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How is my Invoice Calculated?

An invoice generally consists of the following charged items. 

Consumption Charge 

Your consumption is the amount of electricity measured in kWh (kilowatt hours) or hot water measured in kL (kilolitres) based on the meter reads of your property over the invoiced period. 

The consumption charge refers to the cost of your consumption, exclusive of any other charges such as supply charges, postal fees, disconnection, or connection fees. 

This is calculated by multiplying the consumption by the consumption rates of the tariff plan outlined in your Sales of Utility Agreement. 

Supply Charge

The supply charge, also known as the service charge, is a fixed charge for supplying electricity to your premises for each day of the billing period, regardless of how much electricity you use. 

Depending on your area, some hot water invoices may also have supply charge which is the charge for supplying hot water or cooktop gas consumption (flat daily rate). 

The supply charge is calculated by multiplying the daily rate by the number of days your energy is supplied.


Other Fees and Charges

  • Goods and Services Tax (GST) Charge: Fees and charges shown on your invoice include GST where applicable. 
  • Postal Fee: This is also known as an admin fee, which is a charge if you receive paper invoices. 
  • Connection Fee and Disconnection Fee: This is a once off charge for the connection and disconnection of the utility supply when move in or move out of the property or for non-payment or incomplete Sale of Utility Agreement.
  • Payment Processing Fee: Applicable Direct Debit and Credit Card Payment Fee. 
  • Adjustment: Debit adjustments and Credit adjustments can occur for various reasons. You will be informed of the amount and reason when it is applied to your invoice. 

You may be interested in How to read your bill for further information. 



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