Tesla Powerwall 3
Trusted No. 1 Canberra Powerwall installer

Powerwalls deliver lasting impact
See the combined impact of the Powerwalls we’ve installed across Canberra.
Powerwalls installed in Canberra, and counting
hrs
Hours of free energyevery day
Cars off the roadfor a year
tonnes of CO₂ displaced
$
Savedon energy bills
Energy Independence with Powerwall.

Use more of your solar
Store excess solar during the day and use it to power your home after dark.
Save during peak hours
Powerwall uses your energy plan and usage patterns to help reduce grid use when electricity costs the most.
Grow with your energy needs
Add more battery storage as your household’s energy needs change.
Ten years, unlimited cycles warranty
Powerwall’s lithium iron phosphate (LFP) cells are backed by a ten year warranty, with unlimited cycles for everyday solar storage and home backup.Your whole energy system in one simple app
See your solar, Powerwall, home, grid and Tesla all in one place. The Tesla app gives you a simple, live view of where your energy is coming from and where it’s going.



Protect your home from outages



The array is idle. The house runs on what the battery stored during the day.
The gateway opens the connection to the street. The house keeps running on the battery.
Solar charges the battery, runs your home, and sends the rest out to the grid.

Tesla Powerwall 3 Specifications
The Tesla Powerwall 3 stores 13.5 kWh of usable energy and delivers 5, 10 or 11 kW of continuous power. Its built in solar inverter accepts up to 20 kW of DC solar input. Each Expansion adds another 13.5 kWh of storage using the same inverter. Connect up to three Expansions to one Powerwall 3 for a total of 54 kWh.
| Property | Tesla Powerwall 3 | Powerwall 3 Three-Phase | Powerwall 3 Expansion |
|---|---|---|---|
| Usable capacity | 13.5 kWh | Coming soon - enquire for more info | 13.5 kWh |
| Continuous power | 5, 10, 11 kW | Not stated | Not stated |
| Solar input | 20 kW DC, straight into the unit | Not stated | Not stated |
| Backup transition | Not stated | Not stated | Not stated |
| Expandable to | Up to 4 units: 54 kWh, plus expansions | Not stated | Three per Powerwall 3, 54 kWh |
| IP rating | IP67 | Not stated | IP67 |
| Operating range | −20°C to 50°C | Not stated | −20°C to 50°C |
| Dimensions | 1105 × 609 × 193 mm | Not stated | 1105 × 609 × 168 mm |
| Weight | 130 kg | Not stated | 110 kg |
| Warranty | 10 years, unlimited cycles | Not stated | 10 years, unlimited cycles |
| Solar inverter | Integrated, 3 MPPTs | Not stated | Not stated |
| Backup | Single phase: whole home Three phase: partial home | Not stated | Not stated |
| Monitoring | Tesla app | Not stated | Tesla app, through the Powerwall 3 |
| Powerwall 2 compatibility | Yes | Not stated | Not stated |
Solar battery rebate
The Cheaper Home Batteries discount, worked out for each size. You claim it once per property, so the size you install is the size you claim on. Your accredited retailer takes it off your quote at the point of sale, so there is no separate claim afterwards, and the rate steps down every six months until 2030.
| Units | Usable storage | Federal discount | Added by this step |
|---|---|---|---|
![]() | 13.5 kWh | $3,276 | Full rate |
Most popular![]() ![]() | 27 kWh | $5,328 | +$2,052 |
![]() ![]() ![]() | 40.5 kWh | $5,940 | +$612 |
![]() ![]() ![]() ![]() | 54 kWh | $6,264 | +$324 |
Rates as at 29 July 2026 · Clean Energy Regulator · installs to 31 December 2026
Add Powerwall 3 to your Powerwall 2
The latest software update lets you expand your existing system with Powerwall 3 while keeping your Powerwall 2 and its warranty.

What your system can hold
Your Powerwall 2 units stay in place, and we add Powerwall 3 alongside them. A single system supports up to four Powerwall 2 units, one Powerwall 3 and three Powerwall 3 Expansions.
Get in touch to find out how we can expand your existing system.

A battery that truly complements your wall.







Every installation backed by the Sunstak guarantee
Sunstak master installers
Our master installers have completed at least 100 installations with 5/5 star reviews.
Installation with no surprises
We confirm the scope, price and installation plan. You'll know exactly what's included, what happens next and what to expect on the day, with no last-minute variations or surprises.
Roof leak guarantee
If your roof leaks after our installation, we pay you $500 cash and fix it immediately.
Stock guarantee
If we can't supply the product on your design, we replace it with an upgrade and your price does not move.
Book a site visit
Speak with one of our Energy Geeks today.


- Solar Accreditation Australia approved
★★★★★
Having used two other installers previously, the Sunstak experience is head and shoulders superior…
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