Step by step article on builing a portable sorlar panel. This would be a good learning exercise before trying to build solar panels for a whole house.

Wind turbine kits for residential use. These will come in handy on those stormy days when the sun hasn't come out for a few days and the solar panels aren't providing enough power.

Hand digging a well. Most people probably will not want to do this themselves, but it is still good information to know.