Get back-up power for the essential parts of your home
What does it take to make a Brilliant Home™? For starters, we only partner with the world’s most experienced
innovators like LG Chem to offer solar battery service that’s reliable, customizable, and
One of the world leaders in energy storage systems, LG Chem provides high-performing battery solutions for
leading brands like Apple and Volvo. By expanding to solar energy storage, LG Chem uses its impressive
pedigree to bring you a best-in-class battery at price point you can get behind.
Sunrun partners with LG Chem to build out the Brightbox battery, bringing you premium home battery storage. Here’s a Quick Rundown of the Battery:
Best-in-class Lithium-ion RESU Battery
Stores 9.3 kWh of usable energy & charges/discharges 5kW at maximum power
Winner of the EES Award at Intersolar Europe
By partnering with LG Chem, Sunrun’s battery backup service can’t be beat. It’s fully UL certified, and has
gone through extensive testing to make sure it’s safe in your home. Unlike a generator, there are no
dangerous fumes, toxic fuels, or bulky cords that put you and your loved ones at risk.
How does our top-notch home solar battery work? The solar battery stores excess power your solar panels
produce during the day.
The battery charges depending on the size of the solar installation you have, and the amount of available
solar power hitting the panels. On average, our battery hits full capacity by early to mid-afternoon. At
full capacity, it can provide approximately 8 to 12 hours of backup power. This resets once the sun comes back up—at
that point, the batteries recharge and homeowners have more of power.
If your system is larger, or it is sunnier, the battery may charge faster. In winter, you’ll still be able to
effectively store energy. In fact, solar panels work more efficiently in colder temperatures.
Throughout the day, your solar energy system powers your home and keeps your battery charged. Now, if there is an outage in the night, Brightbox can power the things you care about most for approximately 8 to 12 hours or until the sun comes up again.
Keep your food cold, your lights on, and enjoy greater peace-of-mind during a power outage with Sunrun Brightbox.
Keep your food fresh
Power your lights
Open your garage door
Use the internet
* Backup time estimates are based on a fully charged battery and typical use of standard appliances, lights, and outlets.
Why Sunrun Brightbox?
It takes more than just solar battery storage to power your home and maximize solar savings. That’s where
Sunrun Brightbox comes in. Combined with our premier solar service, Sunrun Brightbox provides you with
backup power during outages and allows you to use solar power stored in the battery when your utility energy
rates are most expensive (Time-of-Use rates) depending on where you live.
Brightbox isn’t just a solar battery—it’s a smart solar energy storage service that’s managed by our team to
maximize your savings and ensure your system is in top condition, 24/7. To learn more, contact us today.
Make your home a Brilliant Home with Sunrun Brightbox™