Berechnung des Energiebedarfs für die Verwendung von Mondstaub, um Raketenkraftstoff zu erzeugen

> Next, the researchers estimated that a starship fuel tank would probably hold on the order of 500 metric tons of liquid oxygen.

Ignoring the little detail that the liquid oxygen goes in the oxidizer tank, not the fuel tank…where did they get that estimate? The real number is around 1200-1300 t.

Also, that’s on the ground, you’ll burn much of that getting to orbit.

> That would mean that their system would take approximately two years to produce enough fuel for one starship, for one voyage (if it ran full time).

Nothing in the article references how much power it would use to do so.
> They note that multiple systems could be used to reduce the production time.

…or they could build a bigger one. Either way, the bottleneck will be powering them.

They give an overall energy cost per kg of LOX, which seems to work out to about 700 kW, but I don’t see any reason why they’d prefer that scale.