Tesla Powerwall 3 Price Australia 2026
The Tesla Powerwall 3 unit costs around $13,250 in Australia, with total installed pricing of $15,000 to $17,000 before the federal Cheaper Home Batteries rebate (about $3,458 off a 13.5 kWh unit) brings it down. This page covers the cost breakdown and key specs. For our full editorial review, comparison and verdict, see our in-depth Tesla Powerwall 3 review.
Short verdict: the Powerwall 3 is a premium battery with excellent performance and the best app experience. It suits Tesla ecosystem users and anyone who wants maximum power output for backup.
Technical specifications
- Capacity
- 13.5 kWh
- Power
- 11.5kW peak / 5kW continuous
- Round-trip efficiency
- 90%
- Warranty
- 10 years
- Dimensions
- 1150 x 753 x 147mm
- Weight
- 114 kg
- Operating temperature
- -20°C to 50°C
- Certification
- IEC 62619, UN 38.3
Pros and cons
Pros
- Industry-leading 11.5kW peak power output
- Sleek, compact design suitable for indoor or outdoor installation
- Excellent app and monitoring system
- Direct integration with Tesla Solar
- Storm Watch feature for blackout preparation
- Time-based control for tariff optimisation
Cons
- Premium price point
- Requires Tesla-certified installer
- Limited third-party inverter compatibility
- Longer wait times due to demand
Real-world performance
Power output
The Powerwall 3's 11.5kW peak output is industry-leading, making it excellent for running high-draw appliances during blackouts. Most Australian homes can run air conditioning, cooking appliances and general loads at the same time.
Backup duration
With 13.5kWh of usable capacity, a single Powerwall can power an average Australian home for 8 to 12 hours during a blackout, depending on usage. Multiple units can be stacked for extended backup.
Efficiency
The 90% round-trip efficiency means you'll get back 90% of the energy you put in. This is competitive with other premium batteries like the BYD and Sungrow.
App experience
Tesla's app is still the best in the market. Real-time monitoring, Storm Watch alerts and time-based control for tariff optimisation are all included. The energy flow visualisation is particularly well designed.
Who should buy the Powerwall?
Best for
- Tesla EV owners wanting ecosystem integration
- Homes needing high backup power
- Those who value app experience
- Premium buyers wanting proven reliability
Consider alternatives if
- You're on a tight budget (consider BYD)
- You need specific inverter compatibility
- You want faster installation availability
How it compares
Tesla Powerwall 3
- Capacity
- 13.5 kWh
- Price
- $15,000-$17,000
- Peak power
- 11.5 kW
- Warranty
- 10 years
BYD Battery-Box
- Capacity
- 10.2-12.8 kWh
- Price
- $8,500-$14,000
- Peak power
- 5.1 kW
- Warranty
- 10 years
Sungrow SBR
- Capacity
- 9.6-25.6 kWh
- Price
- $7,500-$10,500
- Peak power
- 6.6 kW
- Warranty
- 10 years
Other battery reviews
BYD Battery-Box
$8,500 to $14,000 installed
Enphase IQ Battery
$14,000 to $15,000 installed
All battery reviews
Every battery we have reviewed
Price a Powerwall 3, with an expert to check the quote
One Why Solar Approved installer, one free written quote, and fifteen minutes with a solar expert before you sign. Ask for the Powerwall 3, with the federal rebate shown on the quote. Free, no obligation.