Pumped Hydro Storage

Pretty much zero chance of that. The complexity (moving parts, machined parts, number of generators, number of electrical interconnects (etc.) is so much higher per kilogram basis compared to pumped hydro. Much of the country does half of pumped hydro (storing potential energy in water towers) and delivers it to your door for fractions of a penny per kg, a price that includes a complete distribution network and sourcing/purification of the water.

Pumped storage, but anywhere:https://www.forbes.com/sites/peterdetwiler/2019/08/14/tower-...

Because the amount of energy stored is absolutely minuscule relative to the amount of resources needed to construct it.Here are some links you can read: https://news.ycombinator.com/item?id=8646787 https://news.ycombinator.com/item?id=13094425Hydro storage works because water is avail

Local kinetic storage like pumped hydro have an efficiency advantage over batteries (at least with current tech)

Or just use pumped-storage hydroelectricity

Is this not just pumped hydro but worse?

Here's a great piece that does the maths on various approaches. And shows that pumped storage is basically the only optionhttps://cleantechnica.com/2024/06/10/gravity-storage-101-or-...

You mean like this? https://en.wikipedia.org/wiki/Pumped-storage_hydroelectricit...

You don't know what you're talking about and provided no evidence. Pumped energy storage goes up to 80%+ efficient and is extremely scalable.

Storage doesn't have to mean batteries. I'd have thought approaches like pumped hydro [1] could scale pretty well. I vaguely recall a similar story from a couple of years back that basically involved lifting giant concrete blocks.[1] http://www.british-hydro.org/pumped-storage/