<div dir="ltr"><div dir="ltr">On Fri, Sep 4, 2020 at 11:53 AM Keith Henson via extropy-chat <<a href="mailto:extropy-chat@lists.extropy.org">extropy-chat@lists.extropy.org</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">That would make the cost of power a few dollars a kWh.<br></blockquote><div><br></div><div>For reliable, uninterruptible power at remote facilities that they don't need to refuel and only need to ship in a rectenna for (as opposed to a heavier generator)? Yeah, they'd pay that price.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I think the scale mismatch problem is so bad that it is not worth<br>
looking into. But if you are interested (and know how to do it) I am<br>
willing to check your Excel model if you want to create one. I think<br>
Seth Potter's 2009 paper has the math you would need.<br></blockquote><div><br></div><div>You know how to do it. That's why I'm asking you.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Such a power satellite would be very different from those considered<br>
in the past. To decrease the spot size on the ground by a factor of<br>
ten requires enlarging the transmitter in GEO by the same factor. So<br>
a 1 km transmitting antenna becomes 10 km, 100 times the area. The<br>
much lower power density would prevent thermal problems.<br></blockquote><div><br></div><div>Or, same size spot on the ground, and just use a much lower power density. They can claim land if needed.</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">If you think these numbers are acceptable to the military, and you<br>
want to sell them on the idea, I can introduce you to Paul Jaffe.<br></blockquote><div><br></div><div>No, the point is to get you or Paul to sell them on the idea. You (collectively) have the data necessary to do this sales job. I may have important pieces that you apparently do not, but I am not the one who can sell them on this. They want to talk to the experts directly, and that is you and Paul. </div></div></div>