I would like to see a PowerWall Gateway that can handle:
* power whole house (3 or 4 PWs in my case)
* grid-tied solar with net metering
* recharge PowerWall from either source: solar or standby generator
The reason for needing the generator capability is simple: In an extended multiple-day grid outage, my solar can't fully recharge the PWs because here in WA in the winter we only get 8 hours of daylight (and it's cloudy!). A generator, which I already have, would allow me to have power indefinitely, as long as I can get a propane talk fill-up every so often during the outage.