[ExI] Power satellites microwave power transmission

[Keith Henson]

On Thu, May 26, 2011 at 1:20 AM, Eugen Leitl <eugen at leitl.org> wrote:

snip

> An ideal setup for an SPS is to make solar cells double as phased
> array on on the other side, so they can use realtime beamforming to track
> ground-side rectenna or rectennas array(s) (the beam can be retargeted within
> few ~ms).

Solarn has proposed this design.  They think they can get 17 kW per kg
of material, 85 times the 5 kg/kW I have been using.

If they are right and I am right about reducing the cost to GEO, then
the energy and carbon problems will be oversolved.

Keith