It sounds quiet inefficient to me. The energy differential comes from the different salt concentrations, so you have to move a lot of water to exploit a relatively low mass differential.
Mentions of efficiency are conspicuously absent from the article.
Another potential problem is marine ecology: pumping high-salt sea water to the top and releasing it en masse might lead to much larger fluctuations in salt concentration than what the ecosystem is used to.
That said, we need many different approaches to solve energy storage, and I hope to be wrong, and that they end up very successful.
Yeah no mention of how it would effect marine ecology is bad, but the avg startup/mega-corp doenst care see how far people are trying to make deep sea mining legal, even with its obvious implications of destroying the sea
Mentions of efficiency are conspicuously absent from the article.
Another potential problem is marine ecology: pumping high-salt sea water to the top and releasing it en masse might lead to much larger fluctuations in salt concentration than what the ecosystem is used to.
That said, we need many different approaches to solve energy storage, and I hope to be wrong, and that they end up very successful.