I have a few clients that had solar panels installed because they felt they would save money or even make money by selling power back to the Electric Company. They have all told me that it was a huge mistake that they wish they had never done. I don't remember the details enough to write them down, it's just what they told me.
I also work with a bunch of local realtors. Every one of them have told me that solar panels make selling the house harder. Buyers do not want them, and in most cases, the seller has to remove them to sell the house or lower the price of the house in order to sell it.
I wonder what happens when you need a new roof? Hail is very common here and most people wait for a hailstorm to get a new roof. Their insurance pays for it, or most of it, and it's usually just a matter of time until happens. Spring thunderstorms can be extreme here. What happens to solar panels in a hailstorm? What do you do with solar panels when you get a new roof? How much does that ad to the cost of a new roof?