I have an electric dehydrator that I use for food storage and preparation, but it is best to have a plan for dehydrating and preserving with no electricity. I like this simple outdoor hanging screen dehydrator. you can dry your foods on a warm day in the sun. You can also buy or make a solar powered dehydrator to use if it's winter. Some of those can double as an oven. In a pinch, a car dashboard is a great dehydration location. even in cooler weather, it gets hot enough inside the car in the dash to dehydrate or even cook!