Tesla Powerwall 2 Installation Manual
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Tesla Powerwall 2 Installation Manual

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Powerwall 2 AC Installation Manual
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Summary of Contents for Tesla Powerwall 2

  • Page 1 Powerwall 2 AC Installation Manual With Backup Gateway 2...
  • Page 2 For of printing. However, because continuous proper treatment, recovery and recycling, please improvement is a goal at Tesla, we reserve the take this product(s) to designated collection right to make product modifications at any time.
  • Page 3 Powerwall, potentially rendering it inoperable. IMPORTANT SAFETY INSTRUCTIONS This manual contains important instructions for the Tesla Powerwall 2 AC and Backup Gateway that must be followed during installation and maintenance of the system. SYMBOLS USED...
  • Page 4 Powerwall, or expose Powerwall to flammable carried out only by a competent electrician or harsh chemicals or vapors. who is certified by Tesla and who has been CAUTION: Do not use fluids, parts, or trained in dealing with low voltage electricity.

  • Page 5: Specifications

    Specifications Backup Gateway 2 Electrical Specifications Powerwall 2 AC Electrical Specifications Maximum Overcurrent 100 A Usable Energy 13.5 kWh Protection Device (single-phase service) AC Voltage (Nominal) 230 V 80 A Maximum Continuous Current 16 A (UK G98) (2- and 3-phase service) 25 A (UK G99;...

  • Page 6: Registering Powerwall

    Tesla. If an Internet connection is not established or is interrupted for an extended period, and Tesla is unable to contact the owner, the warranty may be limited to 4 years. To ensure that the owner can receive the full 10-year warranty, be sure to complete the commissioning process so that registration information is sent to Tesla.
  • Page 7 Figure 1: Powerwall 2 AC and Backup Gateway 2 Dimensions Powerwall Physical Requirements Powerwall can be mounted on a floor or wall, and includes a mounting bracket to support either configuration. Mounting Powerwall must follow the guidance outlined in this document. Mounting...
  • Page 8 • For hot climates Tesla recommends keeping Powerwall out of direct sunlight. Installation in full sun raises the temperature inside the enclosure above ambient temperature. This temperature rise is not a safety risk, but may impact battery performance.

  • Page 9: Installation Quick Reference

    (2) 25-mm (1) 35-mm rubber (1) drillable threaded (1) T20 Torx Wiring compartment (1) Safety Instruction reducing grommet cable gland driver bit cover with (4) screws document washers Powerwall 2 AC Installation Manual...
  • Page 10 (1) CT extension cable harness (3) ¼-inch rubber boned (1) Adhesive circuit label (5) 8mm backplate nuts (3m) stainless steel washers (1) M25 communication gland and insert (1) Solar CT (100A, split-core) (1) Circuit breaker blanking hole filler set Powerwall 2 AC Installation Manual...
  • Page 11 Minimum 300 V rated 4-conductor or double-insulated (with one twisted pair) shielded copper (Cu) cable (for communication connection between Powerwall and the Backup Gateway) • Minimum 600 V rated copper (Cu) cable (for power connections to Powerwall and the Backup Gateway) Powerwall 2 AC Installation Manual...
  • Page 12 Mount Powerwall Bracket Switch Powerwall Off Remove Left Side Cover CLICK Configure for Side or Back Cable Entry Mount Powerwall Drill Cable Entry Holes Mount Backup Install Backup Gateway in Backup Gateway Enclosure Gateway Enclosure Backplate Assembly Powerwall 2 AC Installation Manual...
  • Page 13 Conductors Connect Home Load Panel Conductors Connect Non-Backup Panel Conductors Install Generation Breakers Connect AC Power to Powerwall Connect Communication Wiring Connect Communication Wiring in Backup Connect Communication Wiring in Gateway Powerwall Install Terminating Resistor Powerwall 2 AC Installation Manual...
  • Page 14 Backup Gateway dead front (previous step) Follow the instructions in the Locate the Wi-Fi password on the Backup Gateway Establish Communication with Backup Commissioning Wizard to dead front Gateway and Connect to Internet complete Commissioning Powerwall 2 AC Installation Manual...

  • Page 15: Table Of Contents

    Configuring Energy Meters ..................................52 Power Cycle the System....................................53 Appendix H. Multi-Powerwall Installations............................54 Multi-Powerwall Installations with Backup Gateway ........................54 Multi-Powerwall Installations with the Stack Kit ..........................59 Appendix I. Revision Log ..................................70 Powerwall 2 AC Installation Manual...

  • Page 16: Installation Instructions

    CAUTION: Failure to follow minimum cable size and length requirements may result in intermittent or unreliable operation of the Powerwall system. In systems that do not meet these minimum requirements, performance issues may arise even after successful commissioning. Powerwall 2 AC Installation Manual...

  • Page 17: Step 2. Anchor The Powerwall Mounting Bracket

    2. For back cable entry installations, drill a hole in the wall corresponding to the back cable entry port. 1092170-XX-H and lower 1092170-XX-J and higher 2012170-XX-B and lower 2012170-XX-C and higher Figure 4: Location of Back Cable Entry Port in Relation to Bracket Powerwall 2 AC Installation Manual...

  • Page 18: Step 3. Mount Powerwall On The Bracket

    4. For back cable entry installations, remove the plug from the back cable entry port and place it in the side cable entry port. Note: The plug must always be placed in either the back or side cable entry port. Powerwall 2 AC Installation Manual...
  • Page 19 8. If floor-mounting Powerwall, use the provided shims to ensure that Powerwall is level. The unit should be level within +/ 2 degrees side-to-side and within +/ 5 degrees front-to-back. 9. If wall-mounting Powerwall, remove the feet from the unit (applicable only to updated versions of Powerwall, see Figure Powerwall 2 AC Installation Manual...

  • Page 20: Step 4. Mount The Backup Gateway

    CAUTION: To ensure IP55 ingress rating is maintained, the enclosure must only be mounted at these three points. Figure 7: Backup Gateway Enclosure Mounting Holes CAUTION: The sealing washers must be installed to guarantee IP55 ingress rating (see Figure 7, right). Powerwall 2 AC Installation Manual...
  • Page 21 Figure 8: Backplate Orientation for Bottom Cable Entry (left) or Top Cable Entry (right) 4. Locate the Backup Gateway serial number on the label on the dead front cover. Record the serial number for reference. Powerwall 2 AC Installation Manual...

  • Page 22: Step 5. Verify Neutral-Earth Bonding Scheme And Install Earthing Rod

    Verify that the system is properly earthed and that the correct Neutral-to- Earth bonding scheme meets regional and local requirements. Powerwall 2 AC RCD and Fault Protection Application Note for additional information on earthing and fault protection.

  • Page 23: Step 6: Make Ac Power Connections To Supply And Load Panels

    Relocate the site-level RCD into the Backup Gateway enclosure after • Use a Type-S time-delayed RCD upstream of Backup Gateway Powerwall 2 AC RCD and Fault Protection Application Note for additional information. 3. Connect the home load panel conductors to the Backup Gateway Backup terminals according to Figure 10 and the accompanying table.
  • Page 24 4 Nm Non-Backup 35 mm 12.5 mm 4 Nm Home (Backup) 35 mm 12.5 mm 4 Nm Neutral terminal bar 25 mm 12.5 mm 4 Nm PE terminal bar 25 mm 12.5 mm 4 Nm Powerwall 2 AC Installation Manual...

  • Page 25: Step 7. Install Powerwall And Generation Breakers In The Backup Gateway

    WARNING: Installing 3-phase PV inverters or 3-phase equipment on the Backup side may result in equipment damage during off-grid operation. 3-phase PV inverters and 3-phase equipment should always be installed on the Non-Backup side of the Backup Gateway. Powerwall 2 AC Installation Manual...

  • Page 26: Step 8. Connect Powerwall To The Backup Gateway

    5. Plug the AC power harness into the AC connector in the Powerwall wiring compartment. Ensure that the connector clicks into place. Figure 12: Powerwall 2 AC Power Harness Connection 6. On each end of the 4-conductor communication cable, strip and insert the wires into the provided 4-pin...
  • Page 27 12. Insert the grounding conductor and drain wire in the Powerwall chassis Earth terminal (Figure 14). The Earth terminal is identified with the following symbol: . Tighten the screw in the Earth terminal to 4.5 Nm. Figure 14: Powerwall Earth/Ground and Communication Connections with Terminating Resistor Powerwall 2 AC Installation Manual...

  • Page 28: Step 9. Install Energy Metering For The System

    CTs (one included in the Accessory Kit). Additional 100 Amp Tesla CTs (1112477-00-x) may be ordered individually. The Tesla 100A split-core CTs may be extended a max distance of 100 m by splicing twisted pair or using 3 m CT extension harnesses (1125547-03-x). CAT5 (0.2 mm , 24 AWG) conductors are suitable only up to 15 m extension.

  • Page 29: Step 10. Plan Internet Connection For Backup Gateway 2

    Step 10. Plan Internet Connection for Backup Gateway 2 Internet connectivity is required to receive the full 10-year Powerwall warranty, and for the customer to see their system in the Tesla App. For best performance, ensure Ethernet and Wi-Fi connections are both configured during commissioning.

  • Page 30: Step 11. Close The Wiring Compartments And Turn The System On

    Powerwall establishes communication with the Backup Gateway, the LED on the right side of Powerwall illuminates. CAUTION: Always leave site with Powerwall breaker closed for battery to maintain a base level of charge. Leaving the Powerwall disconnected from AC for extended periods increases risk of damage. Powerwall 2 AC Installation Manual...

  • Page 31: Step 12. Commission The System

    Launch a browser and enter the following IP address: https://192.168.90.2 Enter the Wi-Fi password (Figure Navigate to IP address https://192.168.91.1 NOTE: If the Backup Gateway Wi- power cycle the Backup Gateway using the Reset button, wait 2 minutes, and try connecting again. Powerwall 2 AC Installation Manual...

  • Page 32: Step 13. Finish And Demonstrate The Installation

    3. If necessary, ask the homeowner to download and install the Tesla mobile app and connect to the system. 4. Demonstrate the capabilities of the Tesla mobile app, such as how to change the operation mode.

  • Page 33: Troubleshooting

    Resources for Certified Installers, including service request forms and the latest versions of installation manuals, are available within the Tesla Partner Portal: https://partners.teslamotors.com If further support is needed, contact the Tesla Service team at the support phone number for your region. Support numbers for all regions are found at: https://www.tesla.com/support/powerwall This information is useful to have ready when contacting Tesla: •...

  • Page 34: Appendix A. Powerwall Mounting Details

    Appendix A. Powerwall Mounting Details Powerwall Space Requirements Figure 18: Powerwall 2 Mounting Bracket Dimensions and Space Requirements Minimum lateral wall space 960 mm Minimum clearance from left side (air intake) 50 mm Minimum clearance from right side (air exhaust)

  • Page 35: Mounting Bracket Anchoring Details

    Mounting Bracket Anchoring Details NOTE: The details below are minimum guidelines and are not guaranteed to be applicable. Refer to local building codes to ensure the use of appropriate fasteners. Refer to Powerwall 2 Anchorage Details for complete mounting information.
  • Page 36 10 mm sheet metal screws with washers per stud, of sufficient length to penetrate at least 3 threads beyond the studs. To attach the bracket to the struts, use at least four (one in each corner) 10 mm hexhead screws with washers and strut nuts. Powerwall 2 AC Installation Manual...

  • Page 37: Appendix B. Wiring Reference

    NOTE: Suitable wire ferrules may be used with Wago connectors, but are not required. CAUTION: For single-phase service, Neutral is not connected to the Powerwall N terminal. It is instead connected to the Powerwall L2 terminal. Powerwall 2 AC Installation Manual...

  • Page 38: Backup Gateway 2 Wiring

    2.5 35 mm (L1, L2, L3, N) Generation Neutral Bar (N) Blue 2.5 25 mm Non-Backup Loads and Brown, Black, Grey, Blue 2.5 35 mm Generation (L1, L2, L3, N) Switched Neutral-Earth link 16 mm Powerwall 2 AC Installation Manual...

  • Page 39: Backup Gateway 2 Communication

    0.2 1.5 mm RS485 LO #1 Black 0.2 1.5 mm GND (Earth)/Shield 0.2 1.5 mm RS485 HI #2 0.2 1.5 mm RS485 LO #2 Black 0.2 1.5 mm Jump Start 0.2 1.5 mm Black 0.2 1.5 mm Powerwall 2 AC Installation Manual...

  • Page 40: Appendix C. System Diagrams

    The following diagrams are intended for illustration purposes only. Drawings represent sample site layouts to show example system layout and metering. These diagrams should not be considered complete plan sets. Single-phase supply, single-phase solar, partial backup 2. Three-phase supply, three-phase solar, single-phase partial backup Powerwall 2 AC Installation Manual...
  • Page 41 Single-Phase Service (TN Network) Powerwall 2 AC Installation Manual...
  • Page 42 Three Phase Service (TN Network) Powerwall 2 AC Installation Manual...

  • Page 43: Appendix D. Grid Supply Fuse And Fuse Holder

    NOTE: For single-phase sites, a single 100 A fuse is required and for 3-phase sites three (3) 80 A fuses are required. Fuse type fuses should comply to BS 88.3, type aM, 22x58mm cartridge fuse. Powerwall 2 AC Installation Manual...

  • Page 44: Appendix E. Configuring Energy Metering

    Appendix E. Configuring Energy Metering Powerwall 2 AC Installation Manual...
  • Page 45 Figure 20: CT Installation Using Built-in CTs Figure 21: CT Installation with Upstream Loads or Generation Powerwall 2 AC Installation Manual...

  • Page 46: Appendix F. Installing A Neurio Energy Meter

    The Neurio Meter(s) connect to Backup Gateway 2 by wireless connection, or wired communication between the meter and the Backup Gateway using an optional 2-conductor meter communication harness (Tesla P/N 1133339-00-A). The Backup Gateway can support wired communication for up to two meters.
  • Page 47 (Harness shield) (Earth/Shield) 0.2 1.5 mm Meter #2 Meter Terminal Backup Gateway Meter Wire Gauge Communication Port Pin Communication Pin RS485 LO 0.2 1.5 mm RS485 HI 0.2 1.5 mm (Harness shield) (Earth/Shield) 0.2 1.5 mm Powerwall 2 AC Installation Manual...
  • Page 48 Phase Meter Voltage Tap Port Meter CT Port Site L1 Site L2 Site L3 Figure 25: Voltage Tap Port (left) and four CT Solar L1 Ports (right) on Bottom of Meter Powerwall 2 AC Installation Manual...
  • Page 49 • For a total extended length of up to 4.5 m: CT wiring can be extended with up to one 3 m (10 ft) CT extension kit (Tesla P/N 1125547-03-x) • For a total extended length of up to 15 m: CT wiring can be extended by using wire with the following properties: •...
  • Page 50 If a site has multiple solar inverters spaced far apart, or if a distribution board has two main breakers, a Y- splitter cable (Tesla P/N 1129625-00-x) can be used to connect two CTs on the same phase to a single meter port.
  • Page 51 Place a CT on the corresponding power wire in the main distribution board, after the utility meter and ahead of any loads. • If the site includes solar equipment, place an additional CT on the solar wire in the main distribution board. Powerwall 2 AC Installation Manual...

  • Page 52: Appendix G. Installation Troubleshooting

    For each CT, select the applicable function on the Current Transformers screen and perform the following steps to ensure it is in the correct location and orientation: • Adjust the Amps/kW slider to see what the CTs are reading. Powerwall 2 AC Installation Manual...

  • Page 53: Power Cycle The System

    To power the system off: Turn off solar equipment. 2. Turn off all Powerwalls. 3. Open breakers feeding Powerwall and solar. 4. Open breaker feeding Gateway. 5. Disconnect communication wiring. Reverse steps to power the system on. Powerwall 2 AC Installation Manual...

  • Page 54: Appendix H. Multi-Powerwall Installations

    Decrease the impedance of the site grid connection. This may require coordinating with the local electrical utility. • Decrease the number of Powerwalls to meet the maximum allowable impedance value. • Contact Tesla Technical Support Powerwall 2 AC Installation Manual...
  • Page 55 Megger LTW315 Loop Impedance Tester below are general guidelines only. WARNING: Impedance tests must be performed on an energized electrical system. Impedance tests should be carried out only by trained electricians using appropriate safety equipment and safety practices. Powerwall 2 AC Installation Manual...
  • Page 56 30 minutes during this stage of commissioning. NOTE: During the commissioning process, do not interrupt a step, turn off the system, or unplug the communication wiring at any time. Figure 31 shows the Multi-Powerwall installations flowchart, from design to commissioning . Powerwall 2 AC Installation Manual...
  • Page 57 Example on the right: Solar produced 9 kW, total loads are 12 kW. Powerwall units discharge 3 kW in total to keep the aggregate import at 0 kW. Since there are 3 units installed, each unit discharges 1 Figure 32: Examples of Multi-Powerwall System Operation Powerwall 2 AC Installation Manual...
  • Page 58 In Backup installations, the Backup phase is selected during the commissioning process. During an outage, the system provides backup power only to the loads on this phase. Ensure that all critical loads in the Home Load Panel are connected on the desired Backup phase. Powerwall 2 AC Installation Manual...

  • Page 59: Multi-Powerwall Installations With The Stack Kit

    Small grease applicator (wooden craft stick or cotton swab) • Water-resistant heavy-duty grease (Dow Corning Molykote BR-2 Plus High Performance Grease or equivalent, for preventing corrosion on side clips) • Installation tools (level, tape measure, pencil, flashlight) Powerwall 2 AC Installation Manual...
  • Page 60 On/Off switch to the OFF position. 2. Turn off the AC circuit breaker for the Powerwall. 3. Ensure that the second Powerwall is turned off by verifying that its On/Off switch is set to the OFF position. Powerwall 2 AC Installation Manual...
  • Page 61 Powerwall. To use this wiring method, proceed External Wiring For external wiring, wires are run through conduit or raceway that spans the wiring compartment ports on Powerwall 2 AC Installation Manual...
  • Page 62 Powerwall enclosure. 5. While holding the drill guide to make sure it conforms to the edge of the Powerwall chassis, drill a 6 mm (1/4-inch) pilot hole using the small hole in the drill guide. Powerwall 2 AC Installation Manual...
  • Page 63 O-rings, and two insulation bushings. • Assemble the conduit nipple, bridge piece and O-rings. Center the bridge and O-rings on the nipple. NOTE: Orient the O-rings so that the sides with greate Powerwall chassis. Powerwall 2 AC Installation Manual...
  • Page 64 3. (All installations) Locate a side clip, making sure the flange (with magnet) is positioned at the top and that the cams are rotated vertically in relation to the clip. Powerwall 2 AC Installation Manual...
  • Page 65 5. Press the clip until it is flush with the sides of the Powerwalls. 6. Using the provided 6 mm Allen hex wrench, do the following: • Turn the top cam 90 degrees clockwise until it clicks into place and stops rotating. Powerwall 2 AC Installation Manual...
  • Page 66 Powerwall wiring compartments. 10. Use the provided shims to ensure that the Powerwalls are level. NOTE: When joined, the units should be level within +/ 2 degrees side-to-side and within +/ 5 degrees front-to-back. Powerwall 2 AC Installation Manual...
  • Page 67 Run the provided 5-conductor communication harness between the Powerwall wiring compartments. The end with the shield/drain wire should be in the second Powerwall. NOTE: The orange conductor is unused in Powerwall 2 AC installations. • Attach the provided Phoenix connector to one...
  • Page 68 6. Place a magnetic camshaft cap on each of the four hex camshaft heads Powerwall 2 AC Installation Manual...
  • Page 69 NOTE: During commissioning, ensure that when scanning for Powerwalls, the Commissioning Wizard shows all Powerwalls in the system. 4. After installation is complete, remove the protective film from the second Powerwall. Powerwall 2 AC Installation Manual...

  • Page 70: Appendix I. Revision Log

    Updated recommended temperature range for Powerwall installation 2019-11-07 • Updated and simplified Installation Manual format • Updated guidance for installation on TT Networks 2020-01-08 • Updated maximum Tesla CT distance • Added Multi-Powerwall Installation content as an appendix Powerwall 2 AC Installation Manual...
  • Page 71 Tesla Motors Netherlands B.V. Tesla, Inc. Atlasstraat 7–9, 5047 RG 3500 Deer Creek Road Tilburg, Netherlands Palo Alto, CA 94304 UK BU2 Rev 1.7 Jan 8, 2020...

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