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Comment by derriz

Capacity factor of orbital solar PV panel: 97%

Capacity factor of terrestrial solar panel: 23%

Retail cost per watt for terrestrial panel: under 45c

Manufacturing cost per watt of space grade solar panel: up to $450

Annual performance degradation of terrestrial solar panel: under 0.5%

That of space-grade solar panel: up to 2%

Life span of terrestrial panel: about 2x that of space panel.

Total difference in cost per watt feeding a DC load in space vs on land: about x400

And that's ignoring launch costs. It makes absolutely zero sense. And given the scale of production and investment in manufacturing, terrestrial is likely to stretch even further ahead in the cost stakes.

parent derriz 29 days ago

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