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How the water battery works

The amount of electricity that can be stored thanks to the new pumped-storage and turbine power station in Nant de Drance, canton Valais, could charge more than 400,000 electric car batteries. Its director explains the role of this "water battery" for electricity supply and grid stabilisation in Switzerland and Europe.

This content was published on September 3, 2021 - 09:00

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