Barring a sudden but protracted scenario like an all-out-embargo that fuels (pun intended) my crazy post-apocalyptic gas war fantasies following massive heated

Barring a sudden but protracted scenario like an all-out-embargo that fuels (pun intended) my crazy post-apocalyptic gas war fantasies following massive heated social turmoil of the cold rabble boiling with rage, I anticipate minor problems for the grid, to which millions of electric heaters are suddenly connected. And although electric heaters are child's play to produce, I have my doubts about rapid implementation. Of course, I already have two of them. One in the basement, one in my garden shed. And a small portable power station, nothing fancy.