Tesla Motors Club

As I mentioned in another thread, I am building a new home which, right now, is about framed out and the trusses should be going up soon. However, I have pulled the plug on the solar roof because I am just not comfortable with the uncertainties and poor communication from Tesla (and lack of commitment as to how long the underlayment will be on before they can get to it). I am just going to have my GC put on the non-solar shingled roof and then once the CO is issued, and I can move in, I'll order Tesla panels and PWs and have them put on post construction. I guess having a few months of power bills from the grid will give me a good baseline for future savings.

Question: Any suggestions for things that I can have my GC do during construction that will make the future installation of solar panels and/or multiple PWs easier? One person in another thread mention having him do a conduit to the roof. I checked with GC and he said not a problem and he can cap it off before final inspection. Does anyone have any other suggestions? Thanks in advance.