A Powerwall owner in Hawaii put it simply: "Electricity goes out, I know my family's safe, and that means a lot to me." Tesla Energy shared the testimonial this week alongside a short video explaining how Storm Watch mode works — automatically charging the Powerwall to full before severe weather arrives. If you own a Powerwall and have never looked at this setting, here's everything you need to know.
What exactly does Storm Watch mode do?
When Storm Watch activates, your Powerwall overrides its normal charge schedule and reserve settings and charges to 100% capacity. The goal is straightforward: ensure you have maximum backup power available before the grid goes down. Once the weather event passes, the system automatically reverts to whatever operating mode you had previously configured — you don't have to do anything manually.
How does the system know a storm is coming?
Storm Watch pulls data from multiple sources, including the National Weather Service, third-party weather APIs, and local utility alerts. It triggers on officially issued severe weather watches and warnings — hurricanes, tropical storms, tornadoes, winter storms, blizzards, flash floods, high wind events, ice storms, and red flag fire conditions all qualify. The system is monitoring continuously in the background, so you don't need to check a forecast and manually intervene.
Will I know when it kicks in?
Yes. You'll receive a push notification through the Tesla app both when Storm Watch activates and when it deactivates. If you want to opt out of a specific event — say, the forecast looks less severe than expected — you can do that through the app as well. You can also manually trigger Storm Watch for a scheduled duration if you want to pre-charge ahead of a situation the automated system hasn't flagged yet.
Does it affect my solar charging too?
It can. During an active Storm Watch event, excess solar energy may be prioritized to charge the Powerwall before being directed elsewhere — including to a Tesla vehicle if Smart Charging is also enabled. In practice, this means your car might charge more slowly during a Storm Watch window, but your home backup capacity takes priority.
Is Storm Watch available where I live?
According to Tesla, Storm Watch is currently available in the United States, United Kingdom, Italy, Thailand, Japan, Taiwan, Australia, and New Zealand. If you're outside those regions, the feature won't appear in your app. For owners in Hawaii specifically, Tesla has provided storm preparedness guidance for Powerwall users for several years — the state's exposure to hurricanes and tropical storms makes it a natural fit for the feature.
How do I make sure Storm Watch is enabled on my system?
Open the Tesla app, navigate to your Powerwall, and look for the Storm Watch toggle in the settings. The feature should be on by default for supported regions, but it's worth confirming — especially heading into hurricane season or winter storm season. If you've never checked, now is the right time. A fully charged Powerwall going into a major outage is the difference between riding out the storm comfortably and scrambling for candles.
The Hawaii owner's testimonial is a reminder that Storm Watch isn't a marketing feature — it's the kind of automation that matters when conditions deteriorate fast and the grid can't keep up. If your Powerwall is set and Storm Watch is enabled, the system handles the rest.
Related Gear
Gear up your Tesla with tested, custom-fit BASENOR accessories — shop Tesla accessories →
Sources & reporting notes
The links below identify the material source records used for this report.
- @teslaenergy on X (2026-10-19T21:29:14.000Z) — Direct source
Source links are preserved as published or accessed. See our editorial standards and corrections policy.
The BASENOR Editorial Desk covers Tesla, SpaceX, and related technology, curating reporting from primary sources — official accounts, regulatory filings, and software release data. Every article passes source-record and fact-checking review before publication. About the newsroom.
This report was curated by the BASENOR Editorial Desk from the sources listed above. Read our editorial standards or email editorial@basenor.com to report an error.
