Slashdot Mirror


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."

19 of 550 comments (clear)

  1. 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.

  2. 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.
  3. 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.
  4. 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).

  5. 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.
  6. 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.
  7. 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"
  8. 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.

  9. 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
  10. 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.
  11. 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.
  12. 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.

  13. 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!
  14. 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.
  15. 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)
  16. 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.
  17. 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?

  18. 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
  19. 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!