Powerwall 3 is a fully integrated solar and battery system. The home's PV array is connected
directly to Powerwall 3, which converts solar energy and stores it for future use. Powerwall 3 is installed with Backup Gateway
2 to control the system's connection to the grid and monitor home energy consumption.
Figure 1. Example System Diagram
The following table outlines the key Tesla components in a
standard Powerwall 3 system.
Tesla Components
Tesla Part Numbers
Component
Description
1707000-xx-y
Powerwall 3 is an integrated solar and battery system that converts
energy from solar panels to be used by the home, and stores excess energy
for future use. Every system contains at least one Powerwall 3, with additional Powerwall 3 units and/or Expansion units installed depending on the home’s solar
system size and/or energy consumption.
1807000-xx-y
Expansion unit is mounted behind Powerwall 3 unit
Powerwall 3Expansion is a battery that provides additional storage for a Powerwall 3 system. Because the Expansion does not include an inverter, it cannot be installed without Powerwall 3. Solar cannot be connected to an Expansion unit.
1152100-xx-y
Backup Gateway 2 monitors energy usage and manages the transition
to and from backup operation.