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RWE has taken a final investment decision to build a 400 MW / 1,100 MWh battery storage system at its Moerdijk power station site in the Netherlands — one of the largest battery projects in the country. Commissioning is planned for the second quarter of 2028.
The system will consist of 208 lithium-ion battery containers and can deliver its full output for almost three hours, enough to cover evening peak demand for around 500,000 households, RWE said. The site in Noord-Brabant is in the province where grid congestion has been among the most acute in the Netherlands.
RWE positioned the battery as part of the system integration of its OranjeWind offshore wind project, using the storage to smooth renewable output and ease congestion at a strategic grid node.
The Dutch market has become one of Europe’s most active for grid-scale storage, driven by persistent congestion and a falling cost curve for four-hour lithium-ion systems. For C&I project owners, the Moerdijk decision is a signal that utility-scale flexibility is now clearing the investment bar at scale in the Netherlands.
