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Japan Plans $21B Space Power Plant

Mike writes "Japan has announced plans to send a $21 billion solar power generator into space that will be capable of producing one gigawatt of energy, or enough to power 294,000 homes. The project recently received support from Mitsubishi Electric Corp. and IHI Corp, who are now teaming up in the race to develop new technology within four years that can beam electricity back to Earth without the use of cables. Japan hopes to test a small solar satellite decked out with solar panels by the year 2015."

88 of 550 comments (clear)

  1. Didn't Japan just come out ... by neonprimetime · · Score: 2, Interesting

    ... of a recession in June? They must be high on life now ... spend spend away!

    1. Re:Didn't Japan just come out ... by nickdwaters · · Score: 2, Insightful

      Recession means "lack" of spending behavior, not "lack" of money. Often spending on promising technologies has important spin-off applications which bolster the economy / people spend money.

    2. Re:Didn't Japan just come out ... by CorporateSuit · · Score: 4, Interesting

      Recession means "lack" of spending behavior, not "lack" of money. Often spending on promising technologies has important spin-off applications which bolster the economy / people spend money.

      That seems to be the exact opposite problem of what we have in America. We thought we had way more money that we even thought we had. When the magicians disappeared, all the make-believe money that was coursing through the veins of the economy dried up and caused the businesses who were relying on people spending that make-believe money to burn out and fail. It was the lack of money that caused the lack of spending, not the lack of things to buy.

      --
      I am the richest astronaut ever to win the superbowl.
    3. Re:Didn't Japan just come out ... by benjamindees · · Score: 5, Insightful

      How is it that Keynesians continue to absolutely fail to understand basic cause and effect and the free market? "Lack of spending behavior" is neither the definition or cause of the recession. It is the result of the lack of productive return over the last several years due to terrible investments. Recession is defined as negative GDP growth, or lack of improvement in production, not lack of spending.

      In this case, it's a terrible sign that the Japanese are so fed up with investing in the US that they now see hurling money into space as a better alternative.

      --
      "I assumed blithely that there were no elves out there in the darkness"
    4. Re:Didn't Japan just come out ... by DragonWriter · · Score: 3, Informative

      Recession means "lack" of spending behavior, not "lack" of money.

      No, actually, it doesn't mean either. It means an overall decline in economic activity across many dimensions taken together, the nearest thing to a single-dimensional rough definition is a decline in production rather than spending. A decline in spending usually occurs during a recession, but its not the same thing as a recession.

    5. Re:Didn't Japan just come out ... by iluvcapra · · Score: 5, Insightful

      In this case, it's a terrible sign that the Japanese are so fed up with investing in the US that they now see hurling money into space as a better alternative.

      Yeah but if it works, it'll generate income, there is a risk/reward here, unlike the Keynes "bury money in a mine" scenario.

      I could make a smartass remark here about how the US government decided to bury millions of dollars in cable underground in the 1960s, connecting universities and research institutions with an inefficient government boondoggle...

      --
      Don't blame me, I voted for Baltar.
    6. Re:Didn't Japan just come out ... by Tanktalus · · Score: 2, Interesting

      Because once you've done it once, doing it a second time ought to be much cheaper. And once you've worked out the kinks in a "small-scale" project, it's easier to ramp up to bigger projects in the future.

      Think of this as costing about $1,428.57 per home, plus about a $20.6B investment in future technologies that the whole world will benefit from, assuming it works.

    7. Re:Didn't Japan just come out ... by commodore64_love · · Score: 2, Insightful

      It's not that difficult:

      - We had a housing bubble where homes were overvalued at, say, $300,000 but their true value was only $200,000
      - When the market corrected itself, and these home prices dropped to their true value, it started a chain of events
      - Those businesses with stocks or mutual funds in these homes lost money, bankruptcies spread, and recession happened.

      The only good news is that, unlike the crash of 1929, our recession started in 2007 and was a gradual falling-off, so we didn't have a panic. Not the question becomes - what caused the housing bubble? The answer is too easily-available credit was extended to people who should have not received mortgage loans.

      --
      "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
    8. Re:Didn't Japan just come out ... by Bakkster · · Score: 4, Informative

      Recession means "lack" of spending behavior, not "lack" of money. Often spending on promising technologies has important spin-off applications which bolster the economy / people spend money.

      That seems to be the exact opposite problem of what we have in America. We thought we had way more money that we even thought we had. When the magicians disappeared, all the make-believe money that was coursing through the veins of the economy dried up and caused the businesses who were relying on people spending that make-believe money to burn out and fail. It was the lack of money that caused the lack of spending, not the lack of things to buy.

      Nope, it's exactly the problem. The economy was cruising right along while people were (over) spending. The entire reason that the auto industry is in tough times is because people have been reducing their spending and putting off their car purchases. The economy was just fine when we were spending money, the problem was the money was from credit based on overvalued assets (such as houses).

      This also explains why it takes time to get out of a recession. People need to spend money for companies to have the income to hire more employees, who can then buy other more stuff.

      --
      Write your representatives! Repeal the 2nd Law of Thermodynamics!
    9. Re:Didn't Japan just come out ... by vertinox · · Score: 4, Insightful

      When the magicians disappeared, all the make-believe money that was coursing through the veins of the economy dried up and caused the businesses who were relying on people spending that make-believe money to burn out and fail.

      Money and wealth are arbitrary values of measurement set by society, businesses, government, or between individuals as it is.

      If you are trapped on an desert island with a suitcase full of gold, it won't seem that valuable compared to your neighbors crate of canned foods, or the guy with the can opener.

      That said, the gap between utility and wealth often becomes over extended and bubbles will happen.

      Just because society thinks something is valuable often does not increase its utility and the lack of value sometimes does not actually decrease utility of the commodity.

      Although, if you have organizations like the IRS, world's largest prison system, and nuclear weapons you can make your money valuable by simple force of will.

      Think about that next time you pay taxes or buy gas.

      --
      "I am the king of the Romans, and am superior to rules of grammar!"
      -Sigismund, Holy Roman Emperor (1368-1437)
    10. Re:Didn't Japan just come out ... by lgw · · Score: 2, Interesting

      Perhaps they value the look of their current roofs?

      PG&E is trying to do the same thing in California, BTW, it itsn't so much a Janapese thing as an expensive real estate/NIMBY thing. The NIMBY problem is so bad here that, even with rolling blackouts in the summer, the only place PG&E can build a new power plant is in space. And even then no one will accept the small receiving station in their neighborhood. Man I wish I could move back to Texas.

      --
      Socialism: a lie told by totalitarians and believed by fools.
    11. Re:Didn't Japan just come out ... by Grishnakh · · Score: 4, Interesting

      Rather than spend $71,000 per home to buy some spacetoy, they could just spend $10,000 per home and put the solar panels directly on the roof.

      Japan isn't exactly the sunniest place in the world, so solar panels on the rooftops aren't going to provide enough power.

      However, if they succeed in developing space-based power, not only can they provide power to themselves, they can build more stations and sell power to other countries too. That could be very profitable. All they have to do is make it cheaper than nuclear power, and lots of places would sign up. If they make it cheaper than coal, then Japan would control a large portion of worldwide energy.

      Meanwhile, what exactly is the USA investing in to secure its citizens a place in the future global economy? Real estate loans?

    12. Re:Didn't Japan just come out ... by tverbeek · · Score: 2, Insightful

      All money is "make-believe money".
      I'm not a retrograde gold-standard-er, but I think it's importatnt to understand that "wealth" in the modern global economy exists only as an abstraction, and can vanish just by people losing faith in it.

      --
      http://alternatives.rzero.com/
    13. Re:Didn't Japan just come out ... by Darkness404 · · Score: 3, Informative

      And then you had a media who acted like it was the end of the world and caused some people to stop paying their mortgage. Seriously. I have a friend who is a banker and said that after all the media stories people who were never late on a payment just stopped paying. When they called them to ask why they haven't made a payment they responded by saying "Well my house is going to be foreclosed anyways..." they were shocked to learn that if they paid their loans like they have been paying they could continue living normally.

      --
      Taxation is legalized theft, no more, no less.
    14. Re:Didn't Japan just come out ... by NotBornYesterday · · Score: 2, Interesting

      Not the question becomes - what caused the housing bubble? The answer is too easily-available credit was extended to people who should have not received mortgage loans.

      Yes, but not completely. Prolonged, artificially low interest rates meant that buying power was increased. This led to high demand, and higher prices. If I can afford $2000 / month mortgage, and the mortgage that $2k will buy at 7% is, say, $220,000 or so, but at 5% will cover a mortgage of $300,000 or so (forgive the approximate math, I'm not about to drag out a financial calculator), it's no wonder that prices floated higher than they rationally should have. Add to that the irrational behavior buyers indulged in such as bidding wars for properties, and you have a perfect storm of property value inflation.

      --
      I prefer rogues to imbeciles because they sometimes take a rest.
    15. Re:Didn't Japan just come out ... by sorin25 · · Score: 4, Funny

      If you are trapped on an desert island with a suitcase full of gold, it won't seem that valuable compared to your neighbors crate of canned foods, or the guy with the can opener.

      Actually, gold bricks can do more damage at impact than canned foods ...

    16. Re:Didn't Japan just come out ... by Anonymous Coward · · Score: 2, Informative

      Yes, we have those around here as well, we call them "retarded". We usually don't give them loans, though.

    17. Re:Didn't Japan just come out ... by SETIGuy · · Score: 2, Insightful

      It was the lack of money that caused the lack of spending, not the lack of things to buy.

      The lack of money is just as imaginary as the abundance of money that preceded it.

      No. I don't know if I'm being funny or not. Why do you ask?

    18. Re:Didn't Japan just come out ... by benjamindees · · Score: 2, Informative

      Right... so what might cause an economy to stop producing as much stuff? Might it be... people aren't buying the stuff that gets made? That seems like a pretty basic cause-and-effect relationship to me.

      It is a cause-and-effect relationship, it's just a completely unimportant one. The important thing is not that people aren't buying enough stuff, it's that the stuff being produced sucks ass.

      The Keynesian response is to rob from people who aren't buying enough of the stuff that sucks ass, and give it to the people who do buy the stuff that sucks (and who are not getting enough benefit out of it in order to afford to buy more), in order to prop up the crappy producers who are wasting resources building stuff that sucks.

      The correct, most economical, and most beneficial solution is to stop producing stuff that sucks ass, let the people who produce that stuff go bankrupt so that they will learn never to produce stuff that sucks again, and allocate their capital to producers who will create stuff that doesn't suck and that people with money will buy.

      I'll respond to the rest in a few mins.

      --
      "I assumed blithely that there were no elves out there in the darkness"
  2. Robots by Abreu · · Score: 2, Funny

    I suggest using intelligent robots to manage the Space Power Plant.

    Of course, you need to be careful that they don't develop their own religion...

    --
    No sig for the moment.
  3. I'll believe it when I see it. by Maury+Markowitz · · Score: 2, Interesting

    To avoid repeating myself...

    http://matter2energy.wordpress.com/2009/06/12/space-power/

    1. Re:I'll believe it when I see it. by Tekfactory · · Score: 3, Informative

      Just so we're clear

      SpaceX has published launch costs for the Falcon 9 Heavy @ $2,726 per pound, and Elon Musk testified before congress that they have plans to get costs down to $500 per pound.

    2. Re:I'll believe it when I see it. by Tekfactory · · Score: 2, Interesting

      I was looking at a white paper for Laser based Solar, and they were using Infa-Red Diode Lasers with 50% efficiency to beam down to a concentrator that was focussed on a 20% efficient PV panel on Earth. I asked why they couldn't focus the concentrator on a 27% efficient Stirling Engine instead. I haven't seen an answer back yet.

    3. Re:I'll believe it when I see it. by Maury+Markowitz · · Score: 2, Interesting

      > Elon Musk testified before congress that they have plans to get costs down to $500 per pound.

      Yeah, so did a lot of people. Remember Orbital Sciences? IIRC they were saying $100/lb. Roton was what, $150/lb? Some of these guys said the same thing to Congress too. The Shuttle was going to $25. Hell, Rockwell was trying to get Congress to let him buy a Shuttle for tourist flights.

      Falcon 9 hasn't flown. It has not demonstrated safety, load capacity, turnaround times, manufacturing capability, payload handling, or basically anything. So yeah, it will be great if he can do it. But odds are that he can't, going by the historical record.

      Even if he does, then another factor comes into play, the cost of the cells themselves. I haven't seen any published numbers on the ZTJ's, but I'm guessing they're in the range of $500 or more a pop. That's another couple of billion there (I should add this to the article). Costs can fall with better production, sure, but given that no one seems to have actually ordered any from emcore or Spectralab (no press releases seems like a good sign), it seems unlikely that's happening any time soon.

      And who cares anyway? There's no way this thing can be built as fast as its going to be smashed to bits. Little tiny comsats are getting hit in GEO, a PSAT has no chance. And don't talk to me about laser brooms!

      Maury

    4. Re:I'll believe it when I see it. by Keith+Henson · · Score: 2, Informative

      Tekfactory put his finger squarely on the problem. $500/pound is about $1000/kg and that is ten times to high for space based solar power to undercut fossil fuels. The Japanese recognize this.

      "Transporting panels to the solar station 36,000 kilometers above the earth's surface will be prohibitively costly, so Japan has to figure out a way to slash expenses to make the solar station commercially viable, said Hiroshi Yoshida, Chief Executive Officer of Excalibur KK, a Tokyo-based space and defense-policy consulting company. "These expenses need to be lowered to a hundredth of current estimates," Yoshida said by phone from Tokyo.

      I get the same number close enough. Current price to GEO $20,000/kg; required for space based solar power to displace fossils by being substantially less expensive (1-2 cents per kWh) is $100/kg, a factor of 200.

      So design to cost. Start with the rocket equation:

      Needed 100 t/hr to GEO, $100/kg. Try a two stage to GEO. Requires 14 km/sec, get the first 4 km/sec with a mass ratio 3 hydrogen/oxygen rocket. 4km/sec is easy to do, ask Elon Musk. To get the remaining 10 km/sec with a mass ratio 2 means an average exhaust velocity of 15km/sec.

      Because you stage far short of LEO, the second stage must have relatively high thrust so 60 km/sec exhaust velocity ion engines won't do. Ablation laser propulsion (well understood physics) with an average exhaust velocity of 15 km/sec will provide over a g at 4 GW. The suborbital path keeps the second stage out of the atmosphere long enough (15 minutes) for the laser to push the second stage into geosynchronous transfer orbit.

      At 4 payloads an hour (working the laser full time), each payload to GEO needs to be 25 t. So the laser stage is 50 t, the first stage 50 t (16%structure) and 200 t propellant. On takeoff it masses 300 tons, less than a 747. A large airport handles a lot more traffic than 8 747 takeoffs and landings an hour.

      Hard engineering, no miracles required. Not cheap, the laser might eventually cost $40 billion. To get started (to positive cash flow) came out to $60 billion on a first cut proforma analysis.

      A UK company, Reaction Engines, has an inordinately clever approach to boost the effective exhaust velocity so as to actually put positive payloads (12 tons) into LEO with hydrogen/oxygen single stage to orbit. What they are doing is recovering a lot of the energy that goes into liquefying hydrogen and using that to compress air to rocket chamber pressures up to 26km and Mach 5+. Google for them. Also Google henson oil drum if you want more details.

      --
      End MGM. Get prospective parents of boys to Google: Men do complain
  4. Cue Standard Replies by hardburn · · Score: 5, Informative

    If you are about to post anything about any of the issues below, please at least read the Wiki page on SBSP first. Doing so will save a lot of electrons.

    • How do you beam the power
    • Give people cancer (or other safety issues)
    • Weaponization
    • Beam energy will be lost in transit, absorbed into the atmosphere, and contribute to global warming

    A basic understanding of the technology and physics will debunk all of these, and WikiPedia gives a good overview of these non-criticisms. Anyone continuing to parrot them below will be flogged.

    --
    Not a typewriter
    1. Re:Cue Standard Replies by Tibor+the+Hun · · Score: 5, Funny

      Those are all good links and all, but what will they do about the energy lost in transit, or otherwise absorbed into the atmosphere, and would by its very nature contribute to global warming?

      --
      If you don't know what AltaVista is (was), get off my lawn.
    2. Re:Cue Standard Replies by onkelonkel · · Score: 5, Informative

      What is there left to post? Any science or tech article outside of the IT world is guaranteed to produce an avalanche of specious, ill informed or just plain stupid comments. The best always point out some glaringly obvious non-flaw in the plan "Hurh, hurh, those scientists are so dumb. How are they going to beam solar power on a cloudy day? Bet they never thought of that. They're not so smart..."

      --
      None of them can see the clouds; The polished wings don't care.
    3. Re:Cue Standard Replies by hardburn · · Score: 2, Informative

      The third point is nothing. The energy in question is not easily absorbed by the human body or anything else that isn't specifically designed to capture microwaves. This no more contributes to space weaponization than any other activity in space.

      Consider yourself flogged.

      --
      Not a typewriter
    4. Re:Cue Standard Replies by hardburn · · Score: 5, Informative

      No, it really isn't, not at the frequencies useful for SBSP. These frequencies must be specifically choosen to cut through all the water in the atmosphere (along with anything else). Since human bodies are mostly water, you're not going to absorb very much of the stuff, and what stuff you do absorb will be no different from being on the beach on a sunny day.

      If the military wants to weaponize the basic technology, they're going to have to design with it specifically in mind (even if it's possible to use microwaves for this purpose, which it probably isn't). They won't get a useful weapon using the civilian power system. The civilian system might help increase launch capacity and thus make the weapon system cheaper to build, but again, that's no different from any other space activity of this magnitude.

      --
      Not a typewriter
    5. Re:Cue Standard Replies by hardburn · · Score: 2, Informative

      I'm sure there is no possible way the power transmission system could be changed to emit wavelenths to do something like destroy an ICBM or cause problems with a communication/power infrastructure on earth.

      Your sarcasm is actually true. The antennas involved need to be tweaked to a specific frequency for maximum efficiency. If the military wants to do this, they'll need to build their own stuff, which they'd do anyway if they cared to.

      --
      Not a typewriter
    6. Re:Cue Standard Replies by jollyreaper · · Score: 5, Funny

      If you are about to post anything about any of the issues below, please at least read the Wiki page on SBSP [wikipedia.org] first. Doing so will save a lot of electrons.

      I read your stupid link and it says nothing about the following:

      • The Japanese are doing this. What are the chances powersuits will be used in construction?
      • If powersuits are used, what are the chances that the best and most skilled operators will be teenage girls?
      • If the operators are teenage girls, what are the odds that the suits will be sheer and have the kind of curves that make us think the bad thoughts?
      • If the robot suits are sexy, what are the odds that they will have to be pressed into service as the last-ditch defense of humanity against aliens, evil robots, evil alien robots, and/or tentacle monsters?

      If all of the above comes to pass, I don't give a fuck what you say, the solar power sat will be upgraded into a death ray and it will be fucking AWESOME.

      --
      Kwisatz Haderach
      Sell the spice to CHOAM
      This Mahdi took Shaddam's Throne
    7. Re:Cue Standard Replies by rbrander · · Score: 3, Interesting

      The wikipedia article is a little vague on the lost-in-transit question, noting only that you can beam it one mile at 80% efficiency.

      I found a paper on the subject the last time this came up on /. :

      http://slashdot.org/comments.pl?sid=1069437&cid=26187965 ...that boiled down to just 45% transmission efficiency. Or, to get 1GW into the grid on Earth, you have to generate 2.2GW of electricity up in space. Some is lost converting to microwaves and is radiated away up there, some is lost in space before it gets to the atmosphere, some is lost in the atmosphere, some is lost in the reconversion to electricity from microwave. The last two losses come out as heat in the biosphere. A little under 1GW.

      And now for the important news: ALL electrical energy turns into heat except that which goes into making products like aluminum from aluminum ore...and even that turns back into heat in the very long run.

      More news: all electrical energy except hydro, anything that involves boiling water to turn turbines, runs at maybe 33% efficiency. You'd have to burn 3GW of uranium, or coal, or oil into heat to get out 1GW of electrical energy in any earth power plant.

      So, summary: to get 1GW of electricity by almost any means but hydro, you have to dump 2GW into the air or water, immediately, and the remaining 1GW goes into heat when it's used. This technology would dump less than 1GW into the environment immediately, and the other 1GW when it's used. Net SAVING of heat dump into the environment.

      And it doesn't matter. Larry Niven's warnings in Ringworld about the trillion Puppeteers "drowning in their own waste heat" to the contrary, waste heat is a tiny percentage of the global warming problem; almost all of it comes from trapping more normal solar heat in the biosphere.

    8. Re:Cue Standard Replies by hardburn · · Score: 2, Informative

      You're assuming the design only has the capability to transmit microwaves.

      Which is a pretty good assumption to make, because transmissions at any other frequency (be it IR or some radio frequency) will require a totally different transmission system. An extra system means extra weight, which would increase launch costs on a system that will already be struggling to be economically competitive with ground-based systems.

      Using this stuff as a weapon makes a good movie, but poor science.

      --
      Not a typewriter
  5. Re:seriously? by cyberjock1980 · · Score: 3, Insightful

    I could be mistaken, but isn't the cost of this power plant versus a nuclear power plant (which many people argue is the cheapest form of electricity to produce) over 3 times more? Additionally, due to problems with this technology being in its infancy there will undoubtedly be additional costs that were not taken into consideration.

    I'm sure everyone will talk about this new "green" for of energy and expect it to be cheap, but they would shit a brick if they found out the actual costs they will be paying for electricity generated in this fashion.

  6. USA DOD and FEMA by WindBourne · · Score: 5, Interesting

    The DOD, as well as FEMA, should be pushing to have several built for the America. This would actually enable more private launches, but also give the DOD a means to bring energy into areas that they need. Transportation of fuel is EXPENSIVE. The ability to bring power into a hurricane hit area will enable quick power. More importantly, the ability to beam energy will have to be developed. That would enable many of our construction and open pit mining vehicles to move off diesel. Basically, that would help to drive new innovations.

    --
    I prefer the "u" in honour as it seems to be missing these days.
  7. Re:seriously? by timeOday · · Score: 2, Insightful

    TFA, which is very short, says everything you just said. So I'm guessing the Japanese see this as a longer-term investment.

  8. Re:What is the advantage... by Delwin · · Score: 4, Informative

    The amount of solar energy per m2 outside the Van Allen Belt is far more than what we get here on earth.

  9. Re:seriously? by afidel · · Score: 5, Insightful

    That's what I was thinking, but if maintenance is cheap enough it's not too bad. $70,000 per home supplied amortized over say a 50 year design life is $117/month which is on the low end of my monthly bill. Of course that ignores servicing debt and distribution so it's definitely more expensive then most current options but if you are a small island nation with lots of wealth spending 2x as much for electricity probably isn't a big deal compared to global warming wiping out half your landmass.

    --
    There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.
  10. Re:seriously? by eln · · Score: 3, Funny

    You're thinking too short-term. All they need is another .21 Gigawatts and they can travel to the future and steal the plans for the perpetual motion machines that almost certainly will have been invented by then, and all our energy problems will be solved!

  11. Re:seriously? by CarpetShark · · Score: 2, Funny

    Japan is a small place with a high population density, and a good number of nuclear plants already. Perhaps they're simply running out of reasonable nuclear sites.

    Either way, this opens the way for whole new sci-fi-like plots to do with hijacking power satellites for nefarious purposes, so I'm all for it ;)

  12. Re:What is the advantage... by afidel · · Score: 3, Insightful

    If you are a small island nation with a large population land tends to be very scarce.

    --
    There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.
  13. Receiver at sea? by JSBiff · · Score: 4, Insightful

    Japan is an island nation. You could someone minimize the risk of injury or loss of (human) life by directing the beat to a receiver on some micro-island, or maybe a floating platform like an oil rig, then have cables run from the island/platform to mainland Japan. That way, if the satellite goes a *little* off target, it's not as likely to people (although it still might harm aquatic life, I suppose, though I bet the potential damage and the risks are less than the damage from an oil platform/pipe/ship accident).

  14. It's just the first one. by jayme0227 · · Score: 5, Insightful

    I may be wrong but I think the important thing to remember is that they are paying $21 billion for the development of this space power power plant. If history tells us anything about innovation it's that innovation is costly, but the rewards can be great. Once they get this off the ground, how much will the next one cost? And the one after that? That's the important issue.

    --
    But then I realized the cable was blue, so I only gave it one star. I hate blue.
    1. Re:It's just the first one. by Anonymous Coward · · Score: 4, Interesting

      This is why it's important. A 1GW power plant in space will be the largest space construction project, dwarfing the size of the International Space Station. Furthermore, since the actual devices being sent into space are relatively simple in comparison to a space habitat, economies of scale kicks in quite quickly. So sure, the first 1GW installed may be pretty damned costly, but what about the second? Third? 10th? Not to mention the spill-over technologies in heavy lift rocket design, solar panel construction (this should be a huge boon to solar companies), robotics, etc. Hell, even after the service life of the solar panels have ended, it would still make a super attractive large structure in space to anchor stuff off of (antennas/relay satellites, refueling stations for future long distance missions, maybe even a new space station and living quarters), or just to refurbish and extend its life for possibly hundreds of years.

  15. Re:Over $71k per household? by Nethemas+the+Great · · Score: 4, Insightful

    Why is it that people on /. who live and breath new technology always have such a hard time with new technology economics? Why is it so hard to understand that new technology R & D is obscenely expensive relative to the commoditized versions that eventually follow. If everything was left to visionless people who focused solely on short term economics we'd still be living in the technological dark ages with a miserable quality of life.

    Before one nay-says, consider the benefits to society should the technology under discussion becomes an inexpensive commoditization.

    --
    Two of my imaginary friends reproduced once ... with negative results.
  16. Re:What is the advantage... by Meumeu · · Score: 4, Informative

    ...24 hours of sun...

    Maybe my geography or astronomy are off - Feel free to correct/bitch-slap me if I'm confused.

    How does a satellite in geosynchronous orbit get 24-hours/day of sunlight?

    /bitch-slap

    The equator and the ecliptic are not on the same plane, which means the only times when a geosynchronous satellite is in eclipse is around the equinoxes. In the worst case it can last up to 80 minutes of shadow.

  17. Re:Hmm... by oldspewey · · Score: 4, Interesting

    Here's a random thought: If we were to detect (with sufficient warning) an incoming comet on collision course for Earth, could this thing be reoriented so the microwave beam begins to ablate material off the comet and change the trajectory?

    --
    If libertarians are so opposed to effective government, why don't they all move to Somalia?
  18. Re:Over $71k per household? by east+coast · · Score: 2, Insightful

    Do you know how much the technology rights will be worth if they get this thing working? 21 billion doubtlessly includes R&D. Their return will be fantastic if they get it right.

    --
    Dedicated Cthulhu Cultist since 4523 BC.
  19. Re:Over $71k per household? by blueg3 · · Score: 4, Insightful

    They don't live and breathe new technology -- they live and breathe commodity technology, and think of it as new because they have no familiarity with actual R&D.

  20. Re:What is the advantage... by jeffb+(2.718) · · Score: 4, Informative

    Maybe my geography or astronomy are off - Feel free to correct/bitch-slap me if I'm confused.

    How does a satellite in geosynchronous orbit get 24-hours/day of sunlight?

    Geosync is way out there. If the satellite's orbit were in the same plane as the Earth's, it would only get blocked for about an hour a day. But since geostationary orbit is inclined to Earth's orbit (as Earth's equator is inclined), it only gets blocked at all during two times of the year; the rest of the time, when it's "behind" Earth relative to the Sun, the Sun shines "over" or "under" the Earth and hits it unimpeded.

  21. Echoing in my head... by Icegryphon · · Score: 5, Funny

    "The Agricultural Ministry is Not in Charge of Gundam"

  22. Re:SPP by klingens · · Score: 2, Informative

    If you don't find what you see on the picture you've linked impressive, something is wrong with you.

    Of course, that's just a drawing, so it's still just vaporware.

    Yes I'm very much impressed by a screenshot from a game: http://www.egosoft.com/games/x3tc/info_en.php

  23. Re:seriously? by Alphanos · · Score: 4, Insightful

    Unfortunately, nobody can win an election on the basis of "50 years from now my opponent's policies would cause half of our island to sink!". However, it's easy for someone to say "That guy wants to make you pay twice as much for electricity!". Cue outrage.

    True or not, the consequences of global warming are inconceivable to most people. I think we'll need to see some more directly disastrous results before people really base day-to-day decisions on such considerations.

    --
    Alphanos
  24. Re:seriously? by Anonymous Coward · · Score: 3, Informative

    Current power stations being built with two Westinghouse AP1000 reactors are in the $10 billion range, have an estimated life span around 25 years (versus 15), and produce more than twice as much power. This is a very expensive boondoggle in comparison.

    Over time maybe the costs can come down. I guess you have to build one to figure out the process in any case.

  25. Re:seriously? by Maximum+Prophet · · Score: 2, Informative

    The Japanese have been known to take out 100 year mortgages, so electing a politician with a 50 year plan is not out of the question.

    --
    All ideas^H^H^H^H^Hprocesses in this post are Patent Pending. (as well as the process of patenting all postings)
  26. Re:seriously? by Scubaraf · · Score: 2, Informative

    Agreed! It comes out to 71K per household!

    I don't know what the average monthly bill is for electricity in Japan, but assuming a measly $200 per month, this thing would have to last 29 years just to break even! And that ignored maintenance costs and likely overruns!

    If it works, it's a great proof of concept - and something you can sell to other nations once the costs come down.

  27. Re:3.4 kilowatts per house average? by jgtg32a · · Score: 2, Funny

    Its because you're using Imperial and they are using Metric

  28. Re:What is the advantage... by maharg · · Score: 3, Insightful

    this is an interesting point. How exactly would the energy ultimately be dissipated ? As heat loss to the environment.....

    --

    $ strings FTP.EXE | grep Copyright
    @(#) Copyright (c) 1983 The Regents of the University of California.
  29. Re:What is the advantage... by SBrach · · Score: 2, Insightful

    The Earth's surface area is 510,072,000 km^2. Aproximately half of that is illuminated by the Sun at any given time, so 255,036,000 km^2. This array is 4 km^2. Sure it will be in the sun almost all the time but do you real think that getting an extra .0000008% of energy we already receive from the Sun is going to make any appreciable difference? That is at 100% efficiency by the way.

  30. Japan has the resources and the government... by mollog · · Score: 5, Informative

    "I honestly don't know what the heck is going on in the US!"

    If you just woke up from a coma, America went through 8 years of voodoo economics, record deficit spending by a runaway congress, a jobless recovery, and an economy propped up with record low interest rates that lead to a housing bubble. Combine that with a failure to monitor the largest financial institutions because of an ideological aversion to regulation, and you have a perfect financial storm.

    Meanwhile, Americas's financial frenemies are exploiting an arbitrage on labor and environmental costs, along with currency manipulation and protectionism, to supercharge their economies.

    Now that you're up to date, we have a new American President who is not beholden to special interests, especially energy interests, who has some vision for a clean energy future. Japan has just announced a bold new project to generate photovoltaic energy and some Americans are very curious.

    All of that was sardonic. What do you not understand?

    --
    Best regards.
    1. Re:Japan has the resources and the government... by Darkness404 · · Score: 5, Insightful

      Now that you're up to date, we have a new American President who is not beholden to special interests, especially energy interests, who has some vision for a clean energy future.

      When did Obama resign?

      --
      Taxation is legalized theft, no more, no less.
    2. Re:Japan has the resources and the government... by commodore64_love · · Score: 2, Insightful

      >>>we have a new American President who is not beholden to special interests,

      Except that he's already met with the insurance CEOs and promised not to negotiate pricecuts during the next 10 years. In exchange the companies are supposed to endorse his Uncle Sam healthcare. (And why wouldn't they if they are guaranteed to be paid big bucks by the government, and without hassle.)

      Oh yeah - I almost forget RIAA. Last I heard Obama's assigned 4 of their lawyers to his administrative posts... lawyers who have sent-out letters to citizens which basically said: Send us $5000 or else get sued millions.

      Obama's just as smarmy as our last president.

      --
      "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
    3. Re:Japan has the resources and the government... by Minwee · · Score: 4, Insightful

      That's shocking. It's almost as if he's in charge of _exactly the same country_ as the last guy was.

      Don't they have a tradition of launching all three hundred million people into the sun every four years so they can get a clean start on things?

    4. Re:Japan has the resources and the government... by TheRaven64 · · Score: 3, Informative

      Japan has just announced a bold new project to generate photovoltaic energy and some Americans are very curious

      In case you weren't paying attention, this follows a similar announcement by the state of California (although I seem to recall their proposal being a bit smaller - in fact it's mentioned in TFA: 200MW, as opposed to 1GW for the Japanese plant). It's a marginally less silly idea when Japan suggests it because they don't really have much landmass that's suitable for solar power generation, but it's still not actually a good idea.

      Once you factor in the energy cost of getting into orbit, it's a silly idea. The lightest solar cells we can produce are 84 mg/cm2. That works out at 840g/m^2. The cheapest flights to orbit cost around $4,300/kg, or $3,612 for a 1m^2 of lightweight solar panel. This panel is hit by about 1kW of sunlight, but the most efficient panels will only output around 400W from this (the lightest are not the most efficient, but we'll gloss over that for now). The highest cost of wholesale electricity I can find is around $1000/MWh, or $1/kWh, or $0.4 for every hour of operation. To recoup just the launch costs, this magical solar cell would have to operate for one year.

      Now, these are best-possible-case figures. In practice, the efficiency is likely to be a shade under 20%, which doubles the ROI time. The launches are probably not all going to be the cheapest possible, and the solar panels aren't the only thing that needs lifting up (you need the frame, the microwave transmitter, and so on). I've also been assuming 100% efficient power transmission to the ground so far. If it's only 50% efficient (which is still pretty high) then double the ROI time again. I also assumed the solar panels themselves were free. Given that the solar wind in orbit is fairly hostile to solar panels, you'd be lucky to get a positive EROI before the panels degraded to such a degree that they were no use.

      --
      I am TheRaven on Soylent News
    5. Re:Japan has the resources and the government... by antirelic · · Score: 2, Informative

      How is that informative? What EXACTLY has Obama changed or plans to change?

      Oh, right. Very different. Record deficit spending: $700 billion stimulus package... which was just a massive pork project for congress. Lets not forget, Ben Bernanke. Didnt Obama JUST reappoint him to the SAME POST as GW Bush?

      Jobless recovery, I believe those were the EXACT same words Obama used to describe our current "recovery" (like we are really in a recovery). Cash for clunkers is responsible spending?!? Exactly how?

      Yeah, Obama is a different bird. His "advisors" are a bunch of Socialists and Communists (Van Jones professed to be one).

      Aversion to regulation. Check. I love this new administration and its wonderful new regulation. Wait till cap-n-tax takes hold. Jobless recovery... lol. Universal health care... even lol'er. Fiscal responsible regulatory regime is not Obama. An economic illiterate with a desire to force dramatic socialist policies without consideration of the reality, check.

      How many articles need to be posted on Slashdot.org about the feasibility of "clean energy resources" replacing carbon based fuels? The math is out there, but dont let physics or science get in the way of "Eco-Religion".

      Bush was a huge asshat who increased the size of government and spent like a drunken sailor. Screw him. But if you are pissed at Bush for his poor policies, how can you turn around and embrace Obama who has already outspent Bush in just 6 months?

      I do agree with your point on our "frenemies".

      See, I'll agree with anyone when there right.

      --
      20th century Marxism is not progress...
    6. Re:Japan has the resources and the government... by TheRaven64 · · Score: 2, Funny

      You Americans...

      Not sure why you're addressing that at me - I'm British. Projecting much?

      --
      I am TheRaven on Soylent News
    7. Re:Japan has the resources and the government... by 4D6963 · · Score: 3, Insightful

      What, that's the best you got? The first one is called politics, that's how things actually work. Inspiring ideals-filled speeches are great for getting the public opinion behind you, but when it comes to getting the job done, you have to get your hands dirty and compromise left and right to even get a faint shadow of what you promised to happen. If you compromise with a powerful lobby behind closed doors then you won't have to compromise in the bills you want to pass to keep them happy.

      As for the RIAA lawyers, allow me to dismiss it as general lawyer-bashing. Lawyers do what they have to to win for whoever pays them. They were picked because they were good lawyers. It doesn't matter what they did before (as long as it was legal), lawyers are the military of the justice system, they'll shower your ass with legal napalm and white phosphorous to accomplish their mission.

      --
      You just got troll'd!
    8. Re:Japan has the resources and the government... by Madsy · · Score: 2, Insightful

      Bush was a huge asshat who increased the size of government and spent like a drunken sailor. Screw him. But if you are pissed at Bush for his poor policies, how can you turn around and embrace Obama who has already outspent Bush in just 6 months?

      IIRC, Bush happened to spend money on two needless wars, unless you think revenge was a fair motive. Obama on the other hand got a recession to take care of just when he entered office. You think those two events can be compared directly and fairly when it comes to government spending?

  31. Re:What is the advantage... by bberens · · Score: 3, Funny

    You failed high school physics didn't you?

    --
    Check out my lame java blog at www.javachopshop.com
  32. Re:What is the advantage... by spitzak · · Score: 2, Funny

    Note that this only happens twice a year, not every day.

  33. I saw this already... it didn't end well. by Firemouth · · Score: 5, Funny

    I've played with this technology before and thing's didn't go so well. I was the mayor a city and we had a few hundred thousand people in it. Let's call them "Sims" to protect their identity. They were all bitching about how coal polluted the atmosphere and such. So one day after I was lounging around in my mayor's office this guy called me up and said "hey you should try this microwave energy stuff, it doesn't pollute." So I dropped some coin on this new technology, and everyone loved me.

    That is, until the beam got out of alignment and fried half of the town. Then a huge robot showed up and finished off the rest of the town. And just to add insult to injury, an 8.0 earth quake hit and swallowed up what was left of the city.

    Let that be a lesson to anyone who might want to try this technology.

  34. Re:Over $71k per household? by Nethemas+the+Great · · Score: 2, Insightful

    Run the time line a little further. Who says we have to launch pre-fabbed units from earth? As for a market why I'd suspect all earth would find it handy not to have to rely on current land based technologies, particularly fossil fuels, nuclear and hydro. I suspect that beaming power to mobile ground platforms in remote locations and/or disaster areas would be incredibly handy. I also believe it would be quite useful for scientific outposts and colonies off-world. As I see it the better question to ask would be "who wouldn't want it?".

    --
    Two of my imaginary friends reproduced once ... with negative results.
  35. Re:seriously? by Tumbleweed · · Score: 2, Insightful

    Where I live (Vancouver, Canada) my monthly bill is about $22. I use electric baseboard heaters, too!

    Yeah, but using hydro is cheating! :)

  36. Re:seriously? by Tumbleweed · · Score: 4, Insightful

    Wind is about $1B per gigawatt, and an installation is good for 150 years with generator replacements on average 35-50 years... It also creates thousands of jobs, is easy to repair, and is not a single point terorist threat target...

    Direct comparisons aren't as easy as you think. Wind also doesn't scale as easily - you're not taking transmission costs into account, or the massive siting problems. Many of the large wind farms in the Western Interconnect have had - or are having - lots of opposition from the locals who don't want large turbines 'spoiling' (personal opinion) their view, or making noise 24/7. When you put them in out of the way places (which is where the best wind is anyway), then you're generally putting them where there aren't already heavy duty transmission lines. Then when you also add in heavy transmission line costs, you also get to deal with rights of way and environmental impact studies for that entire transmission line route, etc, etc. Wind is not a baseload power source - it varies, which adds costs to how you hook it up to the grid. Orbiting solar will be 24/7/365/forever, plus you can put as many up there as you can afford to, and the cost of these things will come down as our cost-to-orbit drops in the future.

    You seem to think this *first* orbiting power station means *only* (hence your 'single point'). There's always gotta be a first. I'd plan on LOTS more of these if I were you.

    re: terrorist target

    Lots of terrorists targeting Japan? The Taliban has space capability now, too, eh?

    I'm not saying this project doesn't have its problems, but you need to put it into perspective.

  37. Re:seriously? by mckinleyn · · Score: 2, Interesting

    Because in 2050, you version 2.0 will say
    "Hey, guys, if we continue at the current rate, sea levels will rise by about 11 centimeters in *2150*. Let's just work on the problem later".

  38. Population by AP31R0N · · Score: 5, Insightful

    What will Japan's power consumption be in 10 to 20 years? They're having so few kids the population should be plummeting soon.

    We don't need more power, Mr. Scotty. We need FEWER PEOPLE. Pollution would be less of a problem if there were fewer people creating it. Cutting emissions, conserving and finding cleaner sources of energy while all very good... won't mean shit if our growth is still horrifically out of control. With a smaller population we'd have more resources per person and less waste generated.

    Similarly, there are no food or water shortages... there ARE places of the world that that too many people for the available resources. If we have 1 gallon per person per day at a population of 100,000... we'd have 2 gallons per person per day if the population of 50,000.

    i'm not talking about killing off people or even letting them die. i'm talking about getting the population to something that is sustainable. The quantity of life is going to start seriously farking with our quality of life... and THEN with the quantity. If we don't get it under control we're going to have more wars, more droughts, more everything that sucks.

    "easier said than done"

    Really? No kidding! Can i have your autograph before you win the Nobel Prize for Pointing out the Obvious?

    "But that's mean"

    Mean is kids dying of starvation because their parents had too many kids. Mean will be wars over water.

    --
    Utilizing the synergization of benchmark e-solutions to pre-workaround action items!
  39. Re:seriously? by Caue · · Score: 2, Insightful

    how much was spent researching, designing, testing and building the first nuclear power station? they are paying the R&D. americans forgot how to do that?

  40. Re:seriously? by w0mprat · · Score: 3, Insightful

    Bare in mind nuclear is heavily subsidised, expensive to run, and with additional hidden costs that are not accounted for. Factor in environmental impact and you have a strong case for space based solar power.

    Oh and the cost of launching a given mass to space is falling, and will get much lower.

    --
    After logging in slashdot still does not take you back to the page you were on. It's been that way for 20 years.
  41. And in related news.... by HikingStick · · Score: 2, Funny

    TOKYO - Residents have reported that giant reptile, Godzilla, was just struck down and apparently killed by a misdirected microwave beam from Japan's orbiting power generation satellite. The giant lizard fell in a residential area and caused substantial damage. Hundreds of people are missing and presumed dead.

    The Greenpeace and the International Humane Society have issued a joint statement criticizing the Japanese government for allowing their satellite to destroy the last specimen of this endangered species.

    Godzilla had a long history of appearing in Japanese cities, and often caused much damage with each visit. Typically, the creature appeared when some other monstrous threat appeared. Apart from the Windows 7 launch in Tokyo, no one is aware of any significant events that would have drawn the creature to the city.

    Because of his history as a destructive source, many people are glad to see the death of the giant lizard. A representative of the Japanese tourism ministry, however, is reported to have said that, "Godzilla's passing will have a profound affect on the people of Japan, and upon the Japanese tourist economy."

    Japanese street vendor, Aido Hawishinna, witnessed the event and reported, "It hit the buildings as it fell, and crashed just beyond my stand. It smells like baked fish. I wanted to be the first merchant in the city to sell Godzilla-burgers, but the police and army will not let me harvest the meat before it spoils."

    The Japanese government, in an official statement issued hours after the incident, announced that it plans to conduct an autopsy on the remains, to determine if Godzilla's death was related to problems on the orbital microwave power platform.

    --
    I use irony whenever I can, but my shirts are still wrinkled...
  42. Re:seriously? by Nadaka · · Score: 2, Interesting

    Nuclear power has those problems only because we throw out 99% of nuclear fuel before we use it combined with the fact that all our nuclear facilities are aging (because we stopped building nuclear power plants) and using 30 to 50 year old technology.

    A modern feeder/breeder reactor would be much cheaper and is more "green" than this (remember all that rocket fuel you have burn to launch the orbital platform and a feeder/breeder can use up the "nuclear waste" of obsolete reactors as fuel with minimal waste).

    There are only two advantages of the orbital solar/microwave plant.
    1: The NIMBY sheep won't be upset.
    2: You can use it as an orbital death ray.

  43. Not beholden to special interests you say? by GameboyRMH · · Score: 4, Insightful

    we have a new American President who is not beholden to special interests, especially energy interests,

    Maybe not energy interests, but if he wasn't on the take from media interests he would have cut the US out of ACTA negotiations by now, especially since he was talking all about transparency and making himself out to be a technophile during his campaign (so much for that). He's also made a habit of appointing RIAA lawyers to his administration.

    --
    "When information is power, privacy is freedom" - Jah-Wren Ryel
  44. Re:seriously? by damburger · · Score: 3, Funny

    No, but having a gigawatt orbital death ray gives puts you in a better position to negotiate emissions reduction treaties

    --
    If we can put a man on the moon, why can't we shoot people for Apollo-related non-sequiturs?
  45. Re:The Empire strikes back by catbertscousin · · Score: 2, Funny

    Japan doesn't need an orbital laser cannon for world domination; they control the production and supply of manga.

    --
    No good deed goes unpunished. - Avon, Blake's 7
  46. Re:seriously? by ImprovOmega · · Score: 2, Interesting

    There aren't very many (or any that I know of) terrorist organizations that could hit a LEO object, and if they're talking geo-sync then you're really safe. I mean, governments have a hard time with that. Your only potential threat maybe would be North Korea (for LEO, geo-sync would be out of their range too). Terrorist groups thrive on cheap, easily deployed destructive devices. There's no concealing something capable of going 300+ miles straight up.

  47. Re:seriously? by falconwolf · · Score: 2, Insightful

    If only Japan could somehow magically create more open, unfarmable, and uninhabited land where the turbines could be placed without taking away already scarce farm land or slowly deafen anyone within a kilometer!

    Unlike nuclear power land for wind turbines can be used for food farming as well. Here in Minnesota many corn farmers site wind turbines on their farms. Platforms for towers don't take much space. And wind turbines aren't as loud as some make them out to be. All those who say they take too much land or are too loud are doing is spreading FUD and lies. And saying they kill a of birds is also FUD. Buildings, cars, and cats kill many birds. If you're worries about birds being killed by wind turbines then complain about birds being killed at airports. Here is a list of "9 Human Activities That Threaten Birds".

    Falcon

  48. Re:Got any Gonads by Louis+Savain · · Score: 2, Funny

    My stuff speaks for itself. My point was and is that anybody who accuses me of being a crackpot in public should publically identify himself or herself. And yes, it is all about gonads and the lacks thereof. It takes guts to be accountable to one's words.

    Ad hominems are personal opinions. They smack of cowardice, especially when they are anonymous. It's a chicken shit way of trying to destroy a message without taking the time and the effort to address it. Opinions are a dime a dozen. A well-formed argument, on the other hand, is priceless.

  49. Missing Numbers in Article by Martin+Hellman · · Score: 2, Insightful

    The article says "Transportation of the solar panels into space is too expensive at the moment to be commercially viable, so Japan has to figure out a way to lower costs," so the transportation costs cannot be included in the stated $21B figure, making it seem of little value. At first I was really impressed since $21 a watt is within striking distance of being economically competitive. (Fossil fuel powered plants cost in the vicinity of $5 per watt to build PLUS fuel costs. And any new technology tends to come down in price with experience.) Another possible problem: The article says the satellite "produces" one gigawatt, which may not be the same as receiving one gigawatt on the ground. Anyone know the answer to that question?