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Hydrogen Buses In Iceland

dapyx writes "As part of the shift away from the fossil fuels, Iceland began its switch to hydrogen-powered buses, which are now used on the streets of the capital, Reykjavik. About 70 percent of Iceland's energy is already met by green power. Iceland plans to become the first oil-free country by 2050."

56 of 465 comments (clear)

  1. Misconception by tepples · · Score: 5, Funny

    Iceland is rather green. It's Greenland that has the ice.

    1. Re:Misconception by tuxter · · Score: 2, Funny

      It was decided to name the countries this way for tourism. Iceland had too many visitors, because it is truly stunning, so they named it iceland to deter excess tourism, the opposite for greenland. I do find it highly ironic though (in nomenclature only)that iceland is using "green" busses......

  2. Hydrogen from where? by GrouchoMarx · · Score: 3, Insightful

    Honest question here. Isn't one of the best sources of hydrogen for such things hydrocarbons? Which are plentiful in, you guessed it, oil? Breaking water is not very efficient and requires electricity in the first place. So how does a "hydrogen economy" free us from dependence on oil? Where does the hydrogen come from that it's so clean?

    Not intended as a troll, honest question.

    --

    --GrouchoMarx
    Card-carrying member of the EFF, FSF, and ACLU. Are you?

    1. Re:Hydrogen from where? by gl4ss · · Score: 2, Insightful

      iceland has lots of thermal energy for effectively "free".

      elsewhere, you got this 'nukularrrr' reaction that you can use to create power to break down that water. but don't tell the ecomaniacs, they wouldn't want you to save the earth.

      (honestly, that's just about the only REALISTICAL option for breaking water down to hydrogen on big enough scale. hydrogen is just a way to store energy in this case and the energy HAS to come from somewhere, and the 'eco' sources are not that plentiful or viable to be used in the scale that replacing oil dependency needs.. my opinion? that we won't move into such direction on large scale before we have fusion as viable energy source)

      --
      world was created 5 seconds before this post as it is.
    2. Re:Hydrogen from where? by aldoman · · Score: 2, Interesting

      Electrolysis is VERY efficient. Try doing it sometime. Get a 9V battery and a cup of water. Connect them up.

      As you will notice, you'll have hydrogen bubbling and virtually NO heat. Heat is the waste product here. There is no heat, so there is no waste (more or less).

      What you are referring to is the fact that it's a very energy-expensive process. But so is electrolysis in aluminium - the price of which is around 90% of the cost of the electricity - yet tonnes upon tonnes are made. The people that discovered how to get the aluminium we use today thought it'd never be used because all they had was batteries (in 1825) and as such put it down as an interesting, but not very useful, discovery. Nowadays the world wouldn't be the same without it.

      What if we discover a 'cheap' nuclear fusion process in 5 years, after the G7 realise that yes, peak oil is a problem and pump trillions into research? Hydrogen would be a great energy carrier. Let's face it, if you could 'fill up' your hydrogen car overnight in the garage for $1 because electricity is so cheap thanks to fusion, everyone would choose it, even if it had a 270mile range (which I suspect will vastly increase with time).

    3. Re:Hydrogen from where? by barawn · · Score: 2, Informative

      Note: all fuels are just batteries. They've got stored energy which was built up by some process - in the case of fossil fuels, it's solar energy from a long, long time ago, combined with gravitational potential energy (from being squished under things).

      Isn't one of the best sources of hydrogen for such things hydrocarbons?

      Hydrocarbons have hydrogen that's easy to liberate - that is, you'll get more energy out of burning hydrogen than by separating it. You get less energy than you would by just burning the hydrocarbon, so if there was no other source of hydrogen, it'd be stupid.

      However, hydrogen happens to be, shall we say, extremely plentiful.

      Where does the hydrogen come from that it's so clean?

      The sky. Well, only on a miserable day - more likely, from lakes and the ocean. That is, water.

      Of course, it takes more energy to split water into hydrogen and oxygen than you get by burning the hydrogen (but not much more - it's just efficiency factors here). So you need some way to generate that energy. Thankfully, you can just use electricity - and there are plenty of clean ways of generating electricity. You could even imagine geostationary solar power satellites beaming power down to water electrolysis hydrogen plants, if you want to be really silly. Other than spreading water around the country and the slightly increased heat generation, there's no environmental impact.

      The entire point of the hydrogen economy is that while we can generate electricity, electric cars, to put it mildly, suck, because batteries suck. So even if we could replace all those power plants, how would we replace the oil we use to move cars around? And that's where hydrogen comes in.

      Personally, I prefer hydrogen over other fuels (biodiesel) because hydrogen is essentially infinitely scalable, whereas biodiesel definitely has an upper limit. Our desire for fuel seems to have no bound, so replacing one solution with a scaling problem (oil) with another one (biodiesel) seems silly. Until we have portable fusion generators, hydrogen is probably the farthest-scaling solution, so it's nice to not be pansy and go for the best option.

    4. Re:Hydrogen from where? by schtum · · Score: 2, Insightful

      Rat in a wheel?

      With distributed computing catching on, this might not be such a bad idea. How many people own or otherwise use exercise equipment? (i know, wrong place to ask). It shouldnt be too hard to convert those machines into generators and have them dump their power into the grid. Individually, each person may generate an insignificant amount of electricity, but it all adds up.

      I'm picturing a World War II style government propaganda blitz with "victory workouts" replacing victory gardens.

    5. Re:Hydrogen from where? by Anonymous+Cowpat · · Score: 2, Informative

      The sun... All we have to do is modify one of the shuttles with regenerative-multi-vector-ablative-reverse-the-pol arity shielding and go get some, there's plenty up there.

      But, in all seriousness, solar power to run electrolysis of water

      285 KJ per mol of water.
      1370 W m^-2 at the upper atmosphere, since I have NO IDEA WHATSOEVER how much is absorbed by the atmosphere, I'm going to knock 90% off for the value on the surface, 137 W m^-2. Halve it (for the fact that the extreme north doesn't really face the sun) 68.5 W m^-2 and get 20% of that value for what a solar cell would get out of it 13.7 W m^-2. 5.7 hours for each sqr meter to produce enough energy to make 1 mol.
      Now, iceland could probably spare ~ 1000 Km^2. 1 Km^2 is 1,000,000 m^2, so 1000 of them is 1,000,000,000 m^2.
      In 5.7 hours that's 1 (US)billion mols of water electrolysised. Or, to put it differently, 20803 sqr meters are required to get 1 mol in a second. 48070 mols per second. Now, a mol = 6.023 x 10^23 molecules of water, that's 2.895 x 10^28 hydrogen molecules per second.
      (PV/nT)=R. at STP (T=273, P=1.013x10^5), n is the number above and R = 8.31, V is:
      V=nRT/P
      V=465.8 cubic meters of hydrogen. Per Second. That's 40,245,120 cubic meters per day.
      Now, I suspect that my original energy input is wrong, that it won't be 100% efficient and that iceland probably doesn't want to dedicate 1000 Sqr Km to solar panels, but that's still quite a lot of hydrogen, particularly for a country with a population like that of iceland.

      --
      FGD 135
    6. Re:Hydrogen from where? by ltbarcly · · Score: 2, Insightful

      You dope. Water vapor as a greenhouse gas? CRAP. We had better get a big pool cover for the ocean.

  3. Totally oil free? by SpamSlapper · · Score: 4, Interesting

    "Iceland plans to become the first oil-free country by 2050." Wow. That's impressive. So they're not going to use any products made from plastic, or oil-based paints, lubricants, etc?

    1. Re:Totally oil free? by jonbrewer · · Score: 3, Interesting

      "Iceland plans to become the first oil-free country by 2050." Wow. That's impressive. So they're not going to use any products made from plastic, or oil-based paints, lubricants, etc?

      By 2050, I'd expect so. Plenty of plastics, paints, and lubricants made from biomass today.

      http://www.google.com/search?q=soy+plastic

      Now whether using soy-based plastic is actually more efficient than using oil-based plastic is a different story, but oil has all sorts of political/social/economic inefficiencies that just don't show up in the base cost of production.

  4. In the case of Iceland... by temojen · · Score: 5, Informative

    Electrolysis of water, powered by geothermal energy.

    1. Re:In the case of Iceland... by DaHat · · Score: 4, Informative

      Yours is the first post I have seen to mention the key point.

      For those not in the know: Iceland is blessed with an abundance of geo-thermal energy which dramatically lowers their electricity and heating costs.

    2. Re:In the case of Iceland... by Surt · · Score: 2, Informative

      Hydrogen is hard to ship and to store. Those are two of the main sticking points preventing rapid adoption of hydrogen for energy storage.

      --
      "Who is the Journal of Quantum Physics going to believe?" --Stephen Hawking
    3. Re:In the case of Iceland... by MrPC81 · · Score: 2, Insightful

      Insanely harder than Natural Gas. And even Natural Gas is impossible to ship between continents in any serious volume (the load from an LNG tanker would barely keep the lights on in any serious size city for a few days, weeks if everyone was an energy miser).

      If you have a source of carbon dioxide handy, you could just convert the hydrogen to methane (2H2 + CO2 = CH4 + O2) and just have the end users burn the methane in an internal combustion engine instead. Or use steam reformation to re-release the CO2 and split it from the Hydrogen.

      Anyway, Hydrogen has a very nasty habit of leaking from just about every containment vessel ever produced. When it leaks, it goes up. Due to its extremely low weight, it reaches escape velocity and goes into space, though there's a good chance some of it will do a bit of melding with atmospheric ozone on its way up and even further wreck the ozone layer.

      If we produce heaps of hydrogen and half of it ends up going into space, even if the energy source for producing the hydrogen is renewable, the fuel certainly isn't.

    4. Re:In the case of Iceland... by MrPC81 · · Score: 2, Informative

      Absolute Zero: 0 Kelvin
      Freezing point of Hydrogen: 13.97 Kelvin
      Boiling point of Hydrogen: 20.41 Kelvin
      Mean surface temp of Pluto: 53 Kelvin
      Freezing point of Water: 273.16 Kelvin
      Boiling point of Water: 373.16 Kelvin

      How much energy do you think it would take to keep Hydrogen in that six and a half degree window so that it is liquified for transport but doesn't freeze and break the tanker in half? Then relate to that to the (rather low) energy value of the Hydrogen. Is it worth it?

  5. Oil free? by agm · · Score: 3, Insightful

    I predict we will all be oil free by 2050 - because there won't be any left! Well, not the kind that gets sucked out of the ground at least.

    1. Re:Oil free? by grqb · · Score: 2, Interesting

      I doubt we'll be oil free. Oil is used for everything. 1 calory of food has 10 calories of hydrocarbons in it (and this doesn't include transportation of the food). There will always be oil in the ground. The theory of peak oil says that there will always be oil in the ground but once we hit peak oil we'll never be able to increase the rate of oil extraction, which means that unless we find another energy source, we won't be able grow economically since economic growth requires energy growth.

  6. Re:Hydrogen? by Epistax · · Score: 2, Interesting

    You mean with the combustable paint, right? And the idea that it could have held helium wouldn't have saved it, where as if it had different paint it would have been fine? That's what you're referring to, right?

  7. Progress by zachthemagictaco · · Score: 2, Insightful

    Ah, finally. All these years of speculation, the United Nations, and treaties is resulting in something.

    Of course, the U.S. doesn't approve of this, as we reject the Kyoto Treaty.

    1. Re:Progress by j0e_average · · Score: 2, Informative

      I did. The world's second-largest emitter of greenhouse gases is China. Yet, China was entirely exempted from the requirements of the Kyoto Protocol. This is a challenge that requires a 100 percent effort; ours, and the rest of the world's. America's unwillingness to embrace a flawed treaty should not be read by our friends and allies as any abdication of responsibility. To the contrary, my administration is committed to a leadership role on the issue of climate change. Our approach must be consistent with the long-term goal of stabilizing greenhouse gas concentrations in the atmosphere. Sounds pretty reasonable to me. China signed on because it was exempt...the better question would be would they have signed on had they not been exempt? Hmmmmmmmm? The stream of bullshit emitted from the UN is nothing but fuel for smaller countries to put blame on the US for something or another.
      Well, you'll have a new whipping boy soon, and his name is China...and he doesn't give a fsck what the US, UN, EU, Amnesty Internation, et.al. thinks... Count on it!

    2. Re:Progress by stratjakt · · Score: 2

      Kyoto has nothing to do with the environment. Even the best estimates if it worked have it lowering our mean planet temperature of a couple hudredths of a degree over the next few centuries.

      Kyoto is all about redistributing wealth to other countries. Bush was right to reject it.

      --
      I don't need no instructions to know how to rock!!!!
    3. Re:Progress by vidarh · · Score: 2, Insightful
      Kyoto was a starting point, not the goal. As the US behaviour has shown, it was a fairly optimistic starting point. Trying to go further right away would have been counterproductive as it wouldn't have had a snowballs chance in hell of actually being supported by enough countries.

      Complaining that something isn't effective because it doesn't do enough isn't exactly a good reason to reject it - it's a good reason to adopt it AND push for going further.

  8. 2050 should be a interesting year by Class+Act+Dynamo · · Score: 5, Funny

    First the robots will win the World Cup then Iceland will become oil free. 2050 will be marked down for ages as a year of great change and upheaval.

    --
    My other computer is a Jacquard loom.
  9. Re:Hydrogen? by TheOriginalRevdoc · · Score: 5, Interesting

    True enough, but Iceland is unique in having ready access to more geothermal energy than they'll ever need. Not renewable, yes, but there's more of it around than they'll ever need, and it doesn't significantly contribute to CO2 levels.

  10. Iceland is the Saudi Arabia of the 21st Century by Ralph+Spoilsport · · Score: 4
    Why?

    Thanks to Iceland being basically one Giant Volcano, they've lots of Free Geothermal energy to make electricity and (bonus bell rings) it's surrounded by water. Put the two together and bingo: hydrogen.

    It's going to be funny to see the Icelanders, who are already an incredibly literate and well educated people, will do with all the loot.

    Personally, I look forward to our new Viking Overlords.

    RS

    --
    Shoes for Industry. Shoes for the Dead.
    1. Re:Iceland is the Saudi Arabia of the 21st Century by Ralph+Spoilsport · · Score: 3, Informative
      Sabinm completely missed the point in writing:

      I don't understand: WHAT exactly will Iceland be exporting that will make all of them billionaires? Saudi Arabia is rich not because it USES oil, but because it EXPORTS oil. Exporting hydrogen is stupid. exporting electricity is impractical. What they can export (for a limited time) is technical expertise and technology. That will only last until the quickest reverse engineer takes and improves on the process. The United states, Canada, Russia, and other countries of that size will NEVER run out of available energy: they have a magnitude of the same resources that Iceland has.

      Ummmm, no.

      They can export Hydrogen. Why? Because Iceland is mostly a rocky desolate volcano witha cold surface, and it is surrounded by a few thousand miles of the North Atlantic Ocean. The Volcano they call "home" provides the entire country with free electricity i nthe form of Geothermal energy. They are barely tapping the energy of the place. All they need do is exploit the geothermal energy to crack te water and make hydrogen, and then sell it to the Americans.

      Bingo. Instant Billionaires.

      The USA does have extensive geothermal sites - Yellowstone park is a perfect example. but if you turned that into a water cracking plant, every Greenie would come out of the woodwork and decry the loss of Yogi's wilderness. There are some other sites that have decent geothermal: Hawaii, Parts of CA and NV. But NV has no water, and where CA has geothermal is nowhere near the water.

      Iceland has both. In spades.

      It's really pretty simple math, really. Also: Iceland has a BIG incentive: their present main industry is fishing. As the fish stocks dwindle, they will need a new industry to pick up the slack. Cracking water will do nicely.

      Your notes re: the regs and patents is valuable, but beside the point. An even greater point beyond all that is the fact that there are too many god damn people and if we reduced population, none of this would be a problem. But that is also besides the point of the discussion.

      Go to DIEOFF.ORG for details.

      RS

      --
      Shoes for Industry. Shoes for the Dead.
    2. Re:Iceland is the Saudi Arabia of the 21st Century by anticypher · · Score: 4, Interesting

      sabinm so succinctly puts it "I don't understand"

      As someone living with an islandur, and having worked in Iceland a few times, there is a lot of 21st century products they can export. Knowledge, information, and beautiful women (and guys, supposedly, I'm no judge).

      Iceland has an amazing internet infrastructure and very cheap electricity. I'm always astounded when I visit, because everyone leaves the heat (100% electric) turned up 24 hours/day, leaves their computers on all the time, have broadband and use it as much as I do. Their electricity is about 3% the price of what I pay at home, basically close to free. If you live with an Icelander, its a constant battle to get her to turn off lights when leaving the room, keep the heat at a reasonable level and turn it down at night.

      On top of extremely cheap energy, they have good schools, excellent health care, and a standard of living supposedly the best in Europe (couldn't possibly be, beer is too expensive). The only downside is the constant rain and occasional snow. With fish stocks in the north atlantic dwindling, they are turning their skills towards information, the petroleum of the 21st century. Reverse engineering and process improvement are becoming their stock in trade, and slowly they are coming around to the idea they have to train up their young people to the highest level possible in fields like Information Science. The biggest problem is that when they send their young people to universities in Europe and America, there is a tendancy to stay abroad. They return when starting a family to take advantage of the social safety net that doesn't exist in places like America.

      Don't discount Iceland, they do have a political will to make significant changes, and a per capita GDP to make it happen.

      the AC
      I can't believe I'm defending Iceland on /.

      --
      Hemos is like...sci-fi fans;he thinks technology is cool, but he hasn't bothered to understand the science it's based on
  11. Re:Hydrogen? by Stevyn · · Score: 3, Interesting

    Yeah, it blew up just like an truck carrying gasoline would. Are you seriously trying to argue that hydrogen is not a good alternative fuel supply because a long time ago people decided to fill a huge balloon with it that had an extremely flammable outer skin while there was lighting shooting down from the sky?

    If this country (USA) wants to get off its coal, natural gas, and petroleum dependency, it has to build new nuclear power plants to power homes and use that to generate hydrogen to power vehicles. No new nuclear power plant has been built since the Three Mile Island incident, which similar to Chernobyl, was a combination of untrained workers and poor design.

    It's not a popular idea around here, but huge amounts of greenhouse gas and radiation could be saved from entering out atmosphere if we used more nuclear power.

  12. Geothermal is useful by Coryoth · · Score: 2, Informative

    It's the geothermal power that Iceland has in abundance that's a big help here. There's absolutely no shortage of it available. I guess the key is that Iceland has made full use of it for their energy needs. Not all countries have it quite so easy with readily available energy sources, making the 70% of energy needs from green power a little harder to attain. Then again, a few steps in the direction of energy efficiency could actually make significant impact in some of the countries guilty of rather conspicuous consumption when it comes to energy (not pointing any fingers or anything...)

    It is good to see countries taking positive steps though: if you have a surfeit of electrical power readily available, why not make the move to hydrogen powered transport? Hopefully a few other countries that are naturally well stocked in clean electricity generation (eg. those with a good supply of, for example, hydroelectric power) can make similar moves. The road ahead looks like it will be an interesting one.

    Jedidiah.

  13. Err .... by taniwha · · Score: 3, Funny

    wont this leave the streets full of exhaust (ice) in the middle of winter ...?

    1. Re:Err .... by balster+neb · · Score: 2, Interesting

      I got to ride on a Hydrogen bus in Perth, Australia recently. Even though it was a warm afternoon, there was a considerable amount of visible vapour trailing from the back.

      I was wondering, if a large number of vehicles on the road are hydrogen fuel cell powered, won't there be a big problem of the vapour affecting visibility for drivers? I wonder how that will be dealt with.

      Just a thought.

  14. Energy independence is a national security issue by Camel+Pilot · · Score: 4, Insightful

    Replacing foriegn oil imports is vital to continued economic growth and ensuring security for any nation or society. A country would be foolish to place their bets on a resource that is dwindling and susceptible to manipulation by foreign interests. The good news is that it is mearly a technical problem but the lead time requires planning and foresight - which in some unnamed countries is sadly lacking.

    Anyone interested this topic should checkout the Rocky Mountain Institute and read up on the ideas of Amory Lovins.

  15. Re:I hate the term "green power", article full of by TheOriginalRevdoc · · Score: 2, Interesting

    Most countries probably have at least some geothermal reserves, which could feasibly be used for power. For example, Australia isn't exactly known for its volcanoes, but we do have a major geothermal energy project under way:

    http://hotrock.anu.edu.au/cooper.htm

    And the geothermal energy doesn't have to be next door. I'm sure there are plenty of geothermal sites in North America. They may not be enough to supply the whole nation's ebergy requirements, but they might cover some of it.

  16. Re:70%? Impressive. by ackthpt · · Score: 5, Funny
    About 70 percent of Iceland's energy is already met by green power.

    One of the advantages of living on a geologically active island...

    Let us not explore too much the disadvantages.

    --

    A feeling of having made the same mistake before: Deja Foobar
  17. This is a big deal. by Baldrson · · Score: 2, Interesting
    With current technology, burning oil to make hydrogen to run a bus produces more pollution than simply running the bus on oil. Iceland sees itself as a testing ground, where almost unlimited heat from hot springs can be tapped for experiments.

    This is a big deal folks. Geothermal is quite abundant but it is relatively low grade energy. If you can get drilling costs down and figure out how to use the low grade energy along the lines the Icelanders are doing, you can not only resolve most subsistence energy problems, you can localize most food production for consumption in colder climates with articficial hot springs just as the Icelanders are doing.

  18. Re:Natural gas is the alternative source for Hydro by MaineCoon · · Score: 2, Funny

    And where do you get the natural gas from???


    TACO BELL!

    --
    Hunt your preferred prey at Aliens vs Predator MUD. Join the war at avpmud.com port 4000
  19. Re:I hate the term "green power", article full of by spellraiser · · Score: 5, Informative
    Actually, most of the energy needs in Iceland are currently met by good old hydro (as in water) dams rather than geothermal energy. Geothermal energy is almost the sole source of heating, though; 85% of heating needs are met by geothermal energy.

    Now, some people may debate exactly how 'green' hydro dams are, but they are certainly more green than fossil fuels. However, there is one strange twist here, which is somewhat offtopic: more than a few dams in Iceland, including a massive one that is currently being constructed at Karahjukar are erected for the exlusive purpose of providing power for aluminum smelters, which are not that green.

    Hydrogen generation is at least a noble attempt to use some of the available electricity for slightly more eco-friendly purposes, and surely causes less polution than fossil fuels if it is powered by hydro power.

    --
    I hear there's rumors on the Slashdots
  20. Re:Hydrogen? by schtum · · Score: 2, Funny

    Each bus costs almost 2 million dollars and probably contains enough explosive hydrogen to send one of the passengers into orbit

    As long as that seat is clearly marked, I see no problem with this.

  21. Very Small Country by FrankDrebin · · Score: 4, Informative

    While I commend the notion, Iceland has a unique feature not mentioned in the article -- an extremely small population. According to the CIA (spare the check-your-facts comments, thanks), it is currently less than 300,000 people.

    To put that into perspective, there are over 1200 CITIES in the world with more that 300,000 people. Seriously, more people live in Toledo than all of Iceland. As far as the Hydrogen economy goes, it's a start, but such a very small start. By 2050 I sure hope we're further along worldwide.

    --
    Anybody want a peanut?
  22. Re:Hydrogen? by chris_mahan · · Score: 2, Funny

    Actually, you could charge more. I hear people are willing to pay $20M US to get to orbit...

    This sub-thread is now officially closed.

    --

    "Piter, too, is dead."

  23. Global warming by Boccaccio · · Score: 3, Funny

    You'd think they would be the first to welcome a bit of global warming too wouldn't you?

  24. Re:Got a bet for you all by spellraiser · · Score: 2, Insightful
    You can't do that! Relations between us Icelanders and America have always been great. I mean, we're members of the Coalition of the willing and everything! You guys even have an army base over here, to protect us, seeing that we have no military of our own

    ...

    Oh shit.

    We're fucked, right?

    --
    I hear there's rumors on the Slashdots
  25. Re:Oil free by choice or coercion? by Wenalex · · Score: 2, Insightful

    Well, as long as we are judging things on the basis of "merit" we should calculate the true price of oil with all the extranalities involved in the equation and none of the tax breaks and subsides that the oil industry recieves. The external costs of the drilling, transporting, refining, transporting again, and then the end use of oil are incalculable. Consider things like an army to protect the oil at its source, how much does it cost to maintain the ships to transport this oil, what's the environmental toll payed in cleanup costs for every oil spell, the enormous rise in health care costs caused by polution, the money it takes to build roads, cars, etc... many of these costs would still persist in a 'hydrogen economy' but many not, and many would disapear if we would only learn the true cost of our consumption and then account for it. I'll have my 'oil-free' economy any day thank you.

  26. Re:I hate the term "green power", article full of by zenlunatics · · Score: 2, Insightful

    actually the "greens", or whatever they were called back then, having been recommending we find alternatives to fossil fuels for over 30 years (probably more). The problem is the powers that be don't want to listen because their power comes from their control of oil.

  27. Re:Hydrogen? by Rei · · Score: 3, Interesting

    Apart from the fact that the parent was trolling, I think it would be best described as "Every single time it is repudiated with a mixture of treating a widely controversial theory about the skin as if it's fact and a bunch of inaccurate statements about hydrogen chemistry and gasoline chemistry"....

    I mean, seriously people:

    1) Hydrogen *does* explode far more readily than gasoline. That's why it is the fuel of choice for deflagration to detonation transition experiments. That doesn't mean that everything with hydrogen is a waiting timebomb, but it is a fact that hydrogen is a relatively easy substance to detonate.

    2) The cause of the Hindenburg fire is still unknown, but it is *not* an open and shut case that the skin was the cause; there are a number of refutations out there for that theory which show that the skin, in fact, was not that flammable. Additionally, clearly on video, the hydrogen is burning; however, thanks to the properties of hydrogen, the flame tended to be carried up and away from the passengers. Also, thanks to the poor mixing and low pressure, it was a high intensity deflagration, not a detonation.

    3) Gasoline does not explode in the vast majority of situations (hydrogen and propane - gasses at STP - are much greater deflagration and detonation risks). Now, gasoline will burn hot and for long periods of time, which is it's own risk - but life isn't a hollywood movie where cars explode at the drop of a hat.

    4) Hydrogen is not this low-risk substance that you portray it as; if you don't believe me, read a manual of guidelines on how to deal with hydrogen some time. Hydrogen causes embrittlement of metals, collects under overhangs (and has been responsible for blowing many roofs off at research facilities), burns hot and invisible, leaks out of far smaller pinholes than other materials, tends to flow through plumbing if it leaks underground, and all sorts of other stuff that you don't want to happen.

    This doesn't mean that it can't be dealt with! But it's not some wondrously safe substance, either.

    --
    We're practicing our labials.
  28. Give them a chance people by NoNeeeed · · Score: 5

    Sometimes I really wonder about /.

    So far half the high rated comments have been either, "hydrogen isn't a fuel, it's an energy store", or "huh, how will they survive without plastic/lubricants etc".

    It's normally dangerous to generalise about /. contributors, but one thing that seems to be consistant is the over-riding negativity of the people here. People set noble aims (e.g. stop using oil) and all the armchair whingers can do is complain that it isn't a perfect solution, and it isn't here now; or in the case of anything Mac "I want it twice as powerful, free, and to have a time-machine built in, and it should run Linux". Some people just never seem to be satisfied.

    Hydrogen
    ---------
    No, hydrogen is not a fuel. Yes it is a storage medium. But more importantly it is an energy *transmission* system. It allows you to generate energy in one place, and then use it somewhere else. Ideally we would just send electricity down the power lines and store it in batteries in our cars, but until someone makes some serious improvements in the energy density of batteries, that isn't going to happen, and hydrogen remains one of the best alternatives.

    Yes you can use *dirty* methods of generation to generate the electricity you use to make the hydrogen, but at least you have the option of using clean methods where they are available. You can use what is appropriate. The Icelandics are using Geothermal, good for them. Until you take that step and move to using hydrogen, you don't have a choice over clean or dirty, you only have oil (for cars that is).

    "Green" Generation
    ----------------
    Another prime one for the "but I want it perfect and now, and with a pony" crowd. Every time someone mentions a method of power generation like wind, solar, or tidal, someone will go "but that won't work where I am so it's no good and we should just carry on using coal". I live in the UK, and lets face it, we are never going to get much of our power from the sun, but there is work going into building an increasing number of wind farms and experiments with tidal systems, because that is what we have. Most places have something they can use to generate power, the Icelandics are just lucky that they have so much. The Aussies have loads of sun, and Colorado (right state?) gets most of its power from hydro. You use what you have as the tech comes available.

    Plastics
    ------
    Stop being so unimaginative. There is absolutly no requirement to use oil in the production of construction materials. There are huge numbers of people and companies working on plant based alternatives. In fact the car industry has already started to use some of these for certain components. We can't produce all the materials we need yet, but we are getting better, and one by one the challanges are being overcome; science just tends to take a little while.

    The point (yes, there really is a point) is that all these things move us gradually towards a (slightly) better world. They might not get us there right away, but it's one step closer, and if all the whingers on /. and crappy TV comment show got off their arses and did something we might get there a little quicker.

    Another quick rant while I'm at it - Global Warming
    Everytime anything like this comes up on /., someone will go on about how there isn't really any evidence, and the climate was going to get warmer anyway. I don't need evidence for global warming, because I understand the theory. I don't need evidence for evolution because given my understanding of genetics, I cannot see how it can't be the case, evolution is the natural result of genetics and natural selection. Likewise, we know that CO2 and methane (the two major GHGs) cause a greenhouse effect. We know that without them the earth would be a lot colder, and that if we want to terraform Mars CO2 would be the first thing to put there. We also know that we are pumping out huge quantities of the stuff

    1. Re:Give them a chance people by tstockma · · Score: 2

      I strongly agree with this post. I live in Colorado, USA, we don't have much geothermal activity here. We do have a lot of wind, and some experimental windmills--hopefully that'll develop into windmill farms.

      Burning oil to create hydrogen for fuel might be a waste, but if Iceland is using geothermal heat sources to generate power, that seems to me a good thing.

      Each region of the world needs to use what they've got. Ocean tides, solar power, methenol from agriculture & city waste, whatever.

      So Iceland has loads of geothermal resources? OK, what's the problem if they decide to use that? I call that a world-leading approach.

      More power to them, IMO.

      --

      T Stockman

  29. Iceland's electricity is not primarily geothermal by Dipster · · Score: 2, Informative
    Geothermal energy supplies only 16% of Iceland's electricity. The primary source of electricity in Iceland is Hydro at 84%. Geothermal is only the major player when looking at total energy consumption, such as heating homes.

    It is electricity that is used to crack water into hydrogen, so to say that they are using something unavailable to the US is wrong. The US has tremendous Hydro potential, if you can get the damn tree-huggers out of the way...



    Reference: http://www.worldenergy.org/wec-geis/edc/countries/ Iceland.asp

  30. Re:Hydrogen? by Rei · · Score: 5, Informative

    Notice how both of the other replies to you used almost the exact same wording. ;) These people are all just citing the meme that originated with Addison Bain in the late 90s as if it were gospel truth - the Bain Incendiary Paint Theory (IPT).

    The funny thing is, it's been incredibly well debunked:
    http://spot.colorado.edu/~dziadeck/zf/L Z129fire.pd f

    The main issues:

    1) An electrical spark would not have had sufficient energy to ignite the paint

    2) Even if there were a spark, it couldn't have jumped in the required direction (Bain indicated that it only would have worked in one direction)

    3) The rate of burn of the paint is orders of magnitude too low (about 1000x), and is not "rocket fuel" by any standard. Even if it were coated with *real* rocket fuel, like used in the shuttle's SRBs, it would take 10 hours to burn. Instead, it took 34 seconds.

    They address numerous other points. For example:

    * You can very easily see that individual cells are burning and others not burning by the unnatural lines that the fire traces along the surface; they discuss where the cells are, and it becomes very obvious that the fire isn't spreading along the (quite continuous) surface but only spreading as new cells catch fire.

    * The "color flame issue" is nonsense, because even the earliest blimps (not coated with any similar material) burned with a similar appearance (the appearance is due to the burning of the skin at such high temperatures, making it act like a glow mantle of a gas lantern).

    * The tail remained level as one would expect given a huge updraft of the hydrogen that was supporting it previously and was now not only buoyant, but very hot

    * The panels were not electrically isolated from each other, as called for by Bain's guesswork

    * The Hindenburg had actually survived several lightning strikes in the past that burned right through the paint; plus, the Hindenburg, at the time of ignition, was wet (it was raining during approach, and was 98% humidity), making the paint even harder to ignite. The spark would have had to first vapirized the water, and then with the remaining energy ignited the paint (something lightning failed to do previously)

    * Electrical current takes the path of least resistance - i.e., over the wet surface, not through the fabric. The dielectric strength of the cellulose acetate is 100kV/cm; there's no way the current would go through it.

    * The energy needed to ignite the paint is 23 joules; one charged panel could have held a maximum of 0.01 joules. To get his sample to light, Bain used a bloody Jacob's Ladder on dry fabric, and even had trouble igniting it with that.

    * The very reason why there are so many scraps of Hindenburg fabric available to collectors (and people like Bain) is that, once it was lifted by updrafts out of the heat of the hydrogen fire, it was insufficient to keep itself burning.

    * The paint is continuous between cells (unlike Bain's mistaken conception that, because they used separate pieces of cloth, the paint wasn't continuous, and thus charges could build up). It was painted after assembly, across the whole surface.

    * The wet, continuous skin, by all effective means, would be an equipotential surface. Consequently, such a spark would be perpendicular to the surface, a situation that Bain couldn't even cause to light the fabric in the Jacob's Ladder - either from the airframe to the exterior, or from the exterior to the air (coronal discharge, i.e., St. Elmo's Fire)

    * The skin is not a "rocket fuel" because it has no oxidizer, which is critical to the rapid combustion of solid rocket fuels.

    * Cellulose acetate (which was used) burns (relatively) poorly in air, unlike cellulose nitrate (which wasn't used) out of concerns of saftey.

    * Solid rocket propellants, which it has been compared to, have about the burn rate of sparklers in atmospheric condition. However,

    --
    We're practicing our labials.
  31. Re:Hydrogen? by misleb · · Score: 2, Insightful
    Yeah, it blew up just like an truck carrying gasoline would. Are you seriously trying to argue that hydrogen is not a good alternative fuel supply because a long time ago people decided to fill a huge balloon with it that had an extremely flammable outer skin while there was lighting shooting down from the sky?

    That is the least of the reasons why hydrogen isn't a good alternative fuel supply. The main reason being that it isn't a fuel supply at all. It is a storage medium... and not a very good one at that. But I guess if you are swimming in geothermal energy like Iceland is, it makes more sense to waste some of the energy using hydrogen than it does to import oil. For the rest of us, oil is extremely convenient form of energy. All you need to do is pump it out of the ground and process it a little... and maybe go to war from time to time.

    If this country (USA) wants to get off its coal, natural gas, and petroleum dependency, it has to build new nuclear power plants to power homes and use that to generate hydrogen to power vehicles. No new nuclear power plant has been built since the Three Mile Island incident, which similar to Chernobyl, was a combination of untrained workers and poor design.

    Sorry, the "too cheap to meter" dream died a long time ago. Get with the times, man. There are more reasons than fear that keep us from moving all power to nuclear. Fossil fuels are just too damn convenient and still plentiful enough.

    -matthew

    --
    "THERE IS NO JUSTICE, THERE IS ONLY ME." -Death
  32. Ship it the old fashion way.... by emjoi_gently · · Score: 2, Interesting

    .... in a Zepplin, of course.
    It would make for a beautiful sight. Airships floating about the city, refueling the (literally now) Gas Stations.

  33. Yeah but ... by halfridge · · Score: 2, Interesting

    does it run on linux.

  34. Looks decieve... by Savage-Rabbit · · Score: 2, Interesting

    While I commend the notion, Iceland has a unique feature not mentioned in the article -- an extremely small population. According to the CIA (spare the check-your-facts comments, thanks), it is currently less than 300,000 people.

    Those 300.000 people also operate one of the biggest and most modern fishing fleets on the planet. In view of that fact being oil free by 2050 becomes a bit more challenging. Running cars on alternative fuels is one thing but extending that to deep sea trawlers and bulk cargo carriers is quite another proposition and that is precisely what they are thinking about.

    --
    Only to idiots, are orders laws.
    -- Henning von Tresckow
  35. Re:Hydrogen is a cruel joke by t_allardyce · · Score: 2, Funny

    Silence you eco terrorist! go and fill up your 16mpg tank like everyone else and like it. All this crap about an oil shortage is just some left wing conspiracy, we have enough oil to last a century.. if we invade and destroy every other country in the world by 2030. If you don't keep on buying lots and lots of stuff, our economy will crash - remember, patriots drive humvees and SUVs and go shopping every day! terrorists ride bicycles and 'recycle'.

    --
    This comment does not represent the views or opinions of the user.
  36. Current not confined to path of least resistance by Anonymous Coward · · Score: 4, Informative
    Electrical current takes the path of least resistance

    I'm not arguing one way or the other about the Hindenberg, but I would like to warn about misinterpreting this urban myth about the flow of electricity. In a parallel circuit (i.e., a circuit with different paths), electrical current will flow along all of the paths, the amount being inversely proportional to the resistance of each path. For modelling two or three dimensional objects, integrating over all of the different paths electricity can take to figure out how much current will flow through one region of an object versus another can be quite complicated.