home with solar panels on the roof

Power Through Uncertainty With Brightbox™ in South Carolina

Back up your entire home while lowering your electricity costs with Brightbox and Tesla Powerwall, Sunrun’s comprehensive solar storage solution.

Be the One Who Controls Your Home Energy

Almost 2.5 million residents in South Carolina were affected by outages from 2008 to 2017.1 South Carolinians are also the third-biggest spenders on electricity bills in the U.S.2 But with Brightbox, you can create your own clean, safe and affordable energy at home and worry less about unexpected outages and rate spikes for as little as $0 down.

Sunrun is the leading residential solar and energy storage company in the U.S.3 We work so you can gain energy independence and security. Discover why our made-to-fit home solar and battery storage plans, backed by our industry-leading guarantee, have positioned us as one of the best solar installers in South Carolina.

Please note that Brightbox solar battery storage is only available with the installation of a new home solar energy system due to tech compatibility.


Whole Home Backup

Manufactured by industry leaders known for their quality and innovation legacies, our lithium-ion solar-powered batteries are best-in-class. With Tesla Powerwall, you can back up your entire home through a blackout, and it will recharge daily when the sun rises until the grid is restored.


Time-of-Use (TOU) Rate Protection

If you want to cut down on your home energy costs, TOU rates tie you to specific schedules — like when everyone’s cooking dinner or watching TV in the evenings.4,5,6 But with Brightbox, you can use your own stored solar energy during expensive times of peak usage and reduce the amount of electricity you buy from your electric company. This gives you more control over electricity bills so you don’t have to worry about the cost of using electricity when you need it most.


24/7 Monitoring and Maintenance

We do the work so you don’t have to. All Brightbox monthly plans come with 24/7 monitoring and maintenance. In the rare case that your solar panels or battery aren’t running as they’re supposed to, we’ll send an expert over to fix it.

Say Goodbye to Diesel and Natural Gas

Brightbox doesn’t rely on toxic, expensive and dangerous fossil fuels like traditional generators. You can forget about the dangerous fumes, unpleasant noise and hassle that come with getting gas or diesel for your generator to keep your home powered. Brightbox charges every day with the sun to give you clean, safe and affordable energy. It keeps the lights on during cloudy days, rainy afternoons, at night or when the electric grid fails.

man sitting on skateboard working with laptop on lap

A Brighter Energy Future for Everyone

Our country's grid is aging and doesn't meet our current electricity demands. This is making outages the new normal for many people across South Carolina and the whole country.7 While government agencies and utility companies work on updating the grid, switching to solar with a South Carolina solar company like Sunrun can help you create a more resilient energy system that uses clean local power.

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Frequently Asked Questions

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

Brightbox lets you store the excess energy your home solar panel system creates during the day to use it when you need it most — like in the evening, at night or when the electric grid fails due to extreme weather events or physical damage to the distribution system.

While some battery units allow you to store electricity directly from the grid, with Brightbox, the energy is harnessed entirely from the sun. Meaning it’s 100% clean, renewable and free of charge, so you don’t have to pay your electric company for the extra power to charge your battery.

Brightbox offers Tesla Powerwall batteries in New Mexico, which are industry-leading lithium-ion batteries. Compared to lead-acid batteries, solar batteries that use lithium-ion technology are more efficient and have longer life cycles, making them an excellent option to switch to solar.

Like solar-only systems, the number of Tesla Powerwalls you need is determined by your unique energy needs and habits. For some consumers, one Tesla Powerwall may be sufficient. Our Solar Advisors will help you evaluate your energy usage to customize a home solar battery storage system that sufficiently backs up your entire home.

The installation of our Brightbox with Tesla Powerwall is a relatively simple process. The battery system is about the size of a water heater and is placed on a wall or the ground, usually inside your garage or outside of your home.

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

Most residential batteries are installed and configured with baseline settings by your solar installer. Solar batteries last anywhere between 10 and 15 years, and manufacturers typically offer a ten-year warranty. But Brightbox is more than a home battery: It’s a holistic service that includes professional maintenance and monitoring for 25 years with select plans.

You can monitor your battery’s performance with the mySunrun app. Sunrun also manages the battery remotely using proprietary software to ensure it’s working as it should. It automatically updates your battery’s settings to save you as much money as possible.

Our monthly and full-amount solar plans come with 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 lifting a finger.

The best solar incentive available for a purchased home solar panel and battery storage system in South Carolina is the federal solar Investment Tax Credit (ITC), which covers 26% of its final cost. The ITC drops to 22% in 2021 and ends in 2022. We recommend contacting a tax professional to accurately determine the impact of the ITC on your federal taxes.

Another major solar incentive is the South Carolina Solar Tax Credit, which lets you claim a state tax credit of 25% of your home solar system's total purchase and installation cost. It can only take $3,500 or 50% of your tax liability per year for up to ten years.

Also, with Dominion Energy (formerly SCE&G), Duke Energy and Santee Cooper’s net energy metering (NEM) programs, you can earn bill credits for the excess solar energy you generate and send back to the grid. Net metering in South Carolina can help you increase your control over electricity bills.

Learn more about South Carolina Solar Incentives.

You can use a portable back-up generator; however, at Sunrun, we don't offer them. If you’re interested in installing a portable generator, you can contact a local electrician or renewable energy installation company. They can recommend a generator that will work best for your energy needs.

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

At this time, Brightbox solar battery storage is only available with the installation of a new home solar system. We can’t install new rooftop solar panels or a solar battery if you already have an existing solar power system, or if our solar services aren’t available in your area.