Moonwatt's Sodium-ion Battery Energy Storage Project Launched in Netherlands

Published: Feb 5, 2026 14:54

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Recently, Moonwatt announced that its sodium-ion battery energy storage project, implemented in the Cleantech Park in Arnhem, the Netherlands, has been successfully put into operation.
It is reported that this flagship project was jointly developed by Moonwatt, IPKW, and Veolia, marking the first practical deployment of a sodium-ion battery energy storage system specifically designed for hybrid solar power plants. The project utilizes Moonwatt's self-developed modular "string battery," which encapsulates sodium-ion battery cells in a passively cooled, sealed, and noiseless battery shell. Through a shared hybrid inverter and solar panels, it achieves DC coupling, effectively addressing challenges such as high costs and complex operation and maintenance during the hybridization of solar power plants, enabling seamless scaling from kilowatt to gigawatt levels.

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