What @SimCityAT said!
Any petrol generator needs to be located well away from the house. Even having it under a window opened just enough to pass a cable into the house can let enough carbon monoxide from the exhaust fumes into the room to kill the occupant. It has happened, sadly, and killed entire families using emergency gennies during power cuts. I'm also a bit wary of the flueless bottle gas heaters and cookers and wouldn't use one at all without a good CO monitor. We should all have one if we use wood stoves, too. I'm being a bit naughty at my place as we don't live there full-time yet and I don't bank the fire up to burn overnight while I'm asleep. I just have the little cards with the dot that changes colour located where it's impossible not to notice it. But when we move there full time, a proper CO monitor with an alarm that will wake us if needed is a must!
Our back-up plan for electric outages is wood stoves to keep warm, cook, and heat water (and an outside cooking set up for summer), lots of rechargeable battery lights, power banks to recharge phones and tablets (though in our village the mobile network goes down when the electric does), and a few small solar panels, which angled right can work surprising well even in winter if there's the least bit of sunlight.
And it seems water might be a problem at our place, as we're halfway up the hill. When the pressure drops, our neighbour at the bottom of the hill gets water, we sometimes don't, or just get a trickle. The short term fix is to store lots of 5L and 10L bottles filled with tap water and a few 10L bottles of drinking water, and have a back-up non-flushing toilet. The old outside deep-drop loo is still usable in an emergency, too. The long term fix will be a storage tank that the village water supply can fill when there's enough pressure, and we can switch the house supply to when there's not enough pressure. Also I want to install rain water collection tanks now we have guttering and downpipes. Unfortunately we don't have a well or a spring.
I'm not sure how my husband will cope with outages. I grew up in a country house with lots of quirks. dodgy wiring, and no town water. He's a city boy who expects everything to work at the flick of a switch. We will see.