Home EV charging in Australia, explained

Here's everything that goes into a home EV charger decision, in the order it matters

Getting a charger at home raises about a dozen questions, but they fall into a clear sequence, and once you see the shape of it the whole thing gets simple. It starts with understanding how home charging actually works — the three charging levels and what "Level 2" really means. Then comes the decision that anchors everything else: how much power your home can deliver, which is the single-phase versus three-phase question, and which is the same as the 7kW versus 22kW question. Nail that, and choosing a charger becomes a question of features rather than raw speed. After that it's the practical run: what installation involves and why the wiring sets the price, what it costs to run once it's in, and what to do on the rare day it stops working.

We'll walk each of those in turn, and each section is a complete summary in its own right — you'll come away understanding the topic whether or not you read the dedicated guide it links to at the end. So let's start at the start: how charging an electric car at home actually works.

How home EV charging works: Level 1, Level 2 and DC

Charging an electric car at home is, at heart, just moving electricity from your home's wiring into the car's battery — but how fast that happens splits into three levels, and knowing them is the foundation for everything that follows. Level 1 is the slowest: you plug the car into an ordinary power point using the cable that came with it. It needs no special equipment, but it trickles in charge so slowly that it really only suits low-distance drivers or an overnight top-up. Level 2 is the home standard: a dedicated wall-mounted charger wired into its own circuit, charging many times faster and comfortably refilling a typical car overnight. Level 3 is DC fast charging — the rapid public chargers at service stations and shopping centres — and it is not something you install at home; it runs on industrial-grade supply that homes don't have, so for a home decision it sits firmly in the "public only" column.

For almost every Australian household, then, "a home charger" means a Level 2 wall unit, and there are two terms worth fixing in your mind now because they recur everywhere. The first is the Type 2 connector — the universal AC plug used on new EVs sold in Australia — which means a Type 2 charger fits essentially any modern car you'll buy here. The second is "smart": a smart charger talks to an app, can schedule charging to cheap times of day, and can coordinate with rooftop solar, whereas a "dumb" unit simply charges at full power whenever the car is plugged in. The headline number people fixate on is how many kilowatts (kW) the charger delivers, because more kW means faster charging — but as the next section explains, the kW you can actually reach isn't set by the charger you buy. It's set by the power your home already has. For a side-by-side of the slow socket option versus a proper home unit, see Level 1 vs Level 2.

First up — the decision that anchors everything: single-phase vs three-phase (7kW vs 22kW)

If you only understand one thing about home charging, make it this, because it quietly determines almost every other choice. The question is how much power your home's electricity supply can deliver. Most Australian homes have a single-phase supply — roughly 90% of them — and on single-phase, an AC charger is capped at about 7.2 to 7.4kW.2electricvehiclecouncil.com.auView source 1electricvehiclecouncil.com.auView source That ceiling isn't a limitation of the charger; it's simple physics. A single-phase domestic circuit runs at around 240 volts, a typical EV circuit at 32 amps, and 240V multiplied by 32A works out to roughly 7.4kW. No charger plugged into single-phase can beat that figure, no matter how big the number printed on the box. This is why the 7kW-versus-22kW choice and the single-phase-versus-three-phase question are really the same question wearing two hats.

To reach 22kW you need a three-phase supply, which delivers power across three live conductors instead of one.2electricvehiclecouncil.com.auView source Some homes already have three-phase — often larger or newer properties, or ones with big appliances like ducted air conditioning — but most don't. Upgrading from single- to three-phase is a significant, separate electrical job, and it usually isn't worth doing just for charging, because a 7kW charger already refills a typical car overnight with hours to spare. So the practical first move, before you fall for a 22kW charger or a particular brand, is to find out which supply your home has; a licensed electrician confirms this on a site visit, and once you know it, every downstream decision narrows itself. The table below sums up what each set-up means in practice, and a 7kW vs 22kW comparison goes deeper on whether a faster charger is ever worth chasing.

7kW single-phase vs 22kW three-phase, at a glance

The two realistic home-charging set-ups in Australia come down to which supply your home has. This is what each one means in practice.

Choosing a charger: it's the smart and solar features that matter, not the kW

With your supply settled, the choice between chargers becomes a question of features rather than raw speed, because every reputable Level 2 unit will deliver the kW your home can feed. The cheapest units are "dumb": they charge the car at full whack whenever it's plugged in, which is perfectly fine if your tariff is flat and you have no solar. "Smart" chargers add an app, scheduling, and — the feature that matters most in sunny Australia — the ability to work with rooftop solar. A smart, solar-aware charger such as the myenergi Zappi can divert surplus solar that would otherwise be exported to the grid straight into your car, and schedule charging to land in cheap overnight windows.3myenergi.comView source Ocular and SolarEdge sell comparable solar-aware home chargers, so the real differences between good units tend to live in the software, not the plug.6ocularcharging.com.auView source

On the brand front, the Australian landscape is broad enough that you have genuine choice: Tesla, myenergi's Zappi, Ocular, Wallbox, Schneider, Evnex and SolarEdge are all sold here, and most pair a Type 2 connector with their own app. Two definitions help you read the spec sheets. Type 2 is the standard AC plug already mentioned, so it fits essentially any new car. OCPP — the Open Charge Point Protocol — is an open smart-charging standard, and a charger that supports it is less likely to be locked to a single company's app or network, which matters if you want flexibility down the track. For most single-phase homes the deciding question is refreshingly simple: which smart and solar features will you genuinely use? Chasing a 22kW figure your supply can't feed is wasted money, and a feature-rich 7kW unit beats a bare-bones one every time. To weigh the slow Level 1 option against a proper home charger before you commit, see Level 1 vs Level 2.

What installation involves — and why the wiring, not the box, sets the price

Once you've chosen a charger, the next thing to understand is that mounting it on the wall is the easy part — the real work, and the real cost, is the wiring. In Australia that wiring is licensed electrical work: a licensed electrician runs a dedicated circuit from your switchboard to the charger, with its own breaker and safety switch (RCD), so the charger doesn't share a circuit with anything else in the house.5mainswitchelectrical.com.auView source That single fact explains why two installs of the very same charger can be priced worlds apart — the cost is driven by your home, not by the unit. A short cable run from a modern, healthy switchboard is a simple job; a long run across the property, a full or ageing switchboard that has to be upgraded first, or trenching out to a detached garage all add to it.

Because it is regulated electrical work, fitting a charger is not a DIY task, and the relevant context an electrician works to is AS/NZS 3000, the Australian wiring standard — that's background, not a compliance claim you need to act on, because the licensed tradie carries that responsibility. The headline things to know going in are: budget for the wiring rather than just the box, get your switchboard assessed early because it's the most common cost surprise, and expect the electrician to confirm your single- or three-phase supply as their first step. For a full walk-through of who can install one, what happens on the day and the switchboard work that swings the price, see EV charger installation; to see a live estimate for your own home, the cost guide gives you a fair-price range up front.

What it costs to charge at home — and why your tariff, not the charger, sets it

With a charger installed, the running cost is the part that tends to surprise people in a good way: charging at home is cheap, typically just a few dollars per 100km. On a low off-peak electricity rate, 100km of driving can cost as little as about $2; on a standard flat rate it's closer to $5; and public DC fast charging costs far more again, often $11 or more per 100km.4dailyenergynews.com.auView source That gap between home and public is the whole financial case for charging at home — you're buying energy at household rates instead of premium public ones — and it's why a home charger pays for itself over time even before you factor in convenience.

The arithmetic behind your own number is straightforward, and worth doing so you can see what actually moves the bill. A typical EV uses around 18kWh of energy per 100km — some efficient cars less, larger ones more — so your cost per 100km is roughly that energy figure multiplied by the rate you pay per kWh.7nationalcover.com.auView source Notice what's missing from that sum: the charger's kW rating doesn't appear anywhere. A faster charger fills the battery sooner, but it doesn't change how much energy the car needs or what you pay for it — your electricity plan does that. Which is why the single biggest lever on your running cost is choosing a tariff with a cheap charging window, and pairing it with a smart charger that schedules into that window (or diverts surplus solar, which can drop the cost further still). To put in your own car, state and tariff and get a real figure, use the EV charging cost calculator.

When a charger stops working: the safe checks, then a licensed electrician

The last piece of the picture is what to do on the rare occasion a working charger suddenly won't deliver charge — and the rule here is management, not DIY repair. A couple of safe, no-tools checks often explain the problem before you need to call anyone. Confirm the car is properly plugged in and actually set to charge, since many cars have a schedule or charge-limit setting that quietly pauses charging; check whether the charger's safety switch at the switchboard has tripped, and reset it once if it has; and look at the unit's status light or app for an error code. These are things any homeowner can safely look at, and they catch a surprising share of "it stopped" cases.

Past that point, stop and hand it over. The charger sits on a dedicated high-voltage circuit with its own breaker and safety switch, so a repeatedly tripping switch, a dead unit, or any sign of heat, scorching or damaged cable is licensed electrical work — a licensed electrician diagnoses and repairs it, never a homeowner with the cover off.5mainswitchelectrical.com.auView source SureQuote helps you find and compare local licensed installers and gives you an upfront estimate, but it never performs the work itself — only a qualified tradie does that. It's also worth knowing that a few topics sit at the edges of this map and are good to research separately if they apply to you: charging in an apartment or strata complex (which adds body-corporate approvals), any state rebates that may be running, and brand-specific quirks of a particular charger model — none of which change the core path you've just read.