88%
Odds it works through 2029Last checked: October 13, 2026.
Powerwall is Tesla’s home battery, which stores solar power and keeps the lights on during outages. It is managed through the Tesla app.
CompanyTesla
Needs the cloud?Partly. Backup power works on its own, but settings and monitoring go through the Tesla app and cloud
Subscription for basics?No
How long devices get supportWe have not found a Powerwall device that was switched off. Tesla does not publish end-of-support dates.
Why 88%
- Starting point90%A large, established company.
- Track record0No history of shutting down Powerwall features.
- Works without the cloud−2Settings and monitoring depend on Tesla’s cloud.
- Our estimate88%
The good news: Powerwall keeps backing up your home during an outage even without the internet, and Tesla is a big company with a large energy business.
The bad news: Changing settings and seeing your energy use depend on the Tesla app and cloud, and there is little local control.
If you own Tesla Powerwall
- Make sure your installer has set up backup power, which works without the app.
- Check your settings in the Tesla app after major updates.