Quoted from John_I:Nice in concept, but not worth the trouble IMO for the minimal net benefit. Get dual pane windows, all LED lights, good air conditioner and lots of insulation.
I agree from an energy standpoint - more cost effective to reduce your usage than install solar. I would add reduce the number of energy vampires you have around the house which can add 10% or more to your energy bill.
However, from an emergency power perspective, a small solar array can charge your cell phone, keep your deep freeze from thawing out, run the fridge and your radio/tv when the power goes out.
