Home Charging vs Public Charging Australia

For most EV owners, home charging does 90% of the work. You park, you plug in, and you wake up with a full battery — the same way you’d top up your phone overnight. Public charging fills the gaps: long road trips, topping up while you’re out, or when you live somewhere without dedicated home charging access.

The split matters because the two options are not even close on cost. Home charging at off-peak rates can cost as little as 2–3 cents per kilometre. Public DC fast charging at 55 cents/kWh costs closer to 10 cents per kilometre. Over 15,000km a year, that gap adds up to over $1,000. Getting the right setup at home — and understanding when public charging makes sense — is one of the best financial decisions you can make as an EV owner.

Cost Comparison

The table below shows typical costs across different charging methods available in Australia. All figures use an average consumption of 18kWh/100km, which is representative for a mid-size EV hatchback like the BYD Dolphin or MG MG4.

Charging method	Cost per kWh	Cost per 100km
Home flat rate (peak tariff)	~30c	~$5.40
Home off-peak (TOU overnight)	~18c	~$3.24
Home solar (surplus divert)	~2c effective	~$0.36
Chargefox DC 50kW	~55c	~$9.90
Tesla Supercharger	~52c	~$9.36
Evie Networks DC	~58c	~$10.44

Compare these figures to a petrol car consuming 8L/100km at $2.00/L: that’s $16.00 per 100km. Even home flat-rate charging at $5.40 per 100km is roughly one-third the fuel cost. Off-peak charging at $3.24 per 100km is closer to one-fifth.

For a full breakdown of costs by state and tariff type, see our EV charging cost guide.

Speed Comparison

Home charging is slow in absolute terms. Public fast charging is dramatically faster. The question is whether that speed difference matters for how you actually use the car day-to-day.

Charging type	Power	Range added per hour
Standard 10A power point	2.4 kW	~13 km/hr
7kW wall charger (AC)	7 kW	~39 km/hr
22kW AC (three-phase)	22 kW	~122 km/hr
50kW DC fast charger	50 kW	~278 km/hr
150kW DC ultra-rapid	150 kW	~833 km/hr
350kW DC ultra-rapid	350 kW	~1,000+ km/hr

For most Australians driving 40–60km per day, a 7kW home charger plugged in for 8 hours adds 300km of range — far more than you used. Speed at public chargers only matters on road trips where you need a meaningful top-up in 20–30 minutes and then get back on the road.

For more on public fast charging infrastructure and which networks to use, see our DC fast charging guide.

The Convenience Factor

Home charging wins on convenience — it’s not close.

Think about how you refuel a petrol car. You drive to a servo, wait, pay, and drive away. Five to ten minutes, every week or so. Now think about charging an EV at home: you pull into the driveway, plug in a cable, and go inside. You don’t think about it again. You leave the next morning with a full battery.

The analogy that works well: imagine if you could refuel your petrol car in your own driveway every night while you slept. EV owners already have that. The fuel just happens to be electricity.

The only time home charging feels inconvenient is when you forget to plug in. That’s a habit adjustment that most owners master within a few weeks.

When Public Charging Makes Sense

Public charging is genuinely useful in four scenarios:

Road trips. Australia’s fast charging network now covers the major highway corridors well enough for most interstate trips. Chargefox, Evie Networks, and Tesla Supercharger have stations on the major east-coast routes, and the network is expanding. A 30-minute stop at a 150kW charger will typically add 200–250km of range.

Apartment living without home charging. If you live in an apartment and your building doesn’t have EV charging, public charging becomes your primary method. This is a real limitation — see the section below on apartments.

Emergency top-ups. You misjudged the range, or a longer-than-expected day left you lower than expected. A nearby fast charger solves the problem in 15–20 minutes.

Free or subsidised charging. Some shopping centres, council car parks, and workplaces offer free or cheap charging. Using these when you’re already parked is straightforward financial sense — there’s no reason not to plug in.

Apartment vs House: The Real Divide

Home charging works well for standalone houses with a garage or covered parking. For the roughly 30% of Australians who live in apartments or units, the situation is more complicated.

Installing a charger in an apartment building requires strata approval, electrical work to individual car spaces, and potentially upgrading the building’s electrical supply. Most existing apartment buildings in Australia were not designed with EV charging in mind, and strata bodies vary widely in how cooperative they are.

The National Construction Code now requires new residential apartment buildings to include EV-ready wiring in a percentage of car spaces — an important long-term change, but one that does nothing for the existing stock. If you live in a pre-2023 apartment building without dedicated EV infrastructure, you’ll likely rely on a combination of public charging and workplace charging.

The practical options for apartment dwellers are: lobby your strata for infrastructure, use workplace charging if available, or plan your public charging stops around your weekly routine. See our full guide on charging an EV from an apartment in Australia for practical steps.

How a Home Charger Pays for Itself

A typical 7kW wall charger, professionally installed, costs around $1,200 all-in — the charger unit plus the electrician’s labour. That number varies based on how far the board is from the car space and whether any switchboard upgrades are needed, but $1,200 is a reasonable benchmark. For a detailed breakdown, see our EV charger installation cost guide.

Here’s the payback calculation for someone who currently uses public DC charging as their primary method, then switches to home charging:

Public DC charging cost: 55c/kWh
Home off-peak charging cost: 18c/kWh
Saving per kWh: 37c
At 18kWh/100km and 15,000km/year: 2,700kWh consumed annually
Annual saving: 2,700 × $0.37 = $999/year

At $1,200 installation cost, the payback period is just over one year. For anyone paying for public DC charging regularly, the math strongly favours installing a home charger. Even against home flat-rate charging (30c/kWh) versus off-peak (18c/kWh), the saving is $324/year — a 3.7-year payback on a $1,200 installation.

Once the charger has paid for itself, every kilometre driven on off-peak electricity represents real savings compared to petrol.

For reviews and recommendations on which home charger to buy, see the best home EV charger guide for Australia.

Solar Charging: The Optimal Case

If home charging is good value, home charging with rooftop solar is excellent value. Solar feed-in tariffs in Australia have dropped to 3–10 cents/kWh in most states. If your EV charges during the day and you have surplus solar production, that electricity costs you roughly the foregone export value — 3–10 cents — rather than the 28–38 cents you’d pay for grid import.

At 3c/kWh effective cost and 18kWh/100km consumption, solar charging costs approximately 0.54 cents per kilometre. That is effectively free fuel for the vast majority of driving.

Not every household can charge during solar hours — many people park at work during the day and charge at home in the evening. But even partial solar coverage makes a meaningful dent in annual charging costs. A smart charger with solar divert functionality (such as the Myenergi Zappi or equivalent) automatically maximises solar consumption without requiring you to manually manage timing.

For a detailed guide on combining solar with EV charging, see our solar EV charging guide.

The Bottom Line

Home charging is cheaper, more convenient, and should handle the overwhelming majority of your charging needs. Public fast charging is a critical backup and the solution for longer trips — but it’s not something you want to rely on as your primary method if home charging is available to you.

If you’re weighing up the full cost picture for EV ownership, the combination of off-peak home charging and occasional public charging puts the average Australian EV driver well below 5 cents per kilometre in fuel costs. That compares favourably with any petrol car on the market today.

Common Questions

Is it cheaper to charge an EV at home or at a public charger?

Home charging is almost always cheaper in Australia. A standard home electricity tariff runs 28–38 cents/kWh in most states. Off-peak overnight rates can be as low as 15–25 cents/kWh. Public fast chargers (Chargefox, Evie Networks) typically charge 45–65 cents/kWh for DC charging. Tesla Superchargers charge around 48–55 cents/kWh. Home charging costs 2–5 cents/km; public fast charging costs 5–10 cents/km.

How fast is a home EV charger compared to a public charger?

A standard home wall charger (7kW) adds approximately 40–50km of range per hour. A DC fast charger at 50kW adds approximately 250–300km per hour. A 350kW ultra-rapid charger adds up to 1,000km+ per hour (though few EVs can accept more than 150kW). Home charging is slow but convenient — overnight charging covers most daily driving needs without any waiting.

Do I need a home charger or can I use a standard power point?

A standard 10A power point (2.4kW) works for top-up charging. It adds approximately 10–15km of range per hour — adequate if you drive under 50km/day and plug in overnight. A dedicated 7kW wall charger is faster and recommended for higher daily mileage, V2H-capable EVs, or larger batteries. A wall charger installation typically costs $700–$1,500 all-in.

Home Charging vs Public Charging in Australia: Cost, Speed and Convenience Compared