Sunrun Inc., the largest dedicated residential solar company in the United States, and LG Chem, a leading global manufacturer of advanced batteries, on Wednesday announced a partnership to launch LG Chem’s energy storage technology in the U.S. residential solar market.

Sunrun will offer LG Chem’s lithium-ion RESU batteries through Sunrun BrightBox solar generation plus energy storage systems.

LG Chem is the world’s largest automotive battery supplier, counting 16 of the top 29 global automakers as partners. The Sunrun/LG Chem partnership expands the application of LG Chem’s energy storage technology to the consumer residential market allowing more families access to clean, affordable energy.

“The energy storage market is advancing at a breakneck pace. At Sunrun, we are enabling a home energy management service that integrates rooftop solar generation with onsite energy storage to offer greater energy choice and savings to our customers while helping to modernize the grid,” said Sunrun Chief Marketing Officer Michael Grasso.

In the future Sunrun BrightBox will allow consumers with time-of-use tariffs to time shift when they use solar energy to minimize paying peak rate energy prices, said Sunrun. BrightBox will also allow customers the ability to have access to power when grid power isn’t available.

Sunrun will also make LG Chem’s battery solution available to the entire solar energy industry through its subsidiary AEE Solar, the leading nationwide distributor of solar products.