Tesla POWERWALL 2 AC User manual

Powerwall 2 AC Installation Manual
with Backup Gateway 2
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For the latest Powerwall installation documents in all supported languages, visit:
www.tesla.com/support/powerwall.
To secure the full 10-year product warranty, Powerwall must be registered by completing the
commissioning process and sending system information to Tesla.
Product Specifications
All specifications and descriptions contained in this document are verified to be accurate at the time of
printing. However, because continuous improvement is a goal at Tesla, we reserve the right to make
product modifications at any time.
The images provided in this document are for demonstration purposes only. Depending on product version
and market region, details may appear slightly dierent.
Errors or Omissions
To communicate any inaccuracies or omissions in this manual, send an email to: energy[email protected].
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following are trademarks or registered trademarks of Tesla, Inc. in the United States and other countries:
Tesla Tesla Motors Powerwall
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herein does not imply sponsorship or endorsement of their products or services. The unauthorized use of
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Please contact your local authority for further details of your nearest designated collection point.
Penalties may be applicable for incorrect disposal of this waste, in accordance with you national legislation.
For Professional Users in the European Union
If you wish to discard electrical and electronic equipment (EEE), please contact your dealer or supplier for
further information.
For Disposal in Countries Outside of the European Union
This symbol is only valid in the European Union (EU). If you wish to discard this product please contact
your local authorities or dealer and ask for the correct method of disposal.

General Warnings and Information................. 3
Specifications.......................................................... 5
Powerwall Specifications.....................................................5
Backup Gateway 2 Specifications....................................7
Registering Powerwall......................................... 8
Site Requirements and Pre-Installation
Guidance................................................................... 9
Powerwall and Backup Gateway 2 Installation
Requirements...........................................................................9
Powerwall Physical Requirements................................. 10
Powerwall Identification......................................................11
Powerwall Optimum Temperature Range.................... 11
Preparing for Installation...................................12
In the Powerwall Box...........................................................12
In the Powerwall Accessory Bag................................... 12
In the Backup Gateway 2 Box.......................................... 13
In the Backup Gateway 2 Accessory Bag.................. 13
Required Tools....................................................................... 14
Required Supplies................................................................ 14
Optional Accessory Kits and Orderable Parts...........14
STEP 1: Plan the Installation Site.....................16
Choose a Location............................................................... 16
Choose Powerwall Cable Entry....................................... 16
Choose Backup Gateway Cable Entry..........................16
Plan the Electrical Service Connection to Backup
Gateway....................................................................................16
Plan Amount and Size of Conduit or Raceway......... 16
Plan Distance Between Components............................17
STEP 2: Mount Powerwall and the Backup
Gateway................................................................... 18
Anchor the Powerwall Mounting Bracket....................18
Mount Powerwall on the Bracket....................................19
Mount the Backup Gateway.............................................22
STEP 3: Configure the Backup Gateway for
Wiring...................................................................... 24
Remove Neutral-Ground Bonding Strap from
Backup Gateway if Not Installed as Service
Equipment..............................................................................24
STEP 4: Make AC Power Connections.........25
Install Main Breaker in Backup Gateway.....................25
Make AC Power Connections to Supply and Load
Panels....................................................................................... 25
Install Optional Internal Panelboard in the Backup
Gateway...................................................................................27
STEP 5: Make Communications Connections
....................................................................................29
Connect Powerwall to the Backup Gateway.............29
Install Optional Remote Disable Switch......................32
STEP 6: Install Energy Metering for the
System.....................................................................34
About Energy Metering.....................................................34
Site and Solar Metering for Backup Gateway 2.......34
Install Tesla 100A CTs....................................................... 35
STEP 7: Complete the Installation................ 36
Plan Internet Connection for the Backup Gateway 2
.................................................................................................... 36
Close the Wiring Compartments and Turn the
System On.............................................................................. 36
STEP 8: Commission the System...................38
Commission the System....................................................38
Finish and Demonstrate the Installation.................... 40
Troubleshooting...................................................................40
Technical Support............................................................... 40
Maintenance.......................................................................... 40
Appendix A: Powerwall Mounting Details......
.....................................................................................41
Powerwall Space Requirements......................................41
Mounting Bracket Anchoring Details...........................42
Appendix B: Wiring Reference...................... 45
Powerwall Wiring.................................................................45
Backup Gateway 2 Wiring................................................46
Backup Gateway 2 Communication Wiring...............47
Eaton Breakers..................................................................... 48
Appendix C: System Wiring Diagrams........49
Overview.................................................................................49
Whole-Home Backup.........................................................49
Partial-Home Backup......................................................... 52
Appendix D: Configure Energy Metering........
....................................................................................56
CONTENTS

Appendix E: Installing a Neurio Energy
Meter........................................................................ 57
Neurio Energy Meter Overview...................................... 57
Wireless Communication to the Backup Gateway.......
.................................................................................................... 57
Wired Communication to the Backup Gateway...... 57
Meter Voltage Taps............................................................. 59
Current Transformer Placement.....................................59
Voltage Tap and Current Transformer Connections....
.................................................................................................... 59
Meter Placement and CT Wire Lengths......................60
Current Transformer Orientation...................................60
Current Transformer Capacity........................................60
Metering Split-phase Solar with a Single CT.............62
Installing the Meter............................................................. 62
Appendix F: Feature Notes............................. 63
Configuring Site Limits......................................................63
Configuring Conductor Export Limits......................... 63
Load Shedding..................................................................... 63
Appendix G: Installation Troubleshooting......
....................................................................................65
Accessing the Powerwall User Interface.....................65
Updating Firmware............................................................. 65
Configuring Energy Meters..............................................65
Reset the Backup Gateway..............................................67
Power Cycle the System................................................... 67
Appendix H: Multi-Powerwall Installations.....
....................................................................................68
Electrical Equipment Sizing and Overcurrent
Protection...............................................................................68
Multi-Powerwall Installations with the Stack Kit......73
In the Powerwall Stack Kit.............................................. 73
Required Tools.....................................................................73
Site Requirements..............................................................74
Installation Instructions....................................................74
Step 1: Prepare for Installation.....................................75
Step 2: Choose a Wiring Option................................. 76
Step 3: Prepare for Concealed Wiring......................76
Step 4: Join the Powerwall Units................................79
Step 5: Wire the Powerwall Units...............................83
Step 6: Close the Wiring Compartments and
Replace the Covers..........................................................84
Step 7: Turn On and Commission the System....... 86
Appendix J: Revision Log................................ 87
CONTENTS