

Could be decent. Has about 20-25% energydensity of a modern NMC EV battery. While that isn’t incredibly groundbreaking, keeping a building sized battery of this kind in an industrial area sounds pretty feasible.
Probably won’t ever hear about it again, but fingers crossed it’s a good product.




Possibly, question is which one fits a given area the best. Pumped hydro needs some place high to pump it. Many places are incredibly flat, but in hilly or mountainy places it has some clear advantages. Thermal has the issue of losing the heat. You need to insulate a “battery” a lot, and at some point it just becomes incredibly expensive for very little results. It’s not impossible, but it can be a very expensive solution. LiFePO4 has the drawback of needing lithium, which is pretty rare in most of the world. If what the article says is true, the “water battery” seems to be pretty inexpensive to build with quite available ressources, but the drawback is that it likely needs more space than other options.