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Power Science

Japan Eyes Solar Station In Space 247

An anonymous reader writes "By 2030 [Japan] wants to collect solar power in space and zap it down to Earth, using laser beams or microwaves. The government has just picked a group of companies and a team of researchers tasked with turning the ambitious, multi-billion-dollar dream of unlimited clean energy into reality in coming decades."
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Japan Eyes Solar Station In Space

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  • Threat? (Score:2, Funny)

    by Anonymous Coward

    Great , now we not only have to worry about stray godzilla attacks, now japan gets pew pew lasers

  • by TheKidWho ( 705796 ) on Monday November 09, 2009 @11:27AM (#30033252)

    Godzilla is made, all that microwave radiation frying the Lizard DNA...

    Don't tell Japan they had it coming to them!

  • by Maury Markowitz ( 452832 ) on Monday November 09, 2009 @11:27AM (#30033256) Homepage

    Not going to happen. No use writing why AGAIN, I think this reply to the original post is just fine:

    http://matter2energy.wordpress.com/2009/09/01/here-we-go-again-with-the-spss/

    • by TheKidWho ( 705796 ) on Monday November 09, 2009 @11:33AM (#30033348)

      Your argument is a bit silly and is ignoring the economy of scale.

      The majority of the cost in Rocket development is in personnel and support. The actual physical materials and fuel used aren't nearly as expensive. With a large investment into capital and mass manufacturing of rockets, cost can be driven down significantly.

      • by Maury Markowitz ( 452832 ) on Monday November 09, 2009 @11:52AM (#30033614) Homepage

        > Your argument is a bit silly and is ignoring the economy of scale.

        Ahhh yes, the economy of scale claim. People have been making that claim since the 1960s (Seahorse) but in spite of 40 years of new technology it still isn't true.

        You did read the linked articles right? You need a reduction in launch costs of over 100 times before it can think about breaking even. I _might_ be inclined to believe a 10 times reduction, but 100 times? Riiiight....

        And that's ignoring the space debris issue, the fact that most of this technology doesn't exist, that the rest has a 100% failure rate, and that you're economically better off leaving them on the ground anyway. That last one is vitally important. Space power gets you about 2x the power from the same panel on Earth, once you beam it down.

        That's it, that's the end of the argument right there. Build twice as many panels right here, and you get the same amount of power for 1/100th to 1/1000th the cost. It doesn't make a difference what panels you use or what technology, anything that changes the economics of the panels in space does the same for the panels on Earth. So I'll just buy 100 times as many and deliver 50 times the power. Why the heck would you put them in space? (if you're going to come back with "24 hours" or some other vapid argument, read the other articles first).

        I'm sorry, but I would disagree that the argument is "a bit silly".

        Maury

        • Re: (Score:3, Interesting)

          by h4rm0ny ( 722443 )

          You did read the linked articles right? You need a reduction in launch costs of over 100 times before it can think about breaking even. I _might_ be inclined to believe a 10 times reduction, but 100 times? Riiiight....

          Well true or false, you've got to admit its a better way of stimulating jobs and research with government money than giving it straight to failing banks, right. ;)

          • Not if those banks are failing, and will continue to fail, because they did put all the money in your research projects. ^^

            Think around the next corner, people! If someone has less money, another one has more!
            Just find out, who has loads and loads of money now?? Then find out what he wants, or thinks he wants. (Thoughts can be changed! :)
            And then, sell him as much of that as possible in the most huge addictive shopping frenzy of all time! ^^

            • Re: (Score:3, Funny)

              by h4rm0ny ( 722443 )

              Just find out, who has loads and loads of money now??

              Bankers.

              Then find out what he wants, or thinks he wants.

              The rest of our money.

        • by ByOhTek ( 1181381 ) on Monday November 09, 2009 @12:23PM (#30034076) Journal

          I'm wondering - does this take into account land costs of ground based solar cells, particularly in Japan?

          • > does this take into account land costs of ground based solar cells

            Ummm, you realize you need a ground footprint just about the same size for the rectenna, right? And unlike a rectenna, you can build solar panels in settled areas, like rooftops, car parks, etc. The land footprint of ground-based solar is FAR less expensive than the same power beamed from space.

            Maury

        • Re: (Score:2, Insightful)

          by RemyBR ( 1158435 )
          If you lived in a country where every square meter of real estate is extremely expensive, as is the case for Japan, you would understand that using 100 times more panels is not really an option.
          • To be fair, you have to remember that unlike other power-generation technologies, solar has the advantage that you can just slap solar panels on any rooftop, providing power right at the point-of-use. However, the problem with this is that, to be economically feasible, you need to be in a location where you get plenty of sunlight on your rooftop. Here in Phoenix, Arizona, that's a given, and it's shameful that we don't exploit this advantage more in this city. In Japan, it's not like that. Given their h

        • by Bakkster ( 1529253 ) <Bakkster.man@NOspam.gmail.com> on Monday November 09, 2009 @12:39PM (#30034316)

          And that's ignoring the space debris issue, the fact that most of this technology doesn't exist, that the rest has a 100% failure rate, and that you're economically better off leaving them on the ground anyway. That last one is vitally important. Space power gets you about 2x the power from the same panel on Earth, once you beam it down.

          That's it, that's the end of the argument right there. Build twice as many panels right here, and you get the same amount of power for 1/100th to 1/1000th the cost. It doesn't make a difference what panels you use or what technology, anything that changes the economics of the panels in space does the same for the panels on Earth. So I'll just buy 100 times as many and deliver 50 times the power. Why the heck would you put them in space? (if you're going to come back with "24 hours" or some other vapid argument, read the other articles first).

          Of course, you assume that there is somewhere reasonable to place the panels to maximise their effect. Sure, you don't need SPS in Arizona where it's sunny 85% of the time, but at higher latitudes with greater cloud cover the available solar power is reduced. So, someplace like Japan has different economics, where they might require 4-10x (or more) the panels on earth. Don't forget that Japan has very little available land. Doubling or quadrupling the required footprint of a power plant is not to be taken lightly.

          I guarantee the first system will not break even. The second probably won't either. But it's certainly conceivable that it will at some point in the future. Better to start now and learn to make it effective if/when that happens. It's not a silver bullet, but it's still worth a shot.

          • Re: (Score:2, Insightful)

            by jack2000 ( 1178961 )
            Your greatest enemy is your friend here. So make your energy problems go away with wave and wind power generators! Dole out the sun panels for when it's quiet and calm.
            • Re: (Score:2, Insightful)

              by Prune ( 557140 )
              Wind energy is simply too low density (as is solar) to fully satisfy the world's growing energy needs over even the next couple of centuries. And you're forgetting that most of the world's population is in developing and undeveloped nations whose energy demand will grow 10x per capita as they become fully industrialized. Wind and solar are toy projects pushed by rabid environmentalists' infectious propaganda; they very much realize how adoption of these power sources will force severe limits on human prog
              • by Grishnakh ( 216268 ) on Monday November 09, 2009 @02:36PM (#30036148)

                Wind and solar are toy projects pushed by rabid environmentalists' infectious propaganda; they very much realize how adoption of these power sources will force severe limits on human progress by suppressing energy availability.

                There's no limits on human progress by using solar instead of dirty technologies like coal. However, no matter what technologies we use for generating power, there are limits on human population because of resources. Humans need to stop breeding like rabbits.

                And I've no doubt that's exactly what they want--less technology, back to nature Ludditism and, especially, enabling a socialist reworking of human civilization.

                No, we need more technology, cleaner technology, technology which lets us live better with nature (so we can still have nice places to go camping on vacations, and nice fish and seafood to eat that aren't filled with mercury and PCBs), and we need fewer humans with higher standards of living so we can enjoy our resources and manage them better, instead of fighting over them and squandering and polluting them. We also need fewer people so we can avoid more extreme forms of socialism. The only way to manage larger and larger populations of people will be socialism, and in particular the more nasty kinds that impose all kinds of limits on our freedoms. You can't have many freedoms when we're all packed together in ultra high-density housing; we'll have to have stricter rules and more government to keep us from killing each other, or keeping some nutcase from committing mass-murder. You want less government interference and more freedom? Work for a smaller population. Stop having so many babies.

              • Re: (Score:2, Informative)

                And I've no doubt that's exactly what they want--less technology, back to nature Ludditism and, especially, enabling a socialist reworking of human civilization.

                God you americans are full of shit most of the time, WTF does energy production and technology have to do with capitalism and socialism? Oh right Socialists countries like France have 74.5% nuclear power (the rest is renewable)! If anything true socialism and even communism are more likely to succeed if there is better tech, if it makes manual jobs redundant the excessive labour that made life in the USSR hard would not be needed.

              • I'm not gonna repeat all the arguments of nuclear vs. renewable power http://en.wikipedia.org/wiki/Nuclear_power_debate [wikipedia.org]
                But basically, with nuclear power you end up having the same problem as with oil (Uranium is limited), except you have huge safety issues (see recent events in France) and unsolved issues with radioactive waste.
                Nuclear power can be a short-time tool to get to sustainable long-term technologies. But it is neither clean nor a silver bullet, and we mustn't stop there.

          • by init100 ( 915886 )

            Sure, you don't need SPS in Arizona where it's sunny 85% of the time

            Oh? What about at night? A solar power station in geostationary orbit will be unaffected by the day/night cycle for most of the year, since the orbit is high enough to seldom pass through the Earth's shadow. The only times this will happen is when the Earth is close to one of the two equinoxes. But even then the "night" will be much shorter than on the ground.

            • > Oh? What about at night?

              We have all the night-time power we need already, it's peaking demand that's the problem and there's nothing better suited to meeting that than distributed PV. Worse, base load sells for nothing, so you're killing your payback.

              Maury

          • > but at higher latitudes

            Do you mean like here in Toronto? We get 1950 hours of bright direct sunlight a year. When you do the math (the subject of my first post on the topic) you'll get about a 20% difference.

            > might require 4-10x (or more) the panels on earth

            So? We're not talking about a lot of land. You can power the entire USA with solar panels taking up 1/2 the area that's been paved. We've done this before.

            > Don't forget that Japan has very little available land

            Don't forget that in addition t

            • > but at higher latitudes

              Do you mean like here in Toronto? We get 1950 hours of bright direct sunlight a year. When you do the math (the subject of my first post on the topic) you'll get about a 20% difference.

              That time of sunlight needs to be multiplied by the solar flux to determine the total energy available per year. The solar flux (W/m^2) in space is about 1,366 W/m^2. After passing through the atmoshpere at the equator, it's about half that. As your latitude increases, the light passes through more atmosphere at a sharper angle, meaning that even bright noon sunlight in Toronto has even less power than in Arizona, let alone the equator.

              Once you correct for daylight hours and cloud cover (and, the streng

        • by realityimpaired ( 1668397 ) on Monday November 09, 2009 @12:47PM (#30034458)

          Space power gets you about 2x the power from the same panel on Earth, once you beam it down.

          That's it, that's the end of the argument right there. Build twice as many panels right here, and you get the same amount of power for 1/100th to 1/1000th the cost. It doesn't make a difference what panels you use or what technology, anything that changes the economics of the panels in space does the same for the panels on Earth. So I'll just buy 100 times as many and deliver 50 times the power. Why the heck would you put them in space? (if you're going to come back with "24 hours" or some other vapid argument, read the other articles first).

          Space power also doesn't suffer from cloudy weather (if the beam you're using to send it to the ground is in the right frequency range), can operate at night (if the sattelite is high enough to avoid being in the shadow of the Earth), and doesn't take up acres of space on the ground. It may not necessarily be economical right now, but as the world's population approaches 10 billion or more, and as we run out of space to build the things (and start needing what little space we have for things like farms instead of solar plants), alternatives that use up less space are going to become more attractive.

          Plus, you're overlooking one very very important point... the rockets they can use to launch solar arrays into space are not purpose built. That is to say, they can be used for things other than launching solar arrays into space. The space agency is going to spend the money building/developping them anyway, because they're still useful for launching communication/navigation sattelites, and because the technology can be adapted to manned space flight. The bulk of the cost of a launch comes from the development and testing process, and that's money that's going to be spent anyway. And as new players enter the market, the cost of launching a sattelite is going down significantly... the ISRO in India, for example, charges about half what it costs the Americans to launch a sattelite.

          • > Space power also doesn't suffer from cloudy weather

            If you read the linked posts you'll note that I took all of that into account. If you take night, weather, low angles, color, you name it, you'll get about 2 times as much power from an SPS as the same panel on Earth over its lifetime.

            > little space we have for things like farms instead of solar plants

            You have seen a rectenna, right? Are you sure you want to put YOUR crops under a microwave oven?

            > That is to say, they can be used for things other

        • This can't be right, surely. In space you are guaranteed 24/7/365 of sun.

          • And actually, just to reply to myself, it's much more usable power as you know when you are going to be receiving it (all of the time). One of the problems with solar is that you aren't guaranteed it, and have to deal with aspects like trying to store it for when it's cloudy. From space it can be used as 'baseload' power as you can be sure that it will always be available.

        • Re: (Score:3, Insightful)

          by canajin56 ( 660655 )
          Well, I read your link you titled "read it and weep". It disagrees with everything you say, so I'm not sure I read the parts of it you were hoping to? First, it says that both NASA and the ESA think that a 50-100x decrease in costs is possible in the near future. Further, it estimates that only 12x is needed for a solar sat to be economically sound when compared with a conventional, terrestrial power plant, a cost decrease about the same as what you admit may be possible, and far less than both NASA and
        • Why the heck would you put them in space?

          How much surface area does Japan have available to place these solar panels? Wikipedia says [wikipedia.org] it's 145,883 sq mi (smaller than 4 states in the US) and that "About 70% to 80% of the country is forested, mountainous, and unsuitable for agricultural, industrial, or residential use." There's also the fact that Japan is part of the Ring of Fire [wikipedia.org]. I'm not sure of the wisdom in setting up lots of (relatively speaking) fragile solar panels in an area prone to earthquakes.

        • That's it, that's the end of the argument right there. Build twice as many panels right here, and you get the same amount of power for 1/100th to 1/1000th the cost. It doesn't make a difference what panels you use or what technology, anything that changes the economics of the panels in space does the same for the panels on Earth. So I'll just buy 100 times as many and deliver 50 times the power. Why the heck would you put them in space?

          We're talking about Japan here, not Egypt or Arizona. Where exactly do

        • by nasor ( 690345 )

          Ahhh yes, the economy of scale claim. People have been making that claim since the 1960s (Seahorse) but in spite of 40 years of new technology it still isn't true.

          It doesn't really have anything to do with new technology. It never came true because no one has yet attempted to launch large amounts of stuff into space. We will never have economies of scale in the space launch industry so long as we launch only a tiny amount of stuff into space, and we'll never launch more than a tiny amount of stuff into space so long as every time someone thinks about launching a large amount of stuff, they look at the cost in terms of today's small-scale cost/kg and conclude it's not

    • Re: (Score:2, Insightful)

      by Anonymous Coward

      Not going to happen. No use writing why AGAIN, I think this reply to the original post is just fine

      I like a well laid out argument as anyone, but people have historically been very poor at guessing what will work and what not via dry analysis. Indeed, according to our knowledge, most of the technology and achievements we have today would never work.

      In business there's a saying: "Never mind how well you plan, your plan will never work out. But never start without a plan". This is why it is good that some people take on a project by leap of faith, or take a risk, if you will. You never know when a small

    • Re: (Score:3, Interesting)

      by drinkypoo ( 153816 )

      I find your reply inadequate. It assumes that no solution will be found to the problem of space debris, which is probably false; if commercialization of space is intended to proceed apace (And where else will the robber barons rob next? We're running out of stuff that's easy to rip out of the planet) this is a problem which will need to be addressed. It also assumes that launch costs will remain fixed, which is also probably false. It also assumes that these satellites will be as vulnerable to impact as cur

    • Re: (Score:3, Insightful)

      by asylumx ( 881307 )
      Random bloggers > japanese national space agency...
    • Re: (Score:3, Interesting)

      by vrmlguy ( 120854 )

      Not going to happen. No use writing why AGAIN, I think this reply to the original post is just fine:

      http://matter2energy.wordpress.com/2009/09/01/here-we-go-again-with-the-spss/

      You don't seem to realize that there's more than one way to launch a payload. Here's a /. article from 2006, for instance, that discusses ballistic launches: http://science.slashdot.org/article.pl?sid=06/10/03/1732258 [slashdot.org].

      The gist is, if you can pack things to withstand 2,000 Gs of acceleration, you can launch an object into orbit using just electricity. Once the cargo reaches apogee, you need to adjust the orbit to one that won't re-intercept the atmosphere, but that only take a small solid fuel thruster. H

    • by mcrbids ( 148650 )

      Not going to happen. No use writing why AGAIN, I think this reply to the original post is just fine:

      Plug your ears, dude, and say "LA LA LA LA LA" really loudly while I finish my post!

      They said it was infeasible to have an automated car. They were wrong.
      They said that flying wasn't going to happen. they were wrong.
      They said that "heavier than air" flying wasn't going to happen. They were wrong.
      They said that breaking the sound barrier wasn't going to happen. They were wrong.
      They said that going into space was ludicrous! hey were wrong.
      Going to the moon was infeasible. They were wrong.
      Free, global commu

  • by eldavojohn ( 898314 ) * <eldavojohn@noSpAM.gmail.com> on Monday November 09, 2009 @11:31AM (#30033306) Journal
    Japan's just preparing for the near future [smbc-comics.com].
  • by courteaudotbiz ( 1191083 ) on Monday November 09, 2009 @11:32AM (#30033334) Homepage
    ...ever since I played SimCity 2000... But I don't want the beam pointing toward my head when I am not wearing my tinfoil hat!
  • Comment removed based on user account deletion
  • Old news (Score:3, Interesting)

    by commodore64_love ( 1445365 ) on Monday November 09, 2009 @11:41AM (#30033472) Journal

    I read this... uh two weeks ago? All the same things we said back then still apply (you'll lose ~99% of your power over the 20,000 mile beaming distance), et cetera, et cetera. Highly inefficient.

    Now maybe if they converted the solar to hydrogen first, and then used that to fuel spaceships to colonize Mars and other planets, it might make sense.

    (shrug). Whatever. I think mankind is about to experience a major energy drought. The last two centuries were built-upon the solar power captured over 100 million years (by evergreens). Now it's almost all gone. We won't die-out of course, but life in the 2100s might look a lot like life in the 1700s (cold homes, very little travel, and dark nights).

    • Re: (Score:2, Funny)

      maybe if they converted the solar to hydrogen first

      How might they do this?

    • Re: (Score:3, Interesting)

      by TooMuchToDo ( 882796 )
      You are aware that enough energy falls on the Earth in the form of sunlight in 1 hour to power all the energy needs of the Earth for 1 year, correct? It's just a matter of harnessing all that power.
      • Re: (Score:2, Interesting)

        You are aware that there's enough energy in a single gallon of crude oil to power an entire American home for 1 year, right? It's just a matter of harnessing all that power.

        Point-

        It isn't that easy. The inefficiencies inherent in converting one form of energy to another leads to waste. Solar panels are lucky to get even 1% of the solar energy converted top electricity. They also take-up a lot of room... which is already occupied by homes, roads, trees, et cetera.

        I can live pretty cheaply (trees for shad

        • I can live pretty cheaply (trees for shade in the summer; minimal heating in the winter), but I know most Americans would not be willing to make that sacrifice.

          When the oil is gone, it's gone. Whether someone is willing to make that sacrifice when the physical system forces them to (you can't reason with the universe). Be efficient or deal with the consequences.

        • Re: (Score:3, Insightful)

          That's a silly argument. There's even more energy in a single gallon of DIRT. The trick is in getting at it.
    • Re: (Score:2, Insightful)

      Which is why you should start investing in nuclear now, we might not be able to scale up solar fast enough in 20 years to meet the drought, but we can scale up nuclear energy that fast. Nuclear may also not last forever, but if we could get to 50/50 split nuclear/solar, we'd be in good shape.
    • Re: (Score:3, Insightful)

      by FooAtWFU ( 699187 )
      If it comes to that, we have nukes. By the 2100s, we might even have fusion power too (I'd hold out for 2200s for that, though, myself). Heck, even coating the landscape with solar panels and windmills is cost-effective if the alternative is "cold homes, very little travel, and dark nights".

      And really, even some of the "dark nights" are being solved in Africa through simple hand-cranked LED lanterns. Light has gotten incredibly cheap.

      • Well, the "very little travel" and "dark nights" don't sound to bad, really. "Very little travel" could also mean "live someplace I actually want to spend my time", and "dark nights" could also mean "get plenty of sleep for a change" or "appreciate moonlight and starlight again". Humans managed reasonably well with both of those restrictions for thousands of years.

        Even the "cold homes" part is a problem that can be mitigated. In Germany in particular, new housing is getting designed to avoid losing heat unl

    • Re:Old news (Score:5, Informative)

      by MobyDisk ( 75490 ) on Monday November 09, 2009 @12:52PM (#30034540) Homepage

      Losing 99% of the power? Why? You can beam the power down using wavelengths that are not absorbed by the atmosphere.

    • I'm usually not a defender of SBSP (except potentially for forward military bases), for various feasibility and economic viability reasons, but I'm curious where you get your 99% power loss figure.

      Power is intended to be returned to earth as either lasers or narrowly focused microwave beams. Obviously if you're just taking a basic r^2 power loss equation you'd lose an absurd amount, but no one is going to do that -- throw in the gain from a large microwave antenna and it gets much saner. Lasers are going t

  • (using the American notation of 1 Trillion = 1,000 Billion). Anyway, they are putting the cart before the horse so to speak. They should really put their effort behind:

    1) making long carbon nano-tubes on an industrial scale to build a space elevator. I read somewhere that with such "unobtanium" it would (only) cost 5 Billion to build an initial elevator from which supposedly they could expand.

    2) support deep space exploration with the goal of eventually mining asteroids. To build a really decent sized e

  • The Japanese are wasting no time in implementing orbital elevators from Gundam 00.
    The Agriculture Ministry is not in charge of Gundam.
    Not yet.
    • by EdZ ( 755139 )
      I'm waiting for the Agricultural Ministry to suggest microgravity hydroponics as a solution to Japan's reliance on foreign food imports.
  • by Paul Fernhout ( 109597 ) on Monday November 09, 2009 @12:00PM (#30033720) Homepage

    From: "[ExI] Thoughts on Space based solar power"
    http://lists.extropy.org/pipermail/extropy-chat/2008-November/046620.html [extropy.org]
    """
    I spent a long time around 2003 and 2004 on the SSI email list (now on yahoo
    groups if you want to look at the archives) explaining why space-based solar
    power will not in any likely time frame be of any value on Earth. :-)
    http://tech.groups.yahoo.com/group/ssi_list/ [yahoo.com]
    And I want to make it clear I was a SSI Senior Associate (five year pledge
    of money) back in the 1980s, and even took a (intro Physics) course from
    Gerry O'Neill. So this in not just a casual disagreement. I am very sad that
    the Space Studies Institute even now pushes an outdated agenda (well, now
    they are moving to scaring people with asteroids, to the extent they are
    still operating). I feel if Gerry O'Neill was around now he might agree with
    this analysis of the current prospects for space-based power in the next few
    decades, since he always was an adaptable and innovative guy, even if,
    unfortunately, ultimately an unsuccessful businessperson with GeoStar and
    LAWN with which he hoped to fund space habitation. I think by coupling the
    two -- a desire to build space habitations coupled with economic arguments
    for space solar power (or even other space activities) -- that one may miss
    out on sooner realizing the dream of space habitation done for its own sake
    (as a hobby).

    The core points of the argument I advanced there:

    * About a third to one half the cost of residential electric service is
    maintaining transmission lines. So, at best, space solar even if *free* at
    the ground station will be at best one-third the cost of utility power is
    now at the home meter. As the costs of home power generation fall from
    advanced manufacturing, the cost of home solar power (or wind, or
    cogeneration) will drop below that cost at some point for self-contained
    homes producing all or most of their own power, making space solar power
    obsolete for home use. Since space solar power will initially be expensive,
    it is non-viable right now. And since the cost of solar panels (like
    Nanosolar's) is dropping way faster than the cost of space operations, and
    since solar space satellites have a twenty to thirty year time horizon for
    significant production, they are a non-starter and too risky investment
    comparatively. Things might have been different in the 1970s, but it is
    thirty years later. Also, one can make an argument for limited solar power
    for large commercial facilities producing aluminum or liquid fuels or doing
    laser launching, but that is only likely to be worth doing once we already
    have a space presence since then only the incremental costs will need to be
    paid, rather than expect solar power to pay to develop a space
    infrastructure as O'Neill and others proposed (and people still propose).
    I'm sure one can look hard at situations where transmission costs are
    minimized, but this cost of transmission argument is a very deep one and
    I've never seen it rigorously discussed. We know how to do solar on the
    ground, there are ways to store the energy at night (molten salts, ever
    improving batteries, pumping water up hill, compressed air, production of
    synthetic liquid fuels, production of hydrogen, a superconducting world wide
    grid backbone, etc.), and there are complementary technologies like wind
    power and cogeneration by burning biomass that together with solar produce
    fairly reliable power (as well as a lot of local hands-on jobs in the short
    term). And there are organizations promoting R&D to make this all even better:
    http://www.google.com/corporate/green/energy/ [google.com]

    * A rebuttal to this is

    • I guess we missed microwave power by 10 years though, so maybe my calculation is off.
    • The funny thing is that for the last 50 years, I kept hearing that it was off by 10 years. Now, that the whole planet is involved, it will take 40 years. What do you think is the chance that it will not work?

      My bet is that it will be some other means of doing it.
      • The funny thing is that for the last 50 years, I kept hearing that it was off by 10 years. Now, that the whole planet is involved, it will take 40 years. What do you think is the chance that it will not work?

        My bet is that it will be some other means of doing it.

        Whoosh. Grandparent is a reference to SimCity 2000, which a) let you build power plants like those of the OP, and b) unlocked fusion power in every game in the year 2050.

  • by PolygamousRanchKid ( 1290638 ) on Monday November 09, 2009 @12:07PM (#30033810)

    . . . meanwhile, some space experts have questioned Japan's plans for a shark crew.

    A NASA spokesman commented, "I'm just not exactly sure, but something seems not quite right with a laser satellite to be crewed by sharks."

    A Japan space agency spokesman countered, "Sharks don't sleep, so we will be sure that they are always paying attention to the sensitive instruments, 24/7. And they don't get cancer, because of some mysterious substance in their cartilage. Sharks have survived for millions of years in the oceans of the Earth. Outer space is the next logical challenge for them."

  • by WindBourne ( 631190 ) on Monday November 09, 2009 @12:19PM (#30034006) Journal
    If we remain in Afghanistan to stop AQ, then getting supplies into there is hard. A big part of this is fuel for electric power. This is the ideal situation for a small 10-50 MW space generator to beam it into bases, esp. forward bases. We can cut the power to the base, if it is taken. In addition, it prevents fuel from being used as a weapon. We could easily have a small version available within 2 years.

    In addition, this same idea could be used in the US and other locations to beam 10 MWs into disaster locations. The ability to bring in say 1 MW into multiple locations within 1 hour would make a HUGE difference in say hurricane, earthquake, or even another 9/11.
    • It wouldn't really help that much in disaster areas. You still need to get the collector trucked in, land cleared, collector setup and connected to a load like a hospital, shelter, local grid, etc. You could just as easily bring in a diesel generator on a truck, or for that matter, a small self contained nuclear power plant ('tis possible), if you could get the truck(s) into the disaster area in the first place.
      • Depending on the bandwidth, approaches, distance, etc, the collectors can be small. If distance is the real issues, then build a specialized UAVs that has a large collector that can then send it to multiple points, in a different means.
      • I think it depends on how easy it is to ship diesel fuel to the disaster zone. If moving things in and out is a nightmare, then a collector truck of similar size to a large truck with a generator may be a better solution, simply because you only have to get it in there once.

        The main advantage for a military base is that you severely reduce the logistical needs (and potentially cost, but thats secondary). Hauling in truck after truck of diesel fuel through either a war zone or a disaster zone has a lot of

        • Absolutely. I was merely speaking to a civilian disaster scenario where military resources are not the front line support. Military requirements (and capabilities) are very different.
    • Space relay for power distribution makes a lot of sense for military/emergency purposes, but not generation. Why generate the power in space, when it can just be beamed up from a ground-station? We can extract useful energy far more easily at microwave frequencies than at visible light frequencies.
  • by Hurricane78 ( 562437 ) <deleted&slashdot,org> on Monday November 09, 2009 @01:47PM (#30035358)

    Version A)
    The microwaves are going to ionize the atmosphere.
    Breaking down earth's magnetic shielding from the solar wind.
    And then igniting the entire atmosphere.

    Unless you give me... ONE...MILLION...DOLLARS!!! MUHAHAHAHAAAAA...

    Version B)
    Our power needs will go up so far, that we will fill the whole area around the sun with solar panels, and live on top of them.
    Thereby making us invisible for any aliens.
    So we grow, and become more and more evil and power-hungry.
    Until we set out, to harvest other suns.
    And the aliens on other planets see sun after sun... vanish from the sky.

    "Prepare for an epic billion-year long battle!
    In a 40-hour movie, that will burst even LOTR's time frame!
    Now in cinemas!"

    P.S.: On a more serious note: What effect does this have on the atmosphere? I'd guess somewhat the same as in a microwave: Ionization and heating. The heating won't change much, I guess, when compared to the global warming of fossil fuel power plants. But the ionization certainly has a effect. What are the long-term results of those effects?
    And how big of a focus point on the surface are we talking about? I don't want to be at the spot where it hits when it's mis-calibrated...
    If those questions are answered, it's a pretty good plan in my eyes. I always wondered why we erect power plants, when nature already gave us the biggest fuckin' fusion reactor one can think of! ^^
    (Yes there are bigger stars. But try imagining them! :P)

  • These space platforms are going to require a lot of power, so are they going to have some kind of nuclear plant to supply the necessary power? Whatever they use, it had better be green, such as wind or water power. Maybe they could run it on methane from cows.

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