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well done, chaosmagnet.
Also add to list the need to power medical devices and equipment. Most don't take a great deal of power, but you need long run times and reliability.
bws48,
i have a buddy who comes to visit and stays in our separate tiny solar-powered guest trailer (an old 1960's remodeled campy-looking thing).
he needs a cpap machine and we found that it can run all night on just the solar system consisting of a 100 watt invertor, a 35 watt panel and a deep-cycle golf cart battery.
he can run it as long as he's here, if there's some sun to recharge it each day. (when there isn't, my honda is used to recharge the battery in no-time. or extra batteries could always be added if it was a more serious concern.)
he liked the system so much, he built his own for taking car-camping with his family. in particular they like the fact that there's no noise or smell to bother anyone, unlike the generator he used to use.
something like this might be all that's needed for what you indicated. and its far cheaper to set up than a generator.