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Now for power storage. Sure, you can set up on the poles and get continual sunshine, but other places it's a bit more challenging. Kinetic Energy Storage Systems (KESS) perhaps? Of course making batteries from regolith would be a rather holistic regolithic solution.

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I wonder if thermal storage as a battery is more useful in space without an atmosphere to worry about. In general I wonder what kinds of processes are easier when everything is in a vacuum.

Dissipating heat in a vacuum is certainly more difficult, since it must all be done through radiation instead of convection. It follows that thermal storage would then be more efficient in a vacuum too. I couldn't say whether it would be "better enough" to make it a much more compelling option than it is on Earth though.

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