Tesla Powerwall 3 in Perth
The battery most people ask for by name.
Powerwall 3 puts a 13.5kWh battery and a hybrid solar inverter in one wall unit. It suits new solar and battery installs, backs up the whole home in an outage and runs through the Tesla app. We install it across Perth and size it to your real usage.
13.5kWh
Usable storage
11.5kW
Continuous output
Built-in
Solar inverter
10 yr
Warranty
Specifications
What the numbers mean for you
Storage capacity
13.5kWh per unit
Covers evening and overnight use for most Perth homes using 20 to 25kWh a day. Add expansion units for bigger homes or EV charging.
Output
Up to 11.5kW continuous
Enough to run air-con, the oven and the kettle at once during an outage.
Solar inverter
Integrated hybrid inverter
No separate solar inverter needed on a new install. On a retrofit we check whether your existing inverter stays.
Backup
Whole-home backup with the Tesla Gateway
The house switches over automatically in a blackout. We set it up so the essential circuits are always covered.
Chemistry
LFP (lithium iron phosphate)
Stable chemistry that handles hot Perth garages and walls well.
Monitoring
Tesla app
See solar, battery and grid flows live, set backup reserve and schedule around time-of-use tariffs.
In detail
A closer look at the Tesla Powerwall 3
Perth pricing
$13,000 to $17,000 installed
Most single Powerwall 3 installs in Perth land between $13,000 and $17,000 supplied and installed, before the federal battery rebate. Switchboard work and expansion units change the figure. Fixed price confirmed after a free assessment.
See how Perth install pricing worksSized from your actual bills, not a guess. We model your evening usage before recommending a capacity.
Designed around Perth's DEBS export rates and time-of-use tariffs so the battery earns its keep.
One fixed price after the free assessment. No add-ons on install day.
Is the Tesla Powerwall 3 right for your home?
A strong fit if
- Homes adding solar and battery together
- Households that want automatic whole-home backup
- Tesla owners who want everything in one app
- Buyers who value a well-known brand and simple setup
Probably not if
- Buyers chasing the lowest cost per kWh (look at Fox ESS)
- Homes wanting DC EV charging from the battery (Sigenergy does this)
Tesla Powerwall 3 FAQs
How much does a Tesla Powerwall 3 cost in Perth?
Most single Powerwall 3 installs we quote sit between $13,000 and $17,000 supplied and installed, before the federal battery rebate. The final figure depends on switchboard work and whether you add expansion units.
Is Powerwall 3 worth it in Perth?
It is worth it if you use most of your power in the evening, want automatic backup and value the Tesla app. If price per kWh matters most, Fox ESS or GoodWe give more storage for the money.
Can I add Powerwall 3 to my existing solar?
Often yes. Powerwall 3 can take new panels directly and also accept AC-coupled solar from an existing inverter. We check your inverter and switchboard first.
Does Powerwall 3 work in a blackout?
Yes. With the Tesla Gateway it switches the home over automatically, usually in under a second, and keeps solar charging the battery during the day.
How many Powerwalls do I need?
One covers most Perth homes using up to about 25kWh a day. Big users, pool owners and EV drivers often add an expansion unit. We size it from your bill.
Can Powerwall 3 charge my Tesla?
It can feed a Tesla Wall Connector like any household load, and the Tesla app can prioritise charging from solar. It does not do DC charging direct from the battery.
How long does a Powerwall 3 install take?
A battery-only install usually takes one day. Solar plus Powerwall takes one to two days, plus the Western Power approval paperwork we handle for you.
Compare other batteries we install
Get your Tesla quote
A 60-second online estimate, then a free assessment to confirm a fixed price. Licensed WA electricians, EC# 15317.