What is your estimated ROI? Are either one of you trying or want to be off the grid?
If you guys are still hooked to the grid, did you go with a battery bank or do you just sell the power back to the electric company?
I've thought about getting solar and have it mounted on my shop with its 50x60ft roof. Given the current state of battery tech, I'd more than likely sell the energy created and not deal with the overhead of a battery bank. I'd only have a battery bank if I wanted to be off the grid.