a good idea, depending on volume, if you can get 1kW out of it, it'll be enough for the time being, but the real question is whether you need to have
115 or 230 volts (depending on location) or not. low volage DC is good enough for many applications (remember your PC is running on 5 and 12V,
internally) and can be stored in every old car battery and, as a bonus, LED lighting could be used directly. the downside is that you'll be unable
to use most power tools, but it's imho obvious that these are useless anyway, in situation X.
if you really want a solar power plant, i advise you to take a look at stirling engines
www.abovetopsecret.com...
the engine itself is rather small and could be carried without too much of a hassle, but if you go that route, you must be able to reliably assemble a
reflector dish (using metal foil, for which you'll need spares in case of hail or storm damage).
either way, minimize your needs, use the smallest possible unit and be aware that a Stirling engine can be run off any source of heat as long as you
keep the works clean.