So far, so good. I have had the solar installed for a couple of months now. I will wait for a whole year to pass by before I can make a true judgement on if it is saving me money or not. Right now in these hot summer months, I have to say yes, it is saving me money. Citadel did a great job on my installation. They were prompt, clean and had me up and running in a couple of days. The experience has been a positive one.