Rivian Second-Life Battery Storage Project Links EV Packs to Grid Reliability

Rivian, Redwood

Rivian second-life battery storage is moving into commercial use after the US electric-vehicle maker agreed to deploy repurposed battery packs through Redwood Materials at its Normal manufacturing plant in Illinois. The project will use more than 100 used Rivian battery packs to provide 10 MWh of dispatchable battery energy storage.

The Rivian second-life battery storage project gives retired EV packs a second use before recycling. Redwood Materials will integrate the packs into a Redwood Energy system for on-site use at Rivian’s manufacturing facility.

Rivian second-life battery storage also reflects a wider shift in the battery value chain. Automakers and recyclers are looking for ways to extract more value from battery packs before recovering lithium, nickel, cobalt, copper, aluminium and other materials.

Redwood Turns Used EV Packs Into Stationary Storage

Redwood will receive EV battery packs from Rivian and convert them into a battery energy storage system for the Normal plant. The system will help reduce energy costs and support local grid reliability.

Second-life batteries are useful because EV packs can still retain meaningful capacity after vehicle use. They may no longer meet automotive performance requirements, but they can still serve stationary storage applications.

This creates a bridge between mobility and grid infrastructure. A battery pack can first support vehicle electrification, then provide stationary power, and later enter recycling for critical material recovery.

Redwood receives more than 20 GWh/yr of batteries, giving it a large feedstock base for both reuse and recycling. The company said it can deploy BESS projects in as little as six months, which matters as power demand rises quickly.

Data Center Power Demand Raises Storage Value

Rivian has attracted investors such as Google, which are seeking faster access to power solutions for artificial intelligence data center growth. This connection shows why second-life batteries are becoming more strategically relevant.

AI data centers need reliable, flexible and rapidly deployable power. Battery energy storage systems can help manage peak demand, improve resilience and reduce pressure on grids facing new large-load connections.

Repurposed EV batteries could become a lower-cost option where speed matters more than maximum energy density. They may also reduce waste and delay the need for immediate material recycling.

For the metals supply chain, this creates a more circular model. Battery materials stay in productive use longer, while recyclers build stronger long-term access to end-of-life packs and future recovered metals.

The Metalnomist Commentary

Rivian and Redwood are showing how EV batteries can become grid assets before they become recycling feedstock. The strategic value lies in extending battery life, lowering storage costs and securing future material recovery in one integrated loop.