Tesla Powerwall 2 Installation Manual: Your Detailed Guide

Key Takeaways

• Proper planning is crucial to ensure the Powerwall is installed on a sturdy, secure surface and away from hazards like flooding or vehicle traffic. Whether mounted on wood, concrete, or metal studs, the structure must support the unit's weight. Read more about the Tesla Powerwall 2 Installation Manual to find detailed spacing requirements and placement guidelines.

• The Backup Gateway facilitates energy management and backup power during outages. The manual provides step-by-step instructions on wiring, configuring the Neutral-Ground Bonding Strap, and connecting AC power, ensuring safety and compliance with local codes. Explore the full guide to master these steps with diagrams and best practices.

• For optimal performance and warranty compliance, connecting the Backup Gateway to Wi-Fi or Ethernet is essential. The system's boot-up sequence, circuit breaker labelling, and final checks ensure smooth operation. Learn more about the connectivity setup and post-installation steps to complete your Powerwall installation.

Tesla Powerwall 2 installation manual. Source: Solar Choice

Introduction to Tesla Powerwall 2

The Tesla Powerwall 2 is a smart battery for your home that stores energy, such as solar panels, so you can use it whenever you need it — for example, at night or during a power outage. It helps you save money on electricity and gives you more control over your energy use.

It comes with built-in energy tracking and smart controls that you can customise through the Tesla app. Over time, it learns your energy habits and gets updates to improve its features, similar to how your phone updates itself.

The battery is designed to work safely and automatically. It manages charging and discharging all on its own with special internal systems, so you never have to mess with it. The whole unit comes ready to use, mounts on the wall, and doesn’t need any maintenance during its lifespan. It’s built to be reliable, hands-off, and user-friendly.

The Tesla Powerwall 2 is a home battery that has a 13.5 kWh capacity (enough to power essential appliances for hours) and a 5 kW continuous power output, designed to store energy for backup power and to make the most of your solar system. However, its features are far more advanced:

• Backup Power: It keeps your home powered during outages or blackouts, so you’re not left in the dark.

• Solar-Friendly: It works with your solar panels, storing extra energy generated during the day so you can use it at night or when the grid is down.

• AC-Coupled: If you already have a solar system, no worries—it can easily integrate with it.

• Smart Monitoring: The Tesla app allows you to see how much energy your home is using, how much solar power you’re generating, and how much is stored in the Powerwall.

• Backup Gateway: This smart component manages the system, detects outages, and automatically switches to backup power when needed.

• Generous Warranty: It’s built to last and its 10-year warranty covers both regular solar use and backup scenarios.

• Affordable Battery Tech: It uses NMC (Nickel Manganese Cobalt) battery chemistry, which helps keep costs lower without sacrificing performance.

Specifications of Tesla Powerwall 2. Source: Clean Energy Reviews

You can check for its specifications here.

Preparation Before Installing Tesla Powerwall 2

In this Tesla Powerwall 2 installation manual, the first thing is to equip the right tools, safety gear, and preparation in place to make the process smooth and safe. Here's what you need to prepare:

General Tools and Equipment

• Safety Gear: Always wear personal protective equipment (PP, such as safety glasses, gloves, and protective footwear.

• Basic Tools: A drill (with the right drill bits), a torque screwdriver (with a T20 Torx bit), and a small flathead screwdriver (2 mm) for wiring.

• Wire Tools: Wire strippers and cutters that work with wires ranging from 24 AWG to 250 kcal (0.2 mm² to 120 mm²).

• Measuring Tools: A level, stud sensor, tape measure, pencil, painter's tape, and flashlight are essential for accurate placement.

• Electrical Testing Tools: A multimeter and loop impedance tester are critical to ensure proper electrical connections.

• Documentation: A digital camera or smartphone can help document the installation for future reference.

Understanding the powerwall structure is crucial for installation. Source: Energy Library - Tesla

Powerwall-Specific Tools

• Large Flathead Driver Bit: Specifically a 5 mm bit, used for the Earth terminal on the Powerwall.

• Lift Equipment: Since the Powerwall weighs about 125 kg, you’ll need a lifting device capable of supporting this weight and raising it to 1.5 meters. A ratcheting strap is also helpful to secure the unit during the lift.

Warning: The Powerwall is heavy. Wear protective footwear and gloves, and ensure enough trained personnel are available to move and position the unit safely. Using lift equipment is strongly recommended.

Backup Gateway Installation Tools

• Torque Wrench: With 1/4-, 3/8-, and 5/16-inch Allen bits for making secure power connections.

• Socket Wrench: An 8 mm (5/16-inch) hex socket for additional adjustments.

• Backup Gateway Hardware: Ensure you have the necessary hardware for mounting the Backup Gateway, as outlined in the manual.

• Conduit and Raceway: Depending on local electrical codes, you may need conduits or raceways to run cables between the Powerwall and other components safely.

• Conduit Adapters: These are required to connect cables securely to the Powerwall wiring compartment and the Backup Gateway.

Cabling Requirements

To ensure the electrical and communication connections meet Tesla’s specifications:

• Power Cables: Use a minimum of 600 V-rated copper (Cu) cables for power connections between the Powerwall and Backup Gateway.

• Communication Cables: Use shielded copper cables that meet these specs:

• 600 V-rated

• 4-conductor (twisted pair optional) or double-insulated, with at least one twisted pair

• Class 1 Circuit Listed

• Outdoor-rated

• Overall shield with a drain

• Custom Cables: If using custom cables, they must be 16 AWG or 18 AWG and meet the wiring distance limits in the manual's "Plan Distance Between Components" section.

For a seamless, safe, and efficient setup without having to go through the Tesla Powerwall installation manual, selecting a certified professional installer is an ideal option. Here’s what to look for in a qualified provider in Australia.

• Tesla Certification: Look for installers who are Tesla-certified, as this ensures they’ve received specialised training and meet Tesla’s rigorous quality standards.

• Experience and Expertise: A professional installer should have a proven track record of successful Powerwall installations and expertise in working with solar and energy systems.

• Knowledge of Local Regulations: For a hassle-free installation, choose a provider who understands Australian electrical codes and energy compliance requirements like My Tesla Accessories.

• Custom Solutions: A good installer will offer tailored advice, whether integrating Powerwall with your existing solar setup or building a new energy system from scratch.

• After-Sales Support: Reliable providers don’t just stop at installation—they offer ongoing support, maintenance, and troubleshooting.

When it comes to Tesla Powerwall 2 installation manual Australia, My Tesla Accessories is the certified provider you can rely on. We combine expertise, customer-focused service, and in-depth knowledge of local standards to deliver a solution that helps you maximise energy savings and achieve true energy independence.

Visit their website today to learn more about their services and start your journey to a more sustainable future!

Tesla Powerwall 2 Installation Manual (Step-by-Step)

Step 1: Plan the Installation Site

The Tesla Powerwall 2 is a cutting-edge energy storage solution that provides reliable backup power by storing solar energy or electricity from the grid. 

Following this Tesla Powerwall 2 installation manual Australia is essential to ensure its performance, safety, and compliance with local regulations. Here’s how to plan the installation site effectively, step by step:

Choose the Right Location

Start by selecting a sturdy and secure spot to mount your Tesla Powerwall 2. The wall or surface must be capable of supporting its weight and meet one of these criteria:

• Wood Studs: The wall should have wood studs spaced at regular intervals.

• Plywood Sheeting: Ensure the plywood is thick enough to handle the load.

• Concrete or Masonry: A solid concrete or masonry wall is ideal.

• Metal Studs: If using metal studs, they must be of sufficient gauge to provide adequate support.

If you’re opting to floor-mount the Powerwall, make sure the surface is:

• Flat and Level: The Powerwall’s feet need stable and even support.

• Structurally Sound: Avoid areas prone to vibrations, instability, or unevenness.

• Safe from Hazards: The chosen location should be away from risks like vehicle traffic, flooding, or any physical damage.

Also, account for the required spacing around the unit. Refer to Appendix A of the Tesla Powerwall 2 Installation Manual for detailed mounting guidelines.

Mounting bracket anchoring on Tesla Powerwall 2. Source: Tesla Energy Library

Decide Cable Entry for Powerwall

Next, determine how the wiring will enter the Powerwall:

• Side Entry: Use a conduit fitting or cable gland to seal the wiring compartment.

• Rear Entry: Similar to side entry, ensure a conduit fitting or cable gland seals the wiring compartment.

Important Note: If the Powerwall is mounted on a wall with studs spaced 24 inches (610 mm) apart, back cable entry might be blocked. Always verify wall stud spacing before finalising the cable entry method.

Plan Backup Gateway Cable Entry

The Tesla Backup Gateway manages energy flow and system communication. You need to decide where the cables will enter the Backup Gateway:

• Entry Points: Cables can enter through the top, bottom, sides, or rear of the enclosure.

• Knockout Sizes: All cable knockouts are 3/4-inch in diameter but can be expanded to 2 inches.

Top Entry Note: If using the top entry, install a Tesla Top Hub to maintain enclosure protection. For reference, the part numbers for the Tesla Top Hub are:

• 2-inch kit: Tesla P/N 1549184-00-A

• 1 1/4-inch kit: Tesla P/N 1549184-01-A

Plan the Electrical Service Connection

The Backup Gateway is service entrance-rated, meaning it can directly connect to the main electrical service. When planning this connection:

• Overcurrent Protection: Ensure the Backup Gateway includes appropriate overcurrent protection.

• Main Circuit Breaker: It can handle a main circuit breaker rated between 100 and 200 amps. Make sure breaker sizing complies with the National Electric Code (or local regulations in your area, such as Australia’s electrical codes for Tesla Powerwall 2 installation).

Plan the Wiring Method

To ensure a smooth and code-compliant installation:

• Cable Requirements: Calculate the amount and size of cables needed. Consider local codes and fill limits.

• Conduit Adapter: In some cases, you may need an adapter between the Powerwall wiring compartment and the conduit to meet installation requirements.

Determine Distances Between Components

Proper spacing between system components ensures efficiency and safety. Check the Tesla Powerwall Wiring Diagram and the guidelines for maximum allowable distances between components. Use the table in the Tesla Powerwall 2 Installation Manual to calculate wire gauge and spacing based on your specific setup.

Check the wiring diagram on Tesla Powerwall 2 to calculate the spacing between components for installation. Source: Tesla Energy Library

Step 2: Mount Powerwall and the Backup Gateway

The next step in this Tesla Powerwall Installation Manual 2 is mounting the Tesla Powerwall 2 and Backup Gateway, a critical step in ensuring a safe and functional installation. 

Anchor the Powerwall Mounting Bracket

To start, securely attach the mounting bracket to the chosen wall. Follow these steps:

• Drill and Level: Use a drill and level to mount the bracket on the wall. Refer to Appendix A of the Tesla Powerwall 2 Installation Manual for specific details about fasteners and spacing.

Important Note: If using back cable entry, drill a hole in the wall that aligns with the back cable entry port.

• Verify Placement: Ensure the bracket is properly aligned and securely fastened. Consult the Tesla Powerwall Wiring Diagram for guidance on positioning and cable routing.

Mount Powerwall on the Bracket

Once the bracket is securely in place, follow these steps to mount the Powerwall:

• Switch Off Powerwall: Turn off the Powerwall to ensure safety.

Warning: Switching off Powerwall prevents it from forming a grid, but AC voltage may still be present from the grid. Ensure all equipment is safely de-energized before proceeding.

• Remove the Left Side Cover: Take off the left side cover of the Powerwall.

• Prepare for Cable Entry:

• Side Cable Entry: Remove the side cable entry door from the left side cover.

• Back Cable Entry: Remove the plug from the back cable entry port and place it in the side cable entry port. Ensure the plug is always in either the back or side cable entry port.

• Position the Powerwall:

• Use lifting equipment to bring the Powerwall close to the wall.

• Adjust the height so that the mounting cleats on the Powerwall are just above the flanges on the bracket.

• Engage the Bracket:

• Lower the Powerwall until the top cleat engages the top flange on the bracket.

• Align the bottom cleat with the bottom flange and lower the Powerwall fully. You’ll hear an audible click when the cleats lock into place.

• Note: To remove Powerwall later, insert a thin sheet of metal between the unit and the bracket to release the locking mechanism, and lift it straight up.

• Floor-Mounting (Optional):

• Use shims to level the Powerwall within +/–2 degrees side-to-side and +/–5 degrees front-to-back.

• If wall-mounting, remove the feet from the unit.

Mount the Backup Gateway

The Backup Gateway facilitates energy management and communication for the Powerwall system. Here’s how to mount it:

• Prepare Cable Access:

• Drill the necessary cable access holes in the Backup Gateway using a knockout kit. The knockouts are 3/4 inches in diameter but can be expanded to 2 inches if needed.

• Top Cable Entry: Remove the Top Hub Cap and install the Tesla Top Hub (P/N 1549184-00-A for 2-inch or P/N 1549184-01-A for 1.25-inch).

Remove the Top Hub Cab and replace it with the Top Hub. Source: Tesla Energy Library

Note: The Tesla Top Hub is required to maintain enclosure ingress protection.

• Mount the Backup Gateway Enclosure:

• Using a drill, level, and 1/4-inch screws, mount the enclosure vertically on the wall. Do not mount it horizontally or upside down.

• Use the provided sealing washers when attaching the enclosure to ensure a secure fit.

• Record the Serial Number:

• Locate the serial number on the label on the dead front cover of the Backup Gateway and record it for future reference.

Step 3: Configure the Backup Gateway for Wiring

Configuring the Backup Gateway correctly is a crucial step to ensure the safe operation of the Tesla Powerwall 2 system. Follow these instructions from the Tesla Powerwall 2 Installation Manual to prepare the Backup Gateway for wiring:

The Neutral-Ground Bonding Strap in the Backup Gateway ensures a proper connection between neutral and ground. This is critical for safe operation and compliance with local electrical codes. However, the bonding strap may need to be removed depending on the installation setup:

• When to Remove the Bonding Strap:

• The Neutral-Ground Bonding Strap is pre-installed at the factory and should remain in place when the Backup Gateway is installed as Service Equipment.

• If the Backup Gateway is not installed as Service Equipment, or if you need to test the system, you must remove the Neutral-Ground Bonding Strap.

• How to Remove the Bonding Strap:

• Use a 7/16-inch socket to remove the two nuts securing the Neutral-Ground Bonding Strap.

• Carefully detach the bonding strap and set it aside.

• If you need to reinstall the bonding strap later, torque the nuts to 65 in-lbs (7.4 Nm) to ensure a secure connection.

See Figure 1 in the Tesla Powerwall Wiring Diagram for the exact location of the Neutral-Ground Bonding Strap.

Find the Neutral-Ground Bonding Strap through the wiring diagram. Source: Energy Library - Tesla

Important Warning:

• A proper Earth connection is mandatory for safe operation in Backup Mode.

• Ensure the site has a local Earth connection, such as an Earth rod or ground electrode. This connection must comply with local codes (e.g., Australian electrical standards for Tesla Powerwall 2 Installation).

Step 4: Make AC Power Connections

Properly connecting the AC power is essential for the safe and efficient operation of your Tesla Powerwall 2 system. Follow these detailed instructions in this Powerwall 2 installation manual to complete the AC power connections safely:

Install Main Breaker in the Backup Gateway

If the Backup Gateway is installed as Service Equipment, a main breaker must be added. Here’s how to do it:

• Choose a Compatible Breaker: Use Eaton CSR, BW, or BWH-type breakers. Refer to the Tesla Powerwall Installation Manual for a list of compatible breakers.

• Remove Supply Lugs: Use a 7/16-inch hex socket to remove the S1 and S2 supply lugs.

• Install the Main Breaker: Position the main breaker and torque the S1 and S2 nuts to 65 in-lbs (7.4 N-m) using a 7/16-inch hex socket.

• Install Wire Lug Cover Caps: Cover caps are recommended anytime a main breaker is installed in the Backup Gateway.

Refer to Figure 1 in the Tesla Powerwall Wiring Diagram for visual guidance on removing and installing components.

Locate the main breaker in the backup getaway. Source: Energy Library - Tesla

Make AC Power Connections to Supply and Load Panels

To connect the Backup Gateway to the supply and load panels:

• Prepare the Wires:

• Strip the ends of the wires and insert them into the corresponding Backup Gateway terminal lugs.

• Use a torque tool to tighten the lugs according to the specifications in the Tesla Powerwall Installation Manual.

• Use copper or aluminium wires only.

• Connect Supply Conductors: Connect the supply wires to the Backup Gateway Supply terminals as per the Conductor Connections table.

• Connect Load Panel Conductors: Attach the home load panel wires to the Backup Gateway Backup terminals. Follow the Conductor Connections table for proper wiring.

• Optional Non-Backup Panel:

• For partial home backup (Non-Backup loads under 100 A), connect the Non-Backup panel to the Backup Gateway’s Non-Backup terminals (L1, L2, Neutral, and Ground).

• Circuits connected to the Non-Backup panel will not receive power when the system is off-grid but will still be metered during on-grid operation without additional hardware.

Important Warnings:

• De-energize Equipment: Always ensure all equipment is safely de-energized and locked out before working to avoid electrical shock hazards.

• Earth Connection: Never power on the system without a proper Earth connection at the Backup Gateway.

• Verify Connections: Incorrect wiring can cause electrical shock or equipment damage. Double-check all connections against the Tesla Powerwall Wiring Diagram and local codes.

Refer to Appendix B: Wiring Reference and Appendix C: System Wiring Diagrams for detailed wiring requirements, including wire colours and gauges.

Install Optional Internal Panelboard in the Backup Gateway

The Internal Panelboard kit (Tesla P/N 1529623-00-x) is a 200 A-rated accessory that supports up to 12 circuits. Here’s how to install it:

• Mount the Panelboard: Secure the panelboard inside the Backup Gateway using the provided M5x12 hex bolts.

• Connect the Panelboard:

• Backup Connection: Use the provided 105°C-rated CU wire jumpers to connect the L1 and L2 lugs on the panelboard to the Backup terminals.

• Non-Backup Connection: Connect the Non-Backup lugs to a branch breaker on the bussing (up to 100 A).

• Install branch breakers when connecting to Non-Backup lugs to accommodate wire gauge differences.

• Secure Breakers: Install the breaker hold-down bracket for back-fed or generation breakers using the provided M5-0.8x12 Philips head screws.

• Label Circuits: Place the adhesive circuit label on the dead front to clearly identify circuits.

Design Notes:

• The Internal Panelboard supports (6) 1-inch breaker spaces for a maximum of 12 circuits, with branch circuit breakers up to 125 A.

• The Powerwall’s connection to the Backup Gateway requires a 30 A breaker for circuit protection. Ensure compliance with the National Electric Code or other local regulations.

Step 5: Make Communications Connections

Establishing proper communication between the Tesla Powerwall 2 and the Backup Gateway is essential for system functionality and monitoring in the Tesla Powerwall 2 installation manual. Here’s a simple guide to making these connections:

Connect Powerwall to the Backup Gateway

• Check Local Requirements: Depending on your location, wiring can be installed through a conduit or a cable gland. Consult local electrical codes to determine the appropriate method.

• Conduit Installations:

• Run conduit as needed and attach a 1-inch conduit fitting to the inlet of the Powerwall wiring compartment.

• Ensure all conduit joints and outlets have smooth edges to avoid damaging the wiring.

• Run Wires: Run the 4-conductor communication cable, AC power conductors, and the equipment grounding conductor from the Backup Gateway through the conduit or cable gland into the Powerwall wiring compartment.

• Connect AC Power:

• Strip the ends of the AC conductors and attach them to the corresponding leads on the AC power harness.

• Plug the AC power harness into the AC connector inside the Powerwall wiring compartment. Make sure the connector clicks securely into place.

• Connect the Communication Cable:

• Strip and insert the ends of the 4-conductor communication cable into the provided 4-pin connectors:

• Use the black connector (from the accessory bag) for the Powerwall side.

• Use the pre-installed connector for the Backup Gateway side.

• On the Backup Gateway side, cut back the drain wire and ensure it is terminated only at the Powerwall chassis Earth terminal.

• Plug the 4-pin connectors into the corresponding sockets:

• On the Backup Gateway: Connect to the 4-pin socket labelled “Powerwall” and tighten the screws.

• On the Powerwall: Plug into the bottom 4-pin socket labelled “IN”.

• Terminating Resistor:

• On the Powerwall, plug the provided 4-pin connector with the 120-Ohm terminating resistor into the top socket labelled “OUT”.

• For multi-Powerwall installations, use this connector only in the last Powerwall in the chain.

• Ground Connection:

• Strip the end of the equipment grounding conductor and wrap the communication cable’s drain wire around it.

• Insert both wires into the Powerwall chassis Earth terminal, identified with the Earth symbol.

• Tighten the screw in the terminal to 4.5 Nm.

Refer to Appendix B: Wiring Reference and Backup Gateway 2 Communication Wiring for diagrams and specifications.

The Backup Gateway 2 Communication Wiring. Source: Energy Library - Tesla

Install Optional Remote Disable Switch

The Backup Gateway 2 can be configured to include a Remote Disable switch, which allows all connected Powerwalls to enter a safe, idle mode. Follow these instructions:

• Wiring the Remote Disable Switch:

• Remove the factory-installed jumper from pins 1 and 2 of the 5-position “AUX” connector inside the Backup Gateway.

• Using a minimum of 24 AWG conductors (maximum 16 AWG) and compliant wiring methods, connect pins 1 and 2 (labeled “SDO” and “SDI”) to a suitable disconnect switch.

• Operation:

• To Disable Powerwalls: Turn the switch to the OFF (open) position. All Powerwalls will go idle, regardless of grid status.

• To Resume Operation: If the grid is present, turn the switch to the ON (closed) position to resume normal operation. If off-grid, Powerwalls will resume only when the grid is restored, or the Backup Gateway receives a 12V jump start.

• Switch Requirements:

• Must be listed or recognised as an "Emergency Stop" device.

• Must be lockable in the OFF position to comply with local regulations.

• Must be outdoor-rated (NEMA 3R or higher).

• It should be installed near the utility meter for accessibility.

• Maximum wire run length: 150 feet (45 meters).

Refer to Appendix B: Wiring Reference and Figure 1 for the Remote Disable Switch wiring diagram.

The Remote Disable Switch wiring diagram. Source: Energy Library - Tesla

Step 6: Install Energy Metering for the System

Energy metering is a critical component of the Tesla Powerwall 2 system, enabling accurate monitoring of power flows and ensuring proper system functionality. 

Energy meters are used to measure voltage and current at specific points in the system. They provide visibility into power and energy data, allowing the Powerwall to operate efficiently. The two primary goals of energy metering are:

• Metering the Site:

• Site meters measure the overall power flow to and from the grid. This data reflects the total power usage and production for the entire site.

• Site meters must be installed upstream of all solar production, Powerwalls, and loads.

• Multiple physical Site meters can be combined if necessary to capture all power flows from loads, solar, and Powerwalls.

• Metering Solar Production:

• Solar meters monitor the output of PV inverters.

• Important: No loads or Powerwalls should be behind the Solar CTs, as this would lead to inaccurate measurements of solar production.

Using Backup Gateway 2 for Energy Metering

The Backup Gateway 2 simplifies energy metering by offering built-in options for both Site and Solar metering:

Internal Primary Meter (Meter X)

• This built-in Site meter can be used when the grid connection is at the Supply terminals of the Backup Gateway.

• No additional setup is required during installation if the grid connection is directly at the Supply terminals.

• If there are loads or solar upstream of the Supply terminals:

• Use Tesla 100 A CTs connected to the Internal Auxiliary Meter for loads under 100 A.

• Alternatively, install a Remote Energy Meter to measure the Grid connection point.

Internal Auxiliary Meter (Meter Y)

• Designed for metering solar circuits within the Gateway or nearby switchboards.

• Features three (3) internal CT connections that support Tesla 100 A CTs.

• The Accessory Kit includes one Tesla 100 A CT. Additional CTs can be ordered individually (Tesla P/N 1467316-00-x).

• Extending Tesla 100 A CTs:

• CTs can be extended up to 330 ft (100 m) using a twisted pair or the Tesla 100 A CT Extension (Tesla P/N 1467274-00-x).

• Use 20 AWG (0.5 mm²) conductors or larger.

• Ensure the extension wire’s voltage rating meets or exceeds that of adjacent circuits.

In some cases, internal meters within the Backup Gateway 2 may not be suitable due to the site layout. For example:

• When the distance exceeds the allowable limit for CT extensions.

• When the grid connection point cannot be measured using the internal meters.

In such cases, install Remote Energy Meters to measure power flows accurately. Refer to the Tesla Powerwall 2 Installation Manual for Remote Energy Meter specifications and installation guidelines.

Congratulations on reaching the final step of your Tesla Powerwall 2 installation! Completing the installation involves setting up the internet connection, securing all hardware, and powering the system. Here’s how to finish the process:

Step 7: Complete the Installation

Plan Internet Connection for the Backup Gateway 2

To ensure the customer has full system functionality and maintains the 10-year Powerwall warranty, internet connectivity is required. The customer can monitor their system through the Tesla App. Follow these guidelines:

• Best Connection Practices:

• Configure both Ethernet and Wi-Fi connections during the device setup for optimal performance.

• The Backup Gateway will automatically select the strongest available connection.

• Cellular Backup: Cellular connectivity is only available as a backup when both Ethernet and Wi-Fi connections are lost. It should not be relied upon as the primary connection method.

• Install Ethernet Connection: Use a CAT5 (24 AWG) cable at a minimum. If running an Ethernet cable directly to the customer’s network router is not possible, use Powerline Ethernet socket adapters.

Refer to Appendix B: Wiring Reference for the location of the Ethernet port in the Backup Gateway.

The wiring reference on Tesla Powerwall 2. Source: Energy Library - Tesla

Close the Wiring Compartments and Turn the System On

Before closing the hardware and powering up the system, ensure everything is properly sealed and secured:

• Document Wiring: Take clear photos of the completed wiring in the Powerwall, Backup Gateway, and main distribution board for records.

• Secure Connections:

• Verify that all conduit junctions and cable entry points are sealed and secure.

• Arrange the communication and AC power wires neatly inside the Powerwall wiring compartment.

• Replace Covers:

• Replace the Powerwall wiring compartment cover. Ensure it seats properly on the gasket for a complete seal. Tighten the fasteners with a Torx T20 bit to 1.5 Nm.

• Reattach the left side cover of the Powerwall by pressing the top into place and securing it along the length of the unit.

• Install the Backup Gateway’s dead front panel and secure it with the original screw. Mount the Backup Gateway door and latch it shut.

Note: If the Backup Gateway is installed outdoors or in a high-traffic area, the latch can be locked for extra security.

• Label Circuit Breakers: Use the provided breaker label sheet to clearly label all circuit breakers.

• Power On the System:

• Switch on the AC circuit breakers for the Backup Gateway and Powerwall.

Warning: After powering on the Backup Gateway, allow it to boot up for at least one minute. Do not interrupt the boot sequence by power cycling or resetting the system, as this can disrupt software initialisation.

• Turn on the Powerwall by flipping the switch on the right side of the unit to the ON position. Once communication with the Backup Gateway is established, the LED on the right side of the Powerwall will illuminate.

Note: The Powerwall’s On/Off switch includes a locking mechanism to prevent unauthorised use. Ensure the switch is unlocked before attempting to turn it on.

CAUTION: Always leave the site with the Powerwall breaker closed to maintain a base level of battery charge. Leaving the Powerwall disconnected from AC power for extended periods can increase the risk of damage.