Need advice about friend moving to cold climate: what to tell her?

My pal is moving to PA from FL and she has rented a cute condo up there, but I fear she is now realizing some problems! The condo community has snow removal, good! But her heat and stove/oven are electric. I made the mistake of asking “what will you do for heat if the power goes out in a snowstorm? You have no fireplace!” She got upset with me. But then she said, I have to figure this out because I’ve never been without gas lines into the house. (Not have I—we had gas when I lived in a snowy climate.)

Can any north-dweller help me explain to her what kind of emergency gear she can buy that will prepare her to be ok in a winter power outage?