Electric power storage plate number query website

The DOE Global Energy Storage Database provides research-grade information on grid-connected energy storage projects and relevant state and federal policies. All data can be exported to Excel or JSON format. [pdf]

Number of pumped storage power plants in germany

There currently are 26 pumped storage hydro power stations in Germany with a total capacity of 6.3 GW and a further 3.4 GW are "regularly" provided from stations abroad, the government added. [pdf]