Ref the last bit ... This is one reason why I opted for a large battery bank and a gasless setup.
You can't run laptops, monitors, printers etc on gas, just like you cannot run power tools on gas (maybe needed if doing any kind of mobile conversion work), so you end up with a sizeable battery bank (in my case 645Ah of AGM battery, upgraded from the initial 440/380Ah AGM bank due to opportunity).
And as that battery bank is always there in order to provide on-demand ad-hoc use, may as well take advantage of it to provide cooking, (water) heating and (food) cooling for the 90%+ time it is not needed for work use.
I have a generator for 'emergency' use also. I used it yesterday as it happens (run it once a month just to exercise it). Ran it for 2 hours, consumed - I am estimating - around £1.50 worth of petrol and put 175Ah of energy back into the battery bank in that time (took it from 55% to 81%). Whilst that £1.50 is expensive compared to plugging into a domestic socket, it is more cost effective than having a massive solar panel bank so as to get a charge in the wintertime or having to go to a campsite purely to get access to a hookup.