It's difficult to see any of the alternatives displacing batteries for short-term storage. Batteries aren't a good fit for long-term storage, which is where alternatives should be competitive. But that market is essentially 0 right now.
The applications where additional batteries are not preferable to this complicated system are vanishingly slim IMO. I've seen this proposed over the years over and over, with people designing similar systems, and i've always ended up disappointed in the objective performance characteristics of them.
Another option is to simply repurpose old batteries to stationary storage applications. Even if it’s only holding a five percent charge, who cares if they’re just sitting in a building somewhere.
They're not cost competitive with batteries for diurnal storage, but they are competitive for low duty cycle demand on much longer time scales (like covering Dunkelflauten).
It's not exactly like i miss the old days of having AA batteries being spread around and that needs replacement all the time. It's more the lack of something with equivalent modularity, but bigger and with modern higher expectations on energy, power and charging. Like what we are used seeing in laptops, power tools, e-bikes, drones, cameras, torch, appliances, etc.
I hope you aren't making the assumption that storage = batteries, then arguing because weeks and months of batteries would be needed, it's impossibly expensive.
But costumer devices that use interchangeable standard size batteries have become super niche, at least outside a few fields where you expect years on a set of batteries.
But costumer devices that use interchangeable standard size batteries have become super niche, at least outside a few fields where you expect years on a set of batteries.
But costumer devices that use interchangeable standard size batteries have become super niche, at least outside a few fields where you expect years on a set of batteries.
But costumer devices that use interchangeable standard size batteries have become super niche, at least outside a few fields where you expect years on a set of batteries.
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