org/~philfear/how2solar.html