Hi Tanman
A couple of thoughts for you:
Firstly, you know what it's like using electricity across a 24-hour period: During the day maybe only the fridge is running; then the kids come home from school and every damn appliance in the place fires up; then you go off to bed later and it's back to the fridge and a couple of night-lights
If you have, say, a 6 or 8HP "Lister" diesel with, maybe, a 5kW generator head making power - it won't like that. The diesel likes to work, not to idle - and it won't reward you with clean running if it idles lots. But it's a pain in the ass starting it, running it for a half hour and turning it off - that's no the answer either.
So - a lot of folks have a battery bank + inverter with, normally, a solar array keeping it charged . . .
Then - if you have, say, your Lister with a 110VAC generator head and, maybe a 24VDC alternator both attached to it, you can run it under DC load to charge the battery bank when you are using lots of electricity or if the sun hasn't been shining - good steady loading and it will like that. Plus, if you want a big AC load that your inverter won't enjoy (maybe you want to use the welder, or the big 9" angle grinder) then you can fire up the Lister and use the 110VAC off it - and it'll probably put a bit of DC into the batteries at the same time, maybe
I'm just generalising here, but you get the idea:
If you have, say, a 6kVA Honda inverter/generator with a little 12HP Honda engine (one of those "silent" thingies) it will run all day and all night - within limits - and it won't care if it's loaded or idling
If you have a "Lister" or a "clone" - it won't like that duty
(most folks here will have a $500 Honda or Chinese Honda clone generator for convenience + backup anyway, I would think)
FWIW I reckon you ought to check out a guy on here called "Starfire". He's an old dude, an electrical engineer type, who has a solar-plus-Lister setup and has been off grid for decades. he has already made, and learned from, every mistake you or I will ever make on our journey to "off grid"
Just search for posts from "Starfire" and you will see all sorts of insightful comments around his topics from the other knowledgeable folks on here
Just my $0.02
Cheers, Mike