Baldivis, by the numbers that matter for wiring
Estate after estate
Stockland's Settlers Hills was the first estate. There are now about 22, Tuart Ridge and Avalon among them, while land east of Baldivis Road is still mostly rural.
Houses, mortgages and young families
At the 2021 Census, Baldivis had 37,697 people and 13,660 private dwellings. 95.5% of occupied homes were separate houses, 59.3% were mortgaged and the median age was 31.
Solar on a big share of roofs
The Clean Energy Regulator counts 12,363 small-scale solar systems installed in postcode 6171 up to 30 September 2026.
A standard supply with a ceiling
Since 11 April 2023, Western Power's standard household supply is 63 amps on single phase, or 32 amps per phase on three phase. When new circuits would push past it, the contractor must assess your demand and apply for more.
Before you add an EV charger or battery
- Your main switch is a circuit breaker, which Western Power requires for a 7 kW home charger.
- The electrician has added up your existing load against the 63 amp single-phase supply.
- Total inverter capacity stays within 30 kVA, and 15 kVA on a single-phase connection, under the rules from 1 May 2026.
- You've checked if your retailer agreement allows export up to 5 kW, or if you'll be capped at 1.5 kW.
- If the charger is bidirectional (it can power the house), it's treated like solar and must meet AS/NZS 4777.
- The quote says who deals with Western Power and when you'll get the Electrical Safety Certificate.
When three phase comes up
A bigger home with ducted air, a pool and an EV can outgrow single phase. Converting starts with Western Power confirming three phase is available at your property. A registered electrical contractor then lodges a preliminary notice and the application, and Western Power says the disconnection and reconnection takes 5 to 7 weeks once it's accepted. Three-phase power covers when it's worth it.
What we'd do before buying a charger
Get the load calculation done first, then choose the charger. Western Power permits a 7 kW single-phase unit on a standard connection, but a house already running solar, a pool pump and ducted air may need load management or a supply upgrade. Better to know before the unit is on the garage wall.
Want a specialist to sort it?
Tell us the job and your postcode. We match the licence-checked local electrician who does this kind of work, and they call you. No ring-around, and your number goes to them alone.