For this to work they need to have some way to land large objects on the moon, for one thing. Right now that doesn't exist.
One reason you might want one for a human settlement is that the "day" on the moon is a whole month so, in most places, you have no sunlight for 14 days so you would need at least two weeks of storage to get through the night on solar energy.
Wouldn’t having a closed loop system of hydrogen and oxygen as fuel be a more efficient way to store energy? Especially at the poles where there’s always illumination and hydrogen is abundant.
