Hey bro! If i got it right you only wanna store it, the bud's will already be dry @ that point, right? You could use a little fridge for storing, no need to be near electricity as you only wanna use it for its isolation that should keep the temps a lot above exterior temps. You can also use styrofoam to isolate a larger box or container (keep in mind that the styrofoam takes some space away if placed on the inside of the container).