RePurpose Energy is a clean-tech startup that’s tackling a growing problem: what to do with the massive wave of used electric vehicle (EV) batteries.
Founded in 2018 out of research at the University of California, Davis, the company aims to give these batteries a “second life” by turning them into energy-storage systems for buildings, businesses, and even the power grid.
RePurpose delivered its first commercial-scale system to Nissan North America in 2024. It has ongoing partnerships and pilot deployments, including systems supporting solar installations and critical infrastructure. It has also secured more than $9.9 million in non-dilutive grant funding from sources like the U.S. Department of Energy and the California Energy Commission.
One particularly important milestone: RePurpose Energy became the first U.S.-based company to achieve UL 1974 certification for repurposing EV batteries — a key safety and quality benchmark that could help accelerate adoption.