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Community Topic — Australia

Home EV Charging (Australia)

Home EV charging in Australia — granny chargers, GPOs, switchboard capacity, 3-phase, and wall unit installs.

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5 discussions

Top connectors: granny charger, GPO, sparky, 3-phase, switchboard

Questions & Discussions

Browse community questions on this topic.

45votes

Home Charging AU·Jul 29, 2026·@bazza_w

BYD Atto 3 and a Model 3 off the same single-phase circuit, only 10A GPOs in the garage — heading for an RCD trip?

My partner's Model 3 has been our only EV until last month, charging fine off a granny charger on one of the two 10A GPOs in our garage. Now I've picked up a...

9

answers

29votes

Home Charging AU·Jul 24, 2026·@kelso_j

Renting, no garage — running a 15m Arlec extension lead from the back GPO to the car out front. Is this actually a problem?

Renting a place in inner Melbourne, no garage, no driveway even. My only outdoor GPO is around the back near the laundry, and my park is basically street par...

19

answers

21votes

Home Charging AU·Jul 24, 2026·@davo9

Going untethered on the Sigenstore 22kW 3-phase wall charger — what length and amperage Type 2-to-Type 2 cable is everyone actually running?

Already got the Sigenstore battery, inverter and gateway in, and now adding their 22kW AC wall charger to finish the loop. Going untethered rather than the 5...

12

answers

41votes

Home Charging AU·Jul 24, 2026·@davo9

Is an 11kW L2 wall connector actually worth the $2K install if I've already got 3-phase, solar and a battery?

Ordered a Geely EX5, due sometime in November. We've had the panels and the battery in for about two years now, and when we did the rewire for those the spar...

16

answers

33votes

Home Charging AU·Jul 23, 2026·@gregolas

GWM Ora, granny charger working fine — is paying for anything more actually worth it?

Picked up a secondhand GWM Ora a few months back, first EV, still on the granny charger that came in the boot off the regular GPO in the carport. Works fine ...

6

answers

Is a granny charger off a GPO actually safe long-term?+

Yes, if the outlet is on its own sound circuit — age and shared-circuit loading are the real risk factors, not the granny charger itself. Get a sparky to check the circuit if the house is older or the outlet is original.

Do I need a sparky for a home charger install?+

Yes — a licensed electrician needs to confirm your switchboard capacity and run a dedicated circuit to AS/NZS 3000. Installs commonly run $650-2,000+ depending on cable run length and whether the board needs upgrading first.

Is a wall unit (11kW+) worth it over a granny charger?+

Depends entirely on your weekly driving distance — low-mileage daily driving is often fine on a granny charger overnight. The case for a wall unit is speed for big top-up days, not routine commuting.

Can solar/battery reduce home charging costs?+

Yes — setting a charger to only draw once solar export passes a threshold (a common Sigenstore/Fronius setup) can charge largely on excess solar instead of grid power.

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