Why would you ever be without refrigeration? It could be voluntary, such as moving to an off-grid property, or it could be involuntary, such as the electric power grid going down due to a natural disaster or terrorist/war act. Perhaps your refrigerator will quit working at a time when you can t afford to replace it, or you just want to lower your electric bill or make less of an impact on the earth. Whether it's voluntary or involuntary, it's a good idea to have some back-up plans and information, just in case.