[ExI] EP and Peak oil.

[Bryan Bishop]

On Friday 04 April 2008, Keith Henson wrote:
> I don't even know which of the three currently proposed transport
> methods will work out.  The space elevator has the best return on
> energy, but it takes a massive orbital cleanup project plus
> developing strong enough nanotube fibers and ways to recover from a
> cut cable. Since the output is very low cost energy that can be fed
> back into the launch mechanism, requiring a lot of launch energy only
> delays the point at which the project starts paying for itself by a
> few months.

Have you considered the solar power satellite people? They are 
suggesting power-beaming back to the surface, but this does in fact 
require quite large satellite dishes for the rectifiers.

- Bryan
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