A new pumped-storage power station, one of the most powerful in Europe, came on stream in canton Valais in southern Switzerland in July 2022. This giant “water battery” will help compensate for fluctuations in solar and wind power on the continent. The global challenge is not only to produce more energy from renewable sources, but also to be able to store it. Whether you're an engineer, a policy wonk, or just a curious eco-warrior, stick. Utility EWS AG and developer MW Storage have completed the expansion of a battery energy storage system (BESS) project in Switzerland from 20MW to 28MW, making it the country's largest. The companies inaugurated the newly expanded project last week in a ceremony last week (24 May), which adds 8MW. This chart shows the percentage fill level of the Swiss reservoirs in Valais, Grisons, Ticino and the rest of Switzerland, as well as the hydropower reserve. 5 MWh GSS® Grid Storage Solution system is owned and operated by one of Switzerland's largest power distribution companies, EKZ (Elektrizitätswerke des Kantons Zürich).
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