[ExI] Space based solar power again

Stefano Vaj stefano.vaj at gmail.com
Fri Feb 5 22:44:07 UTC 2010

On 4 February 2010 20:09, Keith Henson <hkeithhenson at gmail.com> wrote:
> Even at a million tons per year (what's needed for a decent sized SBSP
> project) the odds are against the cost being low enough for power
> satellites to make sense (i.e., undercut coal and nuclear) if you try
> to transport the parts with chemical rockets.
> You either have to go to some non reaction method, magnet launcher,
> cannon, launch loop or space elevator, or you have to go to an exhaust
> velocity higher than what the energy of chemical fuels will give you.

Or  - be it just in theory - you can go to some nuclear reaction,
Project Orion-like, method, which would be in my understanding much
easier to implement, at the state-of-the-art, than any of the

Stefano Vaj

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