Ideologues cannot sustain a police state, because they'll be far too busy purity-spiraling to keep popular revolts from fucking up infrastructure. No matter how far you extrapolate current technology, there's no avoiding the fact one madman with an axe and a map of power plants can seriously threaten a major city unless flawlessly watched out for.
Omnipresent surveillance means nothing if you cannot maintain any means of capitalizing on it. And we do not yet have the basic kind of technology to automate that. If the absurdity you're doomsaying about is tried without truly new tech, it will implode like all central planning in history has, for the same reason that the people in charge do not know how everything works.
Take a look at the estimates of what it'd take to switch to electric cars. That's a small part of the energy demands of what you're suggesting, and not a single major city on Earth can remotely plausibly handle it, before ideological retardation purges fossil fuel central generation. Take a look at California's energy instability, and realize those are the people you're worried about.