I received and answered this morning after receiving several calls a day for the past few weeks, he says the name is something like invert solar and that they have been calling houses in the neighborhood and if our PGE bill is over 125-150 a month .... so on and so forth. When I mentioned that I was a Ca state licensed general contractor and wanted a little more information the guy hung up. I tried calling back and it goes to a voicemail service that can not receive messages and I searched the company name with no prevail.....