Tariff component

Tariffs paid by our customers have two main components

  • The basic tariff which comprises a standard cost of fuel and other costs required for electricity supply
  • A Fuel Cost Adjustment to customers to cover any fuel costs above or below the standard cost of fuel already included in the basic tariff

Customers pay the Fuel Cost Adjustment for each unit of energy they use on their bills.


Example of fuel costs not included in basic tariff calculation

Fuel costs
September 2013   


Total fuel costs

(a) $902m

Fuel costs
included in basic tariff*  

(b) $315m  

Fuel costs
not included in basic tariff 

(c) $587m 

* Part of the fuel costs already collected through basic tariff at a standard rate of $700/44GJ.


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