What single-phase gives you
A 7 kW (32A) home charger. Overnight this comfortably tops up most daily driving.
Cheaper install — no supply upgrade needed for the vast majority of Australian houses.
Compatible with every mainstream EV sold in Australia.
When three-phase is worth it
You already have three-phase power at the property (common in newer builds and some larger homes).
You do very high daily kilometres and need faster daytime top-ups.
You want to future-proof for a second EV or a higher-capacity charger down the track.
Upgrading from single to three-phase
Retrofitting three-phase is expensive — often $2,000–$5,000+ depending on the network — and rarely worth it for a single home EV.
If you already have three-phase, tell your installer up front so they quote the correct charger and cabling.