In 2021, the Grohnde nuclear power plant in Lower Saxony on the Weser River was shut down. Now, immediately next to it, the Emmerthal energy cluster is growing with three very large battery storage systems, ground-mounted photovoltaic systems, and a new substation for several 380-kilovolt high-voltage lines.
I think the pumped storage is more used when there is an excess of electricty, for example when wind power plants produces large amount of electricity and the prices goes toward zero, or sometime negative.