When the power goes out, immediately wrap your stand alone freezer in several layers of blankets/material. It will stay cold for several days. You will not lose any frozen food.

I did this in Toronto in the blackout of 2003, and didn't lose a thing. Others lost hundreds of dollars worth of expensive food.

In the Atlantic provinces, the old-timers are used to two-story high drifts burying their houses in snowstorms. Heating with oil, their stoves continue heating even without the electric blower fan. Consider buying a propane catalytic or kerosene heater to keep warm.

Thanks to all the good suggestions folks.