“A ball full of power”
The German invention of an underwater concrete ball to store electricity will not solve the country’s storage challenges, writes Susanne Preuß in an opinion piece for the Frankfurter Allgemeine Zeitung. “But it is an additional piece of the mosaic formed by the use of a multitude of renewable energies,” writes Preuß. The technology only makes sense when used at a depth of several hundred metres close to the coast, which is impossible in Germany, she writes in a separate article.
Also read the CLEW factsheet How can Germany keep the lights on in a renewable energy future?