I just completed my powerwall survey and wanted to ask if any on the forum could comment on certain issues that came up.
I have 400 A service coming to my electrical meter, but as is usual around here for residential clients, they split the lines after the meter in 2, 200A lines which go to 2 200A main panels. I also came to understand that the powerwall gateway only supports 200A capacity, so it seemed like this was a good thing the way my home was wired. I want to do a whole home backup of the service, and was told that it is possible to do this, but:
1)I will have to use 2 gateways for my plan of 6 powerwalls
2)I also was advised that each gateway can only carry a maximum of 3 powerwall units? Although I though the max capacity was 10 units, they mentioned that for every 3, you will need an additional gateway.
3)(and possibly most annoying of the concerns): I was advised that the app software can only show one gateway at a time, and that I would need to create another Tesla account in order to see the other gateway, with its own separate sign in and email address, but there is no way to see both gateways together, since it would be like "having 2 homes" with powerwalls installed and the app can only show 1 per sign in. They also mentioned this would have to be specially set up by Tesla IT since it is actually the same home address for the 2 powerwall systems/gateways.
Is this something that is planned to be changed in the future? A lot of residental customers have 2 200A lines coming from 400A service (because single 400A panels are huge and many times designed more for industrial applications I guess), so I would think it would be great if the Tesla app can support seeing both gateways in the same location/sign in. Also, they mentioned a work around would be to convert the service to a single 400A panel but I thought that the gateway can't support 400A anyway, and would need to have 2 200A gateways no matter what?
Please share your experience with installs already done or plans in process to confirm what I am saying, and any advice about how to set up this system?