Yes I understand you need a converter to hook up with the grid, but I don’t think you need batteries unless you want to go strictly solar.
When they do a solar installation in a home with on the grid there are no batteries involved.
“When they do a solar installation in a home with on the grid there are no batteries involved.”
Right, and you can sell power back to the utilities at high daytime rates if you’re out of the house and set the AC high enough...
These might make a nice option for south-facing windows, to boost solar output a bit from square footage that otherwise would produce nothing. It’s also possible they could get efficiency over 4% down the road.