A gas powered generator would do a couple things
1. Provide PLENTY of power.
2. Charge a battery or two or three or four.
...3 Attract the attention of neighbors who have done nothing to prep themselves, but who will now feel entitled to share what you have.
Liberals are like a "Slinky". Totally useless, but somehow ya can't help but smile when you see one tumble down a flight of stairs!