Guess that would have to be our new 5,000 watt portable generator. We live off grid, no power company hookup, thank you! The smaller 2,000 watt generator works beautifuly to power this computer, the TV's, lights, etc.--but it's not large enough to run the microwave oven.
With the new beast sitting out in the yard and connected via 100' extension cord, it's a simple matter of meandering out, starting the gennie, cooking a TV dinner for a few minutes, and...turn the gennie off. Definitely labor saving by comparison with the alternative, which was to cook everything on the 2-burner camp stove.