Originally Posted by mimartin
From what I'm reading, the station produces it own hydrogen. There is no need for distribution. It sounds to me that the only cost after construction would be maintenance and paying the water bill. Unless someone figures out a way to charge us for sunlight.
Forgetting one major expense: interest. You always have to take into account what you have to pay for interest off borrowed funds. Nuclear breeder reactors are WAY better than standard, but because they cost twice as much to build, it doesn't matter if you can get 20x the amount of energy per unit of fuel. The same thing goes for solar. If you can't produce much energy, then it doesn't matter if what little you get is free.