• New purpose for used battery modules: Nunam tests prototype of a second-life energy storage system in Indian state of Uttar Pradesh
  • Initial results: Two battery modules supply electricity to roughly 50 small shops for just under a week
  • Rüdiger Recknagel, Managing Director of the Audi Environmental Foundation: “Technology can be sustainable if you consider not only its initial purpose during development but also a second or even third one”

Second life instead of premature recycling: German-Indian startup Nunam and its cofounder, Berlin-based Prodip Chatterjee along with his team have turned two Audi e-tron battery modules from test vehicles into a solar nanogrid. The newly developed energy storage system is currently being tested in daily use at a local energy service provider in India. The prototype currently allows roughly 50 shopkeepers and small businesses to continue working even after dark. The Audi Environmental Foundation is supporting the nonprofit start-up to advance research into the technical requirements for second-life power storage systems made of used batteries.

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Ka-Chow!