I have an all electric house and so far (last 20 years) it hasn't been terrible in winter or summer. I have heat contollers in every room, so I can shut down any area not in use. In two years when the rate caps come off, the increase cost in electricity is estimated to be about 60%. Not looking forward to that. A couple of years ago I put in a propane fueled fireplace as auxilliary heat for when the power failed, as it always seem to do during ice and snow storms. The fireplace will run you out of the house in minutes with heat. Last I read they were predicting that electricity would only be going up about 10% over last year. NG is supposed to be up at least 20% and oil at least 40%.

Best bet is you have wood heat and a good size wooded lot. Something I got neither of. Not sure about Idaho though, I think I would prefer Ft Myers. Especially between December and the end of April (no his and her acaines).