If they're going to make solar panels on the moon, perhaps the creativity won't stop there: Maybe we don't need to ship batteries, either. They can make batter

If they're going to make solar panels on the moon, perhaps the creativity won't stop there: Maybe we don't need to ship batteries, either. They can make batteries out of moon rocks [1], use fly wheels, melt lava, etc. None super efficiently, but as a start. [1] https://en.wikipedia.org/wiki/Gravity_battery https://en.wikipedia.org/wiki/Gravity_battery