This site is a MUST place to go, I learned so much about Solar installation programs and products, which was great once I started talking with installer companies, as I could actually understand what they were talking about and know if I was getting a good deal. There was a page on there where I could compare different panels, inverters and batteries so that I could know if one installer was giving me a subpar product at a higher rate than another. Additionally, you can put in some information and get several installers to give you some no-pressure quotes for you to compare. These quotes were below the costs of going with installers that are represented at the "Big Box stores" or the ones that come to your door (I got quotes from everyone). Most of the quotes I got from Energy Sage were on the lower $ side but with similar or superior products and reviews. In the end I didn't go with solar due to my own decisions, but I still felt confident enough to make the right choice would I had moved forward, that is why I am writing this review! Great Job EnergySage!