Powerwall Overview

What is Powerwall?

Powerwall is a rechargeable home battery system that stores energy from solar or from the grid and makes it available on demand. It can power your home during the night or back up your home in the event of a power outage. With its built-in battery inverter, Powerwall is compact and easy to integrate into your home. As with all Tesla products, new features will be added to Powerwall with over-the-air updates.

What can I use Powerwall for?

Powerwall can be used for a variety of applications, including:

Self-Powering your Home
With Powerwall you can use more of your solar by storing the excess energy and using it at night, which roughly doubles the amount of solar energy that directly powers your home.

Backup Power
Powerwall provides seamless backup power in the event of a utility power outage. In a longer outage, Powerwall can recharge from your solar power system. If necessary, you can even run your home from solar and Powerwall indefinitely.

Home Energy Monitoring
You can monitor your solar, Powerwall and home energy use in real time with the Tesla mobile app.

Time-based Control
If your electricity prices vary during the day, you are probably using a time of use (TOU) rate plan. On this plan, Powerwall can help you maximize the value of your solar and energy usage by smartly charging and discharging based on the time and price of energy.

How can I control Powerwall?

The Tesla mobile app allows you to manage all of your Tesla products - Model S, Model X, Model 3 and Powerwall - anytime, anywhere. With the Tesla mobile app, you can choose between different modes, such as Backup Only or Self-Powered. In Self-Powered mode, you can reserve a percentage of your Powerwall for an outage. As with all Tesla products, we will continue to add new features and modes over time.

Can Powerwall work without Internet?

Powerwall needs an Internet connection (over wired Ethernet or your home Wi-Fi) or a cellular connection to receive software updates and to communicate with the Tesla mobile app for energy monitoring. A reliable connection is required to provide new product features over time. If its connection is temporarily lost, Powerwall can continue to operate with its most recent settings, but it should not be installed in a location without Internet or cellular service.


How do I buy and install Powerwall?

  • Place a deposit
  • Complete a home assessment by either a web based self survey or with a Tesla site surveyor
  • Review and approve your custom design with your product specialist
  • Schedule installation of Powerwall at your convenience
  • Installation and setup is performed by Tesla or by a Tesla Certified Installer