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your choice....you have to tell Tesla what you want and have the appropriately sized storage for each use casecan anyone clarify something for me- does the powerwall ONLY power the subset of circuits that they put on a separate panel or does it cover the whole house (assuming the usage is below capacity)?
You can think of it two ways:can anyone clarify something for me- does the powerwall ONLY power the subset of circuits that they put on a separate panel or does it cover the whole house (assuming the usage is below capacity)?
You can think of it two ways:
1. When the grid is up, the Powerwall can offset all your usage and drive your utility meter to zero consumption.
2. When the grid is down, only the circuits inside the gateway transfer switch will be powered.
I'm in the same boat except swap your AC for my Electric stove. i would understand more if my typical usage wasnt so paltry. I typically use 12ish kwh a day which the powerwall site says should more than be covered by a single unitFor me, Tesla would only do a whole house backup if I bought 2 or more powerwalls. For one powerwall only, they won't do the whole house. For my case it worked that my entire house minus my AC was on a subpanel already, so I got what I was looking for.
Currently, the Powerwall can do single and split phase. I do know on our product roadmap, we may have a 400 Amp Gateway and to be able to isolate a single phase to do a partial backup.
It is always possible Tesla has a policy that is more limiting that what the technology can do. But technology-wise, what you need to do is to pick a point on the electrical system graph and install the Backup Gateway there. Everything downstream of the Backup Gateway would be backed up; everything on the utility side of the Backup Gateway would not be.Sorry to bump this, but had a relevant question before cancelling my powerwall. I was told at the site survey that they can NOT backup more than one panel, so I had to choose a single panel that had the most useful things on it (and was told it didn't matter how many I bought). Truth?