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US · est. 2003
Tesla, founded in 2003 in Palo Alto, California, initially focused on electric vehicles but expanded into clean energy solutions, including solar batteries, through its acquisition of SolarCity in 2016. The company leverages its expertise in lithium-ion battery production from its Gigafactories to deliver integrated systems that emphasize energy independence and smart grid interaction. Tesla batteries integrate tightly with solar setups, with software-driven optimisation through features like time-of-use shifting and virtual power plant participation. In WA, the Powerwall 3 is a solar inverter plus battery, AC-coupled when added to an existing system, and it is not eligible for the WA Residential Battery Scheme rebate. In Australia, the Powerwall is installed by Tesla-certified installers, and Tesla is listed on NASDAQ under the ticker TSLA. While the systems offer high power output and scale to four Powerwall 3 units plus three Expansion units in one Australian system, users should note that real-world efficiency can vary based on installation quality. Tesla's Australian warranty covers the Powerwall 3 for ten years from installation, with 70% of its 13.5 kWh rated capacity retained at ten years, on the conditions in the warranty document, including keeping the unit connected to the internet.
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Source: www.tesla.com/en_AU/powerwall-customer-support · verified 08/05/2026