Interestingly enough, Powerwall is the only product I know and heard of, which can do grid disconnect and reconnect out of the box.

Unfortunate for this particular product (i do not like tesla anymore), i also never heard anything about it after that one Musk presentation infront of a house with tesla roof.

But if your ecosystem is Tesla (before Musk), the synergy would definitly be very nice.

'Just because' lucky enough some people do not mind investing money into beauty.