4 Houses that don't have Solar Battery Storage vs 1 House with Solar Battery Storage

Take Control of Your Energy with Brightbox™ in Arizona

Back up your home and lower electricity costs with Sunrun’s solar and battery service. Consult with your sales representative for battery availability and backup capabilities in your area. Available while supplies last.
Tesla Powerwall

Sunrun Offers You Clean Back-up Power and Rate Protection

Now, more than ever, is the time to take control. In these times of uncertainty, Arizonans need additional power support during increasingly dangerous heat waves, peak summer demand, and when the sun goes down.1

With Brightbox and a Tesla Powerwall, you can get complete home backup, or you can back up just the rooms you need with an LG Chem solar battery.* Both battery storage plans start at $0 down and offer you Time-of-Use (TOU) rate protection in Arizona. Take advantage of Sunrun’s industry-leading rooftop solar and home battery technology, superior service, and custom solar plans, today. Please note that Brightbox with Tesla or LG Chem solar battery storage is only available with the installation of a new home solar system.


Power through Outages

Sunrun’s Brightbox won’t leave you in the dark. Your home battery will have a constant reserve of power. When the sun’s back out, Sunrun’s solar panels will recharge your home battery so you can continue to get back-up power for your entire home with Tesla—or just the essentials with LG Chem—until the grid is up and running again.


24/7 Monitoring and Maintenance

We do the work so you don’t have to. All of our monthly solar plans include 24/7 monitoring and maintenance. If your solar panels or battery aren’t working at their full capacity, we’ll send an expert over to fix it. Learn more about our Sunrun Guarantee.


Protection from TOU Rates

During specific times when people use the most energy, like when everyone is cooking dinner or watching TV in the evenings, some electric companies charge more for electricity. Brightbox allows you to use your own solar power during these expensive times of peak usage and reduce the amount of electricity you buy from your utility company. This means that you can reduce your bills and worry less about your energy costs during times of high demand.

Power through life

The Future of Home Energy Storage Is Here

Stored solar energy is the future, and Sunrun is proud to be a part of it. Brightbox’s advanced technology lets you keep the solar energy you produce, and then use it when you need it the most. As one of the top ten solar states for solar capacity installations,2 it’s no surprise that Arizona can count on the sun as a renewable energy source for generations to come.

Power through Blackouts with a Solar Battery

solar system image
  • Keep the power on during outages
  • Best-in-class solar panels and batteries
  • 24/7 monitoring and free maintenance
  • Learn more about solar tax credits.

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Frequently Asked Questions

Brightbox is a holistic solar battery service that offers you clean, 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 or when the electric grid fails due to an extreme weather event or physical damage to the equipment.

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.

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.

An LG Chem solar battery backs up part of your home, while a Tesla Powerwall backs up your entire home. There are also differences in software and app functionality.

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 your home for 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.

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.

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.

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

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.

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. It will also automatically update 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. 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 Residential Arizona Solar Tax Credit is one of the best solar incentives available in the Grand Canyon State. Arizona home solar panel and battery owners are eligible for a credit worth 25% of their system cost or up to $1,000, whichever is less. If the credit exceeds the taxes you owe, you can continue to carry it over for up to five years.

Another major incentive is the Inflation Reduction Act (IRA), which can cover up to 30% of the final purchase price of the home solar system in tax credits.

We recommend contacting a tax professional to most accurately determine the impact of the federal and local tax credits on your taxes.

Learn more about Arizona Solar Incentives.

You can use a portable generator, however, Sunrun doesn’t offer back-up generators. If you’re interested in installing a back-up generator, you can contact a local electrician or solar energy installation company. These experts can recommend a system that will be appropriate for your home. Please note that a Tesla Powerwall or LG Chem solar battery cannot be installed in homes that already have a standby generator.

Our rechargeable solar battery systems are designed to keep you on-grid during normal service times while still providing reliable backup when the sun isn’t shining or during the event of an outage. This is the most reliable and economical way to use your Brightbox system, and the one most strongly recommended by Sunrun’s service experts.

At this time, Brightbox with a Tesla Powerwall or LG Chem solar battery is only available to new Sunrun consumers. We can’t install rooftop solar panels or a home battery if you already have an existing solar installation or if it isn’t offered in your area.

Family during blackout

Get Best-In-Class Home Battery Technology

We’re here to help you take the next step with a battery solution you can count on. Whenever you’re ready, you can use our Product Selector or request a free quote. Our Solar Advisors are here to help you every step of the way.

Planned power outages


APS Outage Map


SRP Outage Map


TEP Outage Map

Brightbox Solar Battery Storage Articles


1. Vox — Why extreme heat is so alarming for the fight against Covid-19

2. Solar Energy Industries Association (SEIA) — Top 10 States for Solar in the U.S.

*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.