I received a call last night from a Tesla Rep. I had a few questions about the solar roof as I intend to install it on a new garage that will have a granny flat atop of it; these were: how much a single PV tile generates in energy and how many could I expect to get onto a roof of certain size... The rep stated that he cannot disclose any of the info about the tiles and only offered to put the square footage of the roof into TESLA's online calculator... He recited the monetary "savings" in dollars from the calculator results but had no clue about the specs of the product they are trying to sell. To boot, he had no idea of the cost that I would incur for the given size of the roof. Not even an estimate. Absolutely clueless. Amazing and very disappointing.