Tesla
BatteriesTesla is an American electric vehicle and energy company that produces the Powerwall home battery system. The Powerwall includes an integrated inverter with 10-year warranty.
About Tesla Powerwall in Australia
Tesla is an American electric vehicle and clean energy company founded in 2003. The Tesla Powerwall is a rechargeable lithium-ion battery designed for home energy storage, first released in 2015. The Powerwall is one of the most recognised home battery brands in Australia.
The Powerwall 3 (released 2024) offers 13.5kWh of usable storage with an integrated solar inverter, delivering 11.5kW continuous power output. This is a significant upgrade from the Powerwall 2 (5kW continuous). Up to four Powerwall units can be stacked for larger homes.
Tesla Energy is available in Australia through Tesla Certified Installers. The Powerwall comes with a 10-year warranty covering both the battery and integrated inverter. Tesla uses its own app for monitoring and energy management, including Storm Watch alerts that pre-charge the battery before predicted severe weather.
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Tesla Key Features
13.5kWh Usable Capacity
Each Powerwall provides 13.5kWh of usable energy storage, enough to cover most homes through the evening peak and overnight.
11.5kW Continuous (PW3)
The Powerwall 3 delivers 11.5kW continuous output, enough to run most home loads including air conditioning and EV charging simultaneously.
Integrated Inverter (PW3)
Powerwall 3 includes a built-in solar inverter, eliminating the need for a separate string or hybrid inverter on new installations.
Tesla App
Real-time monitoring of solar production, battery status, home consumption, and grid usage. Includes Storm Watch and time-based control modes.
10-Year Warranty
10-year warranty guaranteeing the battery will retain at least 70% of its original capacity. Covers both battery cells and integrated inverter.
Stackable to 4 Units
Up to four Powerwall units can be installed together for 54kWh of total storage and 46kW of continuous power output.
Tesla Products Available in Australia
Powerwall 2 Series
Powerwall 3 Series
How Tesla Powerwall Compares to Other Batteries
| Feature | Tesla Powerwall 3 | BYD Battery-Box | Sungrow SBR |
|---|---|---|---|
| Capacity | 13.5kWh | 10.2–12.8kWh | 9.6–25.6kWh |
| Continuous Power | 11.5kW | 5.1kW | 6.4–12.8kW |
| Integrated Inverter | Yes | No (needs hybrid) | No (needs Sungrow SH) |
| Round-Trip Efficiency | 97.5% | 96% | 96% |
| Warranty | 10 years | 10 years | 10 years |
| Modular/Stackable | Up to 4 units | Yes (modular) | Yes (modular) |
The Powerwall 3 stands out for its integrated inverter and high continuous power output, making it a simpler installation for new solar+battery systems. BYD and Sungrow require a separate hybrid inverter but offer more flexible sizing through modular design. BYD is the most inverter-agnostic, working with Fronius, GoodWe, and others. Sungrow batteries pair exclusively with Sungrow hybrid inverters.
Customer Reviews
Frequently Asked Questions About Tesla
- helpHow much does a Tesla Powerwall cost in Australia?
- A Tesla Powerwall 3 typically costs $12,000–$16,000 fully installed in Australia (as of 2026). The price varies by installer, location, and installation complexity. This includes the Powerwall unit, gateway, and installation labour. Some states offer battery rebates that can reduce the cost: Victoria offers up to $2,950, and the ACT offers interest-free loans. Get multiple quotes to compare pricing in your area.
- helpIs the Tesla Powerwall worth it in Australia?
- Whether a Powerwall is worth it depends on your electricity rates, solar system size, and usage patterns. Homes with high evening usage (5+ kWh after sunset), low feed-in tariffs (under 5c/kWh), and time-of-use pricing benefit most. A typical Powerwall saves $1,000–$1,800 per year, giving a payback period of 8–12 years. The Powerwall makes stronger financial sense in states with battery rebates (VIC, ACT) or with very low feed-in tariffs.
- helpHow long does a Tesla Powerwall last?
- Tesla warrants the Powerwall for 10 years with at least 70% capacity retention. In practice, lithium-ion batteries typically last 12–15+ years before significant degradation. The Powerwall uses a thermal management system to maintain optimal operating temperature, which helps extend battery life. Actual lifespan depends on cycling patterns, ambient temperature, and depth of discharge.
- helpCan I use Powerwall without solar panels?
- Yes, a Tesla Powerwall can be installed without solar panels. In this configuration, it charges from the grid during off-peak rates and discharges during peak rates (energy arbitrage). However, the financial return is much lower without solar, as you are buying all energy from the grid rather than storing free solar energy. Most Powerwall installations are paired with a solar system.
- helpWhat is the difference between Powerwall 2 and Powerwall 3?
- The Powerwall 3 (2024) has the same 13.5kWh capacity as the Powerwall 2, but with major upgrades: 11.5kW continuous output (vs 5kW), an integrated solar inverter (Powerwall 2 needs a separate inverter), 97.5% round-trip efficiency (vs 90%), and a more compact form factor. The Powerwall 3 is the current model available for new installations in Australia.
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