Saskatchewan does not have “off-peak” electricity pricing because Saskatchewan runs our power grid on old Coal plants. So not only does it get cold enough for heat pumps to not be sufficient here (even during the day sometimes), our electricity is not a green option either. Natural gas heating makes more sense here in Saskatchewan and it pains me to say that. Until such time as we get a green grid (get rid of the coal), natural gas heating is the best option for us.
Edit to add: I will gladly continue to pay the carbon tax because of 2 things: 1. I get more back on the rebate than I spend (my provincial premier is full of it) and 2. If some of that money from the tax goes to green initiatives, then I gladly support that.