SMRTR Science & EngineeringMay 4, 2026Interesting Engineering

‘World’s most powerful redox flow battery’ could power 210,000 Swiss homes for a day

SMRTR summary

Swiss energy firm FlexBase is building the world's most powerful redox flow battery in Laufenburg, capable of storing 2.1 GWh — enough to power 210,000 homes for a full day. Costing up to $6.2 billion and set to open in 2029, it will stabilize Europe's grid and power AI data centers.

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