There's a patch between Denmark and Norway which is ~700m deep. This a few hundred kms north of Germany. This is actually closer to most of Germany's wind gener

There's a patch between Denmark and Norway which is ~700m deep. This a few hundred kms north of Germany. This is actually closer to most of Germany's wind generation than Bavaria, which is much further south. https://www.researchgate.net/profile/Marie_Maar/publication/234092735/figure/fig1/AS:299979634692096@1448532126208/Fig-1-Model-domain-longitude-latitude-and-bathymetry-m-of-the-North-Sea-Baltic.png https://www.researchgate.net/profile/Marie_Maar/publication/... I'm not very bullish on the technology however, maintaining anything in the ocean is a difficult challenge. My guess is a mixture of batteries and power to gas would probably wind up being easier to scale up, and cheaper in the long run.