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Get Clean, Safe, and Affordable Back-up Power in Texas

Back up your entire home or just the essentials with Sunrun’s affordable solar battery services and take control over your energy.

Sunrun Offers More Peace of Mind for You and Your Family

There’s no doubt that the danger of blackouts is becoming a part of daily life in Texas.1 As increasingly extreme weather and an aging grid create the perfect storm for power outages, Sunrun Brightbox™ gives Texans the choice to put the power back in their hands.

Tesla Powerwall

Power through Unexpected Outages with Brightbox

Solar-powered home battery in Texas is crucial to energy independence and resilience. With Sunrun’s Brightbox, you can take control with complete home backup with Tesla Powerwall or just the rooms you need with LG Chem.*

For as little as $0 down, take advantage of Sunrun’s industry-leading rooftop solar and home battery, superior service, and flexible financing options so you can enjoy maximum peace of mind. So when the next storm strikes, you have clean energy powering you forward. Please note that Brightbox with Tesla or LG Chem solar battery storage is only available with the installation of a new home solar system.

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Create and Store Your Own Renewable Energy

Now, you have the option to power your entire home, or just the essentials, through a blackout. In the event of an outage, Tesla Powerwall and LG Chem solar batteries provide clean, safe, and reliable power and recharge daily when the sun rises.


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Control and Energy Independence

We make the power of solar accessible. Our flexible financing options offer low, predictable rates and a customized agreement to meet your family’s energy needs.

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24/7 Monitoring and Maintenance

We do the work so you don’t have to. Our financing options come with 24/7 monitoring. If your solar panels or solar battery aren’t working at their full capacity, we’ll send an expert over to fix it.

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Now You Can Prepare for the Unpredictable

Thousands of Texas residents and businesses have already spent hours—and for some, days—in the dark after storms pummeled the region, while unpredictable grid failures have left Texans to face the unforgiving summer heat.2, 3 We can’t forget the destruction hurricanes Ike and Harvey caused, which left at least 4 million Texans without power.4,5 

As extreme weather events continue to affect Texas, Sunrun is hard at work creating a brighter today that’s powered by clean energy. Texas is already a significant leader in solar: It currently ranks among the top ten states in solar capacity and the top five in solar jobs.6 With home solar capacity expected to triple by the end of the decade, thanks to the state’s competitive marketplace coupled with an abundance of land and sunshine,7 the Lone Star State is well on its way towards becoming a solar powerhouse.

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Frequently Asked Questions

Brightbox is a holistic solar home battery service that offers you clean, safer, reliable back-up power to have better control over your home energy use and cost.

Brightbox allows you to store the excess energy your solar energy system produces during the day and use it when you need it most—such as in the evening, at night or when the electric grid fails due to an extreme weather event, or physical damage to the equipment.

Just like solar panels, the number of Tesla Powerwalls or LG Chem batteries you need will be determined by your unique energy needs and habits—though for some consumers, one battery may be sufficient. Your Solar Advisor will help you evaluate your energy usage to customize a solar energy battery system that sufficiently backs up your entire home. Request a free quote today.

The best solar battery incentive available in Texas is the federal solar investment tax credit, which covers 26% of the final purchase price of the home solar system. Starting in 2023, the solar tax credit will step down to 22%, and after 2024, the tax credit for home solar ends. We recommend contacting a tax professional to most accurately determine the impact of the federal solar tax credit and local tax credits on your taxes.

At this time, Brightbox is only available to new Sunrun customers.  We are unable to install Brightbox if you already have an existing solar installation or if it isn’t offered in your area.

But if you’re still interested in Brightbox, please let us know. We’ll contact you when we expand our services. Know that we’re constantly improving our technology to provide a better customer experience.

Aside from very rare exceptions, Sunrun’s Brightbox service includes rooftop solar panels. Brightbox stores 100% clean, renewable, home-grown solar power directly from the rooftop panels every time the sun is out so you can use it when you need it most.

Brightbox works in tandem with the grid, and is not designed as an off-grid solution.

You can use a portable generator. However, Sunrun doesn’t offer backup generators. If you’re interested in installing a portable generator, contact a local electrician or renewable energy installation company. These experts can recommend a system appropriate for your home.

Please note that Brightbox cannot be installed on homes that already have a standby generator.

A solar battery installation is a relatively simple process. Tesla Powerwall and LG Chem solar batteries are about the size of a water heater and easily mounted on a wall by our professional installers—usually inside your garage or outside of your home.

Having a home solar battery service in Texas will help you power through power outages, lock in low rates with flexible financing options, and get a clean alternative to loud and potentially dangerous diesel generators.

Your system is also covered by our Sunrun Guarantee, so we handle maintenance and repairs at no additional charge.

One Tesla Powerwall stores 13.5 kilowatt-hours (kWh) of usable electricity, which can be used to back up the home for a day. An LG Chem solar battery holds 9.8 kWh, which can be used to back up essential parts of the home from 8 to 12 hours. Rooftop solar panels will replenish the battery’s energy storage the following day. Back-up ability will depend on your unique home's power usage.

You can monitor your solar battery performance on your mySunrun app. Sunrun also manages the battery remotely using proprietary software to make sure it’s running as it should and automatically updates your battery’s settings to save you as much money as possible.

Our monthly and full-amount solar leasing options come with proactive monitoring and maintenance—on us. So if we notice that your rooftop panels or solar battery aren’t working at their full capacity, we’ll send an expert over to fix it without you lifting a finger.

The electrical circuits in your home that power your lights and appliances are all connected to breakers, safely regulating the amount of power that feeds each circuit. Multiple appliances can be powered by one breaker. For instance, one breaker could power your refrigerator and nearby outlets or lighting in your kitchen. While you can’t necessarily target individual appliances, with Brightbox you can choose which breakers you’d like to back up. What you can back up depends on the current wiring of your home.

During a power outage, appliances like your refrigerator, electronics chargers for cell phones, laptops, and your TV can be backed up by Brightbox for approximately 8 to 12 hours. When the sun rises again, your solar panels will recharge your Brightbox. The most important rooms and appliances in your home will be powered by your home battery until the grid is up and running again. Learn more about how home solar batteries work.

Through Sunrun’s Brightbox service, your Tesla Powerwall or LG Chem solar battery will automatically disconnect from the power grid in the event of a blackout and restore power in your home in a matter of seconds. Your rooftop solar panels will continue to recharge your solar battery until the grid is up and running again.

Our certified electricians will take care of installing and configuring your Tesla Powerwall or LG Chem battery for you. Batteries last anywhere between 10 and 15 years, and manufacturers typically offer a ten-year warranty.

Still, Brightbox is more than just a home battery: It’s a holistic service that includes professional maintenance and monitoring during the life of your agreement. Consumers who own their Tesla Powerwall or LG Chem solar battery get Sunrun service for ten years, while consumers with a monthly service agreement or full-amount service agreement get free maintenance and replacement for the lifetime of their contract.