Single phase vs three phase power supply when installing an EV charger at home.

ev installations_ev charging at home

Electric vehicle chargers require a power supply to charge your vehicle. This power supply can either be what is called single phase or three phase power. When it comes to EV charging the most important difference to understand between the two is how fast they can charge your vehicle. 

Single phase will typically get you around 7.4 kilowatts (kW) power supply which is around 40km of range per hour of charging. 

Three phase will get you around 22kW power supply which is around 120km of range per hour of charging. Around three times faster than single phase.

Residential EV Installations

There are a few things you need to consider when installing an Electric Vehicle Charger into your residence;

  • Is your power supply single phase or three phase?

    We need to understand whether your home has single-phase or three-phase power. The majority of homes are connected to single-phase power so you most likely will have single phase however if you don’t know what power supply you have you will need to find out. You can call us and we can talk you through how to find out. Alternatively, you can contact your local electrician.

  • Do you need a single-phase or three-phase charger?

    The power supply you have will dictate the charger you get – either a single phase or three phase compatible charger. You will need to know what power supply you have in order to select the right charger. Again, most households have single-phase power so you most likely will have the same but you will need to confirm it before choosing a charger.

  • My home is single phase. Is that enough power for EV charging? 

    For most people’s driving and charging habits, single phase charging is sufficient. With a single phase charger, you can charge your car for 8 hours and get approximately 320km of range. The average Australian drives around 40km a day, meaning one charge would last you 8 days before you would need to charge again. As well as this, electric vehicles’ ranges are getting larger as technology advances meaning they require less charging. Plus more fast chargers (also known as DC chargers) are being installed around the country meaning you can always charge your car using three-phase power at one of these fast chargers. A common scenario would be charging your car at home the majority of the time and then if you want a fast top up you could charge at a fast charging station.

  • My home is single phase but I want faster charging, what do I need to do?

    If you did decide you wanted faster charging at home you would need to upgrade your single phase power to three phase power. To do this you would need to engage in a Level 2 Electrician to upgrade your power supply. A general electrician will not be able to complete this work as it involves connecting power from the grid which requires Level 2 qualification. Once your power had been upgraded you would then engage with EV Installations to install the Electric Vehicle Charger. As mentioned earlier, single phase is generally enough power for the average persons driving and charging habits so it is unlikely you would need to upgrade to three phase power.

Summary

The majority of homes have single phase power which is sufficient for charging electric vehicles. If you wanted to have three phase power in your home you would need to engage a Level 2 electrician to complete the work before engaging an installer to install your EV charger. If you are unsure of what power supply you have give our team a call and we can help you to figure it out. If you already know what power supply you have you can book a set price installation below. You can choose our installation only package and BYO charger or you can choose our installation plus charger package where we will supply the charger. If you want to learn more about our EV residential offering click here.

If you would like to get in touch to discuss your residential installation, contact us using the below form.

Share this article
Facebook
Twitter
LinkedIn
Email
Get notified of the latest EV news.
evinstallations_logo_white

Your EV Installation specialists. Contact us to discuss your specific requirements.

Get in touch

Give us a call or complete the form below and a member of our team will be in touch to discuss your requirements. 

Download our commercial brochure

Complete the form and we will email you our commercial brochure.

Download your guide

Complete the form and we will email your complete guide for retrofitting existing buildings’ for EV.

Request a quote

An EV Feasibility Study is the first step in getting your building EV ready. Complete the form below and a member of our team will be in touch to confirm your requirements and provide a quote.

evinstallations_logo_white

Nullam quis risus eget urna mollis ornare vel eu leo. Aenean lacinia bibendum nulla sed 

Subscribe to our newsletter

Sign up to receive updates, promotions, and sneak peaks of upcoming products. Plus 20% off your next order.

Promotion nulla vitae elit libero a pharetra augue

Nullam quis risus eget urna mollis ornare vel eu leo. Aenean lacinia bibendum nulla sed