In Australia, the standard 32 amp, 400 volt three phase plug and socket is the preferred choice for charging electric vehicles (EVs). However, there is a growing need for a more widespread charging infrastructure. Installing an EV charging station is a practical and cost-effective solution, especially for those who are not planning to buy an EV right away but want to future-proof their home or garage.
With the growing popularity of electric vehicles, charging stations are expected to be available in all car parks. This would allow EV owners to easily charge their vehicles anywhere. Additionally, new construction projects would benefit from wiring to the garage with an outlet as the termination point for EV charging.
Some electric vehicle chargers, such as the Fronius Wattpilot Go, have a plug, meaning they can be installed simply by simply plugging them into an outlet. This eliminates the need for costly wall installation of Electric Vehicle Power Supply Units (EVSE). It also allows for easy removal and repair of broken equipment without the need for an electrician.
Queensland has some limitations on the maximum charging capacity of EV chargers on single-phase supplies. However, it has been pointed out that installing a 32 amp socket in a garage is not specifically prohibited and it is up to the end user to decide whether to connect an electric vehicle and possibly exceed the regulated charging capacity.
Although electricians often install insulators for electric vehicle chargers, Australian Standard AS3000 does not technically require this. However, the use of an isolator can be useful for maintenance and safety reasons, as well as to comply with some maintenance codes that recommend obtaining grid approval before switching on a 20 amp load.
With the proliferation of electric vehicles and their larger batteries, traditional 10 amp plugs for charging may no longer be sufficient. Most full electric vehicles in Australia are likely to use CCS connections and charge at a higher voltage and current, for example 32 amps and 7 kW single phase or 11 to 16 kW three phase. This allows for faster charging and convenient charging during periods of extreme low power or solar availability.
In summary, the future of EV charging in Australia depends on the ubiquitous availability of sockets. This makes charging convenient, cost-effective and easily accessible for all electric vehicle owners. As the demand for electric vehicles continues to grow, it is important to consider the infrastructure needed to support this transition to cleaner modes of transportation.