A few things.
I have a basement and it needs sump pumps to stay dry. Really inconvenient in Hurricanes and storms, especially at night
I have multiple generators and a transfer switch at the house. We plug in the big wire from the generators (240v) and then turn on those circuits we want. Mainly sump pumps, water and entertainment. Fridges, too.
https://www.bestgenerators.org/240v-generator
You want the 240v plugged into your transfer switch. Easy day. BTW, get a cable that allows you to run the generator outside the garage.
This year was incredible in terms of rain and storms...25 years here and nothing remotely close in terms of rain. The farm is a swamp.
I also live at the end of the trolley line, the last folks to get power restored.
So, after many sleepless nights this year worrying about sump pumps and power outages, I am going with an automatic system next year. I am too old for this crap.
Since a lot of the work has been done, it will be sub 15k for what I want.
I'll also keep the current generators as back-ups.