Oh, that's too bad ! Do you know when the power will be back on ? A few hand warmers can work in a pinch, but they get REALLY hot , so like was mentioned you need to wrap it so there's absolutely no chance that it will come in contact with her belly , especially since she has a wound. Do you have a trustworthy friend that you can take her to for the time being that lives nearby ? Someone who won't fool around + handle her, but just provide a warm home ? Or temporarily give her to a reptile rescue ? She needs a nice warm environment to heal now. A day or two won't be so bad, but any longer may cause her immune system to become weaker. I hope your power comes back on soon. Take care !