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I look forward to hearing their numbers for energy return on energy invested https://dothemath.ucsd.edu/2012/03/space-based-solar-power/ https://dothemath.ucsd.
by cratermoon 3y ago
I look forward to hearing their numbers for energy return on energy invested https://dothemath.ucsd.edu/2012/03/space-based-solar-power/ https://dothemath.ucsd.edu/2012/03/space-based-solar-power/
- thegrim33 3y agoTheir analysis puts earth-based solar in the most ideal locations on earth, namely North Africa and the Mojave desert, but then they assume a literal 0% cost in transmitting that power to where it needs to be used. Their analysis also completely ignores any cost and complexity involved with batteries / energy storage for earth-based solar. Yeah, I think any conclusion they've come to is pretty baseless considering the sloppiness of their calculations.
- cratermoon 3y ago"giant desert installations of PV on the ground will incur a similar cost (though higher because the demand is farther from the source)." I suppose it's too much to ask folks who frequent HN to read the whole article.
- hulitu 3y agoThey don't invest any energy. It comes from the sun. /s