One of my favorite theoretical energy storage methods is manmade island dams. The idea is to build a circular dyke in the ocean, and then use the encapsulated

One of my favorite theoretical energy storage methods is manmade island dams. The idea is to build a circular dyke in the ocean, and then use the encapsulated sea as pumped hydro storage. It would be paired with a windfarm, floating solar, and whatever other power generating methods would easily co-locate. Unsurprisingly, the Dutch seem to have put a lot of thought into it: https://deingenieur.nl/artikelen/lievense-de-man-van-het-opslagbekken https://deingenieur.nl/artikelen/lievense-de-man-van-het-ops...