Brightbox AZ

Premium Home Solar Battery Storage in Arizona

Arizonans enjoy about 299 days of sunshine every year,1 which translates to a whole lot of sun power. As one of the top 10 solar states for solar capacity installations,2 it’s no surprise that Arizona can count on the sun as a renewable energy source.

While the sun shines bright in Arizona, there are times when Arizonans need additional power support during its worst heat waves and when the sun goes down.

With Brightbox™, Sunrun’s home solar battery service, you can count on reliable backup power, freedom from unpredictable bills, and peace of mind. And with Brightbox’s energy storage capabilities, you’ll never be left without power again. Now, the next time your fridge powers down in the middle of June, your food stays fresh with Brightbox powering you forward. *Note: Brightbox solar battery service is only available for new Sunrun customers.

Battery Storage Technology

Energy storage technologies are crucial to a clean energy future. Sunrun’s Brightbox includes a powerful lithium-ion battery that optimizes affordability, efficiency, and durability. When fully charged, your battery can have approximately 8-12 hours of backup power on reserve, storing the solar power produced by your panels so you can use it when you need it most.

4 Ways Brightbox Powers You Forward

  1. Power Through Outages
    You can’t predict when the next blackout will strike. Rest easy knowing that Sunrun’s Brightbox won’t leave you in the dark. Your home battery will have a constant reserve of power. You’ll also be able to choose which rooms and appliances you want to back up. That means you can keep your food cold, your phones charged, and the lights on during a power outage. When the sun’s back out, Sunrun’s solar panels will recharge your home battery so you can continue to get backup power until the grid is up and running again.
  2. Control Over Your Energy
    Brightbox puts your energy needs first. A seamless online user dashboard gives you control over your power usage. During a blackout, you decide what rooms and appliances stay on. The more you know, the more power goes back into your hands.
  3. Superior Service
    We do the work so you don’t have to. Our flexible financing options come with 24/7 proactive monitoring and maintenance, on us. If we notice that your home battery or solar panels aren’t working at their full capacity, we’ll send an expert over to fix it. We’re always standing by to make sure your home battery is in top condition, so you can keep powering on.
  4. Battery Storage and Time of Use
    TOU rates are electricity rates in which utilities charge for both how much and when you use energy. That means energy prices dramatically increase during the hours of the day when you need electricity the most. Thankfully, Brightbox has you covered with smart technology that provides power during peak demand times so that you don’t need to rely on grid electricity when rates are highest. By buffering you from unpredictable and confusing utility bills, you don’t have to think twice about your power.

How Does Sunrun Brightbox Protect Me From Outages?


Brightbox powers the appliances you care most about for approximately 8-12 hours during an outage.

Keep your food cold, your lights on, and enjoy greater peace-of-mind during a power outage with Sunrun Brightbox.

Power a fan
Refrigerate food
Use WiFi
Charge your
cell phone
Watch TV
Power 5 light
Open/close the
garage door
Use a laptop

Hours reflect a full battery powering a single device, minimum 20% capacity held in reserve.


The Future of Home Energy Storage

Stored solar energy is the future, and Sunrun is proud to be a part of it. With Brightbox advanced technology you get to keep the energy you produce, then use it when you need it the most.

We know that Arizonans are serious about sustainability and solar energy. We’re here to help you take the next step with an energy storage solution you can count on. See if you qualify today.

Make your home a Brilliant Home with Sunrun Brightbox™

Find out if solar is right for you!

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Frequently Asked Questions

One of Arizona’s best solar incentives is the state’s Renewable Energy Production Tax Credit, covering 25% or up to $1,000 of your system’s cost. Another major incentive is the federal solar Investment Tax Credit, covering a generous 30% of the total system cost.

Other Arizona incentives include sales and property tax exemptions and Arizona Public Service’s Solar Export Plan (or net feed-in tariff). Learn more about Arizona solar incentives.

For customers with our BrightSave Monthly and Prepaid products, Sunrun applies for these rebates and tax credits, and automatically includes the savings from these rebates in the price we offer our customers.

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

However, if you’re still interested in Brightbox please let us know—you’ll be the first to know when we’ve come up with a solution. We’re hard at work on optimizing our technology to provide an even more seamless customer experience.

For most households, one solar battery is sufficient to power your most important appliances. In the event of a blackout, your Brightbox battery provides approximately 8-12 hours of backup power.

When the sun rises, your solar panels charge your battery so you can continue to back up your home until utility power is restored.

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

Yes. Brightbox is part of Sunrun’s holistic solar as a service offering. When you choose to go solar with Sunrun, you can add a Brightbox home battery if it is offered in your market.

In the event of 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.

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

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

Having a home solar battery service in Arizona will help save money by offsetting high Time-of-Use (TOU) rates while offering peace of mind when the power goes out. Plus, our long-term savings and financing flexibility let you go solar on your terms.

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

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 plus nearby outlets or lighting in your kitchen. While you can’t necessarily target individual appliances, with Sunrun 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.

The amount of available backup power depends on what you choose to back up, what time of day and season the power outage happens, and how much energy your household uses. If the battery is fully charged, it can provide approximately 8 to 12 hours of backup. If your battery has been discharging throughout the day, it automatically holds a 20% reserve for a backup emergency, or about 3 to 4 hours for a blackout when the sun is down. When the sun comes back up, your Brightbox will start to charge again!

Brightbox installation is a relatively simple process. The battery itself is about the size of a water heater and easily mounted on a wall—usually inside your garage or outside of your home. The clearance required for a Brightbox battery and its accompanying components is 6.5’ H x 10’ W.

Our expert electricians will take care of installing and configuring your battery for you. Batteries last anywhere between 10 and 15 years, and manufacturers typically offer a 10-year warranty.

Still, Brightbox is more than home batteries; it’s a holistic service that includes professional maintenance and monitoring during the life of your agreement. Customers who own their battery get Sunrun service for 10 years, while customers with a BrightSave Monthly or Prepaid contract get free battery maintenance replacement for the lifetime of their contract - generally 20 or 25 years.

You can monitor your Brightbox battery’s performance on your mySunrun app. Sunrun also manages the battery remotely using proprietary software so we keep tabs on your system 24/7 to make sure it’s running as it should, and automatically updates your battery’s settings to save you as much money as possible.

Brightbox is a home solar battery service that offers clean, reliable and affordable power. Brightbox can be used for backup when the grid is down, or give you better control over your home energy use and cost.

Our BrightSave Monthly and Prepaid solar plans come with 24/7 proactive monitoring and maintenance, on us. So if we notice that your Brightbox or solar panels aren’t working at their full capacity, we’ll send an expert over to fix it without you having to lift a finger.

Brightbox stores the electricity your rooftop solar produces during the day for when you need it most, such as in the evening, at night, or when the electric grid fails.

In the event of a power outage, your Brightbox automatically discharges power to your critical home appliances.

Learn more about how home solar batteries work.

Planned power outages


APS Outage Map


SRP Outage Map


TEP Outage Map

Brightbox Solar Battery Storage Articles