Installing Powerwall with Backup Gateway 2

A Powerwall system consists of at least one Powerwall, a Tesla Gateway and the electrical hardware required by the home such as a meter, main panel and solar inverter. Powerwall can be wall-mounted or floor-mounted, and both Powerwall and the Gateway have multiple cable entry points for flexible installation. Installers can use a smartphone, tablet or laptop to commission the Powerwall system. Installation should be performed by a certified electrician.

For Powerwall installations with Backup Gateway 1, see the Backup Gateway 1 Installation Page.

Installation Manual

Installers should download and fully review the Powerwall 2 AC with Backup Gateway 2 Installation Manual prior to installing a Powerwall system. The Powerwall with Backup Gateway 2 Installation Quick Guide is a lightweight reference with simple system diagrams and installation steps, and is designed for mobile use.

Powerwall 2 Product and Features Overview

 

 

 

Learn about Powerwall, including its design, key features and the primary benefits for Powerwall customers. This video provides an overview of the complete Powerwall system, and explains how the system can be configured for either whole home or partial home backup.

Introduction to the Backup Gateway 2

 

 

The Backup Gateway controls the connection between the Powerwall system and the grid. This video explores the Backup Gateway enclosure and explains the function of the main components.

Installing the Backup Gateway 2

 

 

Plan the Backup Gateway installation, mount the enclosure and configure the Backup Gateway for wiring. This video includes selecting and preparing cable entry locations, installing a main circuit breaker when the Backup Gateway acts as the main service disconnect (or removing the neutral-ground bonding strap when it does not) and making AC power connections.

Mounting Powerwall

 

 

Transport Powerwall safely to the site, choose a mounting location, install the wall bracket and mount Powerwall to the bracket.

Wiring Powerwall

 

 

Connect the high voltage power to Powerwall, and connect Powerwall to the Backup Gateway via the communication wiring.

Installing Energy Metering

The Internal Energy Metering and Remote Metering videos introduce the energy monitoring equipment built into the Backup Gateway 2 as well as remote energy monitoring equipment that can be installed when needed.

Energy monitoring is required for the Powerwall system to function; power flow information, including the energy being produced by solar and the energy being consumed by the home, is provided to the Backup Gateway, which uses that information to control Powerwall charge and discharge. The Backup Gateway relies on accurate information to control the Powerwall system as defined by the customer using the Tesla app.

Internal Metering with Gateway 2

 

 

Backup Gateway 2 includes two internal meters which can be configured in the Commissioning Wizard to monitor different types of loads. This video explains which types of loads each meter can monitor, how to install current transformers (CTs), best practices for solar monitoring and steps for verifying your work.

Remote Metering

 

 

For system configurations in which site power, conductor export limits, and/or generation sources cannot be monitored by the Backup Gateway 2 internal meters, a remote meter must be installed. This video introduces the remote Neurio meter and provides instructions for installing the meter and CTs, as well as configuring CTs in the Commissioning Wizard.

Commissioning the Powerwall System

The following steps outline connecting the Gateway to the internet and logging into the Commissioning Wizard; once logged into the Wizard, follow the prompts in the Wizard to complete the commissioning process.

  • Step 1 Establish an internet connection for the Gateway via Ethernet, Wi-Fi or cellular network.
  • Step 2 Power on the system by turning breakers on for the Gateway, Powerwall, Solar and home loads.
  • Step 3 Connect to the Gateway Wi-Fi named “TEG-###” from your smartphone or laptop where ### is the last 3 numbers of your Gateway serial number.
  • Step 4 Proceed past security certificate notification (Powerwall is secure but does not have a certificate that web browsers recognize).
  • Step 5Open a web browser and enter http://TEG-### in the address bar.
  • Step 6 Run the wizard by logging in with your company email and password which is “S” followed by the Gateway serial number.

Note: See the Installation Troubleshooting appendix in the Powerwall 2 AC Installation Manual for troubleshooting tips on accessing the Commissioning Wizard, updating the Gateway firmware and configuring energy meters.