Re: Electricity Transmission

Eeyore wrote:

All these things are inherently lossy.

Of course, but how small can one make the losses? For SPS, the people
studying it were confident the losses could be kept managable. For very
long distances, it could beat the efficiency of conventional
power lines, evem extremely high voltage DC lines.

The idea is generally barking mad.

It may not be practical, mostly for economic reasons (launch costs are
far too high for it to make sense now) but you seem to be expressing
an overblown irrational prejudice here.

I wonder how much microwave energy would be absorbed by atmospheric water vapour
?

At the proper wavelength, not much. The designers get to pick the wavelength.
The worst attenuation would occur during heavy rain, but that doesn't happen
very often at any given site.

Paul
.

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