Land use requirements for ground-based solar

Conversion of 10 percent are common for basic silicon PV's today.
This has the potential to go up -- very much -- in the next few
decades.

Delivery of 60 percent is about right using today's batteries, and
high-voltage DC power lines for long-distances. This has the potential
to go up as well.

Also: although only in the lab right now, there are technologies for
direct conversion of solar energy to hydrogen, methane and methanol
fuels. Something SSP can't do.

--- In spacesettlers@yahoogroups.com, "William" wrote: