One recognised brand covering both the inverter and the battery, with whole-home backup.
The Powerwall 3 folds a capable 20 kW-rated solar inverter into the battery itself, with three MPPT inputs for complex roofs. Tesla also has the most mature app and virtual power plant ecosystem in Australia, which matters if you want to earn from your battery.
Themes summarised in our own words from verified owner reviews published on SolarQuotes. Ratings current at time of writing and may change as new reviews are added.
| Usable capacity | 13.5 kWh (fixed, non-modular) |
| Maximum | Up to 54 kWh (four units) |
| Chemistry | LFP (lithium iron phosphate) |
| Warranty | 10 years · 70% capacity retained |
| Blackout backup | Whole home · recharges from solar during outage |
| Inverter | Integrated hybrid · 3 MPPTs · supports up to 20 kW solar |
New solar-and-battery installs where you want one recognised brand across the whole system, plus whole-home backup.
It is not suitable for off-grid use, and the separate Backup Gateway 2 hardware is required for backup, at additional cost. Capacity is fixed at 13.5 kWh per unit — you scale by adding whole units, not small modules.
Get a free assessment with your rebate and exact price — we confirm the model, capacity and warranty in writing before anything is ordered.
