A 22kW EV charger is the fastest AC charger you can install at home. It runs on three-phase power and adds roughly 120km of driving range per hour of charging, compared to about 40km per hour from a standard 7kW unit.
Not every home can run one, and not every EV can use the full 22kW. This guide covers how these chargers work, what your property needs, which models are available in Australia, and whether the upgrade makes financial sense for your situation.
Need a 22kW charger installed? SolaXs is a CEC-accredited installer with 25+ years experience on the Mid North Coast. Get a free EV charger quote today.
What a 22kW EV Charger Actually Does
Every home EV charger is an AC (alternating current) Level 2 charger. The number before “kW” tells you how much power it delivers to your car per hour. A 22kW charger pushes 22 kilowatts, which your car’s onboard charger converts to DC to fill the battery.
In practical terms, a 22kW charger can fully charge a 60kWh battery in under 3 hours. A 7kW charger takes 8 to 9 hours for the same battery. That speed difference matters if you drive long distances daily or need your car topped up quickly between trips.
- Charging speed: Roughly 120km of range added per hour
- Full charge time: 2.5 to 3 hours for a typical 60kWh battery
- Power supply required: Three-phase (400V)
- Current draw: 32A per phase (3 x 32A)
- Connector type: Type 2 (standard for all EVs sold in Australia)
Why 22kW Needs Three-Phase Power
Most Australian homes run on single-phase power. That single phase delivers around 230V and supports a maximum charging speed of 7.4kW. You cannot get 22kW from single-phase supply, regardless of which charger you buy.
Three-phase power delivers electricity through three conductors instead of one, roughly tripling the available power. It runs at about 400V and is what lets a 22kW charger draw 32A across all three phases simultaneously.
| Single Phase | Three Phase | |
|---|---|---|
| Voltage | 230V | 400V |
| Max EV charging speed | 7.4kW | 22kW |
| Range added per hour | ~40km | ~120km |
| Full charge (60kWh battery) | 8-9 hours | 2.5-3 hours |
| Typical residential availability | Most homes | Some homes, common in newer builds and rural properties |
How to check your power supply
Open your meter box and count the pole switches on your main circuit breaker. A single-phase supply has a single-pole or double-pole breaker, while three-phase has a triple-pole breaker (three switches ganged together). If you are not sure, your electrician can confirm it during a site visit.
Can you upgrade to three-phase? In most areas, yes. Your electricity distributor handles the supply upgrade, which typically costs $1,000 to $5,000 depending on the distance from the street transformer to your meter box. Three-phase also unlocks faster charging speeds and higher solar export capacity, making it a worthwhile upgrade beyond the charger alone.
Does Your EV Actually Use 22kW
Here is where people get caught out. A 22kW charger can deliver 22kW, but your car will only accept what its onboard AC charger can handle. If your EV has an 11kW onboard charger, plugging into a 22kW wallbox still gives you 11kW.
Most popular EVs sold in Australia cap at 11kW AC. The Tesla Model 3 and Model Y both have 11kW onboard chargers. The BYD Atto 3 supports 7kW AC on base models and 11kW on selected trims.
Popular Australian EVs and their max AC charging speed
| EV Model | Max AC Speed | Approx. Charge Time (60kWh) |
|---|---|---|
| Tesla Model 3 / Model Y | 11kW | ~5.5 hours |
| Hyundai Ioniq 5 / Ioniq 6 | 11kW | ~5.5 hours |
| Kia EV6 / EV9 | 11kW | ~5.5 hours |
| BYD Atto 3 | 7-11kW (trim dependent) | ~5.5-8.5 hours |
| MG ZS EV / MG4 | 11kW | ~5.5 hours |
| Renault Zoe | 22kW | ~3 hours |
| Polestar 4 | 22kW | ~3 hours |
| BMW iX / i5 | 22kW | ~3 hours |
| Porsche Taycan | 22kW (option) | ~3 hours |
If your EV caps at 11kW, a 22kW charger will charge at 11kW. You still benefit from three-phase charging at 11kW versus single-phase at 7kW, but you will not hit the full 22kW speed. For a full comparison of charger levels, see our guide to the best home EV chargers in Australia.
EVs that support full 22kW AC charging
- Renault Zoe: 22kW AC as standard, one of the first to offer it
- BMW iX / i5: 22kW AC as standard or available
- Porsche Taycan: 22kW AC available as an option
- Polestar 4: 22kW AC as standard
- Zeekr 001 / X: 22kW AC as standard
- Smart #1 / #3 Brabus: 22kW AC as standard
Check your owner’s manual or the spec sheet on the manufacturer’s website for “onboard charger” or “AC charging” capacity. That number is your ceiling, not the wallbox rating.
Still worth it with an 11kW car? Absolutely. A 22kW charger running an 11kW car still charges at 11kW, which is faster than the 7kW you get from single-phase. And if your next EV supports 22kW, the charger is already there.
Popular 22kW EV Chargers in Australia
The 22kW charger market in Australia has grown quickly. These are the models we see most often and the ones worth considering.
| Model | Output | Key Feature | Approx. Unit Price |
|---|---|---|---|
| Ocular LTE Plus | 22kW (3-phase) | LCD screen, IP66, IK10 impact rated | $1,200 – $1,500 |
| Zappi V2 (3-phase) | 22kW (3-phase) | Solar diversion built in, eco modes | $1,645 – $1,695 |
| Wallbox Pulsar Plus | 22kW (3-phase) | Compact design, smart solar charging | ~$1,650 |
| Tesla Wall Connector | 22kW (3-phase) | Wi-Fi app control, 4-year warranty | ~$780 |
| GoodWe HCA | 22kW (3-phase) | OCPP compatible, 5-year warranty | $1,000 – $1,400 |
| Evnex X22 | 22kW (3-phase) | Tethered or socketed, NZ designed | $1,400 – $1,800 |
The Tesla Wall Connector stands out on price. The Zappi is the best choice if you want to divert excess solar generation directly to your car without a separate controller. The Ocular LTE sits well in the mid-range with the best weatherproofing in the group (IP66).
All of these use the universal Type 2 connector and work with every EV sold in Australia. If your car caps at 7kW AC, a dedicated 7kW home charger may offer better value than paying for 22kW capacity you cannot use.
What 22kW Charger Installation Involves
Installing a 22kW charger is a bigger job than a standard 7kW unit. The three-phase wiring, heavier cable and larger circuit breaker all add to the complexity and cost.
Installation steps
- Site assessment. Your electrician checks whether you have three-phase supply, inspects the switchboard for capacity, and measures the cable run distance.
- Three-phase upgrade (if needed). If your property only has single-phase, upgrading to three-phase is arranged through your electricity distributor.
- Switchboard work. A dedicated 32A three-phase circuit breaker and RCD are installed.
- Cable run and mounting. Heavy-gauge cable runs from the switchboard to the charger location. The charger mounts on a wall or optional floor pedestal.
- Testing and commissioning. The electrician tests the circuit, verifies fault protection and confirms the charger operates at the correct output.
Cost breakdown
- Charger unit: $780 to $1,800 depending on model
- Standard three-phase installation: $800 to $1,500 for labour and materials
- Switchboard upgrade (if needed): $500 to $1,500
- Three-phase supply upgrade (if needed): $1,000 to $5,000 (paid to your distributor)
- Total range: $1,600 to $4,800 all-in, depending on your starting point
The biggest variable is whether you already have three-phase power. If you do, the install is similar in complexity to a 7kW charger, just with heavier cable. For a detailed breakdown, see our EV charger installation cost guide.
Pairing a 22kW Charger With Solar
A 22kW charger paired with rooftop solar lets you charge your EV from your own generation rather than grid electricity. On the Mid North Coast, a typical home solar system generates more than enough during the day to top up an EV, effectively giving you free fuel.
Smart chargers with solar diversion (like the Zappi or GoodWe HCA) adjust their output to match available solar. If your panels are producing 5kW of excess power, the charger draws 5kW. When a cloud passes, it throttles down automatically, keeping your grid import close to zero while charging.
- Grid electricity cost: Roughly $0.30 to $0.35 per kWh on most NSW tariffs
- Solar charging cost: Effectively $0.00 per kWh (marginal cost of existing panels)
- Annual savings example: Charging 40kWh per week from solar instead of the grid saves around $600 to $730 per year
If you already have solar or are considering a system alongside your charger, charging your EV with solar panels is the single best way to cut your running costs long-term.
EV Charger Rebates in Australia
Several government programs can reduce the cost of installing an EV charger. Eligibility and availability change, so confirm details before you commit.
- DRIVEN Charger Rebate Stream (Federal): Up to $3,000 per eligible smart EV charging plug. This program applies to businesses, dealerships and EV repairers (not residential).
- NSW EV Fleets Incentive: $4,000 to $8,000 per smart charger for eligible businesses and fleets.
- ACT Sustainable Household Scheme: Zero-interest loans up to $15,000 for EVs or home charging equipment.
- Western Australia Charge Up Grants: Co-funding 50% of charger installation costs for businesses and local governments.
NSW does not have a dedicated EV charger rebate for residential installations as of mid-2026. Pairing your charger with a residential solar installation is the best way to offset running costs on the Mid North Coast.
Is a 22kW Charger Worth It for Your Home
A 22kW charger makes sense in specific situations. For most Australian households, a 7kW single-phase charger handles overnight charging without any issue. Here is when the upgrade is worth the extra spend.
The 22kW charger suits you if
- Your property already has three-phase power
- You drive more than 200km per day and need fast turnaround charging
- Your EV supports 22kW or 11kW AC charging (you get faster speeds than single-phase either way)
- You run a business with fleet vehicles that need to charge during the day
- You want to future-proof for your next EV, which may support higher AC speeds
Stick with 7kW if
- You only have single-phase power and do not want to pay for a supply upgrade
- You drive under 100km per day (overnight charging covers it easily)
- Your EV caps at 7kW AC anyway (check your onboard charger spec)
For homeowners with solar, the calculation changes. A 22kW charger paired with solar battery storage lets you charge your car from your own roof during the day. That combination of solar generation, battery storage and fast EV charging is where the long-term savings stack up.
If you are on the Mid North Coast and want to work out which charger suits your home, SolaXs can help. We install Ocular, Tesla, GoodWe and Sigenergy chargers and can recommend the right option based on your switchboard, power supply and driving habits.
Book a free EV charger consultation or call our team to get started.
Frequently Asked Questions
Can a 7kW car use a 22kW charger?
Yes. The charger and your car negotiate the charging speed automatically. If your EV has a 7kW onboard charger, it will draw 7kW from a 22kW wallbox and will not charge any faster than a 7kW charger would provide.
Is 22kW considered fast charging?
No, a 22kW charger is Level 2 AC charging. DC fast charging (the type at public charging stations) starts at 50kW and goes up to 350kW. A 22kW charger is the fastest AC option available for home installation, but it is not in the same category as DC rapid chargers.
Do I need three-phase power for a 22kW charger?
Yes, single-phase power maxes out at roughly 7.4kW, so you need a three-phase supply (400V) to run a 22kW charger at full output. If your property only has single-phase, your electricity distributor can upgrade it, typically for $1,000 to $5,000.
How much does it cost to install a 22kW EV charger in Australia?
Expect to pay between $1,600 and $4,800 all-in. That includes the charger unit ($780 to $1,800), installation labour and materials ($800 to $1,500), and any switchboard or three-phase supply upgrades your property needs.
How long does a 22kW charger take to fully charge an EV?
A 22kW charger can fill a typical 60kWh battery in about 3 hours. However, if your car’s onboard AC charger caps at 11kW, the same battery takes roughly 5.5 hours. The limiting factor is your car’s onboard charger, not the wallbox.
Can I charge my EV with solar using a 22kW charger?
Yes. Smart chargers with solar diversion mode (such as the Zappi or GoodWe HCA) automatically match their output to your available solar generation. This lets you charge from your own roof at effectively zero cost per kilowatt-hour, rather than paying grid rates of $0.30 to $0.35 per kWh.
What is dynamic load balancing on an EV charger?
Dynamic load balancing monitors your home’s total electricity draw and adjusts the charger’s output to prevent overloading your main breaker. If your household is running air conditioning and appliances, the charger throttles down, and when demand drops, it ramps back up. Most 22kW chargers either include this feature or offer it as an add-on.
What size cable is needed for a 22kW EV charger?
A 22kW three-phase installation typically requires 5-core cable in 6mm² or 10mm² depending on the cable run length. Longer runs need thicker cable to handle voltage drop. Your electrician will size the cable during the site assessment based on distance from your switchboard to the charger location.
Is a 22kW charger worth it if my car only charges at 11kW?
It can be, since you still get 11kW charging on three-phase, which is faster than the 7kW on single-phase. A 22kW charger also future-proofs your setup for your next EV. However, if budget is tight and your car caps at 11kW, a dedicated 11kW three-phase charger costs less and delivers the same real-world speed for your vehicle.
For more information, see the Australian Government electric vehicles guide and the ARENA EV charging infrastructure resources.