Sorry for the delayed response. We run a Predator 8750 portable here at the house. It can be set up with a transfer switch to run the majority of the house, but we've not done that just yet.
We did fine running a couple of 10-gauge power cords to our indoor fridge, outdoor fridge and freezers, a couple strings of white LED Christmas lights for nighttime illumination, and a portable A/C unit. We have a gas stove and a Zippo, so we'd have been able to cook as much as we wished, had the blackout lasted longer.