Yes but you can't really buy generators with more than 22kw and even that is plenty to run the AC for a 5500 sq ft home with plenty of breathing room to run the electric washer/dryer
Oh of course you can buy generators that will run the utility circuit of a nuclear power plant, they need to come from somewhere. Somebody will sell you one. I have not personally seen a residential generator larger than 22.5kw when searching for homes in hurricane country. This is in response to a guy saying he has a giant 30+kw generator for his home, which would be... extremely unusual unless he was also running an off grid welding shop or something equally unlikely