25 Apr '14, 4pm

How Viable is Space-Based Renewable Energy?

How Viable is Space-Based Renewable Energy?

On the minus side is the fact that hundreds, perhaps thousands, of satellites would need to be launched into geostationary orbit in order to generate enough power, requiring perhaps billions of dollars in investment for something that will likely never be repaired. The Hubble Space Telescope, for example, is a mere 347 miles high, while space-based solar collectors would be somewhere around 22,000 miles. The energy would be converted from solar energy to microwave or laser energy, to beam down to a receiving pad on Earth, which might need to be several miles in diameter. Also, this renewable energy source, possibly a powerful one, could be misused and converted into a space-based weapon, so there’s that.

Full article: http://www.greenoptimistic.com/2014/04/25/viable-space-ba...

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