BUILD YOUR OWN SOLAR PANEL FOR -- $5!

Not that you need to do it, but it captures the simplicity of the dream. From a great website, Groovy Green:

DIY anything connected to a renewable energy concept is generally ... messy, complicated, and frankly–I’ve never been good at home improvement. However, the guys over at The Sietch have me rethinking my lack of skill with their super easy DIY Solar Thermal Panel. Total cost is less than $5! Let’s see: you need the back grill of a fridge, a floor mat, some window glass, tape, tubing, and foil. Put it all together and you’ve got a pretty efficient water heater–over 110 degrees on sunny days ... check it out and let us know if you have any success in making green tea with this thing.Link: Build Your Own Solar Thermal Panel