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Tesla CEO Elon Musk: Fuel Cells Are 'So Bull@%!#'

Frosty P sends this quote from AutoblogGreen: "Elon Musk is unafraid to speak his mind. Whether he's talking about other players in the electric vehicle space or sub-par reporting from The New York Times, this is a man with few filters. Musk says that fuel cells are not part of the solution that electric vehicles offer for giving up the hydrocarbon addiction. After commenting that the only reason some automakers are pursuing hydrogen technology is for marketing purposes, that lithium batteries are superior mass- and volume-wise for a given range, and that fuel cells are too expensive, Musk capped it all off with the safety issue. 'Oh god, a fuel cell is so bull@%!#,' Musk said. 'Hydrogen is quite a dangerous gas. You know, it's suitable for the upper stage of rockets, but not for cars,' he said."

479 comments

  1. Hydrogen is indeed quite dangerous... by clonehappy · · Score: 4, Insightful

    In many regards, but especially to Mr. Musk's business model.

    1. Re:Hydrogen is indeed quite dangerous... by durrr · · Score: 5, Funny

      Hydrogen gas is quite safe, if a tank is just punctured, it will remove itself harmlessly from the vicinity.
      If the tank is ruptured and the gas set on fire, you might set a tree overhang on fire, but the car will avoid most of the damage. Unlike gas that pools under the car in a manner perfect for human BBQ.

    2. Re:Hydrogen is indeed quite dangerous... by Desler · · Score: 0

      Whoosh?

    3. Re:Hydrogen is indeed quite dangerous... by DavidClarkeHR · · Score: 4, Funny

      In many regards, but especially to Mr. Musk's business model.

      So, you're proposing that Tesla will face competition from a car that uses alternatives to alternative fuel?

      Hofstadter would be proud.

      --
      - Nec Impar Pluribus, or so I'm told.
    4. Re:Hydrogen is indeed quite dangerous... by lesincompetent · · Score: 4, Funny

      Hydrogen gas is quite safe, if a tank is just punctured, it will remove itself harmlessly from the vicinity. If the tank is ruptured and the gas set on fire, you might set a tree overhang on fire, but the car will avoid most of the damage. Unlike gas that pools under the car in a manner perfect for human BBQ.

      This message is brought to you by Ferdinand Graf von Zeppelin and Paul von Hindenburg!

    5. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Bull$#!^

    6. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 1

      Add to that just how well pressurized canisters are made. Propane has similar "oh God it's a vapour and will kill you properties". The tanks are bulletproof (yes, seriously, it takes excessively large ammunition and a lot of time to puncture a propane tank made to DOT specifications--these aren't BBQ tanks--and even then, they still don't explode).

      I would rather be in my propane car than any gas car any day in an accident. Heck, even the propane fuel line has an automatic shutoff (based entirely on the physics of it leaking out too quickly and nothing else, no electronics and no other feedback mechanism) should the line be ruptured.

      Even the filling mechanism (assuming you're not filling up at a several decades old pump with those silly bleeder valves, and that your tank isn't decades old and lacking an auto shutoff) is much safer than gasoline. The location of the tanks is even safer than gas tanks. They're rarely located underneath the vehicle, but rather in the cargo space (with proper direct external ventilation as required by law). The gasoline tank on my car, which they were still building just 2 years ago, is between the axle and trunk! Idiotic!

      The one thing that hydrogen does have as a more dangerous aspect is the lower and upper explosive limits. It's certainly easier to touch off than propane, gasoline, natural gas, etc.

    7. Re:Hydrogen is indeed quite dangerous... by RenderSeven · · Score: 4, Insightful

      You may be right, but then again a) Musk doesnt seemed very worried, and b) if good fuel cells became available he's in a better position than most to adopt them.

    8. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Just like the roof in Fukushima.

    9. Re:Hydrogen is indeed quite dangerous... by CanHasDIY · · Score: 4, Informative

      Did you forget the Hindenberg? Hydrogen can explode, as well as burn. Back to elementary chemistry for you Bubba.

      The cause of the Hindenberg incident has never actually been determined. Maybe do a little research yourself before launching the ad hominems, eh?

      Thanks for playing.

      --
      An enigma, wrapped in a riddle, shrouded in bacon and cheese
    10. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Hydrogen gas is quite safe, if a tank is just punctured, it will remove itself harmlessly from the vicinity.

      Yes, and no.

      The gas is fine, and there are decent ways of storing, but you are suggesting that it be stored in a pressurized tank? And that punctures are nothing to worry about? You're crazy, dude.

      The reason why pneumatics are so dangerous compared to hydraulics is that gasses do not depressurize instantaneously in a leak, so you can have a very dangerous invisible stream of pressurized gas, even before considering flammability.

    11. Re:Hydrogen is indeed quite dangerous... by ericloewe · · Score: 1, Informative

      Hindenburg.

    12. Re:Hydrogen is indeed quite dangerous... by borcharc · · Score: 0

      Musk's business model for building power-trains is safe but the whole cars based on lithium batteries is rocky at best. Tesla's charging system is a joke, having to go park in some far off small town and wait a hour for your car to recharge is not a solution to range anxiety. Maybe ultra capacitors could solve the recharge time/lithium battery issue, but I am unaware of anyone pursuing that. Hydrogen fuel cell powered electric vehicles have fast refill and long term will have better performance. As fuel cells are in continued development, I am unaware of any new game changing battery tech that will solve its limitations.

      Most commercial hydrogen is produced by reformation of natural gas (similar source as electricity). Personally I would rather just have natural gas powered cars until more cost effective methods of producing hydrogen are developed. The real game changer by Musk is showing how cheaply a car can be built in a modern automated facility, the majors and their unions should take notice.

    13. Re:Hydrogen is indeed quite dangerous... by SJHillman · · Score: 3, Informative

      Yes, it's so dangerous I remember them demoing it in elementary school. Indoors. Without so much as warning the fire department. They filled some balloons with hydrogen and then lit them with a match. It was so horribly explosive, students had to stay at least 10 whole feet away. So dangerous, you'd miss the fireball it if you blinked.

    14. Re:Hydrogen is indeed quite dangerous... by ShanghaiBill · · Score: 5, Informative

      Did you forget the Hindenberg? Hydrogen can explode, as well as burn. Back to elementary chemistry for you Bubba.

      The Hindenberg did not explode. It burned quickly, but most of the hydrogen burned outside of the frame. Of the 97 people on board, the majority survived. Many of those that died were killed by gravity, not heat. As long as your electric vehicle doesn't rely on hydrogen's buoyancy to keep it suspended hundreds of feet above the ground, you will likely be fine. The problem with hydrogen is not safety, but economics.

    15. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      spelling doesn't matter for transliterated names, as long as the english pronunciation is close enough to the original language.

    16. Re:Hydrogen is indeed quite dangerous... by boristhespider · · Score: 1

      Are you suggesting it's *not* stored in a pressurised tank? You'd travel about three foot on that amount of hydrogen.

    17. Re:Hydrogen is indeed quite dangerous... by SJHillman · · Score: 3, Funny

      In that case, I'm going to start calling it the Hyndinbourgh.

    18. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      The problem with hydrogen fires is that the flame is damn-near invisible, especially in daylight. You could set yourself on fire walking into the flame (from a leak, say) because you don't see it.

      I

    19. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 1

      Air-Fuel Cells *should* have the best of both the battery and ICE worlds:

      Unlike combustion engines, fuel cells aren't limited by the Otto cycle demand for high pressure = high efficiency. High pressures = heavier containment.
      Unlike batteries, air-fuel cells don't have to lug around their own oxidizers. Oxidizers are heavy. A typical car gas tank (15 gal / 45kg) needs 150 kg of oxygen to burn it. Getting that for "free" from the environment is a huge advantage.

      The basic physics makes a great case for fuel cells; it's just the implementation that's hard. Maybe someone will crack that design problem soon. On the other hand, the same is true for nuclear fusion.

    20. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Propane doesn't cause hydrogen embrittlement of the metal the tank is made of. Propane in the tank is also liquid, not highly pressurized (few thousand PSI) gas.

      Tanks for H2 need to be lined (which can wear out over time) or constructed of exotic (expensive) materials.

    21. Re:Hydrogen is indeed quite dangerous... by quantumred · · Score: 2

      Did you forget the Hindenberg? Hydrogen can explode, as well as burn. Back to elementary chemistry for you Bubba.

      The cause of the Hindenberg incident has never actually been determined. Maybe do a little research yourself before launching the ad hominems, eh?

      Thanks for playing.

      What? The fact no one is sure what sparked the fire doesn't invalidate his point that hydrogen can explode/burn.

    22. Re:Hydrogen is indeed quite dangerous... by HedRat · · Score: 1

      Oh, the humanity!

    23. Re:Hydrogen is indeed quite dangerous... by Grishnakh · · Score: 3, Informative

      Hindenburg isn't transliterated, it's German, which uses the exact same alphabet as English (with the exception of four additional characters). So spelling does matter.

      If you were talking about an Arabic or Chinese name, you'd be correct.

    24. Re:Hydrogen is indeed quite dangerous... by Grishnakh · · Score: 1

      The location of the tanks is even safer than gas tanks. They're rarely located underneath the vehicle, but rather in the cargo space

      Yep, that's the main problem with propane and LNG/CNG-powered cars. Since the big-ass tank is in the cargo space, you now have no more cargo space (or very little).

      In most modern gas-powered cars I've seen, the gas tank is underneath the rear seat: it's between the two axles, yet in a space where there's no other practical use for that space. Most car owners like to have a decent amount of cargo room.

    25. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      He might be saying that, yes. Check out the magic of chemistry:
      http://noscope.com/2005/hydrogen-pill-storage/

    26. Re:Hydrogen is indeed quite dangerous... by AK+Marc · · Score: 5, Informative

      The Hindenberg cause of ignition hasn't been determined, but hydrogen wasn't deadly to the people. It rises faster than it burns, so the flame front will go up as it burns, leaving those on the ground safe. And unlike nearly every other fuel, the combustion product is safe. Most people who die in home fires die from smoke. The "smoke" from hydrogen fire is water.

      "Hydrogen fires are notable for being less destructive to immediate surroundings than gasoline explosions because of the buoyancy of H2, which causes heat of combustion to be released upwards more than circumferentially as the leaked mass ascends in the atmosphere; hydrogen fires are more survivable than fires of gasoline and of wood. The hydrogen in the Hindenburg burned out within about 90 seconds."

      Hydrogen fires are some of the safest to be around. Most of the people inside on the ship at the time survived the Hindenberg disaster. The fire wasn't as deadly as many other transportation accidents with diesel or jet fuel or gasoline.

    27. Re:Hydrogen is indeed quite dangerous... by c-A-d · · Score: 1

      It is still pressurized to about 250psi (if I remember correctly from my LPG pumping days).

      --
      some karma... and kinda lukewarm about it.
    28. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      What propane tanks are you referring to? Bullet proof to what, paintball, BB, .22? Apparently you've never shot at steel targets before, nor with .223, .357, .44, .308, etc. Unless they're 1" hardened steel, you're right, it would take multiple shots. The liquid propane would still spray and dump all over the ground and as it vaporizes, still burn. For the same effect, take a can of liquid air, and slowly drip the liquid on to something. Eventually you can get a pool of the liquid on the table.

    29. Re:Hydrogen is indeed quite dangerous... by mythosaz · · Score: 5, Interesting

      Tesla's charging system is a joke, having to go park in some far off small town and wait a hour for your car to recharge is not a solution to range anxiety

      n.b. I own a Leaf.

      Range anxiety is real, but subsides pretty quickly when you realize that since your car tops off every day when you get home, you're rarely in danger of exceeding your range -- and that's true even for me, living in a suburb of Phoenix with it's massive sprawl.

      While you certainly need to conscious of your driving plans and charger locations, rarely do you have to divert to some far-away location. Most of the time you're driving your car, it's to work and back, or running errands, or out socializing -- and there's a pretty good chance that you're going to end up somewhere where there's a charger already in the front row waiting for you at your destination. There's 232 Blink chargers alone in Phoenix proper and over 500 in Metro Phoenix -- and that doesn't count chargers from the other companies.

      You don't go somewhere foreign to charge. You just top off occasionally while you're already doing what you're doing - many times for free.

    30. Re:Hydrogen is indeed quite dangerous... by Grishnakh · · Score: 2

      Musk's business model for building power-trains is safe but the whole cars based on lithium batteries is rocky at best. Tesla's charging system is a joke, having to go park in some far off small town and wait a hour for your car to recharge is not a solution to range anxiety.

      The Model S can go at least 200 miles between charges (depending on exact model, they have different battery packs available). Most people don't drive that far in a day, with the prime exception being road trips. Most people don't take a lot of road trips; they use their car for commuting and local travel. The charging system isn't a joke, it's a solution for those rare times that you want to take a road trip and would prefer to use your Tesla rather than renting a gas car to do it. Besides, what's wrong with waiting an hour? You need to stop for food anyway, so if you can recharge at or near the place you stop to eat, then you're not losing any time.

    31. Re:Hydrogen is indeed quite dangerous... by MightyYar · · Score: 3, Informative

      You don't need to transliterate it, it is written on the side.

      --
      W..w..W - Willy Waterloo washes Warren Wiggins who is washing Waldo Woo.
    32. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      So can gasoline. So can lithium-ion batteries. Basic physics for you: Anything with a high enough energy density to be useful for propelling vehicles is dangerous and capable of producing exothermic reactions.

    33. Re:Hydrogen is indeed quite dangerous... by c-A-d · · Score: 1

      They make LPG tanks that are designed to either fit in the same space as a flat tank or even to fit in where a spare tire would normally go.

      --
      some karma... and kinda lukewarm about it.
    34. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Much better reference:
      http://www.sciencedaily.com/releases/2005/09/050907102549.htm

    35. Re:Hydrogen is indeed quite dangerous... by CanHasDIY · · Score: 1

      Did you forget the Hindenberg? Hydrogen can explode, as well as burn. Back to elementary chemistry for you Bubba.

      The cause of the Hindenberg incident has never actually been determined. Maybe do a little research yourself before launching the ad hominems, eh?

      Thanks for playing.

      What? The fact no one is sure what sparked the fire doesn't invalidate his point that hydrogen can explode/burn.

      True; also true is that many people would cite a major disaster like the Hindenburg* in a discussion about hydrogen fuel cells purely as a scare tactic. And, you know - you shouldn't criticize someone else's lack of knowledge when yours is found wanting as well.

      * All for you, ericloewe!

      --
      An enigma, wrapped in a riddle, shrouded in bacon and cheese
    36. Re:Hydrogen is indeed quite dangerous... by rolfwind · · Score: 2

      While I hesitate pushing the mythbusters as conclusive (sometimes their scientific method is atrocious), I recommend watching their Hindenburg segment. Seems like it would have burned with or without the powder coating although that made it extra harsh.

      http://dsc.discovery.com/tv-shows/mythbusters/videos/hindenburg-minimyth.htm

    37. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      And the fire was due to the canvas skin panels being coated in a reflective paint made with aluminum and iron oxide. It landed during a rainstorm, shortly after passing through some clouds, and had undoubtedly built up quite a bit of static charge. The instant the tethering ropes hit the ground, it ignited.

      The hydrogen likely produced a quick pop-and-flash explosion of nearly zero consequence to the whole incident. You've probably seen one of these in a chemistry class. You get a test tube full of H2, hold the bunsen burner over it, and pull the stopper. Poof! It's a very tall, skinny flame caused by hydrogen rising quickly above the much heavier air mixture common to this planet, and catching fire along the way. The Hindenburg would've done the same, but on a larger scale. The hotter, ongoing flames were from thermite-shellacked canvas and the wood frame.

      If you've ever watched one of the (staged, in a "what if" manner) "fuel cell failure" videos, there's a tall, skinny jet of hydrogen flames blasting out of the trunk of a car, melting it, and burning out within about 15 seconds. Sure, it's dangerous. But it's far less dangerous than a pool of gasoline slowly evaporating on the blacktop on a hot summer afternoon. Or things coated in thermite.

    38. Re:Hydrogen is indeed quite dangerous... by rmstar · · Score: 3, Informative

      Hydrogen gas is quite safe, if a tank is just punctured, it will remove itself harmlessly from the vicinity.

      Not really. Among other things, the flame is invisible, which surprisingly is a major safety issue.

      Beyond that, the main problems are storing enough of it (because it is so light) for reasonably long times (because it leaks through normal metal tanks).

    39. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 1

      LOL since hydrogen has to be manufactured and stored at cryogenic temperatures, it's no threat to anyone's business model.

    40. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0
      That's such a stupid statement I have to sit down and take a few breaths here. Do you think the quantities of hydrogen for your balloon story and the amount needed for a car are comparable? I mean this morning I drank a glass of water, I guess that means I don't need a life jacket when I go fishing, right?

      Do you filter what you write at all? Maybe take a timeout before hitting submit?

    41. Re:Hydrogen is indeed quite dangerous... by Bengie · · Score: 1

      That wasn't hydrogen, that was a mixture of hydrogen and oxygen. Pure hydrogen does not explode.

    42. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      The problem with hydrogen fires is that the flame is damn-near invisible

      hydrogen fire: the weapon of choice for the ninja assassin

    43. Re:Hydrogen is indeed quite dangerous... by joe_frisch · · Score: 1

      not sure why this was listed as "funny". Its completely correct - considering the amount of energy stored, hydrogen is pretty safe. OTOH, hydrogen fuel cells do not seem like a good idea to me - no clear advantages over batteries.

    44. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      The cause is irrelevant. The result was a giant ball of flaming gas. It doesn't really matter what the cause is of your car's hydrogen fuel cell exploding into a giant ball of flame. When it happens, you're pretty fucked. Hydrogen gas is way more combustible than gasoline.

    45. Re:Hydrogen is indeed quite dangerous... by AvitarX · · Score: 1

      Don't fuel cells produce electricity?

      Good fuel cells would make his business model better off I'd think, taking away some barrier to electric cars.

      --
      Wow, sent an e-mail as suggested when clicking on "use classic" banner, and got a fast response that addressed my msg
    46. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      I don't think hydrogen fuel cell cars are going to keep their tanks above the roof of the car. You may have heard that heat travels upwards.

    47. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      And don't forget the part where they essentially coated the entire balloon in thermite.

    48. Re:Hydrogen is indeed quite dangerous... by Kylon99 · · Score: 1

      http://en.wikipedia.org/wiki/Hydrogen_safety

      Just adding some more details here.

      In general hydrogen is a much safer gas than typical automotive fuel such as gas or diesel. This is because hydrogen alone cannot combust and requires an oxygen source. Hydrogen storage is a bit safer too since it is lighter than air and floats up. You simply need to allow it to escape at the top and simple fanning lowers the hydrogen to oxygen mixture below the point of combustion easily. As opposed to gas which in vapor form still sits on the ground and requires much less oxygen to combust.

      And as you said if a tank is punctured and then ignited, it will burn outside the tank; it will not explode the tank, since the pure hydrogen inside cannot combust. The flame outside however does burn at a very, very high temperature and is invisible since it gives off photons in the ultraviolet wavelength.

      The problem with fuel cells however is the energy chain. Electrolysis is not a good way to create hydrogen because most countries, or at least the US cannot keep up with electricity demands (at least currently) should cars and other products be switched over. The primary way hydrogen is manufactured now, if my data is still current is through natural gas. And therefore this doesn't get us away from traditional carbon issues. The potential of hydrogen is possibly good intermediate storage, or at least another vector of energy research we can pursue.

      As for those people who say 'Hindenburg,' the problem with that, should they actually read the link they should know that the hydrogen cannot burn by itself and requires another source of oxygen. http://en.wikipedia.org/wiki/Hindenburg_disaster#Fire.27s_initial_fuel One of the theories implicates the iron oxide in the paint, and another speculates on a leakage of oxygen into the blimp. Although, as we saw the Hindenburg burned bright red, we know it was not the hydrogen burning by itself since it doesn't burn in the visible color spectrum.

    49. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 1

      Heisenberg?

    50. Re:Hydrogen is indeed quite dangerous... by TangoMargarine · · Score: 1

      Plus, y'know, the Hindenburg had about a hojillion times as much hydrogen in it as you would ever fit in a car...

      --
      Unity? Screw that: XFCE. Slashdot Beta? Screw that: SoylentNews. Australis? Screw that: Pale Moon. UX developers DIAF
    51. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 2, Insightful

      The problem is that when it gets out of the tank, it's not pure hydrogen anymore.

    52. Re:Hydrogen is indeed quite dangerous... by TangoMargarine · · Score: 2

      http://en.wikipedia.org/wiki/Hindenburg_disaster#Death_toll

      Well, 64% of those on board survived, yeah, which just makes it a somewhat inefficient way to kill people.

      --
      Unity? Screw that: XFCE. Slashdot Beta? Screw that: SoylentNews. Australis? Screw that: Pale Moon. UX developers DIAF
    53. Re:Hydrogen is indeed quite dangerous... by K.+S.+Kyosuke · · Score: 1

      In many regards, but especially to Mr. Musk's business model.

      Hydrogen is dangerous to Mr. Musk because Mr. Musk is full of hot air when talking about hydrogen, and as we know, hydrogen reacts with high-temperature air very eagerly.

      --
      Ezekiel 23:20
    54. Re:Hydrogen is indeed quite dangerous... by Grishnakh · · Score: 1

      That might work ok with LNG, but it won't work with propane(LPG) or CNG because the energy density of those fuels is so much smaller than gasoline or diesel. A spare-tire-sized tank of propane would probably get you about 20 miles I'm guessing. There's a reason cars retrofitted with propane and CNG tanks need a gigantic tank taking up the entire trunk space (or in a pickup truck, about 1/3 of the cargo bed). You need a much, much larger volume of those fuels to get the same range as a typical gasoline vehicle.

    55. Re:Hydrogen is indeed quite dangerous... by Andy+Dodd · · Score: 1

      Except that blimp hydrogen is at very low pressures.

      Storing hydrogen at sufficient energy densities for a vehicle is MUCH harder - it's at very high pressures AND hydrogen is notorious for causing metal containers it is stored in to become brittle. There has been some progress in terms of storing it chemically in hydrides, but overall - to store enough hydrogen for a usable vehicle, you're going to have what amounts to a highly pressurized bomb.

      --
      retrorocket.o not found, launch anyway?
    56. Re:Hydrogen is indeed quite dangerous... by kenshin33 · · Score: 1

      it can be obtained from water (Hydrolysis) no?

    57. Re:Hydrogen is indeed quite dangerous... by K.+S.+Kyosuke · · Score: 2

      In that case, I'm going to start calling it the Hyndinbourgh.

      I'm pretty sure that if you look at a map of England close enough, you'll see locals in that place already sharpening their pitchforks.

      --
      Ezekiel 23:20
    58. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Regardless of the cause it is safe to say that the Hindenburg's hydrogen load was the fuel for the fire, not magic beans. Maybe you should actually read what he wrote yourself. Nice try though.

    59. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 1

      Hindenburg.

      You're goddamn right.

    60. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      And unlike nearly every other fuel, the combustion product is safe. Most people who die in home fires die from smoke. The "smoke" from hydrogen fire is water.

      People die from water inhalation all the time. Your argument is invalid.

    61. Re:Hydrogen is indeed quite dangerous... by K.+S.+Kyosuke · · Score: 1

      Hydrogen fires are some of the safest to be around.

      With some rare exceptions, most of them involving seven people.

      --
      Ezekiel 23:20
    62. Re:Hydrogen is indeed quite dangerous... by Zynder · · Score: 1
      And in a fuel cell, the hydrogen is going to be mixed with what again? Not that I'm afraid of fuel cell explosions, but your nitpicking is based on crappy logic. I will point you to the AC you responded to:

      Do you filter what you write at all? Maybe take a timeout before hitting submit?

    63. Re:Hydrogen is indeed quite dangerous... by kenshin33 · · Score: 1

      The problem with fuel cells however is the energy chain. Electrolysis is not a good way to create hydrogen because most countries, or at least the US cannot keep up with electricity demands (at least currently) should cars and other products be switched over. The primary way hydrogen is manufactured now, if my data is still current is through natural gas. And therefore this doesn't get us away from traditional carbon issues. The potential of hydrogen is possibly good intermediate storage, or at least another vector of energy research we can pursue.

      how about creating it in the care using some kind of alternator to generate the electric current needed to for the hydrolysis?

    64. Re:Hydrogen is indeed quite dangerous... by boristhespider · · Score: 1

      That's cool, thanks

    65. Re:Hydrogen is indeed quite dangerous... by CanHasDIY · · Score: 1

      Hydrogen fires are some of the safest to be around

      Agreed. The worst thing I've ever seen hydrogen do was pop a lead acid battery. Which was kinda neat, until I noticed that the acid was eating through my clothing...

      --
      An enigma, wrapped in a riddle, shrouded in bacon and cheese
    66. Re:Hydrogen is indeed quite dangerous... by K.+S.+Kyosuke · · Score: 3, Informative

      Most of the time, the hydrogen for fuel cells is stored in form of metal hydrides. I don't think that it gets explosively released, even in case of a crash. It's not a pressure tank. It needs to get seriously heated (150 degrees Celsius?) from the *inside* first before the tank starts venting it.

      --
      Ezekiel 23:20
    67. Re:Hydrogen is indeed quite dangerous... by K.+S.+Kyosuke · · Score: 3, Funny

      Many of those that died were killed by gravity, not heat.

      Aircraft disasters don't kill people, gravity does! ;-)

      --
      Ezekiel 23:20
    68. Re:Hydrogen is indeed quite dangerous... by AK+Marc · · Score: 1

      And the fall was as deadly or more deadly than the fire. The fire just caused the fall, so it gets all the blame. There were worse disasters with helium airships.

    69. Re:Hydrogen is indeed quite dangerous... by X0563511 · · Score: 2

      What does that matter? Exactly how ignition occurred doesn't change the fact that it's easy to ignite, and once done it burns with gusto.

      --
      For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
    70. Re:Hydrogen is indeed quite dangerous... by X0563511 · · Score: 1

      Wow. I misread your comment -5- times in a row. Ignore me.

      --
      For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
    71. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      I didn't however make a fantastic fireworks show which is why the legend lives far longer than the facts.

    72. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Transliteration? German and English share the Latin alphabet, and there are no umlauts in Hindenburg. :P

    73. Re:Hydrogen is indeed quite dangerous... by cusco · · Score: 2

      You wear a life jacket when fishing? Wuss.

      --
      "Think about how stupid the average person is. Now, realise that half of them are dumber than that." - George Carlin
    74. Re:Hydrogen is indeed quite dangerous... by fredmosby · · Score: 1

      Unless the hydrogen leaks into your garage, or into the cab of the car, or into your car's trunk. In those cases it could be very dangerous.

    75. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Hydrogen gas is quite safe, if a tank is just punctured, it will remove itself harmlessly from the vicinity.
      If the tank is ruptured and the gas set on fire, you might set a tree overhang on fire, but the car will avoid most of the damage. Unlike gas that pools under the car in a manner perfect for human BBQ.

      Pure hydrogen indeed is, but:
      """The limits of detonability of hydrogen in air are 18.3 to 59 percent by volume"""

    76. Re:Hydrogen is indeed quite dangerous... by CanHasDIY · · Score: 1

      My favorite theory is the one with the German saboteur.

      Bit more romantic than "big fucking balloon randomly bursts into flames," don'tcha think?

      --
      An enigma, wrapped in a riddle, shrouded in bacon and cheese
    77. Re:Hydrogen is indeed quite dangerous... by Guspaz · · Score: 1

      I don't think "people blowing up passenger aircraft" can ever be called "romantic".

    78. Re:Hydrogen is indeed quite dangerous... by Desler · · Score: 1

      Who was claiming hydrogen doesn't burn? Oh right, no one.

    79. Re:Hydrogen is indeed quite dangerous... by ShanghaiBill · · Score: 2

      it can be obtained from water (Hydrolysis) no?

      Yes, but not efficiently. The round-trip efficiency for (H2O + elec) -> H2 -> (H2O + elec) is less than 50%. The round-trip efficiency for a lithium battery is better than 90%.

      Almost all hydrogen used by industry is generated by reacting steam with either methane or coal.

    80. Re:Hydrogen is indeed quite dangerous... by Guspaz · · Score: 2

      The hindenburg had about 202,000 cubic metres of hydrogen stored at atmospheric pressure. Wolfram Alpha tells me that would be 1.66 metric tons.

      Some googling turned up Toyota SUVs with an 800 kilometre range have a hydrogen storage capacity of 156 litres at 700 bar. Wolfram Alpha tells me that means the vehicle holds 6.1 kilos of hydrogen, or 0.0061 metric tons.

      By this reasoning, I determine that 1 hojillion = 1.66 / 0.0061 =~ 272

    81. Re:Hydrogen is indeed quite dangerous... by McKing · · Score: 5, Interesting

      A friend of mine was really interested in hydrogen as a fuel source for cars, to the point that he converted one of his half-dozen 80's Honda hatchbacks to a hydrogen-powered vehicle. He was a huge fan of hydrogen, until the day that he was working on his car and didn't realize that a fuel line had developed a pinhole leak and caught fire. Since the flame was invisible and he had no reason to be alarmed he reached into the engine compartment to work on something and passed his hand straight through the flame. It was only like a 1/2 second before he realized that his hand was burned and he yanked it out (seriously, it was like he smelled his hand burning before the pain hit).

      --
      If only "common" sense was actually that common...
    82. Re:Hydrogen is indeed quite dangerous... by Internetuser1248 · · Score: 5, Interesting

      Whoosh?

      That seems to sum up the vast majority of this thread, and the alternative energy debate in a very concise way.
      Let me take this opportunity to summarise the thread:
      30 pages of people arguing about the safety of hydrogen. 20 pages of people arguing about their opinions of Elon Musk.


      Let me now summarise the issue:
      A) Danger is not the issue, yes hydrogen tanks are dangerous, but we are talking about private transportation here. If we cared about safety we would have banned all of it decades ago. No one really cares if a few people get torn to pieces by a car.
      B) Hydrogen fuel cells are a bad idea because the production of hydrogen is hugely inefficient. The thermal efficiency is only about 50% and that is ignoring the massive compression that would be required for private transport, as well as distribution costs. This means hydrogen powered cars will use significantly more energy than other alternatives, energy that is generated in power stations, mostly through burning fossil fuels. The issue we have with cars is that they use too much energy. Neither Musk's electric cars nor any hydrogen technology currently on the market do anything to change this at all. It is all a huge PR lie so that all the happy consumers will feel good in the fluffy cotton wool illusion that they are saving the planet.
      C) Quit the celebrity worship, hundreds of people have quite clearly explained the pro's and cons of hydrogen fuel cells and we should not care more about this guy's opinion just because he is rich and famous. We could care about his opinion because he has a physics degree, but then again there are a great many people with physics degrees who have opinions on hydrogen fuel cells.

    83. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      This is what happened when a Dutch bus on CNG caught fire and some safety valve became a flamethrower:

      CNG bus on fire

    84. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Not to mention the many people who simply jumped for it, which was probably not a wise move.

    85. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Hydrogen provides a denser energy storage than batteries. Various hydrides can also store hydrogen in a way that is significantly less dangerous than just storing it as a gas.

      Of course, you are correct that hydrogen is safer than gasoline. But then people were afraid of "gas" over coal back in the day when gas became popular and was replacing coal heating systems. How many lives were saved by not breathing in coal particulates?? People are rarely rational.

      Finally, about hydrogen being "invisible", so is ethanol flame. Yet, somehow we do not view ethanol as super dangerous and use it in vehicles (even 100% ethanol).

    86. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Which requires electricity (a lot of electricity) for the amount of energy you get out. I think hydrolysis is produces about as much hydrogen energy as it takes to do the actual hydrolysis - so it's no more economically viable than just storing the electricity in the first place.

    87. Re:Hydrogen is indeed quite dangerous... by mattack2 · · Score: 2

      This message is brought to you by Ferdinand Graf von Zeppelin and Paul von Hindenburg!

      It wasn't the hydrogen that was the major problem.

      Go to
      http://www.pbs.org/wnet/secrets/previous_seasons/flash/flash.html

      click on The Hindenberg, and go through the little Flash info.. (Unfortunately, it doesn't seem like you can watch this entire episode online.)

    88. Re:Hydrogen is indeed quite dangerous... by tftp · · Score: 1

      Same with propane. Gases are like that. Time to switch to MK batteries. The only catch is that they are made on Mercury.

    89. Re: Hydrogen is indeed quite dangerous... by peragrin · · Score: 1

      Except the lithium stores a fraction of the energy and when lithuim goes well it makes hydrogen look like a sparkler.

      Chemical batteries don't have either the juice nor transfer rate needed for mass transit. I can get in my car and drive until it runs out of gas, refill, swap drivers and continue on in 10 minutes covering a thousand miles a day easy.

      Battery powered vehicles can't go 20% of that in a day

      --
      i thought once I was found, but it was only a dream.
    90. Re:Hydrogen is indeed quite dangerous... by TapeCutter · · Score: 4, Interesting

      I do find it interesting how every one has ran with the Hindenburg angle, you've gotta hand it to Musk, he knows how to pervert a conversation with spurious propaganda. WTF has the Hindenburg got to do with fuel cells? - This is Musk doing a Tomas Edison, except it's uncool to electrocute elephants as "evidence" that a competing technology is dangerous these days, so he picks an unrelated human tragedy instead as "evidence".

      The fact is Honda has a fuel cell car that is in many ways more practical than the cars he makes, and from a "save the planet" pov fuel cells are cleaner and simpler to scale up than batteries. Worse still for Musk Honda's car (and a cameo by it's owner, Jay Leno) was featured on the same Top Gun episode as the Tesla sports, he famously attempted to sue TG for an "unfair" review and was (rightfully) laughed out of court. Musk who is definitely smart and rich has decided the best way to compete with Honda has nothing to do with innovation, the best way to compete is to try and scare people by pulling horror stories from his arse..

      I like Musk's cars, but they are not "revolutionary" they are simply the state of the art in battery powered cars, which have been around for a century now. I won't be buying any of his stuff, even if I could afford it. The man is a greedy liar who thinks the only way to "win" is to drown the competition's reputation in bullshit and silence critics with a team of lawyers, behaviour I really do not want to encourage with my wallet.

      --
      And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
    91. Re:Hydrogen is indeed quite dangerous... by AK+Marc · · Score: 1

      Why do I feel like I'm missing some reference?

    92. Re:Hydrogen is indeed quite dangerous... by AK+Marc · · Score: 1

      Has anyone ever died by inhaling water vapor? Asphyxia from an H2 fire would be hard indoors, and impossible outdoors. And yes, I get that you were trying to be funny. You missed.

    93. Re:Hydrogen is indeed quite dangerous... by fredmosby · · Score: 1

      Hydrogen is explosive over a much wider range of stoichiometric ratios, so a hydrogen leak is more likely to cause an explosion than a natural gas leak.

    94. Re:Hydrogen is indeed quite dangerous... by dasgoober · · Score: 1

      I guess it would depend on how hot the vapor was, and if it could cause damage to the lungs?

    95. Re:Hydrogen is indeed quite dangerous... by Rockoon · · Score: 2

      also true is that many people would cite a major disaster like the Hindenburg* in a discussion about hydrogen fuel cells purely as a scare tactic.

      The fact that hydrogen is volatile was known when the Hindenburg flew. They said that it was quite safe before the disaster.

      Now here we are again, with people claiming that hydrogen is "quite safe."

      It is thus not any sort of fallacy or "scare tactic" to cite the Hindenburg disaster, that on the contrary the cite is that we've done the experiment where we use large quantities of hydrogen in the transportation sector already and we've got a result that tells us that hydrogen is by any meaningful measure not safe.

      Hydrogen in rocket launches? So long as there arent thousands of them per day, sure. In millions of vehicles used daily? Preposterous.

      --
      "His name was James Damore."
    96. Re:Hydrogen is indeed quite dangerous... by TapeCutter · · Score: 1

      BMW has a H2 tank that's certified by the EU regulators up to 20,000psi, they have had that for well over a decade now. Yes hydrogen does some weird shit, not only do steel containers become brittle, it will simply pass straight through normal steel at those pressures. BMW, Honda, et-al have a proven technology to handle those problems. Nothing is 100% safe but fuel cell technology is close enough that it has frightened Musk into making a fool of himself spouting this nonsense.

      --
      And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
    97. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      You obviously dont know much about hydrogen. When a tank ruptures...it self ignites. I know from working with this material as a fuel. Those of you saying it is safe need to understand that the pressures needed for hydrogen storage are a magnitude greater than things like NG. Ive had the displeaure to see first hand what an NG tank rupture is like. I assure you hydrogen is much worse. Not to mention sitting near a tank at over 20,000 psi makes everything in its path a deadly bit. /cannot believe you people think hydrogen is anything you want stored in a tank next to you.

    98. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Actually in a fuel cell the hydrogen and oxygen aren't mixed. They are on separate sides of a barrier impermeable to both hydrogen (molecular) and oxygen. Hydrogen ions (H+) are the only thing that can pass through, and the whole thing is typically dissolved in water (does hydrogen dissolved in water explode?) If anything explodes, it won't be the fuel cell.

      Musk's claiming hydrogen is dangerous by mentioning hydrogen fuel in rockets but is advocating for a technology with lithium - if you want dangerous, try dropping a chunk of lithium in water.

    99. Re:Hydrogen is indeed quite dangerous... by garyebickford · · Score: 1

      That would be an interesting trip.

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
    100. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Finally, about hydrogen being "invisible", so is ethanol flame.

      That's funny, I have no trouble seeing this ethanol flame whatever.

    101. Re:Hydrogen is indeed quite dangerous... by garyebickford · · Score: 1

      But rarely from steam inhalation, unless it's very hot.

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
    102. Re:Hydrogen is indeed quite dangerous... by garyebickford · · Score: 1

      killed by gravity

      It's not just a good idea, it's the LAW!

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
    103. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      How about bundling the hydrogen with, I don't know, carbon?

      Coercive tiered selling laws prevent us from offering a lower price for that package, but it is clearly a better deal. CMON.

    104. Re:Hydrogen is indeed quite dangerous... by garyebickford · · Score: 1

      Back in the day, some of my associates in the prototype test group used to play a prank based on this. They would fill one of those plastic film canisters that you used to get 35mm film in, by spraying the freeze spray used for testing electronics into it. If you keep spraying in the same place it gets so cold that it freezes. So you fill up the canister about 1/2 way with that, snap the lid back on, and quietly as you walk down the aisle, toss into the back of a terminal that someone is using/testing, that happens to have the cover off. A minute or two later, POP!! sounds just like a very big capacitor blowing up. Excitement and jollity ensue.

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
    105. Re:Hydrogen is indeed quite dangerous... by garyebickford · · Score: 1

      I worked on a near-shore oil (seismic) exploration crew a long time ago, which used high pressure air to blow calibrated bubbles in the ocean. The air was at 3500 PSI and was carried from compressor to 'guns' via 1/2 inch high pressure hose. One of the guys on the crew before I got there happened to be in the way when one of those hoses broke, and swung around spraying air at 3500 PSI. The air cut his arm right to the bone, as it passed by.

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
    106. Re:Hydrogen is indeed quite dangerous... by noh8rz10 · · Score: 0

      The issue we have with cars is that they use too much energy.

      who is we? the justice league? the borg?

    107. Re:Hydrogen is indeed quite dangerous... by brantondaveperson · · Score: 1

      Scary story. I wonder if some additive could cause the flame to burn with a colour, or would that impurity destroy the whole fuel-cell thing?

    108. Re:Hydrogen is indeed quite dangerous... by garyebickford · · Score: 2

      Many folks don't realize that hydrogen is not the only possibility for fuel cells; there are methanol fuel cells, ammonia fuel cells, and even some fuel cells that use diesel or kerosene (e.g. Cheap Diesel-Powered Fuel Cells). I think the last two use high temperatures (250C) to break the diesel or kerosene down to smaller molecules, then use those directly in the fuel cell.

      I suspect that for these types of cells, the key factors would be whether the fuel cell requires exotic or expensive metals like platinum, whether they can handle impurities in the fuel, and whether they can be used immediately or require some period of warm-up. In this case 'impurities' would be more chemistry than physical - for instance (just guessing) paraffins might be a very bad thing.

      High temp diesel cells might be good for long haul trucks or other vehicles that are likely to run all day, even including occasional stops. A battery big enough to run for the first 10 minutes might handle the quick startup issue.

      Of course, hydrocarbon based fuel cells don't solve the carbon dioxide issue. Perhaps there would be a way to recycle the CO2 back into a holding tank. But they would solve the noise issue!

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
    109. Re:Hydrogen is indeed quite dangerous... by HiThere · · Score: 1

      He doesn't need to worry as long as fuel cells require a platinum catalyst. He's right about the "expensive" part. OTOH, his other points aren't very convincing, and I've heard reports that a lab has an iron based catalyst that splits out hydrogen. It may not be practical, but then again it may. And I'm not real thrilled by large batteries. (I'd been hoping that supercondensers would have seemed more promissing by now...but the development seems to have stagnated, so they may have run into significant problems.)

      --

      I think we've pushed this "anyone can grow up to be president" thing too far.
    110. Re:Hydrogen is indeed quite dangerous... by LifesABeach · · Score: 1

      If Mr Musk is wondering where to find the Hydrogen required, he need only look to the west, and then to the east; there he will find the planet's two largest sources.

      And as an added bonus, by having cars generate water as exhaust, maybe our nation's forest fires won't burn quite so hot?

    111. Re:Hydrogen is indeed quite dangerous... by ebno-10db · · Score: 1

      Maybe you'd get there.

    112. Re:Hydrogen is indeed quite dangerous... by ebno-10db · · Score: 1

      I just realized how ironic it is that there are no umlauts in the word "umlaut".

    113. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Both explosion and burning of H2 requires the presence of O2. Explosion needs more than the presence of O2, but a stoichiometric mixture of H2 and O2 gas.
       
      I used to work on semiconductor reactors that would put the silicon wafers in a H2 atmosphere and heat them up to 1200C. With no Oxygen leaks, these reactors would not burn or explode, even at 1200C. Hydrogen is safe. Hydrogen and Oxygen together is not.
       
      This is all immaterial, because fuel cells can run on many different fuels besides hydrogen. Fell free to find a safer fuel and use that in a fuel cell instead.

    114. Re:Hydrogen is indeed quite dangerous... by Lumpy · · Score: 1

      So put the Hydrogen in a Glass Dewar bottle DUH!. Dont get embrittlement with those...... oh wait...

      --
      Do not look at laser with remaining good eye.
    115. Re:Hydrogen is indeed quite dangerous... by Lumpy · · Score: 1

      Thank god that cant happen with gasoline.... oh wait, it can and does.

      --
      Do not look at laser with remaining good eye.
    116. Re:Hydrogen is indeed quite dangerous... by Lumpy · · Score: 0

      Hydrogen can not explode or burn, that is a proven fact.

      Hydrogen mixed with oxygen CAN, but hydrogen on it's own is 100% impossible to light on fire or to cause to explode.

      --
      Do not look at laser with remaining good eye.
    117. Re:Hydrogen is indeed quite dangerous... by Lumpy · · Score: 1

      "Has anyone ever died by inhaling water vapor? "

      Yes, yes they can and have.. want a demonstration? inhale this steam at 300 degrees F.
      Lots of people died in steamworks by inhaling water vapor.

      --
      Do not look at laser with remaining good eye.
    118. Re:Hydrogen is indeed quite dangerous... by Frosty+Piss · · Score: 1

      I think the SKIN of the craft, made of aluminum powder and flammable bonding agents contributed to the Hindenburg demise.

      --
      If you want news from today, you have to come back tomorrow.
    119. Re:Hydrogen is indeed quite dangerous... by zippthorne · · Score: 1

      Tell that to these guys

      --
      Can you be Even More Awesome?!
    120. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      And if it's tightly compressed, it gets really really hot - about 24,000,000F.

    121. Re:Hydrogen is indeed quite dangerous... by Miamicanes · · Score: 1

      And then look at the big power plants you'll need, generally fueled by natural gas or oil, to cleave those dihydrogen monoxide atoms in half, then repackage the molecular hydrogen for high-pressure storage.

      That's the harsh truth. Fuel cells burning hydrogen electrolysized from water only makes even *theoretical* sense if the electricity itself comes from nuclear power... or your oil supply is literally cut off for political reasons, shale isn't an option, and you're desperate & burning coal. It's kind of stupid to burn ten gallons of oil to produce the net mobile energy that five gallons of oil would produce at the point of use if you refined it into gasoline.

      Fuel cells are an evolutionary dead end. They might have potential someday as emergency phone chargers (and WOULD have probably been a viable battery alternative for laptops on long-distance flights had it not been for 9/11), but cars really aren't one of their golden use cases.

    122. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      It's faster to pump in hydrogen to a depleted tank than it is to recharge a battery. That in itself can be a game changer even if it is inferior in other ways, especially as a transition technology for people used to quick refuels on oil technology.

    123. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      And what powers the alternator? You're getting into perpetual motion technology.

    124. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      energy density that actually provides adequate power to fuel a car? Being able to refuel in minutes rather than hours without having to swap your gas tank? The lack of reliance on rare earth metals and horribly toxic chemicals used in their production paired with a relatively short battery life? Would you like me to go on with clear advantages?

    125. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Yes it is. Which is more dangerous, hydrogen, or gasoline. There isn't a clear winner on which is more dangerous. Since they're similarly dangerous, then using them interchangeably isn't a ridiculous concept. The quantity of hydrogen crammed into a car would be FAR less than what was put in a blimp so that lowers the danger amount. I mean, how about I bring up oil well fires as to why gasoline is too dangerous to use in cars? Those are arguably much more dangerous than the hindenburg, just nobody was floating several 100 feet in the air at the time, which by the way, will be the case for cars.

    126. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      This must be some new definition of the word "safe" that I have not previously encountered.

      When a tank was ruptured and ignited at a chemical research lab I worked at in the 1980s, during an overnight fire, it acted like a 100 kg missile, smashed through six concrete walls, shot over the fire fighters, and disappeared. We think it ended up in a nearby lake.

    127. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 3, Insightful

      Well yes. The issue with cars is that they use too much energy. The efficiency from the chemical energy in a fuel tank in a combustion engine car to the wheels is about 15%. But the tesla has a efficiency, from battery to wheels, of 88%. and while there is efficiency loss from the power station to the charging point, at least a battery powered car opens up the possibilities of using clean energy sources to charge the car. A roof festooned with solar panels for instance.

      So the tesla model S uses a lot less energy, from much more varied sources of energy, and you say it does nothing to solve the problem that cars use too much energy? How about you know what your fucking talking about before you 'summarise' something.

      And quit with your accusations of celebrity worship. We dont care about his opinion because hes rich and famous. We care about his opinion because hes CEO of a company that has successfully brought a electric car to market, pretty fucking relevant to this discussion. Oh, while at the same fucking time founding a company that successfully built a orbit capable rocket. There are not a 'great many people' who have done that. And I sure as fuck care more about his opinion than yours.

    128. Re:Hydrogen is indeed quite dangerous... by InvalidError · · Score: 1

      The Hindenburg was a giant bladder coated with highly combustible thermite-like paint. Lots of surface area to let air in and mix with hydrogen to help it burn when something goes wrong and not much to prevent such a fire from spreading across the whole thing in record time.

      In a liquefied hydrogen system, the hydrogen would be stored in a thick steel or carbon fiber tank, which is a substantially different story. Those things would be around 10X thicker than scuba tanks.

    129. Re:Hydrogen is indeed quite dangerous... by borcharc · · Score: 1

      I don’t think you understand what range anxiety is, you do not appear to have a lifestyle that is impacted by it. I drive 3 hours away and back in the same day for visits with my ageing parents. If i had a tesla, I would have to spend the night at their house (at the cost of my sanity) as the car slow charges. I drive 40k miles a year with family visits, cross country trips for work when its cheaper or more practical the flying, etc. That is what range anxiety is, not fearing a trip around town. I do 20 hr trips regularly, they could not be done with 1hr recharge times. This is why lithium battery auto's will be limited to a slice of urban folks until charge time is no longer an issue or it is replaced by more effective tech.

    130. Re:Hydrogen is indeed quite dangerous... by quax · · Score: 1

      Since the other commenter just gives a link: Let's summarize:

      Since hydrogen burns upward most people fell to death in the Hindenburg inferno. Yet, 'till this day it colores the perception of hydrogen as a terribly dangerous fuel.

    131. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      The "smoke" from hydrogen is steam. Steam never killed anyone, ever, right?

    132. Re: Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      check out lithium batteries that get wet... i wouldnt day there to safe. ITM Power do much cheaper fuel cells as they dont use precious metals. The whole idea of the h2 econony is better health in cities. water vapour is by far better a byproduct than what u get from burning fossil fuels (which will run out).

    133. Re:Hydrogen is indeed quite dangerous... by bitingduck · · Score: 1

      Well said. Hydrogen is really no more dangerous than gasoline, which is quite flammable and in vapor form is quite explosive. The Hindenburg really gave it a bad rap, but that was due as much or more to the coating on the envelope as to the hydrogen.

      Your point B really is the key though, and as you say, it's an issue with all cars, largely due to what one might call "parasitics". The object of transportation is to move a masses of stuff from one place to another. For personal transportation we seem to have decided that it makes sense to move an additional few thousand pounds of vehicle in moving each few hundred pounds of person. That's a lot of mass to be accelerating and decelerating, and it tends to have a large cross section in the wind.

    134. Re:Hydrogen is indeed quite dangerous... by Pseudonym · · Score: 2

      Sigh. The harsh truth is that big power plants are a huge part of the problem. Loss in transmission and distribution in the developed world is around 6-15% depending on where you live and how you measure it. We still generate most of our energy using steam. Most of the heat disappears up flues, and then we use additional energy to heat our homes.

      Big central power plants are a stupid idea in the modern world. Lots of small CHP generators around residential areas and a few medium-sized generators around industrial areas make much more sense.

      --
      sub f{($f)=@_;print"$f(q{$f});";}f(q{sub f{($f)=@_;print"$f(q{$f});";}f});
    135. Re:Hydrogen is indeed quite dangerous... by nut · · Score: 1

      ... So long as there arent thousands of them per day, sure. In millions of vehicles used daily? Preposterous.

      Right. Because nobody in their right mind would ride around in vehicles powered by a fuel known to burn violently from the smallest spark or even explode when mixed with air.

      --
      Never trust a man in a blue trench coat, Never drive a car when you're dead
    136. Re:Hydrogen is indeed quite dangerous... by Technician · · Score: 1

      Do you get alerts when the charging station is vandelized by copper thiefs. The charging station condition is a cause of anxiety for me.

      --
      The truth shall set you free!
    137. Re:Hydrogen is indeed quite dangerous... by Technician · · Score: 1

      This is common in many locations. Public access, free copper.

      http://i1146.photobucket.com/albums/o538/shrink14/null-1.jpg

      --
      The truth shall set you free!
    138. Re:Hydrogen is indeed quite dangerous... by strack · · Score: 2

      combustion engine cars convert 15% of the chemical energy in their fuel into forward motion. The tesla gets 88% of the energy in its batteries in foward motion. Sure, theres efficiency losses in electricity transmission from a power station to a car charging point, but electric opens up the possibility of using alternative energy sources, like festooning your roof with solar panels and charging with those. the tesla uses energy over 4x more efficiently, from more sources, and you say that dosent change anything? Your wrong, and you should stick to 'summarizing' things you know something about. and we care about his opinion because he heads a successful electric car company. pretty fucking relevant if you ask me. more relevant than your opinion.

    139. Re:Hydrogen is indeed quite dangerous... by AK+Marc · · Score: 1

      Hot air has killed more than steam. Doesn't mean we should consider all air dangerous.

    140. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Define 'pure'... I remember reading somewhere that the only problem diving on hydrogen is that its explosive when mixed with oxygen at high pressures, my guess is that filling stations can get really dangerous if some oxygen gets in the tank.

      but then again, I'm no expert on gasses. well, not the kind that can move a car... I know there's a joke here...

    141. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 1

      Well, there's a simple way to avoid all this discussion about safety:

      Just use HELIUM!

      Seriously, have we not learned from the Hindenberg?
      I'll start work on the helium fuel cells straight away.

    142. Re:Hydrogen is indeed quite dangerous... by Miamicanes · · Score: 1

      Well, it depends. Big oil-fueled power plants serving a large, sparse area are probably counterproductive. Nuclear plants are pretty much stuck with economy of scale, because it's the only way they can be operated cost-effectively. I have a friend who works in the nuclear power plant industry worldwide, and he did a pretty good job of disillusioning me about pebble bed reactors (which are the usual solution proposed to the scale problem).

      The specific problem with pebble bed reactors is that they might not be capable of having a traditional meltdown, but they're NOTORIOUS for producing some of the most toxic radioactive waste ever seen outside Chernobyl's sarcophagus... waste that's not only intensely radioactive, but CHEMICALLY reactive & incredibly corrosive as well. And apparently, nobody has ever come up with a safe way to actually decommission a retired pebble bed reactor, besides burying it under a mountain of concrete for eternity. Once they're built and fired up, they're going to be occupying that site for centuries, because any clean-up and removal effort would be too dangerous (to both the workers and surrounding community) to even contemplate.

      The best thing the US could do is just replace our existing reactors with newer, more modern ones. Nuclear fission is nasty, but it's the best thing we *have*, and the best thing we're *going* to have for a really, really long time. Even IF we get fusion to work, fusion is something that needs even larger economies of scale than fission... and making the southeastern United States (Florida, Georgia, Alabama, and South Carolina, plus one or two more states) dependent upon a single vast power plant would be utter suicide, because anything from a parade of hurricanes to a terrorist attack on power lines could cause a blackout affecting 50 million people unless the gas-fired regional plants were maintained... and staffed... which would then negate most of the benefits of the fission plant.

    143. Re:Hydrogen is indeed quite dangerous... by Internetuser1248 · · Score: 0

      but electric opens up the possibility of using alternative energy sources

      I understand that in the wonderful utopian future we will all have as much energy as we want. My argument was referring more to the actual reality of now though. Your battery to wheels efficiency statistics conveniently left out the efficiency of the coal power plant that charged the batteries. I did however clearly refer to power production in the post you were replying to so the only kind assumption is that you are just pretending to be ignorant.

      While on the subject of future fantasy technologies that will solve all our transportation problems: I am a big fan of building a world wide teleporter network. Oh and a space elevator.

    144. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      It is an active area of research.

      http://en.wikipedia.org/wiki/Hydrogen_vehicle#Storage

    145. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      In many regards, but especially to Mr. Musk's business model.

      Will someone please Re-Attatch the muzzle on musk's fisogg twat .

    146. Re:Hydrogen is indeed quite dangerous... by Internetuser1248 · · Score: 1

      The Borg of course, their transportation costs are astronomical. The justice league only have a few vehicles and their budget easily covers the fuel costs.

    147. Re:Hydrogen is indeed quite dangerous... by Hypotensive · · Score: 1

      Don't store it in metal tanks then...

    148. Re:Hydrogen is indeed quite dangerous... by AK+Marc · · Score: 1

      The largest single airship disaster (by measure of number dead, not size of fireball) was on a helium ship. But measure of ships built from each and deaths, it looks like H was safer than He.

    149. Re:Hydrogen is indeed quite dangerous... by ameen.ross · · Score: 2

      Your battery to wheels efficiency statistics conveniently left out the efficiency of the coal power plant that charged the batteries.

      I was interested in your arguments up until this. The car batteries are charged by the grid, which can be powered by other energy sources than coal. In The Netherlands, for example, around 10% of energy comes from renewable sources, of which the largest contributors are biomass and wind. This excludes nuclear and imported energy, and production has been growing rapidly for the past decade.

      Even if the grid was powered by 100% coal, then coal plants on average reach an efficiency of 28%, while high efficiency plants reach 45%. Both significantly better than internal combustion engines. http://www.worldcoal.org/coal-the-environment/coal-use-the-environment/improving-efficiencies/

      --
      $(echo cm0gLXJmIC8= | base64 --decode)
    150. Re:Hydrogen is indeed quite dangerous... by MichaelSmith · · Score: 1

      So don't be above a burning hydrogen fuelled car...

    151. Re:Hydrogen is indeed quite dangerous... by Lennie · · Score: 1

      For personal transportation we seem to have decided that it makes sense to move an additional few thousand pounds of vehicle in moving each few hundred pounds of person.

      Funny thing you mention this, there is a rise in the use of electric bicycles. Especially in countries that have infrastructure that can bicycles.

      So some people are starting to understand this, or maybe it's just more economical.

      --
      New things are always on the horizon
    152. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Well be thankful there isn't any oxygen just floating around, then.

    153. Re:Hydrogen is indeed quite dangerous... by Hognoxious · · Score: 1

      I've done that, taking the battery off the charger when I was very hungover. Some of it went in my mouth. Umm, sour. Sour? Acid!

      At that point I woke up and jumped in the shower (where there was a convenient supply of alkaline substances) PDQ.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    154. Re:Hydrogen is indeed quite dangerous... by Lennie · · Score: 1

      How about really, really cheap solar ?

      Supposedly solar power is on a similar, exponential improvement curve as Moore's law for computer chips.

      That would make solar power, thus electricity, ridiculously cheap by 2020. That is only 7 years from now:
      http://www.youtube.com/watch?v=nEWLjVmweoE

      We all know solar and wind need a storage system, but batteries are not cheap.

      Hydrogen is not really efficient, because you probably want to compress it which takes energy.

      But what if energy was dirt cheap ? Would that make hydrogen viable ?

      I don't know if we would use hydrogen in the car or if we'll only store it where/when the electricity is generated and transfer it to the car when needed.

      I don't even know how expensive the components for hydrogen are. I probably can't predict what the price of batteries will be in 2020 either.

      --
      New things are always on the horizon
    155. Re:Hydrogen is indeed quite dangerous... by tricorn · · Score: 1

      We all know that Lithium isn't flammable at all, and Li-ion batteries never catch fire.

    156. Re:Hydrogen is indeed quite dangerous... by MichaelSmith · · Score: 2

      I guess my bicycle is not for you either but there is no reason to be anxious about it. You pick the tools which fit your requirements.

    157. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      This is because hydrogen alone cannot combust and requires an oxygen source.

      Well then, I guess it is lucky that Oxygen is so rare and not all around us in the atmosphere.

    158. Re:Hydrogen is indeed quite dangerous... by RaceProUK · · Score: 1

      The former was a fault with the SRBs, which uses a mixture a lot like thermite. So no molecular hydrogen there. The latter was a build-up of heat entirely caused by friction.

      --
      No colour or religion ever stopped the bullet from a gun
    159. Re:Hydrogen is indeed quite dangerous... by Real1tyCzech · · Score: 1

      The car isn't burning. That's the point. The air above the car is...

    160. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 1

      "I don’t think you understand what range anxiety is"

      Neither do you. You aren't suffering from range anxiety, you're suffering from the delusion that this was marketed in any way shape or form at you.

    161. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      In scotland at least, most use gas central heating or oil fired central heating which burns the fuel at point of delivery for heat.

    162. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      So, you are suggesting the hydrogen in the blimp played no role in what happened? Just to be clear... if the blimp was full of a completely inert gas, it would have played the same way?

      Now, how it started may be at odds, but I think most are sure the hydrogen did most of the damage. How much airship was left by the time it hit the ground?

    163. Re:Hydrogen is indeed quite dangerous... by bluefoxlucid · · Score: 1

      Yep. You're going to have a hell of a lot of fuel loss. In transit, you need to refrigerate the hydrogen, and some will still leak. Then in storage (fuel station, car fuel tank) it's going to need refrigeration, and will leak. A lot of fuel will be lost to leaks; and a lot of energy will be put into refrigerating the fuel continuously. It's so bullshit.

    164. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Now show me how to pour a new tank of lithium into that battery. We need to be back on the road in two minutes, to be at hour destination on time.

    165. Re:Hydrogen is indeed quite dangerous... by Teancum · · Score: 2

      In many regards, but especially to Mr. Musk's business model.

      I would say that Elon Musk likely forgets more about hydrogen and fuel cells than you or most people on slashdot will ever learn. SpaceX clearly uses hydrogen as a fuel source, and the use of hydrogen fuel cells dates back to the Gemini program and was used in every single manned NASA mission except for the Mercury flights (which used sealed batteries for power). SpaceX engineers have most certainly looked into its use.

      I'll also note that Tesla doesn't really care if fuel cells work or not in terms of them being a potential power source for the motors. That is the cool thing about using electric motors is that the fuel source can be uncoupled from the drive line. It simply doesn't matter how that electricity is generated, just that it is generated in the first place. The trick is to figure out how to store that electricity temporarily until it is needed on a vehicle. Besides, I don't see Elon Musk advocating that a bunch of solar panels cover the top of every Tesla vehicle (and sadly Tesla has been forced into making a formal statement about that idea too).

      Heck, there are enough people who think perpetual motion machines actually work that it isn't surprising more critics show up to hammer on Musk with this.

    166. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      I guess that many of you have had no training in Hydrogen fires. Or seen the requirements for a hydrogen system. The system proposed is neighbor hood storage of hydrogen at a gas station. Hydrogen, a dry gas, produces its own ignition source, by static, movement, as the gas passes by its opening, the gas can and usually produces it's own discharge spark, unless compressed as a liquid, where it will discharge it spark. It's worse then dry air and cats. Next check out the flame color, and the flammable limits. At least alcohol burns with a contaminant color. And you expect joe firefighter to walk into this to save your sorry asses.
      Remember, electrical, can recharge at home, Natural gas, low pressure hard to get to burn, Gasolene easy to store, and dispense, Hydrogen has none of these uses, or applications, but mix it right and you have the other stuff. So maybe they could change the formula, and create some system that woould catalyze the hydrogen from some other substance...

    167. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Nothing burns by itself, life is a fire albee it slow. Rust is fire. Hydrogen is not stored as a gas, its losses are gigantic, even thou the system is closed. Early tests at white sands say so, along with the early goddard tests in michigan. So that means liquid rechargable? When a liquid, will crawl over a container wall, by expansion,
      Having walked by a small pool, that stuff is cold, worse the the LNG, that blevies. So the instantious cold will kill first, before the blevie heat bakes you away. Love it. Having been thru small backdrafts before, knocked off the feet several times, lovely.

    168. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      So more smaller power plants, bring the power plant to the neighborhood? More pollution to the local people? More construction cost and maintaining cost to the local user? Almost as interesting as the household reactor.

    169. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Li-ion batteries are also quite dangerous, as evidenced by by one of their own vehicles... thermal runaway is quite nasty... ...anyways pure electricle vehicles are a dead end. Limited storage(i.e. range, usable if you only have to go 100m every day guaranteed) even with quick recharge time, you're not likely to find a handy dandy recharge station out in the boonies meanwhile, if they have propane, they'll probably have H as well...

      Not to mention that not all fuel cell research is purely based on relying on converting pure H, but general hydrocarbons(and other "fuels") which would really be the ideal solution.

    170. Re:Hydrogen is indeed quite dangerous... by LifesABeach · · Score: 1

      As long as the sun shines, and the wind blows, that is a energy source were technology exists that one can access it; plus, as knowledge increases, other techniques for sun and wind will become cheaper. Using both sun, and wind to separate hydrogen starts to make sense; it's not free, but rationalization of other methods becomes an excuse. But one can look at the "bright" side, as fossil fuel energy solutions continue to climb, and sun/wind solutions continue to decline; break even point will occur, then after that, energy from fossil fuels will become an inconvenience.

    171. Re:Hydrogen is indeed quite dangerous... by mythosaz · · Score: 1

      I don't think you understand what range anxiety is.

      You definitely don't.

      You're saying that you've got a 6-hour drive and need a vehicle that can do that without needing fuel. That has nothing to do with range anxiety.

    172. Re:Hydrogen is indeed quite dangerous... by mythosaz · · Score: 1

      Despite the other reply, it seems a strange cause of anxiety. I've 0-for-lifetime in seeing a vandalized charging station -- but I'm sure they happen.

      ...but yes, even if copper theft and station vandalism is a problem is your region/neighborhood, you can see the status of charging stations (available, offline, in-use) from your car's navigation/information system, and from a variety of web and smart-phone apps.

      Remember, unless you're driving >90 miles freeway in your Leaf before getting home, or >200 miles freeway in your Tesla without stopping a relatives house (where you can just plug into the wall), you don't need a public charger.

      The primary role of public chargers is simply topping off to ease range anxiety.

      I know, at a glance, that the nearest public charger to me is online, operational, and has two (of two) stations open.

      https://www.blinknetwork.com/blinkMap.html#

      There are maps that aggregate both Blink chargers and other networks - but Blink is probably 80% of the ones here and have a nice interface. The in-dash information system gets real-time updates as well, and even will route you to a nearby charger if the battery is low. [It's moderately obnoxious about it...]

    173. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      So true,
      Economics is a driving factor in everything, and yet sometimes people choose to ignore it, often till you have a situation like there was in Greece.

      Usually, for density of hydrogen reasons, it is stored in a metal hydride -which store far more gas per square inch at a much more reasonable temperature, and is far safer than liquid hydrogen.

      Of course the downside of this is that metal hydrides are heavy, and once the gas is out of the hydride (eg before going into a fuel cell) it is flammable again of course, and then there are all of the issues with Fuel Cells. (Breakdown of the electrolyte, vapor lock, functional loss due to impurities etc).

      They have their uses, but it is difficult to believe that they will ever reach the same utility(economic version of the word) in a car that a battery can reach (though frankly many people were saying that about batteries before Musk came along and made it feasible).

    174. Re:Hydrogen is indeed quite dangerous... by KevReedUK · · Score: 1

      Hot air has killed...

      [Insert your favourite joke about politicians here!!!]

      --
      Just my $0.03 (At current exchange rates, my £0.02 is worth more than your $0.02)
    175. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      he famously attempted to sue TG for an "unfair" review and was (rightfully) laughed out of court.

      You misplaced your quotes. The line should read:

      he famously attempted to sue TG for an unfair "review" and was (rightfully) laughed out of court.

      The reason he lost in court was not that the review was not unfair, but that the show did not have a legal obligation to provide an unbiased review. There is no question that what Top Gun did was unfair. It just wasn't legally actionable as slanderous.

    176. Re:Hydrogen is indeed quite dangerous... by KevReedUK · · Score: 1

      I remember reading somewhere that the only problem diving on hydrogen is that its explosive when mixed with oxygen at high pressures

      Diving on hydrogen??? And the only problem you see is that it can be explosive when mixed??? How about suffocation (or do you not consider that a problem)?

      --
      Just my $0.03 (At current exchange rates, my £0.02 is worth more than your $0.02)
    177. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      And quit with your accusations of celebrity worship. We dont care about his opinion because hes rich and famous. We care about his opinion because hes CEO of a company that has successfully brought a electric car to market, pretty fucking relevant to this discussion. Oh, while at the same fucking time founding a company that successfully built a orbit capable rocket. There are not a 'great many people' who have done that. And I sure as fuck care more about his opinion than yours.

      I'm sorry, but you pretty much confirmed the accusations of celebrity worship. None of the achievements you cite have any bearing on his authority to speak on the safety of hydrogen or fuel cells. He may know a little about using straight hydrogen as a fuel if that is what his rocket uses, but unless he engineered the system himself, it would be more relevant to hear the opinion of one of his engineers. More importantly, since we are talking about fuel cells, there is no reason to pay any attention to him over an engineer who has worked on such systems other than his celebrity status.

    178. Re:Hydrogen is indeed quite dangerous... by Dyolf+Knip · · Score: 1

      If solar energy were dirt cheap but batteries were still for shit, then yeah, using H2 as a storage medium wouldn't be so bad. However, both PVCs and batteries are getting better all the time. The latest lithium-air batteries actually have the same energy density as gasoline. H2's density is still better of course, but has a host of storage problems that make even a lesser storage system more appealing.

      --
      Dyolf Knip
    179. Re: Hydrogen is indeed quite dangerous... by Dyolf+Knip · · Score: 1

      http://en.wikipedia.org/wiki/Lithium_air_battery

      > A lithium-air battery has an energy density (per kilo) comparable to traditional gasoline

      It's still got problems to overcome, but the point is, battery storage is only getting better.

      --
      Dyolf Knip
    180. Re:Hydrogen is indeed quite dangerous... by Dyolf+Knip · · Score: 1

      So true. I was very surprised to learn that lithium batteries have an energy density in the same ballpark as gunpowder and dynamite. Small wonder that one of them cutting loose and letting all that power go at once is a big deal.

      --
      Dyolf Knip
    181. Re:Hydrogen is indeed quite dangerous... by Dyolf+Knip · · Score: 1

      It's the latest SI prefix.

      --
      Dyolf Knip
    182. Re:Hydrogen is indeed quite dangerous... by MA179 · · Score: 1

      Or inside the passenger compartment. Don't get me wrong, batteries burn too. But we shouldn't close our eyes to the real world. Almost any flammable gas or vapor is "safe" if it's in an open or well vented area. You just don't get the concentration levels you need to make it dangerous. But in the right environment, like the enclosed area inside a car, even sawdust (airborne) is a big problem. Remember, hydrogen is odorless and colorless, a leak could result in a flammable or explosive concentration inside a vehicle before anyone even notices. And before someone says it, sure add an odor, I'm sure that will do wonders for the efficiency of a fuel cell.

    183. Re:Hydrogen is indeed quite dangerous... by KevReedUK · · Score: 1

      I do find it interesting how every one has ran with the Hindenburg angle, you've gotta hand it to Musk, he knows how to pervert a conversation with spurious propaganda. WTF has the Hindenburg got to do with fuel cells? - This is Musk doing a Tomas Edison, except it's uncool to electrocute elephants as "evidence" that a competing technology is dangerous these days, so he picks an unrelated human tragedy instead as "evidence".

      Erm... Musk wasn't the one bringing up the Hindenburg. To be fair, the comparison was not (originally) invoked by the various commentators in this forum. I have watched the full video at the link. My understanding of the German language is slightly rusty, but Musk was only speaking in English anyway! Musk's criticism of Fuel Cell was based on comparing relative energy densities and efficiencies between projected Fuel Cell tech and current Li-Ion battery tech, with an afterthought suggesting that Fuel Cells are suitable for rocketry, but even then, rocket disasters were not even mentioned. He presented a marketing-speak case for why Fuel Cell tech is only proposed by companies for marketing reasons (which, in itself, is somewhat hypocritical!). That being said, the whisky salesman who introduced the video DID invoke the Hindenburg disaster. Maybe this is where some of the confusion is coming from?

      Oh... who am I kidding...? This is /. where no-one reads the summary, let alone the linked article, much less listening to a nearly 40 minute multi-lingual clip!

      --
      Just my $0.03 (At current exchange rates, my £0.02 is worth more than your $0.02)
    184. Re:Hydrogen is indeed quite dangerous... by Real1tyCzech · · Score: 1

      Hydrogen will travel right on through the roof of the vehicle. it couldn't get trapped even with all the windows up and the molding around them brand new.

      Regardless; Natural Gas is odorless and invisible as well, but we fixed that, didn't we?

    185. Re:Hydrogen is indeed quite dangerous... by mcgrew · · Score: 1

      Hofstadter would be proud.

      Richard, Douglas, or Leonard?

    186. Re:Hydrogen is indeed quite dangerous... by im_thatoneguy · · Score: 1

      and c) Tesla had no legacy needs when he set out to create an alternative energy vehicle. People are acting as if Musk has a huge vested interest in batteries before Tesla. He does *NOW* but Tesla is only a couple years old. Why would he have invested so much in Batteries if he could have chosen Hydrogen just as easily a couple years ago.

      The huge selling point for me for electric vehicles is that I can just plug it into one of 30Billion power sockets around the world. And I fully expect the consumer electronics industry to continue dumping billions into lithium ion technology. I don't see that level of continued investment in hydrogen fuel cells.

    187. Re:Hydrogen is indeed quite dangerous... by algoa456 · · Score: 0

      Yup that what they said on the Hindenberg......................

    188. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      The flame is not fucking invisible, Its fucking blue. Faint yes maybe if your not burning a lot, but it is not a fucking invisible stealth flame

    189. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Lithium batteries also burn quite spectacularly! so too does diesel and petrol.

    190. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      The fuel tank in the Honda Fit is under the front seats. That is the reason it has a larger than normal cargo area for a vehicle its size.

    191. Re:Hydrogen is indeed quite dangerous... by Lennie · · Score: 1

      Break even has already happend.

      Just is solar can't produce power all day long.

      Unless you have a large plant with something like: http://en.wikipedia.org/wiki/Solar_thermal_energy#Molten_salt_storage

      Like a bunch of these have:
      http://en.wikipedia.org/wiki/List_of_solar_thermal_power_stations

      --
      New things are always on the horizon
    192. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      While you certainly need to conscious of your driving plans and charger locations, rarely do you have to divert to some far-away location.

      That's when you drive home and get your real car instead.

    193. Re:Hydrogen is indeed quite dangerous... by Lennie · · Score: 1

      Anyway, that is why I wouldn't rule it out completely.

      --
      New things are always on the horizon
    194. Re:Hydrogen is indeed quite dangerous... by Pseudonym · · Score: 1

      More pollution to the local people?

      If it makes electric or hydrogen vehicles practical, then less pollution overall.

      We're not talking about a brown coal generator in every suburb here.

      --
      sub f{($f)=@_;print"$f(q{$f});";}f(q{sub f{($f)=@_;print"$f(q{$f});";}f});
    195. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Out of 97 people only 35 died. Pretty damn good for a worst case scenario.

    196. Re:Hydrogen is indeed quite dangerous... by niftymitch · · Score: 1

      Hydrogen gas is quite safe, if a tank is just punctured, it will remove itself harmlessly from the vicinity.

      Not really. Among other things, the flame is invisible, which surprisingly is a major safety issue.

      Beyond that, the main problems are storing enough of it (because it is so light) for reasonably long times (because it leaks through normal metal tanks).

      The main problem I see with fuel cells is the nature of the fuel and how efficiently
      it gets converted to power that moves a car.

      Too many processes fiddle with hydrocarbons or coal to generate hydrogen.
      This is often not efficient or an improvement to the greenhouse gas loading
      of the atmosphere. Might be wrong but the power plant stacks are tall so they
      can flush their gasses as high as they can so the gas is as far from sensors
      as it can be.

      Fuel cells require very pure inputs. The fuel need not be Hydrogen but
      all sufficiently pure fuel is a pain in the ass to manufacture and ship
      to a fueling station. Of them all hydrogen might be the safest to live
      close to. Safety is relative, larger volumes and higher pressures contrive
      to be dangerous.

      The ideal set of solutions is complex but for one there is a need for
      improvements to commercial and residential zoning laws. Too many
      folk commute hours in their infernal combustion vehicle and only
      do so because the commercial business park is an hour away from
      residential housing.

      Do the math... a cubical is perhaps 7x10" per employee yet the
      home for that employee is vastly larger when a family is considered.
      Rentals and ownership confuse the entire thing.

      I am reminded about "owing your soul to the company store".
      Laws that addressed abuses... hobble the system today.

      --
      Truth is stranger than fiction, but it is because Fiction is obliged to stick to possibilities; Truth isn't. Mark Twain.
    197. Re:Hydrogen is indeed quite dangerous... by Anonymous Coward · · Score: 0

      Carbon is difficult to fix. Use nitrogen instead.

      Congratulations, you've invented ammonia, which was burned in Belgian buses during WWII.

    198. Re:Hydrogen is indeed quite dangerous... by LifesABeach · · Score: 1

      You have reminded me that a long journey begins with a single step; this is a good thing indeed.

  2. Well, he's not wrong by atlasdropperofworlds · · Score: 4, Insightful

    But the danger of fuel cells is not so much from the hydrogen storage part, you can engineer around that - ffs lithium batteries can burn too, and they carry their own oxidizers to do it, it's more from the fact that the cheapest source of hydrogen will be from gasification of fossil fuels, and from the fact that hydrogen via electrolysis is horribly inefficient, and then you actually have to build an infrastructure for the hydrogen distribution...

    1. Re:Well, he's not wrong by Anonymous Coward · · Score: 0

      One strange thing about the way lithium batteries burn, when the battery undergo a controlled burn online images exaggerated it.

    2. Re:Well, he's not wrong by Anonymous Coward · · Score: 3, Interesting

      In europe, en netherlands in particular we have a gas distribution system for cars. liquified petroleum gas is already safely implemented in many cars without any major incidents. It's sold by all gas stations except those in city centers. So transport, en storage is not a real big issue.

      The simple fact that you can quickly pump gas into a car versus hours of charging is a huge advantage if you want to drive beyond the action radius of a single charge.

    3. Re:Well, he's not wrong by triffid_98 · · Score: 1

      it's more from the fact that the cheapest source of hydrogen will be from gasification of fossil fuels, and from the fact that hydrogen via electrolysis is horribly inefficient

      You don't say.... I hear that won't be true for much longer though...

    4. Re:Well, he's not wrong by MobyDisk · · Score: 2

      Interesting. Those sound like the same problems that batteries have: the main source of electricity is fossil fuels, and the need for infrastructure for charging stations.

    5. Re:Well, he's not wrong by Anonymous Coward · · Score: 0

      and what is the cheepest source of electricity to charge those lion cells?

    6. Re:Well, he's not wrong by atlasdropperofworlds · · Score: 4, Insightful

      Again, you can engineer around how they burn. That is not the issue. The issue with hydrogen as a fuel is that it's a stupid idea: Just process fossil fuels again, and have cars the "burn" the product using a remarkably complex machine. No wonder it's taking decades to get to market. Batteries are far simpler, can be recycled, and don't require us to build any new infrastructure.

    7. Re:Well, he's not wrong by Russ1642 · · Score: 2, Informative

      The new infrastructure needed for charging stations is not anywhere near as great as would be needed if we switched to fuel cells for cars.

    8. Re:Well, he's not wrong by Nemyst · · Score: 4, Interesting

      No, not the same thing at all. Hydrogen is usually produced directly from fossil fuels within the chemical reaction itself (see here for details). This is in opposition to electricity for batteries, which is just as good coming from a solar plant as it is from a coal or gas plant. Hydrogen can also be produced from electrolysis, which is actually the most popular way to talk about it in schools, but it's very inefficient and expensive in terms of energy.

    9. Re:Well, he's not wrong by mythosaz · · Score: 1

      How do you measure cost?

      Wind, solar, hydro, nuclear mostly.

      ...unless you're in Oklahoma, where they just burn coal endlessly.

    10. Re:Well, he's not wrong by Demonantis · · Score: 1

      Well propane cars exist so distribution isn't horribly tricky. Everything else you said is spot on though. The only thing hydrogen would be useful for is places where electricity is hard to import.

    11. Re:Well, he's not wrong by Anonymous Coward · · Score: 1

      Yes, but you also have the problem of energy transfer. Out of hydrogen, gasoline, or other combustibles, electricity is unique in that we haven't come up with a way to transfer ridiculous amounts of electricity quickly without generating heat. Assume 10 KWH per 50 mile range, how big a cable are you going to need (And remember, this cable's got to be connected to the battery) to transfer 10 KWH in the same amount of time (or even close) to 2 gallons of gasoline?

      We need room-temperature superconductors (or at least,a quantum jump better in conductive material to what we have now) to make electrical cars as practical as gasoline cars.

    12. Re:Well, he's not wrong by Anonymous Coward · · Score: 0

      Maybe it is in your primitive country, but in a lot of countries the main source of electricity is hydroelectric or nuclear, not coal or petrol.

    13. Re:Well, he's not wrong by Solandri · · Score: 2

      But the danger of fuel cells is [...] the fact that the cheapest source of hydrogen will be from gasification of fossil fuels, and from the fact that hydrogen via electrolysis is horribly inefficient, and then you actually have to build an infrastructure for the hydrogen distribution

      There's work being done on alcohol fuel cells (so far, only methanol). They're a lot less efficient than hydrogen fuel cells. But if we can increase their efficiency and get them to worth with ethanol, then we'll have a way to turn plant matter into an efficient fuel for our cars while using the existing infrastructure.

      Personally I see this as being much more likely to succeed than batteries. Current Li-ion tech needs to improve by an order of magnitude to match gasoline's energy density per liter, and nearly two orders of magnitude to match gasoline's energy density per kg. Ethanol has about 80% the energy density of gasoline by volume, and about 60% the energy density by weight, so it's already in the same ballpark. These liquid fuels are simply a much better way to store energy than an electric battery. The only thing holding them back (assuming you can manufacture them in a closed-loop carbon cycle) are the thermodynamic efficiency limits of the carnot heat transfer cycle. And a fuel cell removes that impediment.

    14. Re:Well, he's not wrong by TangoMargarine · · Score: 1

      And how does switching from one form of fossil fuel to a different one help, exactly?

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    15. Re:Well, he's not wrong by atlasdropperofworlds · · Score: 1

      First it has to get out of just being in one laboratory before it's worth a look. After science actually vets it, we'll see. But, again, at the end of the day you'll still have to have fuel cells actually come to market. They are massive, hot, and complicated. They are used on busses because of all the extra machinery they need to maintain their temperature - oh, and they are high-temperature.

    16. Re:Well, he's not wrong by neurophil12 · · Score: 1

      The simple fact that you can quickly pump gas into a car versus hours of charging is a huge advantage if you want to drive beyond the action radius of a single charge.

      Charging is currently on the order of 30 minutes, not hours, and it can take as little as a couple of minutes for a robot to swap out your batteries for fully charged ones. That is all with current technology.

    17. Re:Well, he's not wrong by atlasdropperofworlds · · Score: 1

      Charing rate is now down to 30 minutes for a 50% recharge (granted, this is at tesla stations, but it's just as real), and will only get faster. Range on a p85 tesla is over 400 km. Where I live, the presence of charging stations is within a few hours drive in every direction. I can get to the major centers around me with 0 or 1 stops at a charging station on the way. In 5 years, batteries will probably grow sufficiently in capacity to negate the need to charge before I get to any major center. At the end of the day, we will run out of fuel one day, I don't really see the point of making it happen as fast as possible.

    18. Re:Well, he's not wrong by atlasdropperofworlds · · Score: 1

      The infrastructure for charging stations is there: The electrical grid has more than enough capacity. As for all electricity coming from fossil fuels, that's just a red herring: Electrons don't care where they come from. Just because there is a lot of fossil fuel generation right now (in my area, btw, it's all hydro-electric - so my electric car wouldn't be charged by fossil fuels), it doesn't mean that it will always be that way. It's actually a strength of the electric car: It won't care if you ditch fossil fuel generation for something else - you don't have to change your car because the generation technology has changed.

    19. Re:Well, he's not wrong by Anonymous Coward · · Score: 0

      ...except for the charger, Ever designed a system to move a megawatt? Gasoline pumps transfer two.

      Anyway, hydrogen is retarded, and the worst part is everyone thinks of hydrogen when they think of fuel cells. Ammonia is the answer.

    20. Re:Well, he's not wrong by citizenr · · Score: 1

      LPG is not corrosive, Hydrogen is.

      --
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    21. Re:Well, he's not wrong by cusco · · Score: 2

      Additionally, a huge percentage of the methane piped around the country as natural gas escapes from leaks and bad seals. Hydrogen, being much smaller than a methane molecule, would escape even more rapidly.

      --
      "Think about how stupid the average person is. Now, realise that half of them are dumber than that." - George Carlin
    22. Re:Well, he's not wrong by Anonymous Coward · · Score: 0

      Interesting. Those sound like the same problems that batteries have: the main source of electricity is fossil fuels, and the need for infrastructure for charging stations.

      It depends on where you live. I live in the pacific nortwhest, and drive a Leaf. The vast majority (something like 98%) of electricity in my state (Washington) comes from non-fossil sources. Of that majority, the vast majority of that is hydro, with some wind and solar.

    23. Re:Well, he's not wrong by Kartu · · Score: 1

      Driving to long distances with an electric car would need "swap stations" where you'd replace your empty battery with charged ones.
      If electric cars will become popular, we'd need to build lots of more power plants.

      Both qualify as "building infrastructure" in my books.

      Also check how far they are with fuel cells in Japan:
      http://en.wikipedia.org/wiki/Hydrogen_highway_(Japan)#Japanese_hydrogen_powered_cars

    24. Re:Well, he's not wrong by michael_rendier · · Score: 1

      Don't forget about this http://phys.org/news/2013-01-nanosilicon-rapidly-electricity.html though i think what they are 'stumbling' onto is the effective surface area to volume ratio more than anything else.

      --
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    25. Re:Well, he's not wrong by Anonymous Coward · · Score: 0

      Energy is not a limiting factor. The sun provides more energy than we can currently conceivably require. Storage and variable usage of that energy is.

    26. Re:Well, he's not wrong by Anonymous Coward · · Score: 0

      Batteries are far simpler, can be recycled, and don't require us to build any new infrastructure.
       
      And just how many cars do you think the grid can handle before it fails when about 90% of these are trying to rejuice around 1am in their local time zone?
       
      The infrastructure will not support it if the number of owners gets much into the double digit marketshare.

    27. Re:Well, he's not wrong by johnlcallaway · · Score: 2

      Hydrogen may not be the answer, but neither is electricity. The 'answer' will probably be a combination of fuels and vehicles depending on requirements.

      The problem with electric cars will always be the range/refuel problem. While it's true around town traffic isn't too much of an issue, corridors like I10 and I8 between Phoenix/Tucson and the San Diego/LA need at least one central station between them for people to fill up.

      The Nissan Leaf has a 24kWh electric battery that advertises 75miles range. That's IF you don't use the heater or A/C, which in Phoenix means the actual amount is much lower 6 months out of the year. But I'm not stopping every 75 miles for 30 minutes, I want to stop every 300 miles for 30 minutes. So we need to be able to pass almost 100KwH into the car in 30 minutes. I could probably do every 200 miles traveling to LA since it's less than 400 miles. And 200 miles would be acceptable for cross country trips, as my wife and I get older, driving 5 hours between stops isn't as tolerable as it used to be. And I'll bet that we spend 30 minutes at a stop, getting gas, using the restroom, looking at souvenirs.

      So doing the math, we need to pump the equivalent of 64KwH in 30 minutes (assuming 24KwH/75 miles). That means the pipe going into the car needs to be able to pump 128KwH in an hour. Most homes have a 200amp service, which is about 44KwH. Each gas station needs to be able to be feed three times what a house is fed in order to charge 1 car in 30 minutes, or a 600amp service for each simultaneous recharge.

      The Tesla, with it's 245 mile range, states that each 56 miles requires 16.8KwH to charge. The home charger requires a 90amp 240V circuit and draws 70amps for complete charging in 4 hours. That's 15.4KwH, so the math checks out above. It would require a 560amp service JUST to charge one Tesla in 30 minutes. I guess we will need to site each cross-country refueling station next to a power facility in order to keep the size of the transmission lines in check. Or they will also need huge batteries to store power sent off-hours. That $0.12/KwH is going to start to go up with that type of infrastructure.

      Electric cars have a place, but they are not long-distance travel cars and never will be. And the last time I checked, there are no electric-powered jet aircraft. So fossil fuels will remain in place for a long time. We can reduce their use, but never eliminate them. I'm sure a world without fossil fuels is fine with the eco-nuts out there. But I'm not giving up my cross-country motorcycle trips because a few tree-huggers don't mind not doing it.

      --
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    28. Re:Well, he's not wrong by garyebickford · · Score: 1

      Fuel cells are theoretically more energy efficient than carnot engines - theoretically up to about 80% vs. about 58%. In most cases gasoline engines run (IIRC) more like 30-35% efficiency. That 80% assumes a high temperature fuel cell and using the waste heat to generate some more power. According to Wikipedia, "The energy efficiency of a fuel cell is generally between 40–60%, or up to 85% efficient if waste heat is captured for use."

      On side note, those great big power plants - coal, gas, oil, or nuke, all generate more heat than electricity. At present we are not using that heat, just evaporating a lot of water. IMHO it could be used in some places to heat and (with all that CO2) accelerate growth in big greenhouses, or perhaps other applications.

      --
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    29. Re:Well, he's not wrong by Albinoman · · Score: 1

      Part of his reasoning with electricity goes hand in hand with another project he's involved in, Solar City. You can charge it at home with essentially free, easy to generate, electricity. Charging a fuel cell is something I would definitely not trust the average joe to do. Also, some of the new charging station can get you from 0 to 300 miles in 20 minutes of charging.

    30. Re:Well, he's not wrong by Anonymous Coward · · Score: 0

      Switching the vehicles from directly using fossil fuels to indirectly using fossil fuels via hydrogen helps in the long run when we eventually get alternate ways of generating hydrogen without using fossil fuels. Especially once fossil fuels run out, we'll be forced to generate electricity by other means, which means resorting to electrolysis would at least work even if it isn't particularly efficient.

    31. Re:Well, he's not wrong by Urza9814 · · Score: 1

      Current Li-ion tech needs to improve by an order of magnitude to match gasoline's energy density per liter, and nearly two orders of magnitude to match gasoline's energy density per kg. Ethanol has about 80% the energy density of gasoline by volume, and about 60% the energy density by weight, so it's already in the same ballpark.

      There's more to it than just energy density though. A typical internal combustion engine only actually extracts around 20% of that energy; the rest is wasted. An electric car motor typically extracts over 80% of that energy.

      So if batteries are currently are an order of magnitude less density, that means they provide about half as much energy to the axles. Still not as good, but doubling is a lot easier than an order of magnitude increase. Improve the battery tech a bit and cram a couple extra cells under the bumper or something. Plus electric motors have fewer parts, better low-end torque, and other advantages. Although there's also the charging time issue...

    32. Re:Well, he's not wrong by Anonymous Coward · · Score: 0

      Propane liquefies easily under moderate pressure, making transport and storage relatively simple. Hydrogen storage is a royal PITA in comparison because hydrogen molecules are so small and light, and has an annoying property to degrade metals coming in contact with them.

      But never mind that; enough work has been done on transporting and storing hydrogen that we know it is doable. The main issues remaining are cost of hydrogen and fear-mongering from charlatans like Musk.

    33. Re:Well, he's not wrong by Anonymous Coward · · Score: 0

      uhh, no. Propane molecules are a lot larger than hydrogen molecules. Further, almost all steel and iron alloys suffer "hydrogen embrittlement" which can be caused by hydrogen migrating through the steel. The normal cause is humidity in the flux on welding rods, which is addressed by keeping the rods dry and baking them if the tin has been left open for more than a few minutes to hours, depending on the alloy and strength requirements.

    34. Re:Well, he's not wrong by evilviper · · Score: 1

      Electric cars have a place, but they are not long-distance travel cars and never will be.

      That's utter nonsense. Once charging times get down to about 30 minutes for every 5.5 hours of driving, EVs will be able to exceed the limits of most human drivers, who have to stop for bathroom breaks and food anyhow, and might just as well plug-in to that charger in the parking space while they're doing that. Many truck stops have similar arrangements.

      And the last time I checked, there are no electric-powered jet aircraft

      No jets, but a few prop-driven electric aircraft. And it just so happens that airlines are switching some of their routes from jets back to turboprop designs, because of the greater fuel efficiency. A couple more price increases, and airlines wouldn't mind, at all, switching to solar-powered electric aircraft.

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    35. Re:Well, he's not wrong by evilviper · · Score: 1

      Current Li-ion tech needs to improve by an order of magnitude to match gasoline's energy density per liter, and nearly two orders of magnitude to match gasoline's energy density per kg.

      None of which matters, because you're ignoring conversion efficiency, and the weight and volume of the engine, transmission, cooling system, emissions control, thermal shielding, noise shielding, all the other supporting systems and knock-on effects necessary for using that gasoline to do useful work (versus just generating waste heat). Li-Ion batteries blow past gasoline once you factor those in. Li-Ion batteries fall behind only in COST, right now, which will continue to drop.

      The only thing holding them back (assuming you can manufacture them in a closed-loop carbon cycle) are the thermodynamic efficiency limits of the carnot heat transfer cycle. And a fuel cell removes that impediment.

      The ONLY THING holding the theoretic great solution back, is all of reality...

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    36. Re:Well, he's not wrong by Josh-Levin · · Score: 1

      It has also been alleged that H2 is a greenhouse gas.

      Another point — there has been some work on converting light and water directly into H2 and O2 gas much more efficiently that powering electrolysis from photovoltaic electricity.

    37. Re:Well, he's not wrong by SillyHamster · · Score: 1

      That's utter nonsense. Once charging times get down to about 30 minutes for every 5.5 hours of driving, EVs will be able to exceed the limits of most human drivers, who have to stop for bathroom breaks and food anyhow, and might just as well plug-in to that charger in the parking space while they're doing that. Many truck stops have similar arrangements.

      How do you plan to get those charging times down? Did you not notice the energy problem of having enough electricity at the charging station at the right amperage to do 30 minute charging?

      A couple more price increases, and airlines wouldn't mind, at all, switching to solar-powered electric aircraft.

      I have severe doubts that the amount of sunlight that hits the surface area of an aircraft will be sufficient to keep it flying, at least for anything that carries commercial quantities of passengers and cargo. That's before we even get into the safety issues of a plane that can't guarantee it has the fuel to get to its own destination.

    38. Re:Well, he's not wrong by evilviper · · Score: 1

      How do you plan to get those charging times down? Did you not notice the energy problem of having enough electricity at the charging station at the right amperage to do 30 minute charging?

      No, I see no problem there at all... Lots of office buildings have higher-power service than we're talking about, and you're acting as if it's some sort of insurmountable goal. Sure, it's more power than a private home has available, but every shopping mall, and passenger airport in the country should be able to provide several parking spaces with the kind of power without trouble. Maybe your average fast food restaurants don't typically have that kind of power, but running a 3-phase circuit to them isn't terribly expensive.

      Just because something is outside your realm of comfort does not mean it's actually a challenge. I should point out Tesla Supercharger stations are already very near the power requirements we're talking about. Also, the figures provided above are based on a poor understanding of AC power, and don't actually match reality.

      I have severe doubts

      Good for you. I have a brick...

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    39. Re:Well, he's not wrong by SillyHamster · · Score: 1

      No, I see no problem there at all... Lots of office buildings have higher-power service than we're talking about, and you're acting as if it's some sort of insurmountable goal. Sure, it's more power than a private home has available, but every shopping mall, and passenger airport in the country should be able to provide several parking spaces with the kind of power without trouble. Maybe your average fast food restaurants don't typically have that kind of power, but running a 3-phase circuit to them isn't terribly expensive.

      If you're only assuming a tiny minority of electric cars while everyone else drives ICEs, sure.

      If everyone's running electric cars, that's a huge spike in electrical demand that requires a corresponding power generation increase, sited whereever it needs to be. See how many cars at a typical gas station? Make each of those 5 minute fillups into 30 minute charges, across dozens of vehicles per station.

      Is the minor per mile cost-savings of electric vehicles going to fund that widescale infrastructure overhaul?

      A couple more price increases, and airlines wouldn't mind, at all, switching to solar-powered electric aircraft.

      I have severe doubts that the amount of sunlight that hits the surface area of an aircraft will be sufficient to keep it flying, at least for anything that carries commercial quantities of passengers and cargo

      Good for you. I have a brick...

      Solar powered airplane in cloudy weather. What's the plan?

      Let's do a brief overview of the first solar airplane google links:

      http://www.manufacturing.net/articles/2013/10/across-america-in-12000-solar-cells

      Solar Impulse: Wingspan of a 747, two passengers. Travels around 20~30 MPH per Wiki article. "power of a scooter". 3,500 lbs.

      Boeing 747: 500~ passengers. Travels at 500~ MPH. 380,000-700,000 lbs. (empty/max flying weights)

      Even being ridiculously generous and allowing that a Boeing 747 can maybe fit say 10x as many solar panels of the Solar Impulse, solar power can't do it. 1% of the passengers; 0.5~1% of the weight, 7~% of the speed. (which is maybe 5% of the power)

      Solar powered airplanes might have some use in some niche solutions, such as long duration UAV monitoring of weather/environment. But solar powered for general commercial use? You can't be serious.

    40. Re:Well, he's not wrong by evilviper · · Score: 1

      See how many cars at a typical gas station? Make each of those 5 minute fillups into 30 minute charges, across dozens of vehicles per station.

      Completely false logic. The overwhelming majority of people will charge up at home the overwhelming majority of the time, off-peak and all, so minimal new electrical generating capacity will be necessary.

      Is the minor per mile cost-savings of electric vehicles going to fund that widescale infrastructure overhaul?

      Several times cheaper isn't "minor". Much of the infrastructure is already there. You keep paying for much more expensive infrastructure by driving a gasoline burning vehicle. And the cost of charging stations will be borne by the folks using them, not spread around, and they can decide if the per-KW price on the sign is worth it or not.

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    41. Re:Well, he's not wrong by SillyHamster · · Score: 1

      Completely false logic. The overwhelming majority of people will charge up at home the overwhelming majority of the time, off-peak and all, so minimal new electrical generating capacity will be necessary.

      Sure. Those blackouts during summer when everyone turns on their AC will not happen because electrical cars charged at home cause no significant extra load on the power grid. No overlap at all between the times people are at home using AC and charging the electrical car.

      Worst case planning trumps wishful thinking. Yes, electrical car power demand would drive a need for more power plants - where are those in the pipeline? Where is that infrastructure being built to handle the future demand? You said it's minimal - provide a ballpark number to demonstrate how minimal it ought to be.

      Several times cheaper isn't "minor". Much of the infrastructure is already there. You keep paying for much more expensive infrastructure by driving a gasoline burning vehicle. And the cost of charging stations will be borne by the folks using them, not spread around, and they can decide if the per-KW price on the sign is worth it or not.

      Batteries are not cheap. The premium for the electrical vehicle parts exceeds the per-mile cost-savings for most vehicles for most driving patterns. (personally cheaper for an individual due to subsidies is not the same as actually being cheaper)

      There's a chance that new tech will close that gap in the future, but we're not there yet - and may never - like solar powered commercial aircraft.

    42. Re:Well, he's not wrong by evilviper · · Score: 1

      No overlap at all between the times people are at home using AC and charging the electrical car.

      Nope... EV chargers have built-in timer, and instructions direct owners to set it for 8pm or so. If a good number of people don't voluntarily do so, then power companies will just have to expand peak/off-peak billing. Should be easy enough to make the change with all the "smart" meters they're installing, everywhere.

      Yes, electrical car power demand would drive a need for more power plants - where are those in the pipeline? Where is that infrastructure being built to handle the future demand?

      Electrical demand is currently FALLING. More-efficient appliances, cheaper prices on new, efficient devices thanks to China, automation, etc. And new technology like improved CFLs, and now LEDs that use half as much power still for lighting.

      Never-the-less, more power plants are being built all over the country, all the time. Wind turbines are being installed at break-neck speed all over the place. And California at least is expanding their solar power installations (PV and thermal) as fast as they reasonably can.

      EVs will NOT be a sudden spike in demand, anyhow. They will be a small, gradual increase in demand on the grid, that will not need to be addressed for years, and will be handled in the same manner as increasing demand for any other reasons.

      You said it's minimal - provide a ballpark number to demonstrate how minimal it ought to be.

      Do your own damn research...

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    43. Re:Well, he's not wrong by SillyHamster · · Score: 1

      Nope... EV chargers have built-in timer, and instructions direct owners to set it for 8pm or so. If a good number of people don't voluntarily do so, then power companies will just have to expand peak/off-peak billing. Should be easy enough to make the change with all the "smart" meters they're installing, everywhere.

      In other words, the power companies have to do a lot of extra work to integrate a *small* number of electrical cars. Not that it's impossible to scale it further, but it's harder than you're thinking.

      "Plugging in an electric vehicle is, in some cases, the equivalent of adding three houses to the grid. That has utilities in Californiaâ"where the largest number of electric vehicles are soldâ"scrambling to upgrade the grid to avoid power outages."

      http://www.technologyreview.com/news/518066/could-electric-cars-threaten-the-grid/

      Just a single dedicated EV charger in a neighborhood forces the power company to adjust, and it's paid by everyone, not the EV owner. It uses subsidies, not cost-savings, to build that infrastructure. That makes it a luxury, not an inevitable improvement.

      Electrical demand is currently FALLING. More-efficient appliances, cheaper prices on new, efficient devices thanks to China, automation, etc. And new technology like improved CFLs, and now LEDs that use half as much power still for lighting.

      Never-the-less, more power plants are being built all over the country, all the time. Wind turbines are being installed at break-neck speed all over the place. And California at least is expanding their solar power installations (PV and thermal) as fast as they reasonably can.

      Electrical demand is down at the same time that a recession/depression has been sustained for 4 odd years. (which reduces demand, as well as the manufacturing done to profit off that demand)

      Are you just mindlessly reciting talking points now? You argue that EVs will be charged after 8pm; and then point to solar power installations as a development to meet such an increased demand ... I'll leave it to you to figure out what's wrong with that thinking.

      EVs will NOT be a sudden spike in demand, anyhow. They will be a small, gradual increase in demand on the grid, that will not need to be addressed for years, and will be handled in the same manner as increasing demand for any other reasons.

      Which is fine as long as EV adoption is not paid for with taxpayer subsidies. Let the rich kids pay for their own bloody toys and status markers.

      Do your own damn research...

      From the guy who seriously suggested that airlines would be happy to switch to *solar* powered airplanes.

      I guess if the future market of flyers are willing to pay multiple thousands of dollar for a ride in a two-person plane that travels slower than a car.

    44. Re:Well, he's not wrong by evilviper · · Score: 1

      "Plugging in an electric vehicle is, in some cases, the equivalent of adding three houses to the grid. That has utilities in CaliforniaÃ"where the largest number of electric vehicles are soldÃ"scrambling to upgrade the grid to avoid power outages."

      http://www.technologyreview.com/news/518066/could-electric-cars-threaten-the-grid/

      That's a decent source, you're just quoting it out of context. It actually completely disagrees with almost everything you've been claiming... To wit:

      "researchers at the U.S. Department of Energyâ(TM)s Pacific Northwest National Laboratory have calculated that the grid has enough excess capacity to support over 150 million battery-powered cars, or about 75 percent of the cars, pickups, and SUVs on the road in the United States."

      You argue that EVs will be charged after 8pm; and then point to solar power installations as a development to meet such an increased demand ...

      Solar power installations are happening in CA, but it has NOTHING specifically to do with EVs. That's your own imagination, and/or reading comprehension failure. And YOUR OWN SOURCE SAYS SO.

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    45. Re:Well, he's not wrong by SillyHamster · · Score: 1

      "researchers at the U.S. Department of EnergyÃ(TM)s Pacific Northwest National Laboratory have calculated that the grid has enough excess capacity to support over 150 million battery-powered cars, or about 75 percent of the cars, pickups, and SUVs on the road in the United States."

      Followed IMMEDIATELY by, "But there's a catch. While power plants and transmission lines have excess capacity, things can get tight when it comes to distributing power to individual neighborhoods. And this is especially the case since electric vehicle sales aren't evenly distributed." [bold emphasis added].

      The researcher calculation also probably uses favorable assumptions, such as the existence of a wide-spread smart grid that manages demand, with everyone following optimal group behavior to make the cars work efficiently with the grid.

      A problem is that cars exist to move people when they want to go somewhere. Cars do not exist to be charged efficiently by the grid. Hence, the DOCUMENTED challenges in the article - the addition of a single quick car charger requires the power company to plan an upgrade to a neighborhood's power grid.

      Real world experience trumps theoretical extrapolation. The challenge does not make widespread EV use impossible, but it shows that adoption requires a lot more work than you're acknowledging.

      Solar power installations are happening in CA, but it has NOTHING specifically to do with EVs. That's your own imagination, and/or reading comprehension failure.

      You brought it up in response to my challenge to show how the power grid is going to handle the increased demand caused by widespread EVs. Based on the context, I thought you wanted to make a serious response to my point, rather than bringing up a red herring with no relation to the discussion.

      It should go without saying that charging EVs at night is not going to be helped by daylight power generation. (if you'd like to suggest batteries/supercaps to store the energy, that costs money and reduces efficiency)

      So, how about those solar-powered planes?

    46. Re:Well, he's not wrong by evilviper · · Score: 1

      things can get tight when it comes to distributing power to individual neighborhoods

      But now you're just backpedaling as quickly as you can... Until now, you weren't talking about distribution. You specifically said "electrical car power demand would drive a need for more power plants." You were wrong and trying desperately not to admit it, while you spin and try to discredit the PART of your own source that doesn't support your point, and emphasize the PART that shows SOMETHING, ANYTHING bad or challenging about EVs.

      I don't know why you're so desperate to try and discredit EVs, and I don't care.

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    47. Re:Well, he's not wrong by SillyHamster · · Score: 1

      But now you're just backpedaling as quickly as you can... Until now, you weren't talking about distribution.

      I'm not particularly impressed with your quotation of single sentences out of context. But let's review my very first response : "Did you not notice the energy problem of having enough electricity at the charging station at the right amperage to do 30 minute charging?"

      That's generic, and covers both transmission and generation.

      Next, there are limits to the transmission of energy. My state, California, is notorious for not building power plants in state (save the environment!) and buying power from out of state; on the flip side, it hosts a large number of the early adopters of EV.

      For EVs to be widespread in my state would really need more generators built *somewhere*, or power outages and high prices will result. Smart grids help with distribution, but perfect distribution is not attainable; at some point you have to increase the capacity - both for the generation and transmission. (read the article - power company is working HARD to prevent outage caused by EVs!)

      I don't know why you're so desperate to try and discredit EVs, and I don't care.

      Not trying to discredit EVs. Trying to cleanup the bullshit optimism that is unhinged from reality. There was the off chance you might listen and correct - in either case, 3rd parties can read our discussion and be educated or amused.

      So, how about those solar-powered airplanes?

  3. And lithium extraction pollutes the earth by casings · · Score: 4, Insightful

    They all have their drawbacks, Elon.

    1. Re:And lithium extraction pollutes the earth by Anonymous Coward · · Score: 0

      Lithium needs to be extracted once to be used for 400-500 charge cycles. Hydrogen needs to be manufactured every time.

    2. Re:And lithium extraction pollutes the earth by cusco · · Score: 2

      That's one of the reasons that they want to mine lithium in the Atacama Desert and the Lago Po'opo salt pan. There's no natural ecosystem to destroy, not even bacteria in some places, no water table to contaminate, no rain runoff. Of course the main reason is the high concentrated ore, and so far the only obstruction is the Bolivian government's insistence on safe working conditions for miners and refinery workers (to the enormous distress of mining companies, who are used to treating workers as disposable).

      --
      "Think about how stupid the average person is. Now, realise that half of them are dumber than that." - George Carlin
    3. Re:And lithium extraction pollutes the earth by Anonymous Coward · · Score: 0

      I think ill take the one time lithium extraction for a car battery over the ongoing oil extraction. Also, the lithium from old batteries is recycled.

  4. Other car manufacturers... by guytoronto · · Score: 0

    Other car manufacturers say "batteries are so bullshit".

    Be careful what you Mr. Musk. It can be embarrasing when somebody proves you wrong.

    1. Re:Other car manufacturers... by ArsonSmith · · Score: 1

      Is to Mr. Musk already a verb?

      --
      Paying taxes to buy civilization is like paying a hooker to buy love.
  5. I didn't realize he was so direct. by Anonymous Coward · · Score: 0

    I didn't realize he was so direct. I like him.

    1. Re:I didn't realize he was so direct. by guytoronto · · Score: 5, Funny

      He's like the Linus Torvalds of the automotive industry!

    2. Re:I didn't realize he was so direct. by Anonymous Coward · · Score: 0

      Wow, quite a leap there. Time for your meds.

    3. Re:I didn't realize he was so direct. by ElectricTurtle · · Score: 1

      Clearly you have a broad experience for frame of reference in this matter from which to draw comparisons?

      --
      I support the Slashcott and will not be reading or commenting from 2/10/14 to 2/17/14. Beta is steaming pile of dog shit
    4. Re:I didn't realize he was so direct. by TWiTfan · · Score: 2

      Yeah, a CEO with the moral courage to bad-mouth competitors' products. Truly, he's a hero for the ages.

      --
      The cow says "Moo." The dog says "Woof." The Timothy says "Thanks, valued customer. We appreciate your input."
    5. Re:I didn't realize he was so direct. by Anonymous Coward · · Score: 0

      You are sex maniac!

    6. Re:I didn't realize he was so direct. by crutchy · · Score: 0

      Tell us the full story. How does his cock taste?

      Tell us the full story. Why would you want to know that?

    7. Re:I didn't realize he was so direct. by Anonymous Coward · · Score: 0

      We're all in one big circlejerk here. It will go smoother with some extra erotic material.

    8. Re:I didn't realize he was so direct. by Anonymous Coward · · Score: 0

      Please show us these "products". The hydrogen crowd has nothing but dreams and fallacies, no products.

  6. That's PR by Anonymous Coward · · Score: 0

    Speaking his mind is what he does at meetings with employees. Also, don't his car batteries burn brighter than those in the Dreamliner?

    1. Re:That's PR by X0563511 · · Score: 1

      Sure, when you ram a steel object into them hard enough to punch a 3" hole an 1/4" thick steel plate.

      --
      For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
    2. Re:That's PR by Anonymous Coward · · Score: 0

      So, Mr. Musk is saying what? That accidents should not count when it isn't convenient for him? Reminds me of another douche CEO who made his money from idiots by way of reality distortion.

  7. Re:Wait... by X0563511 · · Score: 4, Informative

    There's a bit more to it than that, jackass.

    a Model S traveling at highway speed struck a large metal object, causing significant damage to the vehicle. A curved section that fell off a semi-trailer was recovered from the roadway near where the accident occurred and, according to the road crew that was on the scene, appears to be the culprit. The geometry of the object caused a powerful lever action as it went under the car, punching upward and impaling the Model S with a peak force on the order of 25 tons. Only a force of this magnitude would be strong enough to punch a 3 inch diameter hole through the quarter inch armor plate protecting the base of the vehicle.

    As well, the firefighters made it worse before they made it better:

    "When the fire department arrived, they observed standard procedure, which was to gain access to the source of the fire by puncturing holes in the top of the battery's protective metal plate and applying water. For the Model S lithium-ion battery, it was correct to apply water (vs. dry chemical extinguisher), but not to puncture the metal firewall, as the newly created holes allowed the flames to then vent upwards into the front trunk section of the Model S. Nonetheless, a combination of water followed by dry chemical extinguisher quickly brought the fire to an end."

    --
    For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
  8. That's been said before. by negativeduck · · Score: 1

    Same thing was once said about Gas. Your strapping a massive storage of energy to wheels and sending it off at speeds faster than most peoples reaction time. I think the one that batteries have going for it over any other source today is that they can be used and deployed without the need of specialized fueling or anything like that.

    That's a hard thing to change, just look at DEF, you still have very limited supply locations if your a general consumer that isn't always going to truckstops.

    1. Re:That's been said before. by Anonymous Coward · · Score: 0

      DEF is easy to get... just get a bunch of college students and a keg of Budweister, and let them do the work.

    2. Re:That's been said before. by Anonymous Coward · · Score: 0

      speeds faster than most peoples reaction time

      What does this even mean? How can a time be smaller than a speed? Which is greater 10 seconds or 55 MPH? You might as well say that my car is heavier than my reaction time too.

  9. Other kinds of fuel cells by Russ1642 · · Score: 2

    His comment applies only to hydrogen fuel cells. There are other kinds, and they offer higher energy storage densities. Don't let this guy's comments deter from the research.

    1. Re:Other kinds of fuel cells by atlasdropperofworlds · · Score: 1

      And those will come to market in........

    2. Re:Other kinds of fuel cells by Sechr+Nibw · · Score: 1
    3. Re:Other kinds of fuel cells by crutchy · · Score: 0

      There are other kinds, and they offer higher energy storage densities

      I'm saving my money for when the black hole powered car comes out... I thought it was going to be December 21 last year, but production efficiency must really suck.

    4. Re:Other kinds of fuel cells by Demonantis · · Score: 2

      Fuel cells are already in the market. Mostly forklifts and such though.

    5. Re:Other kinds of fuel cells by Albinoman · · Score: 2

      Must not have really caught on then. I've worked in a few factories and have never seen one. Lots of electrics and the rest propane.

    6. Re:Other kinds of fuel cells by evilviper · · Score: 1

      Must not have really caught on then. I've worked in a few factories and have never seen one. Lots of electrics and the rest propane.

      Your anecdotes are NOT representative of reality. In fact according to the DoE, methanol fuel cells are more popular than battery powered forklifts, as they have longer operating times between refueling, shorter "recharge" times, lower maintenance costs, etc.

      --
      Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
    7. Re:Other kinds of fuel cells by vandamme · · Score: 1

      If somebody came up with a fuel cell that was cheap, ran on liquid like ethanol or butanol which could be stored easily and fit existing distribution, you'd have electric cars that ran like gasoline cars.

  10. Is Hydrogen more dangerous than other gasses? by Marrow · · Score: 1

    We deal with Propane, Methane, and other gasses which seem like they would carry a lot more energy and thus be more dangerous. Does hydrogen have a lower flashpoint or some other quality which makes it more dangerous? We can oderize the gas like the others.
    It seems like hydrogen would be the least dangerous gas. At least it burns cleanly and is not poisonous to breathe. Its light, so it would rise into the atmosphere away from people and property and not hang around near the ground.
    Is this all about that black and white movie? Because I saw a fire, not an explosion.

    1. Re:Is Hydrogen more dangerous than other gasses? by Anonymous Coward · · Score: 0

      It seems like hydrogen would be the least dangerous gas.

      Uncontrolled, hydrogen gas will be one of the fastest burning of gases so it is not one of the least dangerous gases.

    2. Re:Is Hydrogen more dangerous than other gasses? by Anonymous Coward · · Score: 0

      It was the fabric skin of the Hindenburg that was the problem. The hydrogen flashed away fairly fast.

    3. Re:Is Hydrogen more dangerous than other gasses? by sfm · · Score: 4, Insightful

      Hydrogen has a wider range of flammability mixtures than any of those other gasses mentioned.
      Unlike propane, hyrdogen liquifies at temperatures too cold for normal use so this storage mechanism is not feasible.
      H2 also has a nasty habit of permeating the metal structure of high pressure tanks leading to embrittlement and reduced strength.

      These, and other factors, combine to push Hydrogen higher on the list of "dangerous gasses".

    4. Re:Is Hydrogen more dangerous than other gasses? by DCFusor · · Score: 3, Insightful
      I use an isotope of hydrogen in my lab, in this case deuterium, which is about the same chemically speaking, if anything, a little less reactive (see how they separate the two normally). At any rate, a hose with a few psi supply of it popped off my gear once and was *instantly* on fire - flames invisible at first, but I could hear it, and then see it when the hose material (silicone) itself began to burn. There was no proximate ignition source - maybe some static electricity in the lab.

      No other gas even comes close...the guy who provides my welding gasses, for example, even acetylyene which has to be dissolved in acetone to be "safe" at any pressure over 15-20 psi - it self-explodes otherwise (those unsatisfied carbon bonds) - can't even get the license to sell hydrogen, it's far too much a hazmat.

      Now you want to let joe sixpack work with the stuff in quanity, all over the world? Yeah, it'll solve the population problem anyway. Along with the other stuff mentioned, like embrittlement, no way to liquify it at normal temperatures, a continuous explosive range with any air mixture...inefficient production, energy-wise...long list.

      --
      Why guess when you can know? Measure!
    5. Re:Is Hydrogen more dangerous than other gasses? by eis2718bob · · Score: 2

      Does hydrogen have a lower flashpoint or some other quality which makes it more dangerous?

      doi:10.1016/j.ijhydene.2009.04.012
      Limits for hydrogen leaks that can support stable flames, International Journal of Hydrogen Energy Volume 34, Issue 12, June 2009, Pages 5174–5182

      Hydrogen is an unusual fuel. It has a high leak propensity and wide flammability limits, 4–75% by volume. Among all fuels, hydrogen has the lowest molecular weight, the lowest quenching distance (0.51 mm), the smallest ignition energy in air (28 mJ), the lowest auto-ignition temperature by
      a heated air jet (640C), the highest laminar burning velocity in air (2.91 m/s), and the highest heat of combustion (119.9 kJ/g). Hydrogen flames are the dimmest of any fuel. Hydrogen embrittles and attacks metals more than any other fuel.

      Mind you, this is from researchers generally inclined towards the use of hydrogen.

    6. Re:Is Hydrogen more dangerous than other gasses? by crutchy · · Score: 1

      We deal with Propane, Methane, and other gasses which seem like they would carry a lot more energy and thus be more dangerous. Does hydrogen have a lower flashpoint or some other quality which makes it more dangerous? We can oderize the gas like the others.

      my ass produces very powerful methane en masse, and it is supplied in an odorized form... unfortunately it is a very dangerous, volatile and toxic gas indeed... especially when released in the vicinity of my wife, during which psychosis appears to be a common short term side effect

    7. Re:Is Hydrogen more dangerous than other gasses? by ebno-10db · · Score: 1

      I'd rather rely on experiment than speculation about how some of hydrogen's properties make it more dangerous.

    8. Re:Is Hydrogen more dangerous than other gasses? by Albinoman · · Score: 1

      It wasn't exactly a campfire. The problem isn't the amount of energy it has but how fast it can release it. Sugar has more energy than dynamite.

    9. Re:Is Hydrogen more dangerous than other gasses? by Khyber · · Score: 1

      " There was no proximate ignition source - maybe some static electricity in the lab."

      Likely because hydrogen and a few isotopes of it self-heat when they expand. Doubt it was static that ignited your fuel.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    10. Re:Is Hydrogen more dangerous than other gasses? by garyebickford · · Score: 1

      The political advantage of Hydrogen is that, once it is magically created out of fairy dust, the primary combustion product from burning it is just water - no CO2 to sully our atmosphere. I think if that were not the major factor, H2 would be out of the picture almost immediately. I know of no other singular advantage.

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
    11. Re:Is Hydrogen more dangerous than other gasses? by garyebickford · · Score: 1

      We should mix it with this stuff, just to make it more interesting.

      The article itself is pretty interesting, but it also has this money quote: "It is, of course, extremely toxic, but that's the least of the problem. It is hypergolic with every known fuel, and so rapidly hypergolic that no ignition delay has ever been measured. It is also hypergolic with such things as cloth, wood, and test engineers, not to mention asbestos, sand, and water — with which it reacts explosively...." - quote is from Ignition by John D. Clark, eminent rocket scientist, a very interesting, amusing and factual book.

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
    12. Re:Is Hydrogen more dangerous than other gasses? by garyebickford · · Score: 1

      Haha. Reminds me of the good old days. In high school one of the guys on the football team, trying the old 'light your farts' trick, lay down on a table with his legs in the air and his undies off, and held a lighter in the target zone. The fart was much bigger than he expected, and it went off in a ball of fire reminiscent of a blowtorch, singeing the hair off his butt and thighs! :D

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
    13. Re:Is Hydrogen more dangerous than other gasses? by Anonymous Coward · · Score: 0

      We can't trust you, you already have unlimited energy with your fusor!

    14. Re:Is Hydrogen more dangerous than other gasses? by Teancum · · Score: 1

      Of course water vapor is also a greenhouse gas, not that anybody involved really cares about such details. Incomplete combustion of Hydrogen also produces Hydrogen Peroxide... and that does have some other environmental consequences of its own. Not horribly nasty compared to other kinds of combustion products from burning hydrocarbon fuels, but it isn't completely without dangers either.

      Simply put, you can't have everything to be perfect. There may be "lesser evils" and things that do less damage thus are more responsible things to do, but in the end this is all about how you collect, store, and release large quantities of energy in a fashion that is useful for an individual upon demand.

    15. Re:Is Hydrogen more dangerous than other gasses? by garyebickford · · Score: 1

      Indeed. Entropy is another way of saying "There ain't no such thing as a free lunch." One definition of life is as a dynamic self-replicating process that reduces entropy locally and increases it externally. As living beings, we are constantly consuming low-entropy highly organized materials (plants and animals) and producing higher entropy, less organized poop. And other life forms use that poop, plus sunlight and some other ingredients, to produce plants. The net sum is that the sunlight in part becomes 'us', and the universe becomes slightly darker among other things.

      Now, my extrapolation gene kicks in ...

      Soon we will be increasing our conversion of chemical, and perhaps nuclear energy to push people and materials into space, where we as the representatives and pioneering species of Earth life, will extract valuable materials from other bodies in the Solar System, bringing some of these materials (or perhaps just the energy in the form of solar-powered microwave beams that replace earthly power stations, who knows?) back to Earth where they will reduce our overall use of those resources, but the Solar System will have a lower entropy; and we will use the rest of those materials and energy to populate new areas of the Solar System, thereby expanding Life As We Know It outward from here.

      In that sense we could be considered the Termites Of Space (by analogy - those huge termite mounds in Africa establish an entirely different ecosystem, with their own internal flora and fauna). And many plants that are known as 'pioneering' species will arrive in a desolated region, such as volcanic zone, and establish themselves. They in turn provide essential support for secondary pioneering plants and animals, and in the blink of an eye, a forest appears.

      Some day, I hope we will be discussing concerns about how the proliferation of our magnetic-field flitters travelling between stars using the Albuquierre Warp Drive is causing distortions to the galactic magnetic field, and altering the orbital paths of the dust lanes in the local region. "Planet huggers" will be lobbying to reduce these distortions in various ways to preserve the integrity of our region of the Galaxy, and they may well have a point. The extremists will argue that we must cease all faster-than-light travel immediately, and their opponents will note that this will effectively mean the end of human civilization as we know it, and the descent of every human-occupied stellar system into its own isolated evolutionary island.

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
    16. Re:Is Hydrogen more dangerous than other gasses? by jwhitener · · Score: 1

      Well, the honda fuel cell car is in production and being leased in limited amounts to residents of southern California. There are hydrogen refueling stations there. So far no one has exploded hehe.

  11. Sour grapes. by Anonymous Coward · · Score: 1

    Hydrogen is as dangerous as a big block of lithium batteries.. ie. not very unless you're doing something stupid.

    Bonus. Many fuel cell designs and systems dont need replaced like a lithium battery pack WILL eventually.
    He's just bullshitting to drum up some sales.

    Someone slap him and tell him to shut up before he says something stupid that costs him alot of money.

    1. Re:Sour grapes. by Anonymous Coward · · Score: 0

      "Hydrogen is as dangerous as a big block of lithium batteries.. ie. not very unless you're doing something stupid."

      1. Citation needed.
      2. I guess you have a LITERALLY foolproof way to keep people from doing something stupid?

    2. Re:Sour grapes. by KevReedUK · · Score: 1

      2. I guess you have a LITERALLY foolproof way to keep people from doing something stupid?

      This reminds me of one of my favorite aphorisms in the world of IT (or any other industry, for that matter):

      For every idiot-proof system, there is at least one system-proof idiot.

      Please note, this comment is supporting your challenge, not countering it!

      --
      Just my $0.03 (At current exchange rates, my £0.02 is worth more than your $0.02)
  12. energy by Anonymous Coward · · Score: 1

    Well, anything that stores high amount of energy per volume tends to be a bomb in the limit of things. Superbatteries of the future will be used by terrorists.

  13. What's the debate? by Mr+D+from+63 · · Score: 2

    Fuel cells have been a "promise" for decades. Heavy investment and R&D has not yet come close to yielding a product the mass market can make use of. They will be relegated to niche markets unless some tremendous breakthroughs occur.

    1. Re:What's the debate? by Anonymous Coward · · Score: 0

      Gasoline from garbage has ...
      Flying cars have ...
      Benign and efficient communist government has ...
      Gas producing algae has ...
      Disease repairing nanobots have ...
      Honest politicians have ...
      Wives and girlfriends who don't want to talk about feelings have ...
      Perfectly cooked bacon has ...
      A winning Detroit Lions team has ...
      A world without war has ...
      Quantum computers have ...
      Nuclear fusion has ...
      Un-losable car keys have ...
      "Happily ever after" has ...

      been a "promise" for decades. Heavy investment and R&D has not yet come close to yielding a product the mass market can make use of. They will be relegated to niche markets unless some tremendous breakthroughs occur.

  14. I'm inclined to agree by sackvillian · · Score: 2, Interesting

    I've seen hundreds of researchers work to try to come up with a car-ready inexpensive fuel cell that's, if not safe, at least not going to level a block during a fender-bender. The conclusion I came to long ago was that the big car makers pursue fuel cells to avoid explaining why they've not pursued (or actively stalled) the development of electric vehicles. The fact is that electric cars have a much, much greater potential to replace internal combustion engines than fuel cells for the near future.

    Even just the fact that infrastructure is basically in place for widespread transportation of electricity and not even on the radar for hydrogen gives electric a huge edge!

    I'm not saying the technology might not prove itself within a few decades, but if half of the fuel-cell resources were placed into improving batteries, electric vehicles would be damn near ubiquitous by now. Would anyone argue that the existing automakers really wanted that?

    --
    Hey mate, spare a sig?
    1. Re:I'm inclined to agree by triffid_98 · · Score: 2

      I'm not saying the technology might not prove itself within a few decades, but if half of the fuel-cell resources were placed into improving batteries, electric vehicles would be damn near ubiquitous by now.

      Really? Did Elon come to your house and ask you to say that? Battery R+D has been going on, they just keep running into energy density limitations vs combustion based designs. It's not like electric cars are some outrageous new idea, we've had them since the late 1800s.

      Forget GM and Ford, think about all of the small lithium powered devices with power hungry chips in them. Most likely you have one in your pocket right now.

    2. Re:I'm inclined to agree by scott9693 · · Score: 1
      You do realise a "fuel cell vehicle" is also known as a "fuel cell electric vehicle? Yes, that's right they make ELECTRICITY not fuel for ICE engines.

      Also, what evidence do you have to state that a fender bender would level a block? Hydrogen isn't that dangerous. Li-ion batteries explode and catch on fire too.

      What Elon is saying is short sighted and arrogant.

    3. Re:I'm inclined to agree by MozeeToby · · Score: 2

      To be fair, the battery technology for a true replacement electric vehicle is just getting there now. And by that I mean one that, with the necessary changes to infrastructure, you can take on a road trip with the same basic level of hassle as a gas powered car. The fact is, the model S has a huge battery in terms of weight and size, using the most effective battery technology available in large scale today, and still barely gets 200+ miles on a charge. Yes, you could drop the performance numbers a bit and improve that, but not by much. And the batteries cost as much as a new Honda.

      There are practical reasons why this round of electric cars looks to be doing better than previous attempts. They are able to get decent range, in a standard form factor, and with decent performance and it's largely because today's batteries hold several times the energy that batteries from 20 years ago did.

    4. Re:I'm inclined to agree by ebno-10db · · Score: 1

      I'm not saying the technology might not prove itself within a few decades

      Toyota will start selling it's hydrogen fuel cell car in 2015.

      The bottom line is that fuel cells work, and hydrogen storage is at least as safe as gasoline. On of the big stumbling blocks is cost. Toyota has managed to reduce the platinum requirement from 100g to 30g.

    5. Re:I'm inclined to agree by ebno-10db · · Score: 1

      To be fair, the battery technology for a true replacement electric vehicle is just getting there now.

      They've been working on battery technology for over a century. They've certainly improved, but not at a dramatic rate. The next big breakthrough is always around the corner.

    6. Re:I'm inclined to agree by Anonymous Coward · · Score: 0

      Not to mention the Honda FCX Clarity which is currently being leased in Southern California.

    7. Re:I'm inclined to agree by Anonymous Coward · · Score: 0

      No, think of chevy and ford, they are the consumerists of technology. They proposed the technology after it became available..It's people like you that want, small cars for small families. I'm not chineese, or 4'3" in height, or 120 pounds. I'm american, a little over average for height and weight. I have tried to be comfortable in an american electric vehicle. And an European, and other national cars. I fit best in chevy/ford/dodge full size vehicles. The seats go back far enough for me to fit in. Sometime technology does not fit all. Then its called options.

  15. Re:Wait... by Anonymous Coward · · Score: 0

    Sadly, I can only upmod you once.

  16. That All Depends... by BlueStrat · · Score: 1, Insightful

    Musk's criticisms depends on the particular type of "fuel cell" under discussion, I would think. There are many architectures & designs, some which only create small amounts of hydrogen & oxygen from electrolyzing H2O which is burned almost immediately internally which have a very low likelihood of causing/starting an explosion or fire.

    There are any number of devices that could be called a "fuel cell". He may be quite correct in his criticisms of what is being currently proposed as automotive "fuel cells". That does not mean a different type/design of "fuel cell" would not be safe & practical.

    It's also somewhat like asking MS's marketing their opinion on the suitability of linux as a replacement for Windows. Musk sunk his money into battery-powered-vehicle tech. You expect a favorable statement about that which could possibly threaten his investments?

    Strat

    --
    Progressivism (aka US 'Liberalism'): Ideas so good they need a police/surveillance-state to enforce.
    1. Re:That All Depends... by jeffb+(2.718) · · Score: 4, Insightful

      Musk's criticisms depends on the particular type of "fuel cell" under discussion, I would think. There are many architectures & designs, some which only create small amounts of hydrogen & oxygen from electrolyzing H2O which is burned almost immediately internally which have a very low likelihood of causing/starting an explosion or fire.

      Sweet! Does it then use the electricity from the fuel cell to electrolyze more water? Or does it perhaps use it to run a fan, which in turn drives a windmill?

    2. Re:That All Depends... by Albinoman · · Score: 1

      Smelled funny to me too. Technically I don't see at as impossible if you aren't shooting for the perpetual motion thing. But, why would anyone build was is essentially a hybrid the other way around?

      Worked with a guy once that insisted that he was gonna build this revolutionary new car that had a few extra alternators hooked to the wheels(?) so it could switch over to electric when it generating enough electricity. I tried going from the perpetual motion angle, to explaining how alternators work, to just the lack of power coming from one. It was one of the most frustrating conversation I've had. Worse than any creation/evolution debate anyway.

    3. Re:That All Depends... by Anonymous Coward · · Score: 0

      Sweet! Does it then use the electricity from the fuel cell to electrolyze more water? Or does it perhaps use it to run a fan, which in turn drives a windmill?

      This is a common response. Instead of jumping to conclusions without more consideration, I propose that there's more to this than is immediately obvious.

      For example, small amounts of hydrogen in existing gasoline combustion engines could be used to improve efficiency for the existing fuel. This is based on the property of hydrogen being the fastest burning gas out there (as measured in 'how long would it take for the flame to reach the other end of a pipe when you light the other end'). Current combustion engines ignite while the piston is still moving up, since it takes time for the combustion to propagate, greater expansion happens with a delay after ignition. Hydrogen added into the fuel mix would improve the combustion speed, which then allows us to time the ignition in a manner that we'd get more energy out of the same combustion as less of it would be fighting against a raising piston.

      As for whether or not this would improve power output enough to warrant producing hydrogen out of the torque produced by the engine itself (which is a lossy process on its own) is another matter entirely. But it's not necessarily a violation of thermodynamics. It's not about getting more power out because there is more fuel (added hydrogen), it's about changing the chemical properties of the combustion (propagation speed), which reduces losses in energy conversion.

    4. Re:That All Depends... by Anonymous Coward · · Score: 0

      It runs a fan that drives a windmill that turns a screw that pumps water over a waterwheel that lights an LED that shines on a solar cell that drives a motor that powers the wheels.

  17. Rocket fuels by Alomex · · Score: 3, Insightful

    'Hydrogen is quite a dangerous gas. You know, it's suitable for the upper stage of rockets, but not for cars,' he said."

    You mean like that other common rocket fuel, gasoline, which is used in the Russian R-12 also known as the Scud missile? Yeap, we would never use that in a car.

    1. Re:Rocket fuels by nojayuk · · Score: 1

      Elon's Falcon 9 rockets use Rocket Propellant 1 (RP-1) as fuel instead of dangerous gasoline.

      Remind me, what's the "snark" tag in HTML5 again?

    2. Re:Rocket fuels by Anonymous Coward · · Score: 0

      and RP-1 is.............kerosene

    3. Re:Rocket fuels by nojayuk · · Score: 1

      So RP-1 isn't gasoline, correct.

      Do YOU know what the "snark" tag is in HTML5? I've not been able to find it on the W3C pages.

    4. Re:Rocket fuels by Zynder · · Score: 1

      Which is not used in most road worthy vehicles commonly known as cars. Just as Musk said- good enough for a rocket, not a car. The man stands by his words. Try harder AC.

    5. Re:Rocket fuels by Anonymous Coward · · Score: 0

      it's easy: <goFuckYourself></goFuckYourself>

    6. Re:Rocket fuels by Anonymous Coward · · Score: 0

      It's still fossil fuel.

    7. Re:Rocket fuels by Anonymous Coward · · Score: 0

      and RP-1 is.............kerosene

      Which is less volatile than gasoline, which is why it's safe enough to use in lamps. Nobody has a gasoline lamp... unless the cabin's insurance policy is worth more than the cabin.

    8. Re:Rocket fuels by garyebickford · · Score: 1

      Well, technically it works fine in some cars. I believe that the US Army has been migrating all of their rolling stock gradually to jet fuel (JP4), which is also basically kerosene. Their goal is to only have to have one fuel in the logistics chain. A quick search gave me several citations that kerosene, which is a bit lighter weight than diesel fuel, can be run in most older diesel engines with a slight loss of power and lubricity). The difference between JP4 and RP1 is that RP1 is much purer and does not contain several impurities that tend to clog up the plumbing in a rocket engine. See the book "Ignition" by John D. Clark, which I cited earlier.

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
    9. Re:Rocket fuels by Zynder · · Score: 1

      There is no car available that was designed to run on kerosene. Sorry. You nor I can just go buy us an MRAP or FMTV. The 50s model Duece I drove in the Army was multifuel. It said right on the tank that it'll burn whatever combustible liquid you pour in the tank and evidently even if they were mixed fuels. It won't run well mind you but it will run. The multifuel concept only really works in diesel cycle engines though. Your cites are correct; older diesels are sought out by modders that wish to run veg oil or biodiesel but that is mainly because they are mechanically simple so there is less to mod or troubleshoot. Finally the military does not have cars. Everything they have made for them is a truck or some variation of a tractor. If they need a car, they buy a Ford Taurus just like the rest of us do. They will not have JP burning cars ever- unless they fund one of the Big 3 to design one and it won't be available to any of us most likely.

      I think you may have your threads mixed up. This thread was started by Alomex who though he found Musk's statement hypocritical but then nojayuk showed that the man stands by his statement: his rockets don't use gasoline nor hydrogen. Then smartass AC pops in with "and RP-1 is.....kerosene" which I pointed out, again, that is great in rockets and shitty in cars and isn't gasoline like Alomex claimed. I didn't see you cite anything anywhere, my apologies (the load comments thingy may have failed to load your post), but you seem to be stating that kerosene is great in cars. Anyone here can demonstrably show you that to be false. There are no kerosene cars available at a dealereship, and you'll be hard pressed to even find a fuel station with a kerosene pump. If kerosene were great in cars, we'd have kerosene burning cars. Hell I think it is cheaper and easier to make than gasoline so you know the bean counters would have already lobbied for the switchover. To even consider that though, you'll have to scrap all Otto cycle engines because I don't think it is physically possible to burn kerosene the Otto way. In the US, it took until the debut of the VW TDI diesel to restart the diesel movement that is still slowly trying to take hold here. We don't get the good Mercedes, BMW, or Toyota diesels the rest of the world gets. Pisses me off really. This applies to cars, we have had shitty diesels in trucks since they were conceptualized. After all of those junk diesel cars in the late 70s and 80s, you pretty much couldn't get one until the TDI came out. As an aside, the same thing happened to turbocharged 4 cyclinder cars- they are just now starting to get popular again.

      So for the 3rd time this thread, Musk is not some kind of hypocritical sham. He thinks hydrogen is shit for a car but fine for a rocket. Look at his cars. Do they use hydrogen? Look at his rockets. They don't use it either.

    10. Re:Rocket fuels by Anonymous Coward · · Score: 0

      Yes, but, if gasoline engines were invented today (and all cars currently used some other technology) I'm pretty sure it never be allowed for being way too dangerous for the average person to work with.

  18. Re:Sorry, But He's a Douche by Iniamyen · · Score: 1

    guard-weasel

    lol

  19. Re:Wait... by Anonymous Coward · · Score: 0

    OMG, peak force. What was the duration of the peak, 0.00025 microseconds?

    Anyone know the peak force that a mosquito exerts while it is biting?

  20. Re:Sorry, But He's a Douche by atlasdropperofworlds · · Score: 1

    He may well be a douch, but he's not the only one out there, and he is doing something that will push us in the right direction. Also, it takes considerable effort to get hydrogen gas from dihydrogen monoxide. Perhaps he knows this already?

  21. Hydrogen is dangerous only because. by Anonymous Coward · · Score: 2, Interesting

    I recently wrote an article on the ability to extract hydrogen from plants and a discovery by Percival Yang but the results of the discovery means that hydrogen can be extracted from plants at almost maximum efficiency in a low cost enzyme based process. Not only did Zang discover a way of way of extracting the hydrogen but he also went out an a limb and suggested another method using hydrocarbon storage of the extracted hydrogen as a method of holding the hydrogen in a safe and easily extractable form of storage. It wouldn't have the ability to go boom with car accidents and wouldn't require huge temperatures to extract the hydrogen. It would be safe or safer than lithium batteries. It would however require a beginning startup period where electric batteries would be required for the first 15 minutes of vehicle operation.

    This discovery met ALL of the long term goals of power density, including an equivalent to 300 to 500 mile power density.

    So in short I think Mr. Musk is wrong.

  22. story is from an agenda blog rag by Anonymous Coward · · Score: 0

    So a blog called "AutoblogGreen" has an entry in which the phrase "giving up the hydrocarbon addiction" is used. Yeah, I'm sure there are no agendas at work there.

  23. Water - Hydrogen - Space by Dark+Fire · · Score: 0

    I believe that using hydrogen for a fuel on a large scale is a terrible idea since it is usually extracted from water and some of it will undoubtedly escape in to space. Over time, all of those leaky vehicles will bleed off more and more hydrogen into space reducing the amount of available water which is essential for weather patterns and life itself.

    1. Re:Water - Hydrogen - Space by Strider- · · Score: 2

      Actually no. Most commercially available hydrogen is produced by steam reformation of methane (natural Gas). Electrolysis of water is far too inefficient to use on a commercial scale.

      --
      ...si hoc legere nimium eruditionis habes...
  24. Re:Sorry, But He's a Douche by Anonymous Coward · · Score: 2, Informative

    While I will agree that Elon has about all the charm and tact of the average fanboy around here I will say that your calling him out over his claims that hydrogen gas is dangerous because hydrogen is an element to be found in water is about as dumb as it gets.

  25. Re:Wait... by SJHillman · · Score: 1

    Why would the duration matter, unless you think cars being impaled from underneath with 25 tons of force for any duration is normal? Who the hell taught you how to drive?

  26. Re:Wait... by atlasdropperofworlds · · Score: 1

    Good thing it hit a battery pack. Considering it was sufficient to go through an inch of metal it would have had no problem impaling the driver of a different car.

  27. Re:Wait... by Grishnakh · · Score: 2

    It was totaled after hitting a large piece of metal at speed. A similar-size gasoline car would have probably killed the driver, and probably caught on fire as well. Did you forget that everyone else is driving around with a tankful of highly flammable liquid in their car?

  28. Filters by Azure+Flash · · Score: 1

    Don't worry if Elon has few filters, everyone else seem to have plenty of filters they are dying to lend him. I'm pretty sure Elon didn't walk up to a reporter and say "Fuel cells are bull at percent bang crunch"...

  29. That word is spelled "bull$#!+" by Anonymous Coward · · Score: 0

    Correcting.

  30. Re:Wait... by Anonymous Coward · · Score: 1
    Obviously, long enough to cause "a curved section that fell off a semi-trailer" to create "a 3 inch diameter hole through the quarter inch armor plate". (3 inches being about 7.6cm, and 1/4 inch being a little over 6mm).

    they are like 1000x times stronger than regular cars and don't damage?

    For any engineered device, there's a level of force that can act on it to damage it. Obviously, the vehicle encountered something that shouldn't be considered a standard road condition, and it handled it better than a vehicle with a gas tank might've under similar circumstances.

  31. Hydrogen might be the solution for aviation by presidenteloco · · Score: 1

    and one of the solutions for large-scale electric power grid storage to accommodate massive expansion of intermittent renewables.

    We have to remember that the rational premise is we need to cut carbon emissions almost totally out of the economy, and fast, so why not experiment with multiple technologies as alternative energy and transportation infrastructure.

    I don't see lithium battery powered intercontinental jetliners on the horizon any time soon do you? And it goes without saying that aviation can't continue to run on fossil fuel.

    --

    Where are we going and why are we in a handbasket?
    1. Re:Hydrogen might be the solution for aviation by Anonymous Coward · · Score: 0

      the rational premise is we need to cut carbon emissions almost totally out of the economy

      That's not a rational premise. That's a statement of enviro-religious dogma.

      aviation can't continue to run on fossil fuel.

      Why not?

      You need to get over your environmental anxiety. The free market will sort out any problems with energy use and production so long as enviro-bedwetters and rent-seekers don't keep trying to get govt to push whatever particular tech the enviro-bedwetters and rent-seekers are obsessed with at any given moment.

    2. Re:Hydrogen might be the solution for aviation by WillAffleckUW · · Score: 1

      Actually, jet fuel distillate is near the top of the column, so to produce jet fuel from crude oil, you have to - not should, MUST - produce tar, diesel, natural gas, and kerosene.

      See, if it was just jet fuel, with improvements in fuel usage like the 787 that uses 20 pct less fuel to go the same distance, or turboprops which use half the fuel, that would be one thing, but to create jet fuel, we have to create ... all the other material.

      One of the reasons people are trying to create biofuels for air travel is to select it so that almost all of the distillate is actually jet fuel - using oil, this is never the case.

      --
      -- Tigger warning: This post may contain tiggers! --
    3. Re:Hydrogen might be the solution for aviation by presidenteloco · · Score: 1

      I said the rational premise,
      as opposed to potty-mouthed 8 year old's tantrum premise that you have so eloquently stated in your rebuttal.

      The free market would sort it out, if we could figure out how to change people so they value the future in the 50 to 100 year increments by which we are affecting it with the scale of our unregulated activity globally. Unfortunately, individual lifespan mitigates against giving a damn, it seems, for most people.
      But if we can't change human nature to care enough to act responsibly on these things and let everyone sort it out in a market, then those who are aware and care need to take charge. There is no room for democracy on a ship headed toward the falls, especially when people are typically arguing about (or deciding in a free market) what color the party favor napkins in the ship's dining hall should be.

      http://www.ipcc.ch/ for thousands of relevant-topic PhDs' views on the subject of greenhouse-gas induced global warming and measures needed to counter it.
      They all had to go through thesis-defense and peer-review before being considered credible on the subject. What's your defense?

      --

      Where are we going and why are we in a handbasket?
    4. Re:Hydrogen might be the solution for aviation by Anonymous Coward · · Score: 0

      using oil, this is never the case

      And that's a problem, why? Higher molecular weight fractions all have their uses. Tar is used to make asphalt. Diesel is used to fuel certain high-torque engines. Natural gas is used for cooking and power generation. Kerosene is used in Coleman camping stoves. I have nothing against the development of biofuels or the use of any other energy source. The problem I have is the politicization of energy production. Let the market sort things out that way tax dollars aren't wasted on expensive giant windmill projects that are shut down after producing little more than cost overruns and politicians don't get to funnel tax money to cronies who set up solar energy companies without viable business plans in order to get campaign contribution kickbacks.

      90% of the "green economy" narrative is just to provide an excuse for political corruption. Disgustingly, govt-run schools are indoctrinating their captive charges to believe that "green energy" is some grand and noble cause. It is difficult to de-program the youngins after they have been spoon-fed political bull dooky for a decade or more.

    5. Re:Hydrogen might be the solution for aviation by WillAffleckUW · · Score: 1

      Yet the use of these all pump carbon into the atmosphere, accelerating climate change.

      You know, the stuff that's making Australia burn, the south become hotter in summer, the glaciers to melt, and killing US crops and causing massive pollution in China which spreads to the western coastal US.

      I never said there were no costs to energy - all forms of energy have downsides - all of them. Sticking your head in the tar sands ceased being an option sometime in the last decade. Wake up and smell the shade-grown coffee.

      Btw, we in the West are producing more GDP in WA OR and CA than the rest of the USA is, because we have cheap energy, primarily from those cheaper hydro, wind, and solar sources you're so hell-bent against. We subsidize ... you.

      --
      -- Tigger warning: This post may contain tiggers! --
    6. Re:Hydrogen might be the solution for aviation by Anonymous Coward · · Score: 0

      Err, what? Jet-A *is* kerosene.

  32. Re:Sorry, But He's a Douche by Anonymous Coward · · Score: 1

    Top Gear maliciously reviewed his car. They editorialized a perception about his car. Calling it a "comedy show" does not invalidate their motive.

  33. Elon Musk went on to say.. by Lohrno · · Score: 1

    Elon Musk went on to say that Biofuels are cocksuckers, he did Clean Natural Gas's mother and compressed air vehicles lick donkey balls...

  34. Quandary by nojayuk · · Score: 4, Informative

    As much as I regard Elon as a self-aggrandising pillock, I have to agree with him here.

    The perfect fuel cell as used on spacecraft and the like burns hydrogen and oxygen to produce electricity, heat and water. Fuel cells intended for use on Earth use air rather than pure oxygen for logistical reasons, air is all around us after all, and the resulting exhaust contains nitrous compounds as well as water. Sometimes the NOx, nitric acid etc. corrodes the red-hot fuel cell catalysts which can be an expensive bummer.

    Fuels used in fuel cells can range from hydrogen up through assorted hydrocarbon fuels like butane, ammonia, oddballs like dimethyl ether and the like. Adding carbon gets more energy per kilo of fuel but adds CO2 to the exhaust and possibly traces of other interesting chemicals like CO, cyanogens, dioxins etc. and may cause more damage to the catalysts in conjunction with the NOx compounds.

    Hydrogen is a piss-poor fuel for vehicles. It's low-density per joule stored, damages ordinary steels through hydrogen embrittlement and in gas form leaks very easily through joints, gaskets and even through the metal walls of containers given a chance as hydrogen is the smallest molecule known, the escape artist of the periodic table. Liquefying it is energy-intensive, it has to be kept very cold and LH2 is also very low density, the least dense liquid known in fact.

  35. Comment removed by account_deleted · · Score: 5, Funny

    Comment removed based on user account deletion

  36. This guy is really taking on the Starks persona by GodfatherofSoul · · Score: 1

    Kind of a life mimics art thing. I wonder if he'll go for the Downey Jr. pirate goatee?

    --
    I swear to God...I swear to God! That is NOT how you treat your human!
  37. And compressed hydrogen... by Anonymous Coward · · Score: 0

    ...comes from magic fairy farts collected on hobby farms.

    1. Re:And compressed hydrogen... by Zynder · · Score: 2

      That's complete bullshit! Everyone knows that fairies don't fart. Those are unicorn farts my boy!

    2. Re:And compressed hydrogen... by X0563511 · · Score: 1

      Close enough.

      You still have to get power for the process, but there's ways to do that easily and this centralizes the pollution. As a side effect, you get O2 - which is used for, well, tons of things.

      --
      For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
    3. Re:And compressed hydrogen... by Anonymous Coward · · Score: 0

      Bullshit! Have you never seen a fairy fly straight?

  38. You can't compare LPG to H2 by Anonymous Coward · · Score: 0

    Hydrogen is much more difficult to store than liquified petroleum gas. Why? Well, _liquified_ petroleum gas is a liquid, it is energy dense and the pressures required for storing it are reasonable. Hydrogen doesn't liquify easily, storing it involves usually involves compressing it to hundreds of atmospheres of pressure, and the energy density is still low compared to liquid hydrocarbons. Since the molecules are tiny, they will also escape surprisingly easily.

    1. Re:You can't compare LPG to H2 by Anonymous Coward · · Score: 2, Insightful

      storing it involves usually involves compressing it to hundreds of atmospheres of pressure

      I'm not sure where to put this post, but here seems to be a reasonable choice. What many people who are complaining about fuel cells or hydrogen fuel cells in particular are missing is that there are many schemes to use hydrogen fuel cells that avoid many of the problems mentioned. For instance, there has been a lot of work done to develop H fuel cells which contain a solid material with a very high surface area, swiss cheese, zeolite-like structure which reversibly absorbs hydrogen gas. Some of the potential benefits of this are

      1) The H is stored at a condensed phase density at relatively low pressures and at normal temperatures.
      2) The cell could provide a controlled release of H at a rate that is suitable to run an engine, but not so great as to cause a great risk of explosion.
      3) Because the hydrogen is absorbed in a solid material, even if the fuel cell is violently ruptured, it would not rapidly release a large quantity of hydrogen making the cell potentially much safer than many other competing techs in the event of a vehicle collision.
      4) Storage of the hydrogen at low pressure in a zeolite-like material would dramatically reduce the problem of hydrogen diffusion causing brittleness in the fuel cell outer casing.
      5) A vehicle which runs on fuel cells could be designed to be refilled by simply swapping out fuel cells, making refilling very quick, safe and convenient.
      6) The use of fuel cells to store H means that there need not be hydrogen pipelines built everywhere. Cells could be refilled at a remote power generation station, at a nuclear plant in Baja CA which hydrolyzes sea water for example and then distributed using existing road and track infrastructure. Empty cells could be collected and shipped back the same way. Existing filling stations could be updated with simple dispensing and collecting racks for the full and empty cells.

      Obviously, such a H fuel cell does not yet exist, but I thought I would mention the idea just so people don't get too side-tracked by the idea that there would necessarily have to be massive new infrastructure built to accommodate fuel cells.

      captcha: prophesy

  39. Re:Sorry, But He's a Douche by crutchy · · Score: 0

    He needs a bigger lobby presence in Washington DC to get any traction in the US auto market. You don't honestly think there's any kind of free market operating in the US at the moment do you?

    Musk would probably have more success if he moved his entire business to the arguably more capitalist economies of Russia or China.

  40. Re:Still internal combustion by Anonymous Coward · · Score: 0

    There's already water dripping out of the tailpipe of your gas/diesel engines, a whole bunch of it. Somehow life goes on.

  41. Re:Sorry, But He's a Douche by Nemyst · · Score: 4, Insightful

    He's got a massive ego, there's no denying it, but your rebuttal is quite terrible. The whole fiasco surrounding Top Gear was bad, but the Top Gear guys have their fair share of the blame: they did do this so that the car would end up behaving as they wanted it to behave (ie. badly), not as it actually did. It may be comedy, but it's still misrepresentation, and we are all fully aware that electric cars (or basically anything but a fuel car) is going to have to fight an uphill battle for adoption, so why make it harder for no good reason beyond your own obstinate vision of a car being noisy, gas guzzling machines?

    Likewise, I don't recall him making excuses for the car's performance, either the Roadster or the S. There's been a lot of talk about both models and sometimes expectations went a bit overboard. They have a lot to prove, so they're going to defend their product tooth and nail, which honestly is to be expected (and if it were somebody you liked, you'd be the first taking their defence for being gutsy).

    Lastly but most importantly, his wrestling with car sales rules in many states is undeniably good. These rules have been bent and twisted to hell and back by the incumbent auto makers and their dealers to make it nigh impossible to compete with any other business model. For a place like Slashdot, with so many promoters of the "FREE MARKET", this thing should cause almost unanimous uproar. Tesla wants to cut costs on incumbent, useless, overpriced dealerships and modernize how cars are delivered, supported and maintained. It may work, it may not work, who knows? Regardless, however, laws shouldn't be designed to stack everything against that model in such a fashion, and saying that it's just whining and not a serious concern is childish at best, utterly irresponsible at worst.

  42. Comment removed by account_deleted · · Score: 4, Informative

    Comment removed based on user account deletion

  43. Re:Sorry, But He's a Douche by CanHasDIY · · Score: 1

    Well it sure as hell ain't a ferret!

    --
    An enigma, wrapped in a riddle, shrouded in bacon and cheese
  44. Jetsons weigh in by Tablizer · · Score: 1

    'Hydrogen is quite a dangerous gas. You know, it's suitable for the upper stage of rockets, but not for cars,' he said.

    But the end-goal is flying cars, no? (Intentionally flying, that is. Not like a rear-ended Ford Pinto.)

  45. Re:Sorry, But He's a Douche by Anonymous Coward · · Score: 0

    he's a capitalist, therefore he's in it for the money. If altruistic progress was his goal he'd be selling Teslas at a loss just to get them in the hands of the people who would benefit the most.
     
    Well, if he sold them "at a loss" he wouldn't be building them for any real amount of time. His high end selling scheme is what's going to bring more R&D dollars to someone who's actually in seeing this succeed. I'm not saying other automakers aren't interested in it but he has invested more of himself in this than anyone else at this point in time. That at least gets him a tip of the hat.
     
    But while we're having this discussion, I'll bite and at point that you were maybe trying to make.... who exactly would be the people who would benefit the most from this that he should allow his business to fail? Who is so important that his vision and his livelihood is worth sacrificing that for?

  46. Oh dear. by Anonymous Coward · · Score: 0

    We haven't managed to find a way to produce energy from fossil fuels quickly without generating heat either.

    If THAT is going to be the hurdle to climb, then cars are impossible already.

    1. Re:Oh dear. by Teancum · · Score: 1

      It isn't transferring energy that is the question here, it is transferring the "fuel", which doesn't need to be heated during that transfer (at least not to high temperatures). Unfortunately, when you transfer electricity it must either be used immediately or put into some storage mechanism... and that usually produces a whole lot of heat in the process.

      Pouring gasoline into a gas tank most definitely doesn't produce a whole lot of heat.

  47. Always Good by NotFamous · · Score: 1

    It's always good to have a neutral party weigh in on the issue. Now we know.

    --
    Some settling may occur during posting.
  48. Re:Hydrogen is indeed quite dangerous... burn wood by mspohr · · Score: 1

    I don't think hydrogen would offer much competition but he should look out for this guy:
    http://driveonwood.com/

    --
    I don't read your sig. Why are you reading mine?
  49. body of the subject by Anonymous Coward · · Score: 0

    Even smart people say stupid things.

  50. Fast food to go by tepples · · Score: 1

    Besides, what's wrong with waiting an hour? You need to stop for food anyway, so if you can recharge at or near the place you stop to eat, then you're not losing any time.

    That's true if you're going to a restaurant like Bob Evans or Steak 'n Shake. But I'd be surprised if the six minutes spent waiting for carry-out at a quick-service workaurant is near long enough to recharge the battery.

    1. Re:Fast food to go by Grishnakh · · Score: 1

      Someone who has $108k for a Tesla Model S isn't going to go to McDonald's for food. And anyone with half a brain should know better than to eat there, given the horrible quality of their food and what it does to your body.

    2. Re:Fast food to go by Guspaz · · Score: 1

      If memory serves, superchargers can give do a 50% charge (150 miles) in 20 minutes; the plan is for people who need it faster to do a battery swap (would would take much less than your six minute pitstop) at a cost based on local gas prices.

      You're not going to be emptying a model S battery during anything but long-distance driving, though, and you're going to start each day with a full charge, so your scenario of a 6-minute carry-out isn't going to be realistic unless you intend to consume that meal while driving the car.

    3. Re:Fast food to go by tftp · · Score: 1

      Many of those people who are willing to splurge on a Tesla are not old, fat robber barons in black hats who have five drivers and seventeen butlers. Those don't care to know what car they are riding in, as long as it is a limo with a mobile office, complete with three satellite phones and a secretary.

      Tesla buyers are often young, self-made professionals who have enough money to buy what they want while they are young and healthy enough to enjoy it. Those people do not drop their work just because they have 300K or 500K in the bank, and a Tesla, and a house. Those people, by definition, are busy. While it may be healthy to do fine dining, oftentimes you cannot stop at an eatery for an hour or two. You buy the best of what's available, eat it quickly, and go back on the road.

    4. Re:Fast food to go by borcharc · · Score: 1

      You must never go on road trips, there are few options for gourmet food, you are just eating whatever you can so you can continue to function, regardless of what you drive or how much money you have.

    5. Re:Fast food to go by Grishnakh · · Score: 1

      I generally stop at Whole Foods supermarkets to eat on road trips. They usually have nice hot bars with a good selection of quality food which doesn't cost a fortune (though still more than the crap at McD's).

      Otherwise, Google Maps usually works well for finding someplace decent to eat.

      And of course, it's a good idea to bring some food with you, just in case there isn't anything decent open when you need it.

    6. Re:Fast food to go by KevReedUK · · Score: 1

      Besides, what's wrong with waiting an hour? You need to stop for food anyway, so if you can recharge at or near the place you stop to eat, then you're not losing any time.

      That's true if you're going to a restaurant like Bob Evans or Steak 'n Shake. But I'd be surprised if the six minutes spent waiting for carry-out at a quick-service workaurant is near long enough to recharge the battery.

      Good point, BUT... You forget that with traditional gas refuelling, as well as 7-10 mins queueing up for your takeout, you also have to spend 3-5 mins standing next to your vehicle while the gas pumps into the tank... add the two together, and you're already more than halfway to that magic 20 minute timescale (which is only likely to get smaller as charger/battery tech improves... when was the last major improvement in gas refuelling timescales?!?)...

      --
      Just my $0.03 (At current exchange rates, my £0.02 is worth more than your $0.02)
  51. Hold on and lpg is not a gas ? by Anonymous Coward · · Score: 0

    Milliones of cars in Europe and south america run bu my knowledge on lng and...... In carbon reinforced plastic bottles !!!

    Whats the difference???

    We build complete ships that run on lng and up to now i haven`t seen a single vehicle explode

    So I think the the excrement of the male bovine is in fact Elons comment

  52. Re:Wait... by Anonymous Coward · · Score: 0

    0 psi. That's because a mosquito doesn't 'bite'. The pressure to pierce human skin is on the order of approximately 1000 psi, but the mosquito doesn't have to puncture an entire square inch of skin (more like .25 square mm), so it's going to take significantly less force to do so.

    Using those ball-park figures, the mosquito needs somewhere on the order of 1/2500 of that force, or .25psi.

    Generally speaking, however, the duration of the peak force doesn't matter. If the peak force is strong enough to puncture a material, the material will be punctured no matter how short the duration of that peak force.

  53. lithium aluminum hydride battery makes hydrogen by Anonymous Coward · · Score: 0

    His batteries have been marketed as lithium ion, but the name of the stuff inside is lithium aluminum hydride. Hydride is hydrogen with an extra electron near it, and is unstable on it's own. Did you see the video of the tesla car batteries burning? Have you seen videos of other lithium batteries burning? That is a hydrogen fire son. But even worse, that is a hydride fueled hydrogen fire, so the hydrogen is already more reactive than normal. Elon's super safe batteries do not contain the burning runaway hydrogen reaction inside their individual cases as they have tried to say. Obviously that car burned up instead of the few busted battery cells burning out in a contained way.

  54. Not all workaurants suck by tepples · · Score: 1

    Someone who has $108k for a Tesla Model S isn't going to go to McDonald's for food.

    I know. I was thinking of a workaurant whose food doesn't completely suck, like Wendy's or Chick-fil-A.

    given the horrible quality of their food and what it does to your body

    Is this likewise true of Subway?

    1. Re:Not all workaurants suck by Anonymous Coward · · Score: 0

      Is this likewise true of Subway?

      I can't speak for things being done to bodies, but horrible quality of food?

      Subway is terrible, and people who eat there should feel terrible, because it's clear they have no idea what a sandwich is.

  55. Duh. by Cyberax · · Score: 1

    Everyone in the industry knows that hydrogen fuel cells are just a gimmick. Let's enumerate some of the problems with them:
    1) Hydrogen can't be piped through pipelines of any non-trivial length. Well, technically you can make hydrogen leak-proof pipeline but then you can burn dollar bills for heating.
    2) Hydrogen is difficult to transport in the liquid form. It has to be cooled by liquid helium or you have to vent the hydrogen vapor. Which is explosive in a wide range of concentrations.
    3) Compressed hydrogen storage has very low volumetric density. You can _just_ squeeze enough of tank space in your average car and get a usable mileage, but using it for tanker trucks? Forget about it.
    4) Oh, and fueling stations must also be pretty high-tech. You have to store liquid hydrogen and fuel tank adapters are awesomely complex. And the number of hydrogen stations in the US is smaller than the number of Supercharger stations.
    5) Hydrogen fires are SCARY. Hydrogen does NOT just "drift up and burn away" - it burns at a temperatures high enough to _melt_ _steel_ and give you third-degree burns from thermal radiation while you are several meters away from the ignition source.
    6) It's actually cheaper and easier to burn methane (natural gas) in regular combustion engines than to use it for hydrogen production with all the associated transportation headaches.
    7) Fuel cells themselves are now much cheaper than 10 years ago, but they are still FAR more expensive than batteries.

    1. Re:Duh. by Anonymous Coward · · Score: 0

      Everyone in the industry knows that hydrogen fuel cells are just a gimmick.

      Which industry is that exactly? Read #45217693 and marvel as your straw men burn like a frat rat's farts. Hydrogen fuel cells are an area of research that is worth continued exploration. Might not be *the* big answer at the end of the day, but reasonable to continue working on.

    2. Re:Duh. by Rising+Ape · · Score: 1

      1) Hydrogen can't be piped through pipelines of any non-trivial length. Well, technically you can make hydrogen leak-proof pipeline but then you can burn dollar bills for heating.

      Before natural gas became wideley used it was common to pipe "coal gas" into people's houses. That was typically ~ 50% hydrogen. Does piping pure hydrogen present that much more of a challenge?

    3. Re:Duh. by Cyberax · · Score: 1

      I worked at alternative fuels investment company... Yes, even hydrogen cell researchers know that automotive hydrogen fuel cells are not going to be viable. They might be great for portable power or for backup power.

      As for the post you've mentioned - why not imagine cheap and reliable nuclear fusion? Or maybe batteries with 10x capacity over the current ones? Both look more realistic. So far, research hasn't yielded any decent hydrogen storage that can rival in density even the compressed hydrogen storage.

  56. danger of H2 by DriveDog · · Score: 1

    One of the problems with hydrogen so far as its combustibility goes is that it will burn in a very wide concentration ratio, something like 5% to 95% in air, IIRC. Most other fuels have at least somewhat narrower ranges.

    Storing H in compressed metal hydride tanks works and might someday have reasonable mass/volume/energy ratios, but the real problem is that it's only an energy carrier, not a source, and mass production means of getting from an energy source to H2 haven't come anywhere close to being as efficient as, say, just burning CNG. Hobbyists might electrolyze water with power from PVs, and while that's fun and all, it isn't going to satisfy the masses. Transporting electricity from production to storage in your car, given the infrastructure we already have, is a lot easier than building a brand new infrastructure to distribute some form of hydrogen. So, yeah, Musk is just protecting his business model, but the reality is that H2 is unlikely to go anywhere anytime soon, and batteries are already becoming ubiquitous.

  57. CEOs are so bullshit by BitZtream · · Score: 1

    So let me get this straight ... guy who uses technology A exclusively ... says alternative/possibly competing technology B is bad, except when he uses it on his other projects ... FILM AT 11!!!

    Seriously, who the fuck cares what Musk says, he didn't design the Tesla or anything in it. He's not an expert in the field, he's just a guy who had some money from a company he started that just happen to be in the right place at the right time, and that company was a pretty shitty one that only made money due to timing and dumb luck. Then he started a couple new companies with the ridiculous amount of money he made by idiots buying stocks. He has a fuckton of engineers all talking in his ear telling him things and then he goes out, mixes it up a bit and puts a spin on it so he's products come out rosy and everyone else products are shitty.

    How is this news for nerds? This is news for wall street groupies who aren't smart enough to follow the actual technologies involved and instead listen to the company sales leaders, I'm sorry, CEO.

    --
    Persistent Volume manager for Kubernetes - https://github.com/dwimsey/openshift-pvmanager
    1. Re:CEOs are so bullshit by garyebickford · · Score: 1

      That's also pretty much what Edison did, btw.

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
  58. Re:Wait... by danomac · · Score: 1

    The vapour is far more dangerous than the gasoline itself, especially in situations where heat can cause pressure to the point of rupture. If there's a suitable ignition source nearby: BOOM.

  59. Take it from a fuel cell engineer - they are BS by Anonymous Coward · · Score: 1

    Disclaimer: I designed fuel cells and fuel reformers for both home and automobile applications.

    Fuel cells ARE BS and here's why. 1) fuel cells require hydrogen, that's not exactly an easy gas to manufacture, store, and transport. 2) fuel cells and their associated fuel reformers rely heavily on platinum as a catalyst for the water gas shift reaction - there isn't enough platinum in the world to put a fuel cell and reformer in every car and home in America. 3) the technology is super reliant on clean fuel inputs - for example, the tiniest bit of sulfur will wreck a fuel cell stack in seconds 4) they aren't cheap - a 1KW fuel reformer and associated fuel cell could easily run around 150k even considering mass production options (and a stable platinum supply) "ain't nobody got time for that" :)

    Fuel cells are great for specialty applications - like the space shuttle, like laboratories, MAYBE for public services (bus fleets, powering public buildings, etc.) But nowhere near feasible to put one in everybody's automobile - that's just crazy talk. The fuel cell industry is all smoke and mirrors my friends - they are just making pretty presentations to suck the venture capital out of rich men's pockets.

  60. Re:Sorry, But He's a Douche by CanHasDIY · · Score: 1, Troll

    He's got a massive ego, there's no denying it, but your rebuttal is quite terrible. The whole fiasco surrounding Top Gear was bad, but the Top Gear guys have their fair share of the blame: they did do this so that the car would end up behaving as they wanted it to behave (ie. badly), not as it actually did. It may be comedy, but it's still misrepresentation, and we are all fully aware that electric cars (or basically anything but a fuel car) is going to have to fight an uphill battle for adoption, so why make it harder for no good reason beyond your own obstinate vision of a car being noisy, gas guzzling machines?

    Malarkey - I've actually seen the episode, and not only do they not put the car through anything more rigorous than other cars tested, Jeremy Clarkson (you know, the guy who would rather have his testicles eaten by a million angry bees than compliment an electric car) actually praised both the car and the company at the end of the show.

    Not to mention, a wheel really did lock up at speed and almost kill the Stig, which Tesla readily admits did happen.

    Likewise, I don't recall him making excuses for the car's performance, either the Roadster or the S. There's been a lot of talk about both models and sometimes expectations went a bit overboard.

    So, he did but didn't overspeak the features of the vehicle then renege? Not really 100% what you're trying to say here.

    Lastly but most importantly, his wrestling with car sales rules in many states is undeniably good.

    In reference to the Texas fiasco, no - it would be undeniably good if he was trying to get the law changed because it's wrong, but that's not the case - he was trying to get a special exception made for his company, and fuck everyone else.

    Just like one would expect from a self-serving capitalist.

    --
    An enigma, wrapped in a riddle, shrouded in bacon and cheese
  61. expensively. oil comes from dirt by raymorris · · Score: 2

    An electrolysis rig and $200 of electricity will get you $40 of hydrogen, yes.

    Oil comes from dirt. What's the point?

    1. Re:expensively. oil comes from dirt by kenshin33 · · Score: 1

      I meant electrolysis not hydro... , and it was a simple honest question, no point.

    2. Re:expensively. oil comes from dirt by TapeCutter · · Score: 1

      H2 is made in commercial quantities from "cracking" fossil fuels. Splitting water with electricity is more expensive but if your source of energy is clean then there's no GHG problem with the technology on a large scale. Reducing GHG emissions is the main reason for all the interest in electric cars.

      *cheap - For certain definiens of "cheap"

      As someone rightly pointed out above, the current problem with hydrogen is not technical, not safety, not environmental, it's economic, it's our own human system that is shooting us in the foot. Personally I think that can be fixed by capitalism provided the market (rules of trade) punish polluters rather than reward them as they do now. - The "tragedy of the commons" in a nut-shell, if we can create a set of rules (a market) that efficiently rewards corporations for screwing up our little blue spaceship's life support systems, surely we could find a set of rules that reverses that trend. If not then (collectively) we are no smarter than a jar of fermenting yeast.

      --
      And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
    3. Re:expensively. oil comes from dirt by Jeremi · · Score: 1

      As someone rightly pointed out above, the current problem with hydrogen is not technical, not safety, not environmental, it's economic

      Speaking of which, IIRC one of the problems with fuel cells is that they're expensive. Have things improved on that front since the last time I checked, or are the research fuel-cell cars I occasionally see driving around still costing their manufacturers $500,000 each? (Because I don't think they will ever sell very many at that price ;))

      --


      I don't care if it's 90,000 hectares. That lake was not my doing.
    4. Re:expensively. oil comes from dirt by TapeCutter · · Score: 1

      Sorry, I don't follow the subject that closely. As far as I know it's still only Jay Leno who can afford a decent fuel cell car but the economics is (reportedly) much better for BMW / Mercedes(?) Buses & trucks. People who buy private electric cars now are not generally motivated by the cash price. For example Jay Leno also has a 1907 electric car. ;)

      --
      And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
  62. Re:Wait... by Anonymous Coward · · Score: 0

    Generally speaking, however, the duration of the peak force doesn't matter. If the peak force is strong enough to puncture a material, the material will be punctured no matter how short the duration of that peak force.

    False. The total energy of an impact is very much relevant and that involves duration as well as peak force.

  63. Re:Sorry, But He's a Douche by atlasdropperofworlds · · Score: 1

    Is Elon any worse than any of the other Car CEOs out there? You know, the ones who push out the same overcomplicated machines with slight year-over-year refreshes, and put in place schemes to keep people wanting more, and which use a black, tar-like substance which is mainly gained from drilling under the ocean, or in war-torn countries, or by strip-mining the countryside? Every time I see any care I see a big-ass pile of heavily polluting blood minerals, and gasses, and damage, and that damage continues as long as those cars operate.

  64. 2 lbs of H2 alternator 1 lb of H2. CnH2n by raymorris · · Score: 1

    The alternator would be powered by the engine, right? The engine is powered by the hydrogen. So you'd be burning hydrogen to make hydrogen.
    Is that what you mean? If that's what you have in mind, it'll "work", you just have to burn two pounds of hydrogen to get the electricity to make one pound.
    I suppose it's an interesting, Rube Goldberg, way to get rid of hydrogen.

    You can make the hydrogen, H2, much more energy dense and easier to handle by combining it with another element or two.
    Plants and animals are powered by a hydrogen based molecule of the type Cm(H2O)n, meaning two hydrogen molecules combined with one oxygen molecule, bound to some number of carbon molecules. Having the oxygen in there is a waste of space, so you could take that out and power a car with CnH2n.

    CnH2n has seven times better mileage than H2, and is found in nature, so it doesn't have to be made via electrolysis or any other method.
    It burns well in an engine, but doesn't explode. The "n" in that formula stands for any of many different numbers that will work. For example,
    C8H18 is quite good. It makes for pretty efficient engines because it's 100 octane rating allows for a 10:1 compression ratio. In general, the
    CnH2n group is called "hydrocarbons". C8H18 is octane, a primary component of gasoline.

  65. Remember, cars burn up all the time by WillAffleckUW · · Score: 1

    In fact, it's part of why the movie Rush is so cool.

    --
    -- Tigger warning: This post may contain tiggers! --
  66. Re:Sorry, But He's a Douche by WillAffleckUW · · Score: 1

    See, thing is, if you could just put an industrial electric turbine in a car, and then have some space left over for a passenger or two and some batteries, an electric car technically could go much much faster than a gasoline car.

    It wouldn't go very far, though, but it would be a sweet sweet ride.

    And since most people commute less than 10 miles to get to the office, this sounds like a pretty good deal if you live in an area where electricity comes from sources other than coal, oil, or natural gas. Wind turbines could charge fleets of these supercars up, and then we could all have an electric rocket supercar to get to work in.

    Provided you didn't care about traffic laws, mind you.

    --
    -- Tigger warning: This post may contain tiggers! --
  67. Electric car range by coyote_oww · · Score: 1

    Range is less of an issue for childless couples and single people. When you have a family and aren't wealthy, long car trips become the only affordable way to travel. But then, Elon isn't selling to that demographic.

  68. Re:2 lbs of H2 alternator 1 lb of H2. CnH2n by kenshin33 · · Score: 1

    well, diverting some of the energy to power the alternator, it doesn't have to be a perpetual motion (which is supposedly impossible). just a way of extending, if a tank will run out in X hours or X miles if left alone without additional production, it'll run out in Y hours/ Y miles (where Y >> X), at that point you'll have to fill it in some way or an other (just like with ICE cars, gas stop). or what you said :)

  69. French fries in the cup holder by tepples · · Score: 1

    so your scenario of a 6-minute carry-out isn't going to be realistic unless you intend to consume that meal while driving the car.

    Guess what ends up happening on family road trips. Burger King even designed its paper cups for French fries and chicken fries to fit in a vehicle's cup holder.

    1. Re:French fries in the cup holder by Guspaz · · Score: 1

      OK, then use the battery swap option.

  70. Electric cars are so bullshit by Powercntrl · · Score: 2

    68% of the power in the USA is generated by fossil fuels. source It's why you can half jokingly refer to electric cars as "coal cars", since they're essentially filling up with 37% coal-derived electrons. The lithium ion batteries come with their own environmental costs during their creation, as well. The primary function of today's electric cars is to perform an "out of sight, out of mind" on your carbon footprint. Tesla's cars are toys for rich people who as kids, cleaned their room by shoving everything under their bed.

    --

    ---
    DRM is like antifreeze, to the MPAA/RIAA it's sweet, to the consumers it's poison.
    1. Re:Electric cars are so bullshit by presidenteloco · · Score: 1

      Did you not get the memo that the US needs to shift its electricity generation mix to non-GHG-releasing methods in a frickin' hurry?

      And no that is not optional.

      So why not assume that shift in your calculations, assuming also that the shift is helped along by the rest of the international community putting a boot to the behind of the laggard countries.

      --

      Where are we going and why are we in a handbasket?
    2. Re:Electric cars are so bullshit by garyebickford · · Score: 2

      And no that is not optional.

      Sure it's optional. It may or may not be a good idea (that's a separate topic), but the choice is pretty plainly available. Considering that when dinosaurs roamed and ferns grew 20 feet tall and dragonflies had two foot wingspans, the mean global temp was from 3 to 10 degrees hotter than it is now, and Antarctica had trees growing on it, it's not all bad. Things might be kinda tough for most of us humans and probably a lot of other species, but there are encouraging indications that the increased CO2 is causing the deserts to green up. Interestingly, levels of O2 and CO2 also seem to be a big influence on the size of insects, so those big dragonflies may not even be an evolutionary process.

      OTOH, we may be well on our way into another ice age, and the CO2 (along with cleared land, which has been shown to have a large warming effect that dates back to 3000 years ago) may be preventing us from descending into a new episode of ice a mile thick over New York City.

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
  71. How is this news? by twotacocombo · · Score: 1

    Guy selling a product says competing technology is inferior and may, in fact, set the world on fire. Maybe if an independent third party came forth and empirically proved that x was better than y, I'd listen.

  72. cool. I didn't want to miss the point. by raymorris · · Score: 1

    Cool. I wondered if I was missing the point.

  73. I had to think twice, but no, except braking by raymorris · · Score: 1

    I had to think that through myself, but I'm pretty sure that wouldn't work.
    To power the alternator requires more power from the engine. More power means burning more fuel. So 2 lbs MORE hydrogen burned to make one pound.

    If it's NOT powered by the engine, but instead uses energy you're trying to throw away, that could work. The only energy I can think of you'd want to throw away when be when you're braking . You'd connect it to the brakes, not the engine .

    Still it would probably be more efficient to store the braking energy by compressing a gas or in a high speed flywheel, as in a toy friction car . It could theoretically work, though.

    1. Re:I had to think twice, but no, except braking by kenshin33 · · Score: 1

      the question is, how much does the engine produce, how much is needed to propel the vehicle. ICE do it relatively well (alternator and much of the pumps -mechanical and electrical) but at the expense of MPG. may be by adding something to the breaks it would be better
      all in all it looks like a differential eq which has a solution ... now is it practical or not I can't say (I'm no expert in chemistry).

  74. Re:Sorry, But He's a Douche by Anonymous Coward · · Score: 0

    Saying "I know this goes 100% against the Slashdot groupthink" IS the Slashdot groupthink.

  75. businessman puts down the competition! by Goldsmith · · Score: 1

    News at 11...

    Musk is a guy who rightly saw his physics career was going nowhere and switched gears to something much more useful and profitable. The trade off is, he can't make statements like this and be taken seriously. Even if he's right about something technical, his history is that his business interests come first.

  76. Its still just a battery by Anonymous Coward · · Score: 0

    This still doesn't solve the problem that it is still just a very fancy battery for your electric car. Call back when the chemical processes you are talking about have the same round trip efficiency on store and release energy as a LI battery.

  77. Re:Sorry, But He's a Douche by Anonymous Coward · · Score: 0

    a big-ass pile of heavily polluting blood minerals

    As opposed to a big-ass tank of liquid heavily polluting blood minerals?

  78. He's right by MobSwatter · · Score: 1

    Hydrogen that is pumped into a fuel cell to mix with air to produce electricity in a motor vehicle is "bull@%!#" for two reasons, it competes with his business model and requires storage of hydrogen in large quantities which is not entirely the best thing unless it is stored like the United Nuclear corvette, unfortunately regulations exist against certain materials that are used in atomic weapons were required to make it safe, funny thing is gasoline and fumes are extremely volatile and dangerous but that is overlooked. Now the better idea is to store the hydrogen in the form of water and produce hydroxy gas on demand by use of the fuel cell in the other direction, but this requires that the system utilize large amounts of electricity that will in turn produce enough hydroxy to run the motor. This process makes a car safe again because for one it makes friggin noise when it runs, most folks never knew how much safer it makes an automobile that you can hear, electrics fail there. Unfortunately none of this will ever come to be released because it does not work with commercialization and money and big oil profits, those that try will likely be killed by big oil.

    1. Re:He's right by MobSwatter · · Score: 1

      I'm totally surprised to not see some of the fracking trolls in this post as seen before and obviously minions of big oil. I suppose I should give a big shout to you pricks thanking you for stunting the growth and advancement of a species for a buck. If there is an afterlife and energy can negate energy, expect to see me.

  79. HARRUMPH... by Frosty+Piss · · Score: 1

    Well, I will say this:

    When I submitter the story, the word "bullshit" did not contain a lot of special chars.

    And my name is "Frosty PISS".

    Slashdot is getting soft

    --
    If you want news from today, you have to come back tomorrow.
  80. Tesla CEO Elon Musk: Fuel Cells Are 'So Bull@%!#' by Anonymous Coward · · Score: 0

    Tesla CEO Elon Musk: Fuel Cells Are 'So Bull@%!#'

    Spoken like a true crony capitalist.

  81. Re:Sorry, But He's a Douche by Nemyst · · Score: 2

    Malarkey - I've actually seen the episode, and not only do they not put the car through anything more rigorous than other cars tested, Jeremy Clarkson (you know, the guy who would rather have his testicles eaten by a million angry bees than compliment an electric car) actually praised both the car and the company at the end of the show.

    Not to mention, a wheel really did lock up at speed and almost kill the Stig, which Tesla readily admits did happen.

    I'm specifically talking about the bit where they push the car around. It's been revealed that the whole thing was faked and the car did not inaccurately report remaining charge nor actually fail to do the whole run, they just filmed it like that anyway. I've not watched the whole thing (not a UK resident, not a car fan, and most certainly not a Top Gear viewer), but what I have seen of it points at a fair amount of "malarkey", as you say. I'm not saying the Tesla was perfect, remember? Just that Top Gear did some not-so-great things to prove a point.

    So, he did but didn't overspeak the features of the vehicle then renege? Not really 100% what you're trying to say here.

    I remember a lot of people thinking that the mileage figure was being overrated because you couldn't do that at -30C in the snow or that the batteries could never, ever catch fire or other such things. Exaggerations, basically, which I'd blame equally on Tesla's boasting and on critics' misrepresentations.

    In reference to the Texas fiasco, no - it would be undeniably good if he was trying to get the law changed because it's wrong, but that's not the case - he was trying to get a special exception made for his company, and fuck everyone else.

    Just like one would expect from a self-serving capitalist.

    I can't find a source that says that, amusingly enough. What I did find seems to point at an exemption made for "American-owned manufacturers who exclusively make electric vehicles". To me, this sounds tailored to actually pass. Anything broader and the TADA would jump in guns blazing saying how they're destroying America. They're already opposing the bill with such a ludicrously small scope, imagine if the American-owned restriction wasn't there or the electric restriction wasn't there? Texas happens to be both ultra-patriotic and an oil baron's paradise, what did you expect?

  82. Oh by Marrow · · Score: 1

    Thanks for the comments on this from the people who replied. Apparently, hydrogen is a pretty serious bastard. Good to know.

  83. Re:Wait... by Khyber · · Score: 1

    "For the Model S lithium-ion battery, it was correct to apply water"

    As someone certified for Class D and E fires (metal and radioactive, respectively) - WRONG MOVE.

    --
    Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
  84. Re:Wait... by Albinoman · · Score: 1

    True, but in this type of accident the gasoline tends to pool up under the vehicle and incinerate the entire thing.

  85. Re:Sorry, But He's a Douche by Albinoman · · Score: 2

    He may well be a douch,

    Oh, he is.

    but he's not the only one out there,

    No, but the fact there are other douche-bags on the planet is no excuse for being one.

    and he is doing something that will push us in the right direction.

    According to you. Me, I fail to see the merit in the concept of having everyone drive around in what is, essentially, a big-ass pile of heavily polluting blood minerals that won't get you to your destination without taking a minimum hour break every couple hundred miles.

    Not to mention, even if electric cars are "the right direction," Elon Musk doesn't give half a fuck about that - he's a capitalist, therefore he's in it for the money. If altruistic progress was his goal he'd be selling Teslas at a loss just to get them in the hands of the people who would benefit the most.

    Also, it takes considerable effort to get hydrogen gas from dihydrogen monoxide. Perhaps he knows this already?

    Uh, that was a dig, not a comparison or question of science. I figured it was obvious.

    Lithium does not have to be mined for blood money (and there's probably lithium in the screen you're looking at, so you're a murderous hypocrite). The new chargers will work in twenty minutes from empty.

    Now go watch a video of him being interviewed or giving a tour of SpaceX. He literally walks around naming all the parts off the top of his head and knows what they do. Name any CEO capable of that. First, the man really is a genius. Second, he's actually quite down to earth. Saw him get very emotional about the "perversion of democracy" that other automakers are going to to try to stop him. His college education is specifically for designing batteries, not what you pursue to get filthy rich, he's just good at what he does (and very lucky). They actually don't patent any of the the SpaceX technology, that greedy bastard. And lastly, no one said he's trying to be altruistic. And altruism isn't also suicidal.

    Course, I actually know what I'm talking about instead of just spreading ICE automaker FUD.

  86. Re:Sorry, But He's a Douche by Albinoman · · Score: 1

    "In reference to the Texas fiasco, no - it would be undeniably good if he was trying to get the law changed because it's wrong, but that's not the case - he was trying to get a special exception made for his company, and fuck everyone else."

    Cause you know the dealerships should be the one's deciding how cars are sold, and fuck (literally) everyone else, not just a couple car salesmen. That's like WalMart lobbying to not allow you to shop online. You really think if the law allows him direct sales then no one else would be allowed? The exception is for him cause the big players don't want an exception at all.

  87. Re:Sorry, But He's a Douche by garyebickford · · Score: 2

    Every organization/organism, from the smallest flea to the Salvation Army (and GE) has to take in more than it puts out. It is the way of life, just as it is the way of all social systems. In Capitalism we call that profit, a non-profit calls it 'reserves', a household usually calls it 'savings'. if your local free food pantry agency doesn't bring in more (in the form of donations of goods and money, plus government assistance), the lights will get turned off and everyone will go home, or back under the freeway overpass. Even governments and countries (government + the people and institutions) have this. If a nation spends more than it takes in, eventually it will be destitute, subject to revolution or takeover.

    TL;DR: Profit is not a dirty word. Many, many people (myself included) are the type who are willing to bet some part of their assets, time and energy to make something cool happen. In my case it is commercial space development. If my associates and I succeed, according to the best analyses the mean standard of living of people worldwide may increase by as much as a factor of 10. And in the process, my heirs or some foundation (I'll be too old to see most of the benefits) will get a piece of the action.

    In sum, Musk has shown in several ways that he does care about this stuff. He's not blowing over $1 billion on SpaceX because he's in it for the money - . he was betting that what he believed was a viable project. There's no better way to focus one's mind than to put a big chunk of everything you own on the table. After PayPal he could just retire to an island somewhere and play tennis all day. He's doing it because he believes in it. Making money at it separates the doers from the dreamers, and proves your idea and your plan were good. If SpaceX succeeds, Musk will live in history not as a guy who made a bunch of money, but a guy who used that money helping to lift humanity off this rock.

    --
    It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
  88. Yes and WHAT CAN YOU DO? by Anonymous Coward · · Score: 0

    Musk is both right and wrong.

    The wrong is the interesting part as he does not have a penis in hell of how to fix this 200 year old engineering problem!

    Musk is a drug-y.

    "AAAAhhhh"

    "AAAAhhhh"

    "Musk is the drug that I'm think'n of."

    "AAAAhhhh"

    "AAAAhhhh"

    "Musk is the drug to day."

    '80 like man, yea we know, don't bother.

  89. Re:Sorry, But He's a Douche by garyebickford · · Score: 1

    Interesting. I did not know about that. I did know that Consumer Reports, which is much more in touch with the average US consumer than Top Gear, rated it the highest of any car in their history. Of course that may be in part because of the promise of viable, attractive, electric vehicles, but the order backlog seems to back up the notion that he has hit a sweet spot in the market. Above a certain minimum level of utility, people buy cars to satisfy themselves with style, performance, cushiness, and obviously not least, feeling good about their apparent environmental impact.

    --
    It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
  90. Re:2 lbs of H2 alternator 1 lb of H2. CnH2n by gl4ss · · Score: 1

    that makes as much sense as "let's add dynamos to every wheel on the car to make more electricity!".

    (now if you have some way to harvest the waste energy from the engine, ie heat, breaking, into that.. then yeah, but in principle you would be going to be using fuel in the car to create fuel for the car. by using more energy for the alternator you would required to burn more hydrogen to offset for that power drain.

    hydrogen could be a nice storage medium - if there was a place on earth with free electricity.

    --
    world was created 5 seconds before this post as it is.
  91. Re:Sorry, But He's a Douche by garyebickford · · Score: 1

    Lastly but most importantly, his wrestling with car sales rules in many states is undeniably good. These rules have been bent and twisted to hell and back by the incumbent auto makers and their dealers to make it nigh impossible to compete with any other business model. For a place like Slashdot, with so many promoters of the "FREE MARKET", this thing should cause almost unanimous uproar. Tesla wants to cut costs on incumbent, useless, overpriced dealerships and modernize how cars are delivered, supported and maintained. It may work, it may not work, who knows? Regardless, however, laws shouldn't be designed to stack everything against that model in such a fashion, and saying that it's just whining and not a serious concern is childish at best, utterly irresponsible at worst.

    You're probably right. But this may be one of those "be careful what you wish for" things - imagine if all the dealers were gone, and the car makers only sold their cars through their own 'stores'. It's very hard to predict what the pricing and other aspects will be at that point - especially with regard to warranty repairs. There are worse (for the customer) business models than the one presently in operation.

    --
    It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
  92. Errm no none of that is right.. by Falconhell · · Score: 0

    I have been driving an LPG/Propane car for the last 20 years. It uses about 30% more than on Petrol.

    Spare tire size tanks in cars here can hold about 60 litres with a 20% expansion margin.
    that gives about 260 miles not 20!

    You need 1/3 more volume for the same range. In my vehicle the tank takes up 1/3 of the boot space (Trunk for the speakers of "US english)

    I get approx 7km/l on LPG, and around than 9 km/l on Petrol.

  93. Re:Still internal combustion by garyebickford · · Score: 1

    Why would you use an ICE? The product of a fuel cell is electricity, plus the combustion products and heat. Depending on the type of fuel cell, it could be a lot of heat - enough so that recovering the heat energy by running the hot, gaseous output from a fuel cell through a steam turbine can increase its energy efficiency as much as 20%. So the water is not likely to be 'dripping out' the tail pipe after the first two minutes, except in very cold climates.

    --
    It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
  94. Re:2 lbs of H2 alternator 1 lb of H2. CnH2n by kenshin33 · · Score: 1

    there is (sun, wind, heat ). but bot enough apparently.
    but what would be the point of having more electricity in a car that do no require more.

  95. Re:2 lbs of H2 alternator 1 lb of H2. CnH2n by Anonymous Coward · · Score: 0

    No. If you plug in your invention, your car's tank will run out even quicker; even if you could make a system with no losses, or weight, the most you could hope for was a net zero gain. If you are joking, then well done, that is very funny.

  96. engine produces what's needed by raymorris · · Score: 1

    > the question is, how much does the engine produce, how much is needed to propel the vehicle.

    The engine is mechanically connected to the wheels, so whatever the engine produces propels the vehicle. There cannot be any "extra" energy.

    The system can produce more energy by pressing the gas pedal further, using more gas.

    There is exactly one energy "leak" in all systems - heat. If you could set something on top of the muffler to convert that heat to something usable ...

    1. Re:engine produces what's needed by kenshin33 · · Score: 1
      there is http://en.wikipedia.org/wiki/Thermoelectric_effect. is it efficient may be not.

      The engine is mechanically connected to the wheels, so whatever the engine produces propels the vehicle. There cannot be any "extra" energy. The system can produce more energy by pressing the gas pedal further, using more gas.

      the net ouput at the drive shaft ( while my car is idling car if the AC compressor goes on I notice that the engine loses few rpm. On the road, I notice also that I need to press harder on the pedal to get the same speed (engine RPM). An alternator on a car can generate 50 amps at 12 volts (may be more but that's ~2hp at max capacity , since nothing is free is needs at least that amount of mechanical energy), what can this generate in term of electrolysis, how much fuel is consumed to generate that much energy.
      the point is not to replenish the full tank, merely extending it. If burning the whole tanks yields a few grams (to move the vehicle few meters) it's not worth it but if it can produce say 1/4 of a tank that 1/4 max distance with a tank gained.
      the electricity can come from different sources too, heat (muffler, engine block, which can help cool it -if it is a combustion- ) wind (small wind turbine, at highway speed ), braking (divert energy to shorten breaking distance, like engine braking with manual transmissions or some other contraption) ... etc.

    2. Re:engine produces what's needed by kenshin33 · · Score: 1

      *100amp @14 volts

    3. Re:engine produces what's needed by Kylon99 · · Score: 1

      You may get more mileage (pun intended!) by doing things that hybrid cars do today. Rather than take energy away from the power of the torque which you need, you could try and recapture the waste energy, such as heat and sound. Or as they do today, recapture energy during the breaking.

      I don't know what the efficiencies are though...

  97. Re:Sorry, But He's a Douche by Dr+Max · · Score: 1

    You give me a high performance car (thankyou), and i can break it in an hour or so, without hitting anything or crashing in any way. There is a lot going on very fast when a car is pushing the limits, and it doesn't take that much to push it over (this has been shown repeatedly on top gear). I don't know how much easier a tesla would be to break, but I think the top gear team went into the review looking to push the merits of the petrol car, than actually properly testing the tesla.

    --
    Rocket Surgeon.
  98. Re:Wait... by X0563511 · · Score: 1

    As someone who's certified for Class D and E fires, I'd expect you to realize that MSDS data from the manufacturer of a specific item trumps general rules such as that.

    --
    For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
  99. First sentance by Anonymous Coward · · Score: 0

    "Elon Musk is unafraid to speak his mind. Whether he's talking about other players in the electric vehicle space or sub-par reporting from The New York Times, this is a man with few filters."

    Except for his multimillion dollar PR apparatus. You can't start a story with that line and expect anything but BS PR to follow.

    http://www.youtube.com/watch?v=WSB7QpldGTQ

  100. spelling by l3v1 · · Score: 1

    Well, I'd be interested to hear him actually pronounce that: 'Oh god, a fuel cell is so bull@%!#'. He knows it, we know it, everyone knows it, so why the hell can't we write the proper word. Ehh.

    --
    I am putting myself to the fullest possible use, which is all I can think that any conscious entity can ever hope to do.
  101. Re:2 lbs of H2 alternator 1 lb of H2. CnH2n by Anonymous Coward · · Score: 0

    Your ideas don't make any sense. You're not just talking about perpetual motion, you're talking about getting extra energy from nowhere. Why don't we power cities that way? Start with an empty 15,000 cubic meter hydrogen tank, a massive hydrogen powered generator hooked up to an electrolysis cell, and a small starter tank of hydrogen. Run the generator starting with the small tank and use the power it generates to run the electrolysis cell and feed back hydrogen into the generator, with a surplus filling the giant tank. Why, you'll get free power, plus a giant tank filled with hydrogen out of the deal... Can you think why no-one has developed this ingeneous idea before?
    Now, if you're getting the power from some other source, you can use it to make more hydrogen fuel to give the car a little bit of extra range. For example, from solar cells and regenerative braking. Of course, the power from regenerative braking is generally stored more efficiently short term in, for example, a capacitor or even a battery. Ditto for solar if the car is running, feed it directly to the engine or store it short term when needed. If the car is off for a long time, you might conceivably be able to make hydrogen with power from solar cells and store it, but you'll need to leave your car out in the sun for any real benefit.

  102. Lots of things are dangerous by SmallFurryCreature · · Score: 1

    Countless people have been trampled to death by horses, did that stop people from riding them? Their shit is dangerous to, did that stop people from using them in cities turning every street crossing into an adventure? No.

    Petrol is dangerous and early cars were dangerous and their wheels and brakes were a joke. How many died in car fires? Yet do you think of the average car as unsafe? Even pinto's? (

    Scientists invent new stuff and then engineers make it safe and usable. Then workers make it. Managers then screw it up. Musk is showing his true colors here. Plenty have claimed Musks own car is unsafe. Engineers proved them wrong.

    Maybe someday we will see a hydrogen car for the masses. Maybe not but to claim X is inherintly unsafe is stupid especiallly when you yourself are selling a product some claim to be inherintely unsafe.

    --

    MMO Quests are like orgasms:

    You may solo them, I prefer them in a group.

    1. Re:Lots of things are dangerous by MobSwatter · · Score: 1

      Man didn't create horses, but has had a pretty colorful past in "inventing" things that go "boom"...

  103. Re:Wait... by Anonymous Coward · · Score: 0

    Because Tesla PR is mostly about writing up meaningless numbers. Peak force on a microscopic scale means nothing, and by the looks of it, the car batteries in that Tesla burned in what is a typical road accident. That's one fire in a deployment of, what, not even 50k vehicles? Imagine this kind of frequency of car fires in your regular automobile park, and you'll see what it means for Musk and why he finds it imperative to fling more poo.

    The guy's just another P.T. Barnum.

  104. Re:Wait... by Anonymous Coward · · Score: 0

    Why would the duration matter, unless you think cars being impaled from underneath with 25 tons of force for any duration is normal? Who the hell taught you how to drive?

    More importantly, warn anyone who may be tempted to have sex with him!

  105. Re:Sorry, But He's a Douche by atlasdropperofworlds · · Score: 1

    Incidentally, lithium in the tesla batteries is scraped up from salt in the salt flats. Most of it comes from Bolivia, and the worker make good money, and work in pretty good conditions. The rest of the car is made out of metal and fiberglass, much like any other car. Perhaps you're mistaking it for a prius.

  106. Re:Wait... by Khyber · · Score: 1

    As someone that's got the certification plus chemistry experience, your MSDS means jack shit in the face of established reality.

    --
    Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
  107. Electric - Fuel Hybrid by Anonymous Coward · · Score: 0

    I think that a hybrid could be better creating a basic electric car, and "plugin" fuel + fuel cells when you want to expand the range.
    A electric car is most suitable for daily transport, so it's the natural car for most the time. In the future, biofuels or synthetic fuels will be the replace of fossil fuels.
    So hydrogen, ethanol, butanol, (bio)diesel will be the fuel of the future for expand the range.
    So, instead of carry a thermal engine all the time, it's reasonable to make some kind of plugable fuel cells, and a drainable tank, so you can convert a pure electric into a hydrid long range capable car.
    Probably, liquid fuels are better, so we need good methanol/methanol/butanol fuel cells for this.

  108. Helium schmelium by Hognoxious · · Score: 1

    The Hindenburg really gave it a bad rap, but that was due as much or more to the coating on the envelope as to the hydrogen.

    That must be why they changed the coating and not the gas, then.

    --
    Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    1. Re:Helium schmelium by RaceProUK · · Score: 2

      The Hindenburg really gave it a bad rap, but that was due as much or more to the coating on the envelope as to the hydrogen.

      That must be why they changed the coating and not the gas, then.

      The Hindenburg was originally designed to use helium, but a US export embargo at the time meant Germany couldn't get enough helium to fill it. Had that embargo not existed, the Hindenburg would have never burned.

      --
      No colour or religion ever stopped the bullet from a gun
    2. Re:Helium schmelium by Anonymous Coward · · Score: 0

      It would have burned even if it was filed with helium. Heck, it would have burned if it was filled with water. The shell was flammable.

    3. Re:Helium schmelium by RaceProUK · · Score: 1

      Depends - did the hydrogen catch first or the skin?

      --
      No colour or religion ever stopped the bullet from a gun
  109. He is afraid by jopet · · Score: 1

    He is very afraid. And rightlfully so.

  110. Adding carbon by jopet · · Score: 1

    It all depends where that carbon comes from. If the butane, methane, dimethyl ether or whatever it is is created directly or indirectly by photosynthesis or if it is created electrochemically using waste CO2, the net CO2 in the exhaust is not a problem. The other reaction products you mention still are but it should be able to crack them up catalytically -- these are essentially the same you find in a diesel exhaust, minus the soot, which is a plus.
    Hydrogen fuel storage is really still a problem, and I am not sure it is likely to be solved, but I think the alternatives of cells that work with methane or methanol are promising technologies.

    1. Re:Adding carbon by nojayuk · · Score: 1

      The problem with the contaminants I mentioned is they are created on the fuel cell's catalytic surface which is usually at a thousand deg C or hotter. A simple hydrogen-oxygen fuel cell produces only water, adding nitrogen and carbon molecules to the feedstocks generates assorted pollutants, some of which are not good for you if released in quantity -- dioxins, nitric acid, smog-NOx compounds etc. They also corrode and will eventually destroy the catalyst itself.

      The assorted wonder-fuels that can be created using electricity and atmospheric CO2 (dimethyl ether has a big following among some folks) can be burned in gas turbines or piston engines to power aircraft, cars, trucks, trains etc. or even be used to regenerate electricity on demand. Fuel cells are, in this case, a solution looking for a problem.

  111. Re:Sorry, But He's a Douche by Anonymous Coward · · Score: 0

    I'm specifically talking about the bit where they push the car around. It's been revealed that the whole thing was faked and the car did not inaccurately report remaining charge nor actually fail to do the whole run, they just filmed it like that anyway.

    Yes, because they were running out of daylight to finish the film. This makes the essence not less true in any way. Also this delay was due to various technical problems with the car, so who is to blame for that?

    If they would have been able to continue filming they would have been able to catch this event for real as it would have happened for real. So I don't see that much difference.

    Also mind the Voice over at this specific part of the film: "Teslas Engineers told us that it WOULD ...". So it was very clear (except maybe to US-american fanboys) that this was not the depiction of something that really happened (but would have).

    I've not watched the whole thing

    Yes, it shows. But do you think it is fair to make conclusions from (in many cases carefully edited) portions of the film? Watch the whole thing, it is inly a few minutes, you don't need to be a UK resident, car fan or Top Gear viewer.

    You are denying yourself from getting the whole picture. This should actually disqualify you from making any comments or conclusions.

  112. Energy efficiency by Attila+the+Bun · · Score: 1

    the tesla uses energy over 4x more efficiently

    That's not right. In city driving Tesla claim a 292 mile range off a 85kWh battery, or 651kJ/km. Adding in battery manufacture and allowing a generous 1000 cycles, that goes up to 923kJ/km. Allowing for losses in electricity generation (40% at best) and transmission (~7%), the overall consumption is 1653kJ/km.

    A medium size diesel gets about 60mpg (UK gallons), equivalent to 1690kJ/km. The difference is just 2%.

    1. Re:Energy efficiency by Anonymous Coward · · Score: 0

      A medium size diesel gets about 60mpg (UK gallons), equivalent to 1690kJ/km. The difference is just 2%.

      Perhaps, but if you're going to include the energy involved in battery manufacturing and transmission losses, how much energy is required to extract the oil and refine it into diesel? Don't forget to include the energy expended to get the fuel to the gas station.

      Also the Tesla Model S isn't designed to be the most efficient electric car, it is very large (3 inches longer than a BMW 5 series) and with similar acceleration as high powered versions of the 5 series. An electric car of comparable size and performance to your 60mpg diesel would do much better in your comparison.

  113. Re:Sorry, But He's a Douche by CanHasDIY · · Score: 1

    Not saying the way it's currently set up is right, but on that same note, lobbying for a special exception to the rules just for you and no one else isn't right either.

    Point being, the idea that Musk is championing social change for the greater good is pure bullshit. He just wants to sell more cars.

    --
    An enigma, wrapped in a riddle, shrouded in bacon and cheese
  114. Well.. by Anonymous Coward · · Score: 0

    The one big advantage Hydrogen cells would have is, it is fairly easy to create Hydrogen gas from water. Lithium ion batteries are considerably harder to manufacture, not to mention much more hazardous in some situations.

  115. Re:Sorry, But He's a Douche by Anonymous Coward · · Score: 0

    Musk's behavior (in this case of hydrogen fuel cells being unsafe) seems to be similar to Edison disparaging AC current; I am waiting for Musk to start blowing up cars to show how unsafe hydrogen is.

  116. Re:Sorry, But He's a Douche by Teancum · · Score: 1

    Both Tesla and SpaceX (I don't know if they share an office) have permanent staff in Washington DC. I suppose it is just a matter of time that your wish will be granted.

  117. Fuel Cell's Dirty Secret by Anonymous Coward · · Score: 0

    One problem they don't mention with fuel cells is that when you're extracting power from them only half the energy they produce is in the form of electricity, the other half is heat.

  118. Re:Sorry, But He's a Douche by __aarzwb9394 · · Score: 1

    (Top Gear did)..not put the car through anything more rigorous than other cars tested

    Apart from falsely stating (or merely strongly suggesting, your honour) that the car ran out of power after being driven on a racecourse.
    How is the fuel economy of any car (especially a sports car) on a racecourse, driven at racing speeds? Seriously low miles per energy input, whether Porsche, Tesla or whoever. So their lie seemed a little pointless.
    Re Top Gear's "Neutrality"
    Top Gear Live shows/events are sponsored by Shell Oil, who might just have a interest in not having their fuel supply networks rendered largely obsolete by mass electric car use.

  119. Re:Sorry, But He's a Douche by KevReedUK · · Score: 1

    I can't find a source that says that, amusingly enough. What I did find seems to point at an exemption made for "American-owned manufacturers who exclusively make electric vehicles". To me, this sounds tailored to actually pass. Anything broader and the TADA would jump in guns blazing saying how they're destroying America. They're already opposing the bill with such a ludicrously small scope, imagine if the American-owned restriction wasn't there or the electric restriction wasn't there? Texas happens to be both ultra-patriotic and an oil baron's paradise, what did you expect?

    The only issue I can see with it as portrayed in the article is the difference between what is in the bill - "American-owned manufacturers who exclusively make electric vehicles" - and what perhaps should have been in the bill - "American-owned manufacturers who make exclusively electric vehicles".

    A subtle difference, but the difference between a bill that could be argued is an exception solely for Tesla vs. one that could cover any manufacturer that have electric-only vehicles (possibly in addition to gasoline-powered or hybrid technologies). The bill, as described by the article (and that is important, as it's the journalist's reporting of the bill, not the full text of the bill itself) would apparently cease to apply to a company the moment they make something other than an electric-only vehicle. Potentially, it could even be considered to exclude Tesla from complying, as they not only make the vehicles, they make the chargers and spare parts too (letter of the law vs. spirit of the law)!

    --
    Just my $0.03 (At current exchange rates, my £0.02 is worth more than your $0.02)
  120. Re:Wait... by catprog · · Score: 1

    http://www.earth-policy.org/plan_b_updates/2010/update87

    250 million cars

    if only one in 10 thousand catches fire then their would be 25 thousand car fires.

    http://www.nfpa.org/research/fire-statistics/the-us-fire-problem/highway-vehicle-fires

    187 thousand fires on the highway alone.

    or nearly 1 in 2000 petrol cars catch fire each year.

    --
    My Transformation Website
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  121. Re:Sorry, But He's a Douche by bentcd · · Score: 1

    I'm specifically talking about the bit where they push the car around. It's been revealed that the whole thing was faked and the car did not inaccurately report remaining charge nor actually fail to do the whole run, they just filmed it like that anyway.

    They didn't fake it so much as they filmed the scene. Top Gear is a sitcom about cars and like any sitcom they first write the script, then they film the scenes. Then they put those scenes together and there you have the week's episode.

    The major disconnect here is all those people who seem to think that Top Gear is some sort of unbiased, or even just serious, product review show. It is not: it is a British scripted comedy show. It is a bit unusual in that cars play parts in the show, but then that is presumably an important factor in its unique appeal. (In the movie Evolution the protagonists use a well known brand of shampoo to give the big bad alien a fatal enema, saving the world; the same people who take Top Gear seriously might also think that saving the world from aliens is an actual feature of that shampoo.)

    --
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