Comment it's also for stability (Score 1) 41
I have a home full of expensive electronics and live in a rural county in the US Midwest where weather is an issue. I'd much rather have the external feed trickle-charging batteries that steady-supply my home, than be vulnerable to the spiky local power during weather events.
I sort if wonder in a complete amateur sense if this might herald a "ac for distribution, dc microgrid in homes" evolution.