I don't get it. I really don't.
You can calculate the minimum cost, you can calculate heat, maintenance and probably also the expected failerrate for the hardware.
But even if the failerrate is something you need to figure out, that would probably some R&D thing which you would test and verify in a very small and cheap setup.
Same stupid shit with the mirror in space which will send sun back to some PV panels on earth.
Cool stuff in a non capitalistic system but otherwise it just shows that plenty of people have too much money to invest in weird things without understanding it at all.