The rebates are pretty good and if you use a lot of electricity, it is probably worth it. Beats burning up in the summer. Definitely worth having someone give you an estimate and have a free energy audit done on your home. We have had solar for a year and it cut the bills in half. Last high bill during the summer was for over 600. due to running the air conditioner. Next improvement will be new insulation. I know that SDG&E will probably figure out a way to raise rates anyway, but this was a solution for now. Love that free sun energy.