My back of the envelope maths:

Suns energy at ISS is about 1.4KW/m2 Solar panels about 35% efficient but let’s say 50% for fun

700w/m2, or about one H100 worth per sq metre (hey, I could run my own H100 off a roof top panel !!)

We want a small 70MW data centre - which is 100,000 times the size so 100,000 m2 or an array 316mx316m or 15 football pitches

Then as it’s energy in and energy out you need radiators on dark side of same size

The ISS is ~ 2000m2, so that’s fifty ISSes

I mean it’s physically possible. But the engineering, the space launch costs they are staggering. And the upside is … Im not sure

All the win seems to be is free sun energy, but a data centre in Texas or Nigeria just needs about twice the solar panels and some big ass batteries.

Im not costing that out but, honestly it seems like a marketing pitch or a really obscure need to put compute beyond the reach of governments.