Comment by ben_w

> How/why is this better than an enormous solar-powered datacenter in someplace like the middle of the Mojave Desert?

Night.

I mean, how good an idea this actually is depends on what energy storage costs, how much faster PV degrades in space than on the ground, launch costs, how much stuff can be up there before a Kessler cascade, if ground-based lasers get good enough to shoot down things in whatever orbit this is, etc., but "no night unless we want it" is the big potential advantage of putting PV in space.