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Solar Energy

Outage Protection

Energy Indipendence

Protect Against Outages

Powerwall is an integrated battery system that stores your solar energy for backup protection when the grid goes down. Your system detects outages, powers your home and electric vehicle with backup energy and automatically recharges with sunlight to keep your appliances running for days.

When your solar system generates more energy than you need, you can store the extra energy with Powerwall and save it for later. Powerwall can also recharge from the grid when utility prices are low.

Your stored energy is available whenever you need it—during the day, at night or when an outage occurs. A Powerwall system can power your entire home, including your heater or A/C, as well as other large appliances.

Using your usage history, weather forecasts and utility price estimates, Powerwall optimizes your stored energy to power your home more efficiently, day and night. With some utilities, you can earn money by selling your energy to the grid.

Monitor and Optimize Your Energy

The Tesla app allows you to monitor your solar energy in real time. Set your preferences to optimize for energy independence, outage protection or savings. Support the grid when demand is high and during critical times, like when changes are likely, by sharing your excess energy. Control your system from anywhere with remote access and instant alerts.

Powerwall Specs


Energy Capacity
13.5 kWh

On-Grid Power
11.5 kW continous

Backup Power
11.5 kW continous
185 LRA motor start
Seamless backup transition

efficiency 97.5%
6 solar inputs with Maximum Power Point Trackers


Size and Weight
L x W x D
43.25″ x 24″ x 7.6″
287 lbs

System expansion
available anytime
40.5 kWh max
addition per unit

Integrated inverter and system
-4°F to 122°F
Flood and dust resistance

Meets north American safety
and EMI standards


10 years

Energy That's There When you Need It

Powerwall backup protection extends beyond the home. You can optimize your stored energy to charge your electric vehicle with clean energy during the day, at night, or during an outage. Adjust your system settings to charge exclusively with excess solar energy, or  share your electric vehicle’s battery power with your home using Powershare to extend your home’s backup support during an outage.


Order now or schedule a call with a Tesla Advisor to learn more.