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A comment on Maximizing Battery Storage Profits via High-Frequency Intraday Trading. Parent comment

Re:Maximizing Battery Storage Profits via High-Frequency Int... by HPsquared on Friday June 13, 2025 @06:33AM (#44267286)
Freight trains have very powerful versions of those onboard. You'd just have to repurpose them. It's called "dynamic braking".

https://en.m.wikipedia.org/wiki/Dynamic_braking

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Re:Maximizing Battery Storage Profits via High-Frequency Int... by eru on Friday June 13, 2025 @09:52AM (#44268552)
Some electric cars have that as well.

Btw, many passenger trains have something like that as well, especially in the metro or tube: the stations are deliberately built slightly higher than the normal lines, so that you can convert kinetic and potential energy back and forth.

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