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Sanyo Solar Ark and Giant LED Display

shokk writes "Those of us who have played with CrystalFontz and Matrix Orbital serial LCD displays for geeky messaging will get a kick out of the 77k+ LED Solar Ark by Sanyo (only 21k of which are using as red/green/blue combinations for the presentation display). Not only does this behemoth show off its fantastically huge array of solar panels generating 530,000kWh/year and its high efficiency white LED technology, but it also sports a non-chemical water purification system in a very Feng Shui way. Lighting to restrooms underneath is provided by fiber optic paths from the white LEDs in the giant display above." It's a small plant as power plants go (600 kilowatts, when many plants are hundreds or thousands of megawatts) but it was cheap to produce, aesthetically pleasing, and of course, non-polluting, so that Godzilla won't visit.

7 of 196 comments (clear)

  1. We need more of these (not first poster's either) by liquidice5 · · Score: 2, Informative

    Solar energy is a pratically infinite source of energy, and we have not even begun to tap its potential.

    Sooner or later we are gonna run out of oil, and solar is the future. this shows that we dont big ugly solar farms to get the same result

    bravo to the Japs!!!

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    Conscience is the inner voice that warns us somebody is looking - H.L. Mencken
  2. Re:We need more of these (not first poster's eithe by Graff · · Score: 3, Informative
    Solar energy is a pratically infinite source of energy, and we have not even begun to tap its potential.

    Sooner or later we are gonna run out of oil, and solar is the future. this shows that we dont big ugly solar farms to get the same result
    Yes, there is a lot of energy coming from the sun that we can potentially harvest. The main problem is the terrible efficiency at which the current collection methods operate. It turns out that once you add everything up, you come up with a power/pollution ratio for solar energy which is far above that of fossil fuels.

    The main factor in this is a combination of the dirty manufacturing processes needed for solar cells, and their terrible return over their operational lifetime. We need develop cheap, long-lasting, efficient solar cells that don't create a lot of pollution during manufacture or else solar energy will remain merely a pipe dream.

    One idea which has great promise is for us to put up power satellites. These satellites would collect the more concentrated solar energy outside the Earth's atmosphere, turn it into a microwave beam, and beam it down to collectors on the Earth's surface. Because of the enormous amounts of energy which would be harvested in this manner, it should be far less polluting than almost any other power generation method. The only real pollution would be in the form of heat pollution, but that can be taken care of with reflectors in space to lower the amount of sunlight hitting the Earth in that area, balancing out the heat added by the microwave beam.
  3. Re:So, what is it? by Anonymous Coward · · Score: 5, Informative

    It's an extremely elegant hack.

    A photovoltaic collector provides the power to run a system of lights and a water purification system. The lights and water purification system are brought back together to provide a set of clean roadside restrooms. Some of the company's ongoing research (which is normally nothing but a revenue drain until productization occurs) is demonstrated to the public at large in a way that clearly benefits the company.

    It is a brilliant, practical, impressive, and functional billboard that meets the needs of travellers, serves the purposes of corporate PR, and extracts the best possible value out of a huge pile of returned surplus PV cells that were returned to them because they didn't put out the advertised power.

    Talk about making lemonade outta lemons.

  4. Carbon debt - you can say that about anything by Mandelbrute · · Score: 3, Informative
    At approx 3000 tonnes I would hate to know how much carbon was burnt to construct this monolith. At a saving of approx 90T/annum of Carbon emmisions (the rebate for solar energy) this will be back to break even approx 2035.
    It costs energy to make anything that is constructed - even weaving a basket with has a carbon debt. After all, the materials had to get to you somehow, plus the energy that went into producing and transporting the food that you ate for lunch before, and if you do it with the light on that adds in as well. In a lot of cases it just isn't worth claculating such things, the figures you get for oil, coal etc. carbon debts would usually just include the fuel and not transportation, construction, mining, energy used when the contractors are watching tv at night etc. In the case of alternative energies a lot of these things are considered to make the figures look bad - but there is no real comparison. The "carbon debt" is usally at best a very rough comparison, and at worst a lie used for political ends. The numbers are just not kept in track in enough detail. Even the carbon debt for the CPU of the computer you are reading this on is going to vary wildly based on the batch size, rejection rate, and how big the zone-refining setup for the silicon was. The carbon debt for all the copper bits will also vary wildly.

    stuff like steel uses a bit less
    You need to use a lot of carbon to make steel, and a lot of electricity to make aluminium. How you get the electricty will affect the carbon debt of the aluminium wildly - if it's from the south end of Australia it will be from hydro, if it's from the north it will be from coal - it isn't just a simple number.

    Besides, with processes like sol-gel you can almost make solar cells in a bucket, and cure them in an oven.

  5. Non polluting? Ahem... by SysKoll · · Score: 4, Informative
    Guys, last time I was in a bunny suit (aka clean room jump suit), I was within spitting distance of a lot of extremely nasty chemicals. Sulfuric acid, heavy metals, arsenic, to name only a few.

    This web site does not describe the process they used to fabricate the solar cells. If they use the same old cheap process as usual, their cells slowly release arsenic in the environment. In 10 to 15 years, the cells will be too porous to be useful and so worn out they'll have to be scrapped.

    Which of course will release all the arsenic still trapped in them.

    I really don't know what's this legend about the semicon industry not polluting. Between the huge water use and the nasty chemicals, any semicon plant is a drain on resources. And solar cells release contaminants, so it's not an environmentally acceptable power source either.

    Between a nuclear plant and a field of solar cells of the equivalent power, the latter would be by far the worst source of pollution.

    -- SysKoll
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    Mad science! Robots! Underwear! Cute girls! Full comic online! http://www.girlgeniusonline.com/

  6. Re:Speaking of Feng Shui... by Jah-Wren+Ryel · · Score: 4, Informative

    Funny all the AC's who freaked out, trying to call me racist and what not - if any of you spas ACs are muslim, then judging from your responses I know more about being a muslim than you do.

    First off - no one mentioned trichinosis - the worm that often lives in pig meat and is fatal to humans. If you eat pork with trichina worm that has not been well cooked, you can get infected yourself. That is the reason both Jews and Muslims have a superstition about avoiding pork - because 2000 years ago, give or take, it was real hard to cook pork well enough to kill the worm without making the meat into charcoal in the process. That no longer applies in a 1st or 2nd world country where we have ovens, yet the superstition persists and you get to hear all kinds of rationalization for it about pigs being dirty and what not, even in the face of contradictory evidence - which is a prime characteristic of a superstition.

    Second - both pork and lobster, and even shrimp for that matter, are all haram. The only kind of sea food that is halal is that with scales on it, i.e. fish. If you don't have a learned person to ask directly, just whip out google and do a search, it should take you about 30 seconds. There is no halal method of slaughter for any of these animals to prepare them "properly."

    Third - pigs are not naturally dirty animals. They seem to tolerate crap pretty well, but they certainly don't go out of their way to live in feces. It is humans, for the most part, that force them to live that way. Wild pigs certainly do not live that way at all - I grew up in an area with enough feral pigs to know that first hand.

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    When information is power, privacy is freedom.
  7. "hypochlorous acid" != Chemical??? by stapedium · · Score: 2, Informative
    it also sports a non-chemical water purification system in a very Feng Shui way

    Read this and tell me that hypochlorous acid isn't a chemical.

    Hmm. The description on the Sanyo web site sounds pretty close to swimming pool chlorine generators. They essentailly use electricity to genreate chlorine from good old NaCl.

    This system keeps water clean by hypochlorous acid generated through water electrolyzation and also prevents the generation of Legionella bacteria which is harmful to the human body, especially the lungs.M


    I think using chlorine to purify the water is a good thing. That waterfall wouldn't be nearly as attractive if it was flowing with raw sewage.