Short answer
Most Sydney homes need a 7kW single-phase wallbox: it matches the AC limit of many EVs and refills a typical car overnight. Choose 11kW only if you have three-phase power and your car accepts it, add smart features if you have solar or a time-of-use tariff, and pick tethered for everyday convenience.
Key takeaways
- Your car's onboard AC limit and your home's supply cap the speed any charger can deliver, so check them first.
- A 7kW single-phase wallbox suits most Sydney homes and refills most EVs overnight.
- Pay for smart features when you have solar, a time-of-use plan, two EVs or strata requirements.
- A common mistake is oversizing: a 22kW unit charges a 7kW car no faster.
Choosing an EV charger feels harder than it is because shops lead with brands, features and big kilowatt numbers. In practice, a handful of facts about your car, your home and your routine decide almost everything, and once you know them the shortlist gets very short. Work through the questions below in order, then use the decision table to check your answer. If you want the full specs of each charger category alongside, keep our EV charger types and decision guide open in another tab.
Start with your car and your power supply
These two questions set hard limits. No charger, however expensive, can charge faster than either of them allows.
What can your car accept?
Look up your car's maximum AC charging rate. The onboard charger inside the car caps AC charging, and many popular EVs accept 7kW or 11kW. For example, Australian-delivered Tesla Model 3 and Model Y cars take up to 11kW from a three-phase supply, and the BYD Atto 3 tops out at 7kW.
Then check the charging inlet. Almost every EV sold new in Australia uses Type 2 for AC, so connector choice is rarely a problem. If you have an older or imported car with a Type 1 inlet, or you expect several different cars to use the charger, an untethered unit with the right cable is the flexible option. Our guide to whether all charging points are the same covers connectors in detail.
Is your home single-phase or three-phase?
Most Sydney homes are single-phase, which supports a charger of up to about 7.4kW. That is enough to fully recharge most EVs overnight. Three-phase is only needed to go beyond that at home.
A three-pole main switch in your switchboard usually means three-phase, but the easiest way to be sure is to send us a photo of your switchboard and meter box. Upgrading from single to three-phase involves your network operator, Level 2 ASP work on the service and metering, and often a switchboard upgrade, so it can cost several thousand dollars. EV Install does not do that work itself: we coordinate it through trusted, fully licensed Level 2 ASP partner electricians when it is genuinely worth it. Read whether you need three-phase power for an EV charger before you assume you do.
Then look at how you drive and live
How far do you drive, and how long is the car parked?
Speed matters less than most people expect. A 7kW charger adds about 30 to 45km of range per hour, so a 60km day of driving is replaced in roughly 1.5 to 2 hours. Even a portable cable in a 10A power point, at about 10 to 15km per hour, would replace it in 4 to 6 hours overnight. Faster charging only pays off if you cover long distances daily, have short turnarounds at home, or share the car between drivers.
Do you have solar, or plan to?
If the car is often home during the day, a solar-aware charger can soak up surplus rooftop power that would otherwise be exported. These units use a current sensor (CT clamp) at the main switchboard to follow your export and adjust the charging rate. One catch: chargers cannot run below about 6A, which is about 1.4kW on single-phase but about 4.1kW on three-phase, so solar-only charging on three-phase needs more surplus unless the charger can switch phases automatically. Our guide to the best EV charging options for home solar goes deeper.
Tethered or untethered, and where will it go?
Tethered chargers have a fixed cable and are the most convenient for daily use. Untethered units have a socket, so you plug in your own cable each time. Before choosing, stand where the charger will be mounted and check that the cable will reach the charge port with the car parked nose-in and reversed. For a carport or driveway, choose a weather-rated unit and plan where the cable will hang so it is not driven over. The distance from your switchboard to the charger also affects the installation cost.
Do you need smart features?
Scheduling earns its keep on a time-of-use or EV electricity plan, and load management helps when your switchboard is already working hard. That said, most EVs can schedule charging themselves, so a basic charger plus the car's own timer can be enough. If you go smart, set the schedule in one place only: if both the car and the charger have schedules, the car may only charge where they overlap. Our smart EV charger installation page explains what we set up.
Will there be two EVs?
Two cars on one home supply need either two chargers that share power or a single charger used in turns. Many brands, including Tesla and Wallbox, support power sharing between units so the total stays within your supply.
Do you live in an apartment or strata building?
In a shared car park you usually need owners corporation approval, and the building may want chargers that report energy use per user. OCPP-compliant chargers with load management let a building meter, bill and share capacity across many bays, and choosing one now can save replacing it if the building adopts a shared system later.
Match your situation to a charger
| Your situation | What we usually recommend | Why |
|---|---|---|
| Short daily drives, car home 10 hours or more most nights | Portable cable on a suitable outlet, or a basic 7kW wallbox | A cable may keep up; a wallbox adds speed and flexibility |
| Single-phase home, one EV, typical commuting | 7kW single-phase tethered wallbox | Matches most cars and refills overnight |
| Single-phase home, car accepts 11kW | 7kW wallbox, no supply upgrade | Overnight charging still covers normal driving |
| Three-phase home, car accepts 11kW | 11kW three-phase wallbox | Faster turnaround with no upgrade needed |
| Rooftop solar, car often home by day | Solar-aware smart charger | Uses surplus solar instead of exporting it |
| Time-of-use or EV electricity plan | Smart charger, or a basic unit plus the car's own scheduling | Charging lands in the cheap window |
| Two EVs at one home | Two units with power sharing, or one smart unit shared | Keeps total load within your supply |
| Apartment or strata car park | OCPP smart charger with load management | Supports metering, billing and shared capacity |
| Type 1 car or several different cars | Untethered charger | Each car uses its own cable |
A brand-independent shortlist
EV Install is brand-independent, so we recommend whatever suits your car and site. These are the brands we install, grouped by what they do best:
- Tesla Wall Connector. A tethered, well-built unit that works with any Type 2 EV, not only Teslas, with power sharing between units and up to 22kW on three-phase. We are an authorised installer; see our Tesla Wall Connector installation cost guide for pricing. Its solar features generally rely on a Tesla Powerwall.
- Wallbox Pulsar Plus and Commander 2. The Pulsar Plus is compact with a strong app, power sharing and solar charging via an add-on power meter. The Commander 2 suits shared and multi-user sites.
- myenergi zappi and Fronius Wattpilot. Solar-first chargers for homes that want to run the car on surplus panels. The Wattpilot can switch between one and three phases automatically.
- KEBA KeContact P30 and EVSE Australia. Robust options in tethered or socket versions, with OCPP models for strata and commercial sites.
- Ocular IQ. Smart scheduling and load management at a competitive price, with local support.
- JuiceBox. A smart unit with app scheduling and energy tracking. Check current app support for your model before you buy.
Compare features, warranties and configurations on our EV charger brands page.
Mistakes to avoid
The other mistakes we see most often:
- Upgrading to three-phase just for charging when a 7kW unit already covers your daily driving overnight.
- Buying the charger before a site check. Switchboard capacity, cable route and mounting spot can change which unit makes sense, so get advice first.
- Choosing a cable that is too short or a mounting spot on the wrong side of the car.
- Paying for smart features you will not use on a flat tariff with no solar, or skipping them when solar is planned for next year.
- Setting charging schedules in both the car and the charger, then wondering why the car did not charge.
- Leaning on a portable cable in an old or worn power point, or through an extension lead, as your long-term solution.
If you are still unsure what the categories mean, how many types of EV chargers there are and what an EV charger actually does cover the background.
Get a recommendation for your home
The quickest way to the right answer is to have someone look at your switchboard, cable run and car together. Book a free on-site quote through our home EV charger installation page, or send photos of your switchboard and meter box for a simple job. We will recommend a charger that fits your car and supply, explain why, and give you a fixed written quote, so you only pay for the capability you will actually use.
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Written by Nathan Dawson, Founder & Lead EV Installer
A licensed electrician installing EV chargers across Sydney since 2017. Every install we quote is wired to AS/NZS 3000 and certified. More about Nathan.
