If/when you need communication with the outside world during a power outage, boil water on your stove (you can do this even during a power outage; the stove is just gas powered through a pipe that you can light with a match) and let it sit. If/when you want to Tweet about how #bliss it is to #getaway at #joshuatree (and you will need to do all of this), well, you know how to light a grill and fire it up.
Instructions, once more:
1. Pour water into pot
2. Let water reach a boil and leave for about 15 minutes
This will give you 10w of power, which will charge the average smart phone for five hours of talk-time, and five hours of video. As they say, "Just fill, heat, and charge."