My sister's and my house are about the same size, the same age and in the same city. She's total electric, I'm not. She has $250 electric bills in the summer. Mine have never been more than $170 or so and since I got my new system they are rarely over $110. She got a whole new state of the art central system year before last. I told her not to buy a heat pump, but she didn't listen. I told her to use the extra money and have a plumber run a gas line but she didn't listen. Last winter she was hating on that heat pump pretty hard when it was blowing cold air while heating her house. Yes it does have the electric heating strips for real cold weather.I hate the delivery fee I used 3 dollars worth of gas and got charged 25 for delivery.
If I could set it up I would use a portable CNG tank and fill it myself.. but reducing pressure to 1/2 PSI to work in my water heater or furnace.
Friend of mine went all electric and saved money. said natural gas went up in the cold months and electric went down.
I went electric dryer and man that thing dries super quick and did not notice it on electric bill.
Bottom line is when I'm paying $50 to $60 electric bills in the winter she's still paying way past $100. I'm still paying $40 to $140 per month less than her for both my electric and gas bills. It's been this way for years and I've never paid more than her. It's not even arguable, NG saves a ton of money.