Appendix I: Revision History


Revision	Date	Description
1.9	September 17, 2025	Updated Solar Technical Specifications with footnote that PV array voltage should not exceed 550 V DC
1.8	August 19, 2025	Updated Powerwall 3 Expansion Specifications to include model numbers when Powerwall 3 is installed with Expansion unit(s) Updated STEP 6: Make Powerwall 3 AC Circuit Connections with instruction to install and mark model number label Updated Tesla Remote Energy Meter Specifications and Install the Tesla Remote Energy Meter and CTs to reflect that a Powerwall 3 site can have a maximum of three Tesla Remote Energy Meters: one connected via RS-485 and up to two connected via Wi-Fi.
1.7	July 16, 2025	Removed Connect CAN / 12V Circuits via CAT5 or CAT6 Ethernet Wiring (no longer supported at this time)
1.6	June 17, 2025	Updated Connect Tesla Remote Energy Meter to Powerwall 3 with options for the meter's mounting location when the antenna extension cable is required Added Connect CAN / 12V Circuits via CAT5 or CAT6 Ethernet Wiring Added Solar or Load Shedding Feature Added Electrical Equipment Sizing and Overcurrent Protection for systems with more than (2) Powerwall 3 units
1.5	May 7, 2025	Corrected Maximum Elevation to 2000 m in Powerwall 3 Specifications Added Powerwall 3 Expansion Specifications Added Appendix H: Regional Grid Code Settings Added Expansion units to Appendix E: Installing Multiple Powerwall 3 Units and/or Expansion Units
1.4	April 2, 2025	Updated Energy Metering and added In the Tesla Remote Energy Meter Box Updated images of integrated DC isolator and updated Integrated DC Isolator Locking Mechanism to reflect new black isolator switch
1.3	March 7, 2025	Updated Powerwall 3 Specifications to reflect updated Powerwall 3 I_MP of 30 A and I_SC of 38 A Updated Powerwall 3 Specifications, Required Supplies, and Install Powerwall and Generation Breakers in the Backup Gateway to reflect that maximum continuous current is 48 A and a 63 A breaker is required for Powerwall 3 installations, regardless of configured power / current output Updated Energy Metering with additional detail about monitoring Powerwall 3 systems Updated STEP 5: Connect Powerwall 3 to Backup Gateway with instructions to install Tesla Grid Utility Ancillary Controller (GUAC) interface device for installations requiring DRM0 functionality Updated Prepare Ethernet Wiring with RJ45 Connectors to reflect T-568A wire color standard
1.2	January 6, 2025	Updated Design Considerations and STEP 7: Make Solar PV Connections to reflect that third party MLPE solutions, such as optimizers, are not compatible with Powerwall 3
1.1	October 15, 2024	Added distance from center of each conduit hole to the floor in Choose Powerwall Cable Entry Updated PV wire requirements in Required Supplies Updated STEP 6: Make Powerwall 3 AC Circuit Connections and STEP 7: Make Solar PV Connections to clarify that it is best practice to connect the ground circuit before making any AC or PV connections
1.0	August 14, 2024	Initial publication