Tesla Powerwall improves over time with regular over-the-air software updates. New functionality and improvements are added with updates to Powerwall firmware and to the Tesla mobile app.

January 2021

November 2020

Various bug fixes and improvements focusing on system performance, networking and alerts

September 2020

Version 1.49

Updated support for utility grid connections in Hawaii, Japan, Bahamas and Turks and Caicos

Tesla App Version 3.10.6

Improved push notifications for some system events, including behavior during power outage and Storm Watch

Released Solar Offset Performance Card for all Powerwall owners, previously available to solar owners

July 2020

Version 1.48

Updated support for utility grid connections in Japan and South Africa

Improved Powerwall performance for sites in South Australia Virtual Power Plant

May 2020

Version 1.47

Added support for utility grid connections in Japan

Tesla App Version 3.10.5

Tesla app home screen updated to display Solar Roof image for Solar Roof owners

April 2020

Version 1.46

Enhanced support for Tesla Vehicle Charging during a Power Outage in North America

Added support for utility grid connections in Barbados and New Caledonia

Added additional support for Powerwall preconditioning for systems in a backup event

Some customization settings in the mobile app now take effect more quickly

February 2020

Version 1.45

Added support for utility grid connections in Cape Town

January 2020

Version 1.44

Updated support for utility grid connections in Italy

December 2019

Version 1.43

Added support for utility grid connections in Zimbabwe Provinces

October 2019

Version 1.41

Added support for utility grid connections in Switzerland

Enhanced performance for multiple Powerwall systems during grid outage

Additional support for 3-phase Western Australia grid compliance

September 2019

Version 1.40

Minor fixes and improvements

August 2019

Version 1.39

Added support for utility grid connections in the Dominican Republic

Tesla App Version 3.9.0

Added the ability to select a specific day, week or month by scrolling left and right in the Energy Usage screen. Additionally, all historical data is now accessible

Added the ability to download data. To use, tap on ‘Download Data’ at the bottom of the Energy Usage screen and choose your method of sharing

Added the ability to copy the Serial Number at the bottom of the Home screen to make communicating with Tesla Support more seamless

Version 1.38

Added support for utility grid connections in the Cayman Islands, St Vincent, Antigua and Barbuda

July 2019

Tesla App Version 3.8.6

Added pull-down to refresh products on the Settings screen for existing Tesla customers with any new product

Added 'Learn More' links on Customize screen to explain Powerwall operating modes   

Added number of Powerwalls directly on the Powerwall image on Home screen

Added tap to reveal Gateway serial on bottom of Home screen

May 2019

Version 1.37

Improved Time-Based Control algorithm for customers with Net Energy Metering (NEM)

April 2019

Version 1.36

Improved on-grid stability for backup systems

Additional support for UK grid compliance  

March 2019

Version 1.35

Increased sensitivity of Storm Watch

February 2019

Version 1.34

Minor fixes and improvements

Version 1.33

Minor fixes and improvements

Tesla App Version 3.8.1

Added alert when Powerwall detects an issue needing attention

January 2019

Version 1.32

Minor fixes and improvements

Version 1.31

Minor fixes and improvements

December 2018

Version 1.30

Minor fixes and improvements

Version 1.29

Improved performance at low temperatures

Storm Watch added to Australia and New Zealand

November 2018

Version 1.28

Additional support for Virtual Power Plants

Reduced energy consumption when idle

Version 1.27

Improved charging capability for certain rare grid conditions

October 2018

Version 1.26

Minor fixes and improvements

Version 1.25 for selected regions

Faster recharging in Backup Only mode. When solar is available, Powerwall can now charge up to its maximum continuous power rating 

Tesla App Version 3.6.0 for selected regions

Storm watch now displays “standby” indicating it is ready to act on a storm warning or “active” when it is currently in Storm Watch mode

Large energy values are now displayed as kWh instead of MWh for better granularity

September 2018

Version 1.24

Faster recharging in Backup Only mode for selected regions

Version 1.23

Powerwall will automatically perform preventative maintenance on its thermal control system. During this time, you may hear louder than usual noise from Powerwall for approximately 30 minutes

August 2018

Version 1.22

Storm Watch mode for selected regions. Powerwall automatically detects incoming storms and stores energy (Requires Tesla App Version 3.4.3 or higher). Learn more in Special Modes of Operation

Powerwall customers participating in Grid Services programs now know when their systems are benefiting the grid and can track Grid Services energy and power usage (Requires Tesla App Version 3.4.3) 

July 2018

Version 1.21

Added Monitoring from your Home Network to allow:

• Local monitoring of power flow and charge level
• Viewing system information
• Updating network settings
   

Improved power supply management with multi-Powerwall systems

Further reduction in network data usage

June 2018

Version 1.20

Updated installer login to Gateway

Further reduction in network data storage

Version 1.19

Added ability to update network connection when home Wi-Fi changes

Version 1.18

Minor fixes and improvements

Tesla App Version 3.4.1

Customize the site name (Solar or Powerwall)

Tap version number to get Release Notes

May 2018

Version 1.17

Added dynamic network management to use best internet connection type (Ethernet, Wi-Fi or Cellular)

Improved performance of Time-Based Control mode

Tesla App Version 3.3.6

Added performance metrics for Time-Based Control mode

March 2018

Version 1.16

Added support for additional utility grid connections in New York

Version 1.15

Minor fixes and improvements

February 2018

Version 1.14

Added Time-Based Control Mode for selected regions. If energy costs vary through the day, Powerwall can shift energy to maximize savings. (Requires Tesla App Version 3.3.4 or higher)

Version 1.13

Minor fixes and improvements

January 2018

Version 1.12

Reduced network data usage

Improved tolerance for grid power variations

Version 1.11

Added Preconditioning for improved performance at low temperatures. Learn more in Special Modes of Operation

Improved over-the-air update performance

November 2017

Version 1.10

Improved support for utility grid connections in Germany

October 2017

Version 1.9

Generator support with Automatic Transfer Switches (ATS)

Improved performance when charging from solar during outages

Added capability to reset Powerwall by toggling the Enable switch on the side of the unit (Backup systems only)

Added support for multiple Powerwalls at 3-phase sites

Improved support of off-grid and offline scenarios, adding support to Puerto Rico

Version 1.8

Not released; all enhancements moved to Version 1.9

September 2017

Version 1.7

Added support for utility grid connections in California and Hawaii

Added capability to register Powerwall after installation by visiting Powerwall Self Registration

August 2017

Version 1.6

Minor fixes and improvements

July 2017

Version 1.5

Added support for utility grid connections in Germany and Italy

Version 1.4

Not released; all enhancements moved to 1.5

June 2017

Version 1.3

Improved efficiency at low power levels