Neat News 55 (added 2016-02-24)

Storing Wind Energy

windturbine.jpg

A big problem for relying on wind power is storing the energy when there is surplus wind for times when it is calm. There is a neat idea to build big concrete balls of something like 30 metres in diameter which can be emptied from water in times of surplus energy and flooded through a turbine to produce electricity during a four hour period of still air.

News seen at: Der Spiegel - Science (in German)