this post was submitted on 11 Mar 2025
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Technology

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[–] [email protected] 13 points 3 days ago (1 children)

It’s kinda funny that just stacking rocks is an efficient energy storage solution.

[–] [email protected] 5 points 3 days ago

That's why the aliens built the pyramids!!1!!! To store energy for their perpetual motion time cube!

/s

[–] [email protected] 4 points 2 days ago

Love clever and simple stuff like this.

[–] [email protected] 7 points 3 days ago* (last edited 3 days ago) (2 children)

Wasn't this already debunked as a poor replacement for pumped storage hydro electric? The blocks and the things moving them will always have more wear than water and turbines.

[–] [email protected] 4 points 2 days ago (1 children)

Recycling lithium ion batteries isn't easy either though, and you might not have the geography for hydro.

[–] [email protected] 1 points 2 days ago

I believe the argument against solid block gravity batteries is that you can achieve the same thing with water by using old mines or even just digging a 40story hole. If you have room for the 40 story tower then you have room for a more efficient pumped hydro hole.

[–] [email protected] 0 points 3 days ago (1 children)

Plus, concrete is super dirty to produce and actually not so dense.

[–] [email protected] 4 points 2 days ago (1 children)

The article mentions using greener things like waste and soil.

And if you were using redundant mine shaft thats greener than building new structures.

[–] [email protected] 1 points 2 days ago

Arguably you could use pumped hydro with the abandoned mine shaft?

[–] [email protected] 1 points 3 days ago (2 children)

It's not really a battery killer at all. It would never fit or be useful in a car, phone or anything portable. It's more of a possible replacement to pumped-storage hydroelectric.

[–] [email protected] 5 points 2 days ago

Thats not what they're using it for. This is an alternative to pumped hydro or big lithium arrays.

[–] [email protected] 6 points 3 days ago

Batteries are increasingly used for large scale storage now, especially with renewables becoming more prevalent.