22kW EV Charger Installation in Ballarat
A 22kW wallbox is the fastest AC charging option for a home, but it needs three-phase supply to deliver that rate. For Ballarat homes that already have three-phase — some newer builds and renovated properties — a 22kW installation is worth considering where the vehicle and the household's driving patterns justify it.
The basics
What a 22kW home charger is
A 22kW charger is a fixed wallbox that delivers power across all three phases of supply, which is what allows the higher rate. It's wired to your switchboard on its own dedicated three-phase circuit with appropriate protection. Because it draws across three phases, the supply, cabling and protection are more substantial than a single-phase 7kW setup.
The three-phase requirement
A 22kW charger simply cannot run on a single-phase supply. If your home is single-phase — as most Ballarat homes are — then 22kW isn't available without a supply upgrade, which involves your electricity distributor and is rarely justified for charging alone. The first check is always: what supply does your home have?
Your vehicle's onboard limit still applies
As with any AC charger, your car's onboard charging limit sets the actual rate. Many EVs accept around 7kW, some 11kW, and fewer accept the full 22kW. If your vehicle caps out lower, a 22kW wallbox charges it at that lower rate. Confirm your vehicle's specifications before committing to a 22kW unit.
The installation
What a 22kW installation involves
Installation begins with confirming three-phase supply and available capacity at the property, then assessing the switchboard, the charger position and the cable route. A 22kW circuit needs three-phase cable and three-pole protection, so materials and labour are a step up from a single-phase install.
Where three-phase supply is already present with capacity to spare, the installation is otherwise similar: a dedicated circuit, a wall or pedestal mount, neat cable routing, and commissioning with app setup. The difference is in the supply-side work, not the charger itself.
- Confirmation of three-phase supply and capacity
- Dedicated three-phase circuit and protection
- Heavier three-phase cabling from the switchboard
- Wall or pedestal mounting as the site requires
- Commissioning, testing and app setup
- Handover covering scheduling and daily use
Is 22kW right for you?
Who a 22kW charger suits
A 22kW installation makes sense when three things line up: your home already has three-phase supply with spare capacity, your vehicle can accept a higher AC rate, and your driving patterns genuinely benefit — high daily distances, short turnarounds between trips, or a household sharing one vehicle that's rarely parked for long.
When 7kW is the better choice
For most households, overnight parking means a 7kW charger recovers more than enough range. If your home is single-phase, or your vehicle accepts around 7kW, a 22kW unit won't charge any faster — it'll just cost more to install. Compare the two before deciding.
Considering a 22kW charger at home?
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