An interesting article but you ’V Omitted Something in Regard to Water Heating Tariffs in Tasmania. The options are:

　　

　　1. OFF-Peak Tariff 62 Which is supporting Overnight only.

　　2. OFF-Peak Tariff 61 Which Is SUPPLIED OVERNIGHT Plus Also 2.5 Home in the Afternoon.

　　So a Standard 250 Litre / 3.6 KW is Fine). This is by face the most compommon means of heating water in tas and the count is 16.819 center / kwh.

　　Very Easily Met Conditions. The Price for this rate is 25.9 CentS / KWH But as I said, Practical Nobody Heats WATER This Way in Tas.

　　So Your "Third Cheapest" Option in TAS Should Be Tariff 41 AT 16.819 Center / KWH and Not Tariff 31 Which You Have user.

　　6 Hours, and the Night Period Both IndiDually Being Sufficient to Heat A Completely Cold HWS TO 70+ Degrees so is back.

　　Water, At Under 17 CentS / KWH).