Switzerland to Construct World's Largest Redox Flow Battery by 2029
FlexBase is developing a 2.1 GWh redox flow battery in northern Switzerland to enhance grid stability and support renewable energy storage. With a project cost exceeding one billion dollars, it aims to address fluctuating energy demands and will be operational by 2029.

In northern Switzerland, FlexBase is constructing a redox flow battery with a capacity of 2.1 GWh, designed to stabilize power grids and prevent blackouts. Scheduled for completion in 2029, the project will span two soccer pitches and cost over a billion dollars.
The battery's capacity can supply power to 210,000 households for a day and will be integrated with a technology complex that includes a data center and labs. This battery surpasses China's largest operational redox flow battery, which has a capacity of 700 MWh, and is seen as a long-term solution for energy storage. The technology, dating back to 1879, has been modernized and is expected to support increasing demand from AI data centers in the region.

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