Construction starts in Switzerland for the world's largest battery storage facility.

Tom Sperlich9 May 2025
The world's largest battery storage facility is being built in a new technology center in Laufenburg (TZL) in the Swiss canton of Aargau.

The redox flow battery, also known as a liquid battery or wet cell, will have a total capacity of more than 1.6 GWh and an output of over 800 MW.

Construction of the TZL began at the start of this week.