this post was submitted on 17 May 2024
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Mechanical Engineering

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The Power of Sand Batteries (youtube.com)
submitted 7 months ago by Alteon to c/mechanical_engineering
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Crosspost from the "Energy" Community. Seemed too good not to put here.

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[โ€“] AFKBRBChocolate 1 points 7 months ago (1 children)

Sand batteries are inefficient but cheap.

[โ€“] Alteon 2 points 7 months ago

That's a good article. Ten times less efficient than a chemical battery, but 10 times cheaper, and the only component that ever needs to be replaced is a cheap fan that pumps the air through the battery.