Transmission wires from the Moon to Earth - Believe it ! ! ! ! Forum: Spacesettlers
Thread: Transmission wires from the Moon to Earth - Believe it ! ! ! !
# 2456 bytango_dancer@... on Feb. 9, 2002, 1:48 a.m.
Member since 2021-10-03
I'm still chuckling over this article. I swear, I didn't cook this
up. They actually wrote it.
Why don't we build a solar plant on the moon and beam the energy
back to Earth?
We don't do this for the same reason we don't cover North Dakota
with wind turbines to supply the whole country with electricity;
transmission costs. Disregarding the insanely expensive cost of
building a solar plant on the moon, transmitting this energy back
would be technically impossible. In addition, with the rotation of
the moon and the earth as they are, the transmission cables would
quickly become terribly tangled.
"Beaming" electricity is not quite the same as beaming Scotty up to
the Enterprise. Electricity travels along transmission cables that
are inefficient and very expensive: high voltage cables can cost
thousands of dollars per mile. [42] If we could devise a way to
efficiently "beam" electricity without transmission cables, we would
be utilizing this technology first to connect earthbound power
plants with various earthbound consumers.
Perhaps a better idea would be to build solar plants on the earth
and then just keep the energy here. It is true that the sunlight on
the moon's surface can be more intense than on the earth's surface,
due to its lack of atmosphere, but this greater intensity does not
justify the R&D effort that would be required to pursue extra-
terrestrial capture of solar energy for use on earth. Furthermore
since most industrialized countries experience power losses of about
10% between the generating plant and the customer, which is only at
most in the hundreds of kilometers, there is no way the energy would
be still coursing through the transmission cables after the 384,400
kilometers it would have to travel from the moon to the earth. [43]
[44]