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This one.
After living in a 17 foot trailer for 6 years, never any running water, and no hydro for the last 3 years I learned a few things.
I see nothing here to argue with, and learned some stuff as well
- my turn to share.
I had a small solar panel system, 3 - 15 watt panels and 2 deep-cycle batteries (one would suffice with a larger charging/panel system).
I had 12 volt LEDs for lighting, and some 12 volt fans from computers I installed on the end of large tomato juice cans, lay them on my cook stove when enough hydro available to circulate the heat. Hang the fan end off the edge of the stove with it sucking the heat off the stove into the room - computer fans are 12 volt - old desktops are readily available - and fans can be bought new for around $5-6 on line.
I now have a regular home - hydro and all that, but a recent power outage prompted me to revive my old habits - saving water in empty jugs (drinking water should be kept out of light - even artificial light, so my drinking water is kept in the back of the cupboards underneath my kitchen counters). Presently have 5 gallons drinking water, and 30 gallons rainwater tucked away inside my home.
I have a 7500 Watt generator back-up system, but cost of gasoline would prevent me from running it for extended periods - so it would only be used sporadically (recharge my batteries, run well pump to recharge tanks etc.,)
Also have two deep cycle batteries, and 2 inverters (makes 110 Volts)
Even one deep-cycle battery with an inverter would be more than enough to run your gas oven - it only needs about a minute of 110 to heat up that thermocouple that lights your oven 
Also, 110 is handy to recharge laptops, watch a bit of tv (a very small bit), but a larger solar/inverter system would be needed for fridges, freezers etc.
OH - how do I know about the gas range? - Funny story that -
During the purchase of the property and house, owner felt obligated to tell me that the house had a gas range, but the oven didn't work. Gas range is 8 years old - turned it on - nothing happened. Pulled the drawer out of the bottom, there was a brand new broiler pan in there (bottom "drawer" is really a broiler!) - everything, including the oven was as clean as new.
Tried to light the pilot, nothing.
Being a curious old mechanic I found and downloaded the manual for it, seeing what I needed to repair it - hmm - durn thing is electric - gotta wait 45+ seconds - so - waited - 55 seconds later - "whomp!" it lit.
Oven's gettin' dirty now - - 
Have an airtight woodstove in my home here with 2 EcoFans on top - the heat of the stove creates electricity that turns the fans.
http://www.youtube.com/watch?feature=player_detailpage&v=Wqw-Rw70Euw
Also, I have a propane wall heater, and over 1200# of propane. Wall heater runs off a hydro powered thermostat -- trying to find a battery operated one, but the pilot will run without hydro - and it puts out a fair bit of heat on it's own.
Bought and installed a direct vent (mounts on an outside wall - no chimney required) propane heater in one of the rooms furthest from the wood-stove - no hydro needed - 2 holes to the outside - voila - done deal.
My first winter in my new home - very busy, so bought cordwood for this winter - over 25 acres of woodland here, so will putter around slowly replenishing what I burn - most likely never have to buy another stick.
Have a snow plow, snow-blower, and a snow shovel.
OK winter - bring it on . .
I'm ready!
CC
ps: good thread! 
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