All electric?
That didn't work for Texans when the blizzard paid them a visit and the electricity went off.
They were chopping up their furniture for firewood.
Moral of the story:
"Never rely on one source of energy for:
1. Heating
2. Cooking
3. Cooling "
A stack of firewood, some newspapers, an axe, and some matches and gas lighters...and heating and cooking are taken care of.
Available, reliable, and affordable.