Our electrical grid is archaic.
The technology of our grid is over a century old.

There is no current technology when we are talking about our electrical grid.
Stuff that was thought up in the 50's, and written about in the 70's still isn't used.

We don't even have Tesla Coil lighting? Completely make mercury filled fluorescent lighting as one the stupidest ideas man has made up to kill himself. With the mosfet, they could be mass produced, saving energy and making lighting so much better. Well, now we have LEDs, but still, 100 years, and no one made them to market.

The thing you really need in the power outage is something to run the freezer. A small generator is a good way to go. Just run it a couple times per day, as long as you aren't opening it.

And then I could go on to why haven't we switched to 400 Hz electricity yet? It saves so much in transmission costs and transformer sizes. Sigh.

Keep preparing to be comfortable when the lights go out.