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Each expansion unit adds another 13.5 kWh of storage capacity to the original installation, with a maximum of three such units connected to a single Powerwall. The new product, already available in the US, is lower in cost and cuts installation time in half, to 22 minutes.
Tesla has added a new product to its residential battery energy storage offering, making it possible for Powerwall 3 owners to expand their systems more affordably and efficiently.
Like the Powerwall 3, the DC expansion unit has a power capacity of 13.5 kWh. However, it does not include some expensive components, such as an inverter, making it $1,000 cheaper than a regular Powerwall 3.
Powerwall 3 owners can add up to three expansion units to increase the capacity of their system. In such a configuration, the original Powerwall 3 handles power conversion, site control, and solar coupling.
In addition to lower cost, the new product allows homeowners to expand the capacity of their Powerwall 3 home storage systems in less time.
As seen in a video posted on X, the floor-mounted extension system can be installed in just 22 minutes, compared to the 45 minutes it takes for a normal Powerwall 2 installation. The wall-mounted extension unit would take 26 minutes to install.
The Powerwall 3 DC expansion unit is currently only available in the United States.
Tesla launched the latest iteration of its Powerwall earlier this year, nearly a decade after releasing the Powerwall 1 in 2015 and the Powerwall 2 in 2017. The product first went on sale in the United States, and was subsequently rolled out in Canada, Germany, the United Kingdom, Australia and New Zealand.
Unlike the Powerwall 2, the new product features a built-in solar inverter. The Powerwall 3 also offers more than twice the power of the Powerwall 2, with a continuous peak output of 11.4 kW. |
