If you are considering a solar power system there are two main factors to consider. First, the time it will take to pay yourself back for your investment. Second and just as important, the quality of the install. How long is the ‘no roof leak’ guarantee? If either of these factors are substandard then at best all you are doing is trading who you buy your power from, sometimes worse.
Hire a solar contractor that knows both “Roofing and Solar”