Rivian and Redwood Materials have unveiled a forward-looking partnership aimed at transforming how electric vehicle (EV) batteries are utilized beyond their primary lifecycle. The collaboration centers on deploying advanced battery energy storage systems at Rivian’s manufacturing facility in Normal, Illinois—an initiative that reflects the growing convergence of automotive innovation, clean energy infrastructure, and grid resilience strategies.
A Strategic Collaboration to Power Manufacturing Sustainably
At the heart of this partnership is a shared vision: to repurpose used EV battery packs into valuable energy storage assets that can support industrial operations while reducing pressure on the electrical grid. Rivian will supply more than 100 second-life battery packs—units that have completed their use in vehicles but still retain substantial energy storage capacity—to Redwood Materials. These batteries will then be integrated into a modular energy storage system developed by Redwood, designed specifically for on-site deployment at Rivian’s production facility.
The system is expected to deliver an initial 10 megawatt-hours (MWh) of dispatchable energy. This means the stored energy can be released when needed, particularly during periods of peak electricity demand. By doing so, Rivian can significantly reduce its reliance on grid-supplied electricity during high-cost intervals, resulting in meaningful cost savings while also contributing to grid stability.
This initiative highlights a growing trend in industrial energy management—leveraging distributed energy resources to create more resilient and cost-effective operations. Instead of relying solely on centralized power generation, companies are increasingly adopting localized energy systems that can respond dynamically to fluctuations in demand.
Redwood Energy System: Unlocking the Value of Second-Life Batteries
A critical component of this partnership is Redwood’s proprietary energy storage platform, powered by its Redwood Pack Manager technology. This system is designed to optimize the performance, safety, and longevity of second-life battery packs when used in stationary applications.
The Redwood Pack Manager serves as the brain of the energy storage system, enabling seamless integration of multiple battery units and ensuring efficient energy distribution. It monitors battery health, manages charge and discharge cycles, and ensures that the system operates within safe parameters. This level of control is essential when repurposing batteries that have already undergone years of use in electric vehicles.
By utilizing proven EV battery technology, Redwood can deploy energy storage solutions more quickly and cost-effectively compared to building new battery systems from scratch. This approach not only reduces capital expenditure but also accelerates the timeline for bringing new energy capacity online—an increasingly important factor as electricity demand continues to surge.
Addressing the Growing Demand for Energy Storage
The timing of this partnership is particularly significant given the rapid growth in electricity consumption across the United States. Driven by factors such as electrification, data center expansion, and the proliferation of advanced manufacturing technologies, demand for power is rising at an unprecedented pace.
To meet this demand while maintaining grid stability, experts estimate that the U.S. will need to deploy more than 600 gigawatt-hours (GWh) of energy storage capacity by 2030. This massive requirement underscores the urgency of developing scalable, cost-effective solutions that can be implemented in the near term.
The energy storage system being deployed at Rivian’s facility represents a small but meaningful step toward this broader goal. With an initial capacity of 10 MWh, the system demonstrates how second-life EV batteries can be aggregated to create significant energy resources. When scaled across multiple sites and industries, this model has the potential to contribute substantially to national energy storage capacity.
To put this into perspective, 600 GWh of storage is equivalent to the total energy output of the Hoover Dam operating continuously for approximately two months. Achieving this level of capacity will require a combination of new battery production, grid-scale storage projects, and innovative approaches like the reuse of EV batteries.
Enhancing Grid Resilience and Industrial Competitiveness
One of the key benefits of this initiative is its ability to enhance grid resilience. During periods of peak demand—such as heatwaves or extreme weather events—electricity consumption can spike dramatically, placing strain on the power system. In such scenarios, having access to on-site energy storage allows facilities like Rivian’s plant to reduce their reliance on the grid.
By drawing on stored energy during peak periods, Rivian can avoid purchasing electricity at elevated prices while also helping to alleviate stress on the grid. This not only benefits the company financially but also contributes to broader efforts to maintain grid stability and prevent outages.
RJ Scaringe, Founder and CEO of Rivian, emphasized the strategic importance of this approach, noting that electric vehicles represent a vast and largely untapped energy resource. As the number of EVs on the road continues to grow, so too does the potential for leveraging their batteries in new and innovative ways.
According to Scaringe, the ability to extend the lifecycle of EV batteries beyond the vehicle itself is a key component of building a more flexible, secure, and affordable energy system. By integrating second-life batteries into industrial operations, companies can play an active role in supporting grid health while enhancing their own competitiveness.
A Scalable Model for Rapid Energy Deployment
From Redwood Materials’ perspective, the partnership with Rivian serves as a proof of concept for a broader strategy aimed at unlocking the value of existing battery assets. JB Straubel, Founder and CEO of Redwood Materials, highlighted the growing mismatch between electricity demand and the pace of grid expansion.
As industrial activity accelerates and new technologies drive increased power consumption, traditional infrastructure development struggles to keep up. Building new power plants and transmission lines can take years, if not decades, to complete. In contrast, deploying energy storage systems based on second-life batteries offers a much faster and more flexible solution.
Straubel pointed out that a significant volume of battery capacity already exists within the U.S. in the form of used EV batteries. By repurposing these batteries for stationary applications, companies can effectively create new energy resources without the need for additional raw materials or manufacturing processes.
This approach also aligns with broader sustainability goals by extending the useful life of batteries and reducing the environmental impact associated with their production and disposal. Instead of being immediately recycled, batteries can serve a second purpose, maximizing their value and minimizing waste.
The Role of Second-Life Batteries in the Energy Transition
Electric vehicle batteries are designed to be durable and long-lasting, often capable of operating for hundreds of thousands of miles. Even after they are no longer suitable for use in vehicles, these batteries typically retain a significant portion of their original capacity—making them ideal candidates for stationary energy storage.
By repurposing these batteries, companies like Rivian and Redwood Materials are tapping into a valuable resource that would otherwise remain underutilized. This not only supports the transition to renewable energy but also helps to address challenges related to resource scarcity and supply chain constraints.
Stationary energy storage plays a crucial role in enabling the integration of renewable energy sources such as solar and wind. These sources are inherently intermittent, meaning their output can fluctuate based on weather conditions. Energy storage systems help to smooth out these fluctuations by storing excess energy when supply is high and releasing it when demand increases.
In the context of industrial operations, this capability is particularly valuable. Manufacturing facilities often have high and variable energy demands, making them ideal candidates for on-site storage solutions. By incorporating second-life batteries into their energy strategy, companies can achieve greater operational flexibility and resilience.
Economic and Environmental Benefits
The partnership between Rivian and Redwood Materials also delivers significant economic advantages. By reducing reliance on grid electricity during peak periods, Rivian can lower its energy costs—a critical consideration in an industry where margins are often tight.
At the same time, the use of second-life batteries reduces the need for new battery production, which can be both resource-intensive and costly. This contributes to a more efficient use of materials and supports efforts to build a circular economy within the battery industry.
From an environmental perspective, extending the lifecycle of batteries helps to reduce waste and minimize the carbon footprint associated with battery manufacturing. It also decreases dependence on imported energy storage technologies, strengthening domestic supply chains and enhancing energy security.
Redwood Materials’ expertise in battery recycling and materials recovery further enhances the sustainability of this approach. Once the batteries have reached the end of their second life, they can be recycled to recover valuable materials such as lithium, nickel, and cobalt—closing the loop and enabling the production of new batteries.
Scaling the Model Nationwide
While the initial deployment at Rivian’s Normal, Illinois facility represents a relatively modest scale, the implications of this partnership extend far beyond a single site. The model developed by Rivian and Redwood Materials has the potential to be replicated across a wide range of industries and locations.
As more EVs reach the end of their lifecycle, the supply of second-life batteries will continue to grow. This creates an opportunity to build a distributed network of energy storage systems that can support both industrial operations and the broader electrical grid.
By demonstrating the viability of this approach, Rivian and Redwood Materials are paving the way for a new paradigm in energy management—one that leverages existing assets to create scalable, sustainable solutions.
The collaboration between Rivian and Redwood Materials represents a significant step forward in the evolution of both the automotive and energy sectors. By repurposing second-life EV batteries into stationary energy storage systems, the two companies are addressing critical challenges related to energy demand, grid stability, and sustainability.
Through innovative technologies like the Redwood Pack Manager and a commitment to circular economy principles, this partnership demonstrates how existing resources can be harnessed to create new value. As the need for energy storage continues to grow, initiatives like this will play an increasingly important role in shaping the future of industrial operations and the global energy landscape.
About Rivian
Rivian is an American automotive technology company that develops and manufactures category-defining electric vehicles as well as vertically integrated technologies and services. Through innovation across its electrical architecture, end-to-end software, autonomous driving platform, artificial intelligence and propulsion, the company creates vehicles that excel at work and play while accelerating the global transition to zero-emission transportation and energy. Rivian vehicles are manufactured in the United States and are sold directly to consumer and commercial customers. Whether taking families on new adventures or electrifying fleets at scale, Rivian vehicles all share a common goal — preserving the natural world for generations to come.
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