Moonwatt to Launch Sodium-Ion Battery Energy Storage System for Hybrid Solar Plants in Netherlands
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.

Moonwatt will deploy a sodium-ion battery energy storage system designed for hybrid solar plants at Cleantech Park Arnhem in the Netherlands in 2026. This modular 'string battery' system features passive cooling and is DC-coupled to solar panels via a hybrid inverter, addressing solar plant hybridization challenges, including cost reduction and performance improvement.
The company has secured a €1.15 million DEI+ grant from the Dutch Business Agency, recognizing the innovative nature of its technology. Moonwatt's solution emphasizes scalability, allowing projects to expand from kilowatts to gigawatts. The sodium-ion chemistry provides enhanced thermal stability and longevity, while the passive cooling system minimizes maintenance needs and operational costs.




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