Comment by ericd
1 month ago
The real point is power limitations, putting stuff in space in the right orbit lets you turn solar power into reliable base load.
1 month ago
The real point is power limitations, putting stuff in space in the right orbit lets you turn solar power into reliable base load.
The disadvantage is that your power generation infrastructure needs replacing at the same time as your chips (at least under current designs) which negates any advantage of needing fewer solar panels at any one point in time and less energy storage.
Also you have to pay for them to be launched, which isn't cheap even if you're SpaceX.
Why stop somewhere in between? You can go straight to the Sun and directly tap into near infinite source of energy. No need of solar panels, direct access to thermonuclear energy, too cheap to meter. The economics already works out, zero capex, zero opex for the next ~4 billion years. Just needs a few small problems to be worked out, like a pipe to transfer energy.
I guess we'll see if their idea warrants your ludicrous comparison soon. Google is putting out a lot of real resources to test theirs out, so presumably it wasn't obviously insane to them when they ran the numbers.
I do not presume that. Plenty of projects that happen don't actually make economic sense.
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The problem with space is that you need to radiate all that waste heat.
Easy enough to do with a long tall stalactite shaped satelite.
Getting it up there and unfolding is an engineering problem, but if you have about 5 times the height as the width of your solar facing front it’s just a matter of moving heat around internally
No it's also all the minor problems: lubricants don't flow the same, grease dries out on bearings, rocket launches shake the hell out of their payloads, the thermal differentials across a structure are enormous, vibration doesn't damp into the earth it just rings through the structure till it's lost as heat.
All solvable, but all difficult and unexpected problems which make everything about operating in space difficult.
And probably the biggest one: absolutely no possibility of service or cheap replacement (sure you don't repair a computer on earth, but you don't need a rocket launch to put a new rack in).
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