Until now, installers have had to purchase the Powerwall directly from Tesla and could not buy it from a wholesaler. Only Tesla Powerwall certified installers can install the system. The standard capacity of the system is 13.5 kilowatt hours, making it ideal for single- and two-family homes.
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In total, up to ten Tesla storage units can be connected together. The Powerwall is AC-coupled and can be combined with all common inverters, for example with devices from manufacturers such as SMA, Solaredge, Fronius, Kostal, Sungrow or Goodwe. The continuous output is 4.6 kilowatts. Since 2019, the device is also capable of providing emergency power with the Backup Gateway 2. Installers can mount the storage unit both indoors and on an external wall, meaning that the device can withstand temperatures from minus 20 to 50 degrees Celsius. The device is monitored via the Tesla app. (mfo)
