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

Contributions under this article have been turned off. You can find an overview of ongoing debates with our journalists here. Please join us!

If you want to start a conversation about a topic raised in this article or want to report factual errors, email us at

Share this story

Change your password

Do you really want to delete your profile?