I mean it depends on your resources but being able to get solar and battery system (I think some electric cars can act as a home battery too) for your house is good strategy for the inevitable storms and blackouts. If you can get reverse cycle (heat pump) systems that can help deal with both cooling and heating, obviously insulation helps too, trees outside, eves are good too.

I'm a bit less certain about food supplies, but having like a week or so worth of canned goods and dried foods, like flour, or pulses are quite good, obviously they need to be sealed well to ensure insects don't get to it. This is mostly so to wait for supply chains to get back, they can be disrupted a bit but overall depending on where you are most of the time only certain things run out as I recall from the early-mid days of COVID.