During a natural disaster or simple power outage, the loss of electricity can last for long periods of time. You might go without hot water, a cold refrigerator/freezer, and simply lighting after the sun goes down. But, if you have solar panels, you can avoid many of the problems. The trick is affording them in the first place.
There are ways you can get solar panels for free, or at least much cheaper than their current retail price. But you’ll need to do a bit of homework.