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Electric Vehicle Add On

What you need to know

By charging your EV during the Overnight or Super Off Peak time periods, you could save on your electricity costs.

As a time of use plan, the EV Add On has five daily time periods that have four different electricity charges for your electricity use, which could result in cost savings if you can shift your electricity use from the Peak time period.

There are five time periods that apply each day:

Overnight (11pm to 6am)
Take advantage of the second lowest rate for          electricity by shifting the time you charge your EV to during this period.
Peak (3pm to 9pm)
Where possible avoid or use less electricity during this time as it has a higher rate.
Super Off Peak (9am to 3pm)
You could save by shifting your electricity use to this period, which offers the lowest electricity charge.
Off Peak (6am to 9am / 9pm to 11pm)
These two time periods offer a rate between the Peak, Overnight and Super Off Peak rates.
Item Price inc. GST
Supply charge 123.0000 cents per day
Peak electricity charge 51.2500 cents per unit
Super Off Peak electricity charge 8.2000 cents per unit
Overnight electricity charge 18.4500 cents per unit
Off Peak electricity charge 22.5500 cents per unit

Calculating your cost

The EV Add On has a lower electricity charge rate than the standard residential Home Plan (A1) tariff during the Overnight, Super Off Peak and Off Peak periods, so be sure to switch the charging time of your EV to these times if you can.

A time of use meter records the amount of electricity and the time of day electricity is used. The electricity charge applicable varies depending on the time period during which the electricity is used.

More information on the EV Add On can be found in the Help & advice section for information and FAQs on electricity.

Other fees & charges, including meter prices

Other fees and charges may apply, including charges for upgrading or reprogramming your meter.

Building a new home?

For customers building a new home where electricity has not yet been connected, please discuss the most suitable type of meter for you with your electrical contractor or builder to make sure they install the most suitable meter for your needs. 

New Home Meter Prices   apply when you are building a new home and electricity is not connected.

Fees & charges Price inc. GST
Meter reconfiguration fee $ 101.30
Meter reconfiguration fee - remote $ 39.90
Meter testing fee $ 340.40
Meter testing fee Concession $ 144.00
Special meter reading fee $ 27.90
Special meter reading fee - remote $ 15.80
Meter upgrade fee $ 101.30
Don't forget the small print

Prices are subject to change from time to time and other fees and charges may also apply. Unless otherwise stated, all prices include GST and are effective at 1 July 2023. By law we calculate our prices to four decimal places. Electricity is charged by the 'unit'. A 'unit' is one kilowatt-hour (kWh).

The supply charge is the daily fixed charge element of the EV Add On which applies irrespective of how much electricity you consume.


If your supply address is located in a suburb where Advanced Metering Infrastructure (AMI) is available, to be eligible for the Electric Vehicle Add On plan you must have an Advanced Meter. If AMI is not currently available in your suburb but becomes available at any time in the future, you will be required to upgrade your meter to an Advanced Meter to remain eligible for this plan. Customers on this plan who elect to ‘opt-out’ of AMI and do not upgrade their meter will be reverted to the Synergy Home Plan (A1).

Eligibility Criteria

Compatible with
Green energy

Green Energy

Reduce your carbon footprint and purchase some of your energy via renewable sources.

Green energy options

EV Add On FAQs

Want to learn more about EV Add On? Take a look at our helpful and comprehensive list of FAQs.

Are EVs really the future?
It certainly looks like it! Volvo has been only making EVs since 2019  and some countries in the world have announced they will be banning petrol cars at some point in the future . In Norway, petrol cars could be banned as early as 2025.

According to a white paper from Advisian, cited on the Electric Vehicles Council website, “the benefits EVs offer consumers will be the main reason for their uptake and we can expect more than four million EVs on Australian roads by 2035.”

In the coming years, it is likely the price of batteries will drop and the number of EV models available in Australia will increase. It’s possible that government and industry support will encourage more drivers to choose EVs through initiatives such as offering rebates, special tariffs and better infrastructure.
Read more
Can I sign up for the EV Add On Plan if I am renting my property?
Yes. Although we recommend you check with your landlord before signing up in case changes to  the meter at the property are required.
Do EVs cost more than other cars?

Yes at the moment if you compare the upfront cost. When you compare the purchase price of an EV against a similar model of petrol-fuelled car, the electric version will generally cost more. This is likely to change over the coming years as car and battery companies scale up their production, improve their efficiencies and competition increases in the growing EV market.

The good news is that the running costs of an EV are generally less than petrol cars. EVs don’t need an oil change and a lot of other maintenance that a petrol or diesel engine needs. Charging at public stations can be free or just require a small fee.  You could also take advantage of our EV Add On Plan and charge your EV during the Overnight or Super Off Peak time period.

How far can an EV drive?

According to the Electric Vehicle Council, the average distance an EV can drive on one charge (based on the models currently available in Australia) is more than five hours, non-stop. That’s more than most of us need to drive around in one day.

Every model has a different driving range, between 130km to more than 600km in one charge for some of the luxury models. It’s getting even easier to charge your EV in Perth with more charging stations popping up around our metro and regional areas. It’s also good to remember that your EV is probably parked for a lot more hours than it is actually driving, which gives you plenty of time to top up your EV’s battery charge.

How long does it take to charge an electric vehicle?

Charging time depends on the model of the EV. For most EVs, you could expect that it would be charged to at least 80% (often the ideal battery capacity)   if you charged it overnight.

For topping up the battery on the road, DC fast chargers or super chargers are the quickest option. Depending on the EV model, these can provide a driving range boost of up to 250km in just half an hour. 

My vehicle is electric but I don’t need to plug it in. Am I eligible?
No. If you own a hybrid electric car,  with an internal combustion engine which produces electricity (like the Toyota Prius), then unfortunately you are not eligible for the EV Add On. Only residential customers with vehicles which plug into an electricity socket are eligible.
Why do I need a time of use meter to access the EV Add On?
The EV Add On is a time of use product. A time of use meter records both the amount of electricity and what time of day the electricity is used. The electricity charge applicable varies depending on the time period during which the electricity is used.
Why do I need to provide my EV registration details for the application?
Synergy EV Add On is available for residential customers who have a plug-in electric vehicle registered at their premises with the Western Australian Department of Transport. The name and address on the vehicle registration must match the name and address on the Synergy account.

Connect today with EV Add On

Apply for this plan

It's easy to apply for the EV Add On online and takes only a few minutes. Just have a copy of your bill details and  vehicle registration handy...

Apply for this plan

If your application is accepted, if required Western Power will come to your property to reprogram or replace your meter so it's compatible with the EV Add On. A meter installation fee or meter reprogramming fee may apply.

And, if the EV Add On isn't working for you, you can switch back to a Synergy Home Plan® or any other standard price offered by Synergy that you are eligible for at anytime.