Legislate the suppliers to only charge one rate for 1kWh on the bill. The more we use the higher the rates go, also introduce monthly billing, my supplier does.
Federal Govt to legislate new billing rule to charge one price for a 1kWh with monthly bills. My last supplier had 4 levels and the new one has 2. If you fill you car up with fuel it is the same price per litre no matter how much you buy, power (1kWh) should be the same.