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How to read your electricity bill

Electricity bills can be confusing and sometimes understanding them can be exhausting. However, making sense of your electricity bill is simple and easy, just use the image below to understand the various components of the bill . If you are a Home owner in Western Australia, then you probably are on Synergy Home Plan (A1) tariff, which is shown in the graphical image below. The image below shows the electricity usage (number of electricity units that you have consumed) which is off set by the the electricity exported back into the grid via the Synergy Buy Back Scheme ( number of electricity units that you have sold to Synergy). This results in a lower bill !

Please note: your bill does NOT include the units your home has consumed from your solar power system during the billing period. Your bill only shows the amount of surplus energy sent to the grid.

If you still need assistance, please complete the contact form here.

Electricity bill checklist

  1. Estimated meter reads vs actual reads 

Considering the case where your previous bill was based on an ‘Estimated reading’ and your new bill is based on an actual reading. A variation in the bill may occur to account for the difference between the estimated and actual readings. If you used more energy than was estimated, the additional energy usage will be included on your new bill, resulting in a higher than usual bill. To find out if your bill is an estimated reading, look for ‘Estimated reading’ written on your bill. If the words ‘Estimated reading’ are not written on the statement, your bill is based on an actual meter reading.

2. Has your meter recently been changed

It is possible you had an old analogue meter before your solar system was installed. In such a case, your meter would have been changed to the new bi-directional meter.  The analogue meter is prone to more faults. The new technology bi-directional meter is more accurate and reliable and there could therefore be a change in billing.

3. Changes in your energy use due to weather

During extreme hot or cold weather, the heating and cooling systems in your house will work for longer duration and consume higher energy.  This would result in higher energy bills.

4. Number of appliances in use

Energy usage also depends on the number of appliances being used.  Old or faulty appliances can use up more energy than new or well maintained ones. You could review your appliance usage and their energy consumption and optimize the same to reduce your energy bill.

5. Changes to your household size

If the number of people living in the house increases the energy consumption also increases although there may be no direct correlation between number of people and energy usage. Similarly, if people are at home for longer hours than usual, energy consumption will again increase. 

6. Check your meter number is correct

If your meter has been changed recently it can be a good idea to check that the meter number printed on your bill is the same as the meter at your house.

7. Check how many days are in the billing period

If you have changed your billing period from monthly to quarterly then your bill would be higher to reflect the increased  number of days billed.


If you still need assistance, please complete the contact form here.

How to ensure you are receiving your Renewable Energy Buyback Scheme (REBS) credit

To ensure your Renewable Energy Buyback Scheme (REBS) or Feed in Tariff application has been successfully processed by your electricity company, please check that your most recent bill shows a credited renewable energy payment.

For homes in Western Australia, you can find your REBS credited payment on the back of your Synergy bill, along with a detailed breakdown of your charges and deductions.

Please note, you will only be eligible for REBS if you have a 5kW inverter or smaller.

If you’re eligible to receive a REBS payment but are unable to locate this on your bill, we suggest calling Synergy to discuss why you haven’t received it yet. You should also check you haven’t received an estimated reading, as this will prevent you from receiving your first REBS payment. There could be several reasons why your bill was estimated, so it’s best you contact Synergy to assist you further. If Synergy is unable to resolve your problem, you can lodge a case through our contact form here.

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