But I'm not sure we have the battery technology to be able to distribute batteries everywhere with enough capacity to stop most power outages. That's quite a different deployment than centralized batteries on the grid. I hope we get there but the energy densities & costs probably are not be good enough - yet.
And if we do manage that, the outages that do happen will only be more severe. Are we going to have power outage drills? If not tons of people will be caught unprepared.