Tesla Powerwall. Seamless power.

Whether a Tesla Powerwall is worth the premium depends on what you value in a home battery. Powerwall 3 offers 13.5kWh of usable capacity with a built-in inverter, so it replaces both the battery and the solar inverter in one unit and keeps the installation cleaner. It adds Storm Watch, which charges the battery ahead of forecast severe weather, and seamless Tesla app integration for real-time monitoring of solar, battery and grid usage. For Australian homeowners who want a premium, fully-integrated system with well-developed software and a single point of control, the Powerwall is a benchmark product. Whether that premium suits you comes down to your daily energy use, how much you value backup and app features, and how the total installed cost compares once the federal Cheaper Home Batteries rebate is applied. Mission Green can model this honestly against your bills at a free assessment.

The number of Powerwalls you need depends on your household's energy use and how much backup you want. Most Australian homes are well served by a single Powerwall, which provides 13.5kWh of usable capacity — typically enough to store surplus solar during the day and cover overnight usage plus backup essentials such as the fridge, lights and Wi-Fi during an outage. Larger homes, properties with high evening consumption, electric vehicles, or households wanting whole-home backup for longer grid outages can stack up to 4 Powerwalls, each unit adding both capacity and power output. The right count is best confirmed against your actual electricity bills and daily usage pattern rather than a rule of thumb. Mission Green reviews your consumption at a free assessment and recommends the smallest configuration that genuinely meets your goals, so you are not paying for storage you will not use.

Yes, a Tesla Powerwall can work with non-Tesla solar. Powerwall 3 is designed to be compatible with most existing rooftop solar systems, so you generally do not need to replace panels from another brand to add battery storage. Because Powerwall 3 includes a built-in inverter, the way it connects depends on your current setup — for a new solar-plus-battery install it can act as the system inverter, while an existing system with its own working inverter is typically integrated alongside it. The right approach comes down to your panels, inverter age and switchboard, which is why an on-site assessment matters. Mission Green reviews your current solar, checks compatibility, designs the integration and handles the full installation and commissioning, so you deal with one accredited installer end to end. If your existing system is not a good fit, we will tell you honestly at your free assessment before any work begins.

The Tesla Powerwall warranty is a manufacturer's warranty that runs for 10 years from installation. Over that period, Tesla warrants that the Powerwall will retain at least 70% of its original usable capacity, which sets a clear floor on the natural battery degradation that all lithium batteries experience with use over time. The warranty covers manufacturing defects and this capacity retention under Tesla's stated terms and conditions. In Australia, this manufacturer's warranty applies in addition to your rights under Australian Consumer Law, which are not limited by it. When Mission Green installs your Powerwall, we act as your single point of contact — coordinating directly with Tesla and handling any warranty claim on your behalf so you are not chasing multiple parties. For full details, including specific exclusions and claim conditions, always refer to Tesla's current warranty document supplied with your system.