900MW power and 20GWh capacity. Looks like Switzerland consumes around 60TWh yearly. Naively divided by 365 days thats 164GWh daily power consumption, again naively devided by 24 hours it's around 7GWh per hour. Maximum output is 900MW so 0.9GW. This is vastly off because demand is probably very uneven distributed but so is availability of renewables - see also here for germany: <a href="https://energy-charts.info/charts/power/chart.htm?stacking=stacked_absolute_area" rel="nofollow">https://energy-charts.info/charts/power/chart.htm?stacking=s...</a> - but I wanted to get an idea how big this is.<p>Pretty impressive. Might be enough to allow the surrounding area to run on 100% renewables. Not sure how realistic it is to build another five to ten of these but it doesn't look like it's impossible and would probably be enough to be fully self-sustained most of the time.
Calling this a „water battery“ is just the stupidest thing I have ever heard.
Just a clickbait title and a pretty bad one too.<p>They are created since the 19 hundreds.<p><a href="https://en.wikipedia.org/wiki/Pumped-storage_hydroelectricity" rel="nofollow">https://en.wikipedia.org/wiki/Pumped-storage_hydroelectricit...</a>