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BW ESS puts Europe's largest BESS into commercial operation in the UK
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Fusion42 · 3 November 2026 · Fusion42 review
BW ESS has commissioned the largest battery energy storage system (BESS) in Europe at its Hams Hall site in the UK, with a capacity of 350MW/1,240MWh, expanding to 400MW/1,424MWh after a second phase is completed. The project leverages technology from Sungrow and is optimized by EDF.
This Wire brief sits within Fusion42's coverage of Climate Tech, and 5 sources have reported it between 22 Oct 2026 and 3 Nov 2026.
◆ ◆ The Wire takeaway
Large-scale battery storage is proving viable and scaling quickly in the UK energy market. If you build energy or grid tech, this project opens routes to supply or partner in the expanding UK storage infrastructure.
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5 sources · first reported 22 Oct 2026 · latest 3 Nov 2026
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