One things I like so far, free. This is a free service offered by my electric company, Duke Energy. Duke Energy program for Indiana. But there is a catch, I have to have electric heat or an electric water heater. Well, I have gas for both. But, I am in the process of replacing my gas water heater with an 85 gallon electric with add-on heat pump. So I have to wait until I get that installed. When I do get the energy audit, I will post the results.