Interesting! With introduction of new technology comes a whole host of new challenges. I would think there are many effective solutions for backup and quick recovery. These are used in many industries. Why are they not being used for EMR?

Hi Suzy, I just saw your post. Sorry this is coming after so much time.... There is quite a selection available for portable camping generators. Inverter generators are probably your best bet. They are very popular because of their low noise levels, high fuel efficiency and relatively light weight making them easy to transport. Also, inverter technology is safe for sensitive electronics like computers and smartphones. You can find some reviews on some of the more popular ones at http://realpreparedness.com/camping-generator/. Best of luck with your search.