How to Prepare for a Storm in NC with Tesla Powerwall

Pair of white tesla powerwalls installed next to each other in a garage

In This Article

Let’s talk grid outages in North Carolina and how to use a Powerwall to keep you prepared for hurricanes, ice storms, and power outage events. Graham is back behind the camera to explain Tesla Powerwall Functionality During Storm Outages and what you can expect from a battery system when the power goes out.

Get the Most Out of Your Tesla Powerwall During a Power Outage

The first step to prepare for an impending power outage is to make sure you have access to the Powerwall App. Through the Powerwall App, you’ll see exactly what energy is flowing into your home and the battery’s state of charge, among other features. 

Graham, solar designer from southern energy management, giving an overview of the tesla powerwall app state of charge screen

Powerwall Rebate

Each Powerwall installed between now and October 31, 2023 is eligible for a $500 rebate from Tesla.

How to Prepare Your Powerwall for a Storm

Now let’s make sure you know how and when to use the functions within the Powerwall App during, and when preparing, for a hurricane or winter storm.

1. Enable Storm Watch

Most importantly, we want to make sure you have access to the Tesla Powerwall Storm Watch function and that it is enabled. The Storm Watch function allows Tesla to actually push power into the Powerwall before a storm event rolls through. 

Graham, solar designer from southern energy management, showing how to enable storm watch on the tesla powerwall app

2. Move Powerwall to 100% State of Charge

Next, and most importantly, we recommend you move the Powerwall to a full state of charge before the storm rolls through. That means your Powerwall will stay full until the grid goes out. Once the power is out, your Powerwall will automatically discharge into your home.

Graham, solar designer from Southern Energy Management, showing where to see how much state of charge is left on the Powerwall App

3. Monitor Your Energy Use During the Outage

During a power outage, you want to watch the Powerwall App to see how much battery backup time you have left.  

Graham, solar designer from southern energy management, showing where to see how much energy is left in a powerwall battery during a grid outage on the powerwall app

What Happens to Your Powerwall During an Unexpected Outage?

When an outage suddenly happens, the Powerwall will instantly and automatically kick on within about 2 seconds to back up your home. You may not even notice anything has happened, or you might notice a slight power flicker – that’s very common. The Powerwall will then stay on while there’s instability in the grid to protect your home and will ensure appliances and electronics aren’t damaged by voltage spikes or other things of that nature.

And it’s as simple as that. From there, continue monitoring the backup time you have left (like we talked about above), and keep safe!


If you have any questions about the Tesla Powerwall solution and how it could integrate into your home, reach out today to get started! 

Schedule a call, or request a free solar assessment to get started →

Meet the Author

Lindsay Brecheisen

Always enjoying the journey 🙂 Lindsay is the conductor of content at Southern Energy Management. When she isn’t synthesizing information into a newsletter or blog — Lindsay enjoys long walks on the beach with her cat, listening to soul on vinyl, and surfing the earth or sea (depending on the season).

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