A system that stores electrical energy in rechargeable batteries so power can be used later, like a large-scale rechargeable power bank for homes, businesses, or the electricity grid. It matters to investors because it helps smooth out supply and demand, lets operators sell power when prices are higher, backs up critical services during outages, and supports more renewable generation — all of which can create new revenue streams and reduce operational risk.
second-life batteriestechnical
Used rechargeable batteries—most often from electric vehicles—that no longer meet strict requirements for vehicle range but still hold substantial capacity, repurposed for lower-demand tasks like storing electricity for homes, businesses, or the grid. For investors, second-life batteries can extend the revenue and value of battery assets, lower costs for energy storage projects, and reduce waste and regulatory risks, making battery-based businesses and clean-energy deployments more economical.
dispatchable energytechnical
Dispatchable energy is electricity that operators can turn on, off or adjust on demand to meet changing needs, provided by controllable sources like gas turbines, hydro plants or batteries. It matters to investors because these resources deliver predictable, on-call reliability and revenue streams — like a standby generator for the grid — which reduces the risk of outages and complement intermittent sources such as wind and solar.
stationary energy storagetechnical
Stationary energy storage are systems, usually batteries or similar devices, that sit in one place to store electricity for later use — like a household pantry that holds extra food until you need it. For investors, these systems matter because they turn intermittent power (for example from wind or solar) into reliably timed electricity, creating revenue from selling power at higher prices, providing grid services, reducing blackout risk, and qualifying for regulatory incentives or long-term contracts.
peak demandtechnical
Peak demand is the highest level of customer use or need for a product, service, or resource over a given period — for example the busiest hour, day, or season. Investors care because peak demand determines revenue potential, capacity needs and costs; like a store deciding how many staff to schedule for a holiday rush, companies must balance investment in extra capacity against the profit gained during those busiest times.
grid reliabilitytechnical
Grid reliability is the ability of the electrical power system to deliver continuous, stable electricity to homes, businesses and infrastructure without blackouts or harmful voltage swings. Investors care because power interruptions or instability can halt production, cut revenues, raise costs and invite regulatory action; like a bridge that must stay open for trade to flow, a reliable grid supports company operations, asset values and the case for investing in energy and utility-related projects.
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Largest repurposed battery energy storage system for a U.S. automotive manufacturer to cut energy costs, support grid reliability.
NORMAL, Ill.--(BUSINESS WIRE)--
American automotive and technology company Rivian (NASDAQ: RIVN) and critical materials and energy technology company Redwood Materials today announced a partnership to deploy pioneering battery energy storage at Rivian’s Normal, Illinois manufacturing facility. Using more than 100 second-life Rivian battery packs, Redwood and Rivian’s solution will initially provide 10 megawatt-hours (MWh) of dispatchable energy to reduce cost and grid load during peak demand periods—saving on cost and supporting grid security and reliability.
Rivian will provide EV battery packs to Redwood, who will integrate them into a Redwood Energy system, supported by the company’s Redwood Pack Manager technology, allowing their stored energy to be used on-site by Rivian’s plant in Normal. This system is rapidly scalable and offers significant cost benefits by using safe and proven EV batteries. This approach enables faster, more flexible deployment of energy capacity directly at high-demand sites like manufacturing facilities.
To capture and balance the growth in peak electricity demand expected, the U.S. must deploy massive amounts of energy storage. By 2030, estimates are that over 600GWh of storage is needed to meet growing demand, stabilize peaks, and power the technology innovation of the 21st century. This represents a virtual reservoir equivalent to the total energy output of the Hoover Dam running for two months straight.
“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."
"Electricity demand is accelerating faster than the grid can expand, posing a constraint on industrial growth," said JB Straubel, Redwood Materials Founder and CEO. "At the same time, the massive amount of domestic battery assets already in the U.S. market represents a strategic energy resource. 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."
EV batteries are often the longest-lived part of the vehicle itself, designed to last many hundreds of thousands of miles and, in many cases, to remain healthy even when the vehicle is retired, they are extremely valuable as stationary energy storage devices.
Stationary energy storage technologies play a key role in reducing cost and increasing stability both for the customer and the grid at large. For example, during periods of peak demand like heat waves, Rivian can instantly deploy energy stored in its second-life batteries to offset increased strain on the grid, avoiding having to purchase more expensive electricity while also avoiding additional load on the power system.
Redwood's deep expertise in battery systems and power integration positions the company to capture a massive domestic supply of energy storage that is already accumulating. By transitioning these packs into stationary assets before recycling them, we can extend their useful life, decrease reliance on imported energy storage, and defer billions of dollars in costly infrastructure upgrades.
About Rivian
Rivian (NASDAQ: RIVN) 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.
Learn more about the company, products, and careers at www.rivian.com.
About Redwood Materials
Redwood Materials is building the U.S. stockpile of critical materials and deploying large-scale energy storage. Founded by JB Straubel, the company produces lithium, nickel, cobalt, copper, and cathode active material at scale in the U.S., manufactures key components for advanced batteries, and deploys energy storage systems that power data centers and the nation’s grid. Redwood is expanding domestic capacity for next-generation energy storage and strengthening U.S. energy dominance.
