I had the misfortune of dealing with Avant Solar. I was told since I had the old disc meter, with the panels it would spin backwards and I would get a "one for one" credit. Also told me "Do not send the forms to Synergy" and you will get a year or two of the "one for one"credits. Synergy came and read the meter and charged us on last years usage plus inflation. We contacted them, chose not to reply. A couple of emails later and they are still in denial.
I phoned Avant Solar today and asked if I would get one for one if I had the disc meter, they replied "YES",
I would not recommend Avant Solar even to my enemies.
I'm in the process of getting a full back window sticker, advertising my experience with them. I'm $7,524 out of pocket.
They need to live with there past.