Q: Can the SolarEdge EV Charging battery be integrated with house storage batteries?
A: Good question that will have to wait until someone tries it. I don’t see why it would not AC couple as well as other grid tie inverters. The EV battery cannot be used to power anything through the inverter.
Q: Are any of the manufacturers looking at designing a system that will take you from grid-tie to off-grid?
A: Most grid-tie battery inverters will do this. Only the StorEdge and SkyBox can be installed without a battery though.