OK, let's cook it a bit.
First, this is summer in Aus, right? People in the northern hemisphere need to know that first.
Second, if you are all electric (heating/cooling/cooking, right?), what is the source for electric power generation in Aus. Is it native coal--e.g., Newcastle? Do you folks have nuclear? I feel pretty sure that you have little hydro, but how much wind/solar do you folks have as a piece of the electricity pie?
I have no problems with this, but cheap electricity means either subsidies or cheap energy sources. Now you've gone and made it interesting...