A practical guide to choosing a home EV charger in WA — including which chargers actually match to your solar in real time.
Do you need 7 kW or 22 kW?
7 kW (single phase) — fits 95% of Perth homes. Adds ~40 km of range per hour. Fine for overnight top-ups.
22 kW (three phase) — requires a three-phase supply. Adds ~120 km/hr. Only worth it if you drive 200+ km/day or share the charger.
Solar-matched charging: the killer feature
Modern smart chargers monitor your inverter and only draw the surplus solar being exported. That means:
- Effective charging cost: $0.02/kWh (vs $0.35 from the grid)
- Full "free" charge from a 10 kW system on a sunny day
- No changes to your existing solar
Recommended units
- Tesla Wall Connector Gen 3 — best for Tesla owners, elegant, 22 kW
- Fronius Wattpilot Go — portable, solar-matched, works with any EV
- Zappi 2 — the gold standard for solar diversion, made by MyEnergi
- EO Mini Pro 3 — smallest footprint, great for tight garages
Installation notes for WA
- Western Power notification required for any charger > 7.2 kW
- Dedicated 32A circuit and RCBO mandatory
- Load management strongly recommended if your main switchboard is > 15 years old
We install ~40 EV chargers a month across Perth — book a free onsite check to see what fits your setup.
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