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A comment on Darkest and clearest skies at risk from industrial megaproject. Parent comment

Re:Darkest and clearest skies at risk from industrial megapr... by JumpCrisscross on Sunday January 12, 2025 @11:27AM (#42674670)
> choices for small-scale energy sources are: batteries with all their dirty mining, biofuels taking away lots of arable land from food/textile/etc production, or fuel cells

Storage also includes flywheels and pumped hydro. Hydrogen is mostly a farce.

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Re:Darkest and clearest skies at risk from industrial megapr... by kbolino on Sunday January 12, 2025 @01:48PM (#42675763)
The key adjective there is "small-scale". There are many more alternatives when size is not an issue. Flywheels are very useful but their energy density is too low to be the primary power source for a vehicle.
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