Redwood Materials: $350 Million Series E Raised To Advance U.S. Energy Storage Expansion

By Amit Chowdhry • Oct 27, 2025

Redwood Materials announced the close of its $350 million Series E funding round, led by Eclipse with participation from new strategic investors, including NVentures, NVIDIA’s venture capital arm. The oversubscribed round underscores strong investor confidence in Redwood’s mission to build a vertically integrated domestic supply chain for energy storage and critical materials.

The new funding will support expansion across Redwood’s two core business lines: 1) Critical Materials, including cobalt, nickel, copper, lithium, and cathode active material, and 2) Grid Energy Storage, focused on delivering large-scale, low-cost systems optimized for seamless grid and industrial integration.

The raise comes at a pivotal moment for both Redwood and the U.S. energy ecosystem, as domestic demand for essential minerals surges while international supply chains face disruption. With AI infrastructure growth driving unprecedented electricity needs, Redwood’s large-scale battery energy storage systems aim to unlock stranded generation capacity and enable the rapid deployment of data centers nationwide.

Beyond powering AI operations, Redwood’s systems are designed to strengthen the grid, enhance renewable integration, and support industrial electrification. When paired with natural gas turbines and emerging nuclear generation, large-scale storage can dramatically boost efficiency and utilization of baseload assets—key to stabilizing future energy supply.

Leveraging its expertise in materials, manufacturing, and advanced power electronics, Redwood is developing a new generation of U.S.-made storage systems that reduce dependence on imported LFP batteries. The fresh capital will fuel the expansion of Redwood’s energy storage deployments, refining and materials production capacity, and its engineering and operations teams.

Redwood emphasized that it is actively hiring to scale its U.S. footprint and advance the next era of American energy leadership and critical minerals independence.

KEY QUOTES

“With this new capital, Redwood will accelerate the expansion of our energy storage deployments, refining and materials production capacity, and our world-class engineering and operations teams. We’re actively recruiting those who want to shape the next era of American energy leadership and critical-minerals independence. Join us!”

“We’re grateful to our many existing partners participating in this investment and excited to welcome new investors as we take the next steps toward building a resilient, dominant U.S. energy future.”

Redwood Materials statement