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A comment on Energy Vault – Gravitational Batteries. Parent comment

Re:Energy Vault – Gravitational Batteries by simonebrunozzi on Monday January 11, 2021 @06:33AM (#25727574)
I would use depleted uranium for that. Many countries have to store thousands of tons of it, and governments will pay you for storing it. Instead of making it sit idle, you might as well use one of its finest qualities (density).
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Re:Energy Vault – Gravitational Batteries by lovemenot on Monday January 11, 2021 @07:36AM (#25728081)
Let's make Fort Knox fully renewable by storing wind/solar in stacked gold bars.
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Re:Energy Vault – Gravitational Batteries by fsh on Monday January 11, 2021 @07:09AM (#25727862)
Thousands of tons is a very small amount of mass for gravitational energy storage. The capacity of small pump storage reservoirs is measured in millions of tons. Also one probably wouldn't want to use a somewhat toxic and slightly radioactive material at large scale.
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