A group called SMIT (Sustainably Minded Interactive Technology) has designed artificial solar leaves that attach to your house and collect solar and wind power. Instead of mounting huge photo voltaic panels to your roof, you can attach these little “leaves” which flutter in the wind and look like climbing ivy. (The tricky thing is, they all have to be wired together!)
It’s an inexpensive way to generate solar and wind power for your home. You don’t get as much power as with the large panels, but you don’t pay as much either. It might be a nice option for a home office or a hot water tank.