Ethanol From Waste Straw

--- In ssi_list@... "Xenophile"

> *Does* SPS need a grid? SPS could, perhaps, beam power to
individual
> homes.

The minimum useful size for an SPS rectena is approximately 5 km
diameter, or about a couple of Gigawatts. This is governed by the
intesities used and the limits on size of the transmit antenna, aka
Rayleigh's Diffraction Law

Not appropriate for individuals.