An SPS that would generate 1 megawatt in earth orbit would generate 10 gigawatts if placed in orbit around the sun at a distance of 0.01 AU. This is because of...
Hello,<br><br>Could anyone direct me to a list of serious companies persuing SPS? By serious I mean that they have at least 2 full time employees, and have ...
I believe Boeing has at least two employees working on this project, but that is no indicator of how serious they might be. I'm afraid that the sad state of ...
Hi there. Who do you think qualifies as SPS experts out there? Especially those active in the field today... I'd like to get names and e-mail addresses of ...
As a start you can check out the club's links and go from there. The Space Studies Institute has advocated solar power satellites since sometime in the 1970s...
Bill,<br><br>Many of the top SPS researchers and SPS proponents<br>have been invited to join this forum, so put up<br>some starter questions and maybe they...
Hello,<br><br>I've been doing some research regarding the wireless power transmission technology needed for a viable SPS. One of the big buggaboos appears to ...
I'm not sure how well I can help out, but I vaguely remember something about antenna aperature. The dish aperature, in degrees, is something like the ...
Thanks Bill!<br><br>Given that equation, I get a table that looks something like this... I'm keeping the spot size relatively constant, I understand that's ...
Another table of interest... In this case optimizing for spot size on the planet...<br><br>Freq (Ghz) Dish(m) Spot(km)<br>2.5 2200 4.33<br>5.4 1450 2.94<br>10...
Bill and Bill,<br><br>Glad you two are utilizing this forum for its<br>intended purpose - to bring SPS experts and<br>enthusiasts together to exchange ideas...
I may be off on this, but you may also have to optimize the set-up for the electronics involved. Also, the shorter the wavelength, the more precise your dish...
Actually it's a frequency of 2.45 GHz that gives the optimum balance between power transfer and safety levels for both human workers and small animals such as ...
Why not park it closer to the sun? For example if it orbited mercury, at 0.3871 AU from the sun, it would collect 6.6735-times as much solar radiation per unit...
Mark,<br><br>I concur. This technology is a logical solution to our nation's energy needs. Though it is not a total solution, it will help us become less ...
You are quite correct Mr. Lawson. Thank Robert MacNamara for that one. <br> The first thing that is needed for such a commercial venture is a economical launch...
Thanks for pointing out www.permanent.com . I use them as one of my moon mining references. As far as an SPS orbiting Mercury, IMHO I wouldn't make it my first...
Kav,<br><br>Thanks for contributing. I would like to disabuse<br>you of the notion that X-33 or VultureStar will<br>ever amount to anything but a moneypit for...
John:<br><br>Did you know the late Dr. William Brown, formerly of Raytheon? I know he was a major developer of microwave power transmission technology. He was...
FYI,<br><br>"Beam it Down, Scotty!<br>- Solar power collected in space and beamed to<br>Earth could be an environmentally friendly<br>solution to our planet's...
I have one question:<br> In computing the costs; is the materials launched from the Earth's surface, or is it processed lunar materials? I believe it would be...
Generally you would think that lunar materials would be cheaper. Still, if you're going to put the material into geosynchronous orbit, you'll need a launch ...
In reguards to your responce to my question I have a some points I would like to present:<br><br>1). In 1999, Hughes salvaged a communications <br> satellite...
Sounds good. I especially like the idea of the closed cycle gas generator instead of PV technology. And one can take advantage of the large shadow cast by the...
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