If I may make a suggestion: get an inverter that has a "no output" or "zero report" option. If you put power onto the grid so that the utility has to buy power from you when you have excess power, you technically become a "power generating customer". That makes you subject to more regulations -- one of which is that your solar system has to shut off whenever grid power goes down. My solar system doesn't put power onto the grid (my way of avoiding the large solar fee I'd be charged each month just so my power utility could buy my excess power for pennies). Because of that my system powers most of my house when the grid goes down, which isn't often. I live in Alabama where the power is pretty dependable, not 3rd world countries like California.
It will be a totally off-grid system.