Rivian is taking a major step toward closing the loop on battery life. The electric vehicle maker has officially announced a partnership with Redwood Materials to deploy a first-of-its-kind energy storage system at its Normal, Illinois, manufacturing facility. By repurposing more than 100 "second-life" battery packs from its vehicles, Rivian will create a 10 megawatt-hour (MWh) storage reservoir to help power the very plant where its cars are built.
This partnership is a massive win for sustainability. EV batteries are designed to be incredibly durable, often outlasting the vehicles themselves. Even when a pack is no longer ideal for high-performance driving, it still holds significant value for stationary storage. By utilizing these assets, Rivian is ensuring its environmental footprint remains as small as possible.
Repurposing for the R2 Ramp
The timing of this installation is particularly critical. Rivian’s Normal plant is currently gearing up for mass production of the R2, the company’s first affordable, mass-market SUV. After recently beating Q1 delivery estimates, the factory is under immense pressure to scale.
The new 10 MWh system will provide "dispatchable energy," meaning Rivian can pull power from these batteries during peak demand periods. This will not only lower energy costs for the company but also reduce the overall load on the local electrical grid, supporting reliability for the surrounding community.
“EVs represent a massive, distributed and highly competitive energy resource,” said Rivian Founder and CEO RJ Scaringe. “As energy needs grow, our grid needs to be flexible, secure, and affordable. Our partnership with Redwood enables us to utilize our vehicle’s batteries beyond the life of a vehicle and contribute to grid health and American competitiveness.”
Solving the Industrial Growth Constraint
The "secret sauce" behind this setup is Redwood’s proprietary Pack Manager technology. This system acts as a universal translator, allowing Redwood to communicate with and control different battery packs regardless of their original voltage or state of health.
JB Straubel, the founder and CEO of Redwood Materials (and former Tesla CTO), highlighted that the grid is currently struggling to keep up with the demands of modern manufacturing. “Electricity demand is accelerating faster than the grid can expand, posing a constraint on industrial growth,” Straubel said. “Our partnership with Rivian shows how EV battery packs can be turned into dispatchable energy resources, bringing new capacity online quickly, supporting critical manufacturing, and reducing strain on the grid without waiting years for new infrastructure. This is a scalable model for how we add meaningful energy capacity in the near term.”
A Scalable Model for the Future
This 10 MWh project is just the beginning. Redwood estimates that by 2030, the U.S. will need over 600 GWh of storage to stabilize the grid — a massive amount of energy equivalent to the Hoover Dam running for two months straight.
By turning old EV batteries into stationary assets before they are eventually recycled, companies can defer billions of dollars in costly infrastructure upgrades. As Rivian prepares to hand over the first R2 keys later this spring, its factory will be running on a smarter, more resilient energy loop that proves the "second life" of a battery is just as important as the first.
