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Moonwatt is set to launch a sodium-ion battery energy storage system for hybrid solar plants at Cleantech Park Arnhem in the Netherlands in 2026, supported by a €1.15 million DEI+ grant. The modular 'string battery' system features passive cooling and is designed to enhance scalability and performance while reducing costs. This innovative technology aims to address challenges in solar plant hybridization, offering improved thermal stability and lower maintenance needs.