Just like cell phones trained us to accept downtime that wireline customers the second half of last century would have considered outrageous, smart grids will too—as I said in 2017: What cell phones teach us about the power grid.
“… when the grid is unavailable, appliances and management software will collude to conserve electricity while trying to keep users comfortable and preserve food in the fridge or the charge on a laptop.”
Source: https://wolfliving.tumblr.com/post/670902474742317056/off-the-grid-iot