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Transportation

The World's First Hydrogen-Powered Passenger Trains Are Here (cnn.com) 124

An anonymous reader quotes a report from CNN Travel: The future of environmentally friendly travel might just be here -- and it's Germany that's leading the charge, with the first ever rail line to be entirely run on hydrogen-powered trains, starting from Wednesday. Fourteen hydrogen trains powered by fuel cell propulsion will exclusively run on the route in Bremervorde, Lower Saxony. The 93 million euro ($92.3 million) deal has been struck by state subsidiary Landesnahverkehrsgesellschaft Niedersachsen (LVNG), the owners of the railway, and Alstom, builders of the Coradia iLint trains. The Elbe-Weser Railways and Transport Company (EVB), which will operate the trains, and gas and engineering company Linde, are also part of the project.

The trains, five of which which debut Wednesday, will gradually replace the 15 diesel trains that currently run on the route, with all 14 running exclusively by the end of the year. Just 1 kilo of hydrogen fuel can do the same as around 4.5 kilos of diesel. The trains are emissions-free and low-noise, with only steam and condensed water issuing from the exhaust. They have a range of 1,000 kilometers (621 miles), meaning they can run for an entire day on the network on a single tank of hydrogen. A hydrogen filling station has already been established on the route. The trains can go at a maximum of 140 kph, or 87mph, though regular speeds on the line are much less, between 80-120 kph.

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The World's First Hydrogen-Powered Passenger Trains Are Here

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  • by jacks smirking reven ( 909048 ) on Thursday August 25, 2022 @06:11PM (#62823651)

    A train can be far more purpose built to handle the storage and transport issues with hydrogen and can be filled at a specialized facility by trained personel.

    On the other hand trains are probably pretty low on the list of cutting emissions since they are pretty efficent from an energy-per-person-per-mile-moved basis but every bit helps.

    • Yeah this is cool but trains are already extremely efficient. This is like telling a marathon runner that he needs to improve his BMI while ignoring the 450 pound guy named “coal” sitting right next to him.
      • Yeah this is a cool proof of concept but it's not going to scale without having the economic production of hydrogen fuel more accessible and getting it from non fossil sources.

        I can see a future where long haul trains are hydrogen powered though even over a battery powered one but thatll shake out over the next couple decades. I think this is a possible use case for hydrogen compared to passenger vehicles which a total nonstarter.

        • Why not combine the hydrogen with some Carbon atoms and form Methane? Its easier to store and transport.
        • This are short howl trains, where it is considered to be too expensive to electrify the tracks *and* replace the trains by electric ones. So, the idea is to see how a hydrogen economy scales in that niche.

      • We do however blow that efficiency on scale. Per unit moved trains are massively efficient but in trip terms they emit far more CO2 despite competing against trucks which stop and start.

        Mind you this is low hanging fruit used as a PoC.

    • by Kisai ( 213879 )

      Hydrogen as a "fuel" is a misplaced use of technology.

      We should be using "hydrogen" in devices where water is not a scarce resource, and the devices it's used in are low-risk environments.

      Ships and Rail transport are "not that bad" uses of the technology because it allows for creating hydrogen fuel on the vehicle by auxiliary energy sources (eg solar) or from terminal power (Eg shore power,) It is however not risk-free.

      It is however bad to put hydrogen fuel cells into things that can not be fueled directly

      • Like "shipping" hydrogen from from one country to another is -THE WORST- idea,
        All fuels like coal, gas, uranium, and most importantly: oil, are shipped from one country to the other one.

        • Like "shipping" hydrogen from from one country to another is -THE WORST- idea,
          All fuels like coal, gas, uranium, and most importantly: oil, are shipped from one country to the other one.

          I think that's the point - hydrogen is less efficient to transport than all those other fuels because it is much less dense. So it has to either be compressed (which is inefficient) or refrigerated and liquefied (hydrogen boils at about 20K, so this is very energy-intensive too)

          • Perhaps you should read up how efficient it is to transport oil or gas?

            Less dense: that is not argument. That is just silly. You transport X kg form A to B in a ship. Costs the same, regardless what X is made of if the amount of kg is the same.

            Cooling of Methane or compressing it (LGN), seems not to bother you, but H2 does? Why? Bottom line it comes down to economics and avoiding CO2 emissions. That is all.

    • Actually, no.

      Modern locomotives are giant diesel generators driving electric traction motors

      They're really quite filthy

  • by Ecuador ( 740021 ) on Thursday August 25, 2022 @06:13PM (#62823653) Homepage

    Diesel trains are horrible, but I don't get it, why not electric trains? We've had those for a long time now, it's pretty mature technologi. You don't even need batteries you can power them from the tracks, or you can have small batteries if you avoid powered lines in stations etc.
    Hydrogen generation is very inefficient, you end up using a lot of power, and in Germany a quarter of it is coal, which is probably dirtier than Diesel.

    • by jacks smirking reven ( 909048 ) on Thursday August 25, 2022 @06:23PM (#62823689)

      Well just about all subways are powered with a third rail and most light rail and commuter trains are already done with overhead lines and pantographs but there are areas where there just is not feasible, either the geography is not condusive to it, the route is too long, overhead lines can be ugly etc.

        I think doing it electric is overall the most cost effective option to run a train by far if the infrastructure is in place so there's always an incentive to do it that way where you can but likely for this the cost of installing all that infrastructure will buy you a bunch of diesel or in this case hydrogen trains.

      • by drinkypoo ( 153816 ) <drink@hyperlogos.org> on Thursday August 25, 2022 @06:59PM (#62823791) Homepage Journal

        It arguably makes more sense long term to use batteries because you can charge them from third rail, pantograph etc. where it exists, and then use them in between those sections. Rolling charging without it being wireless, who'd have thunk it? But the supply of batteries is poor right now, so hydrogen makes sense right now.

        • by AmiMoJo ( 196126 )

          They have that set up in Japan. Short sections of track that can't be electrified, so the train has a battery that is big enough to cover those areas.

          They are also deploying regenerative braking tech in the electrified areas, putting the energy into another line or back into the grid.

        • The route is 100 km long and only hits a couple stations with existing electrification. The train would never spend enough time under overhead line electrification to charge the batteries.

    • by DDumitru ( 692803 ) <doug@easycoOOO.com minus threevowels> on Thursday August 25, 2022 @07:30PM (#62823883) Homepage
      Remember that H2 and fuel cells "ARE" electric trains. The FC stack produces DC just like the diesel electric generators do. Integration is the easy part.

      The reason for H2 instead of overhead wires is cost. The cost to electrify a route is huge. If the route is high usage like the NE corridor in the US or near major cities, then "on grid" works. If the line is longer and lower usage, the H2 solution costs a lot less to install.
      • It costs a lot because you have to build a kind of mini grid. Imagine in 90% or the world where the electric grid is dogshit. How long will it take to build one and all the power sources in order to switch all vehicles to battery. Decades. Just like how long it will take to fix and upgrade the rickety power grids in the industrialized world to be able to handle the loads. You are right, building power grids is expensive. Clean H2 is achievable and we know how to distribute it.

        • Most grids can handle the load super easy.
          You charge at night, when "base load" is happening and that is in most countries 40% of peak load.

          So: you just keep your grid running at a higher load than you normally would do at night: simple!

          • Electric trains do not have batteries. While OK, one demonstration line does charge at a station and then runs a loop. Total distance is under 2 miles and the batteries are quite big. Trains that are on "wires" get their juice real-time from the grid, not overnight.
      • The other more important problem is: parts of the route, or all of it, has to be shut down during the work on putting up overhead electricity.

        Many such routes in Germany are single rail. So the trains can only pass each other in train stations. As soon as you work on electrifying between two stations, that part of the railway is shut down. So you need busses etc. to keep the transport going.

        If you can just replace the diesle-electric trains with H2 driven ones, that seems much cheaper. And: projects like th

        • by Malc ( 1751 )

          Germany would not be the industrial world leader if we would measure every fucking infrastructure project by: how much bang does us a buck give.

          There wasn't much bang for your buck (or Euro) at Berlin's new airport. It was worth every penny, eh? In a similar vein, the fine citizens of Stuttgart will be able to travel so much better than anybody else when they finally get their new railway station, and the audiophiles of Hamburg are enjoying their music in their new shiny Elbphilharmonie more than anybody e

          • The trains are actually running quite well, and the Autobahns are not that bad either.

            And both: do not give back a bang for the buck. And we still use them and build them.

            No idea what your Berlin Airport and Stuttgart 21 project have to do with large infrastructure research projects Neither are.

            Berlin Airport as well as Stuttgart 21 and the Karlsruhe "U-Strab" went to "the lowest bidders". Everyone who made an offer as in "it will take X years" and "will roughly cost Y billions" got rejected. So: everyone w

    • Why? Perhaps because one of the partners in this venture is the global fossil fuels company, Linde? I'm guessing that Linde also produce hydrogen gas & are trying to compete with electric projects. This'll make a nice PR & marketing "window display" project that they can sell to the world. My immediate suspicion was that the hydrogen would be produced from fossil fuels but apparently, they're pushing wind-powered hydrogen. I wouldn't be surprised if later down the line, they switch to hydrogen produ
      • Possibly, but green hydrogen is really taking off [pv-magazine.com]: "The direct coupling of electrolyzers with PV and wind power systems will become the cheapest forms of energy in many parts of Europe, according to Aurora Energy Research." This article says 3 Euros per kg. And in Australia they are targeting 2 Australian dollars per kg which is only about 1.5 Euros.
      • Or maybe a Clean 'Hydrogen alliance' formed as Canada, Germany sign agreement on exports [www.cbc.ca]; using wind farms on the ocean side in the windiest part of North America to produce Clean H2. Maybe Germany realizes battery powered everything is a pipe dream and H2 will be what provides power for vehicles.

      • I wouldn't be surprised if later down the line, they switch to hydrogen produced from natural gas because it's cheaper than electrolysis.
        If you have free (yes I wrote free, you can also write: negative priced) wind energy: then electrolyizis is the cheapest. Or do you think buying nat gas - oh oh, is there not just a crisis about nat gas right now? - is cheaper than using dirt cheap water and free wind energy?

    • Most trains are already electric in Europe... but not all of them. On small passenger lines, it does not make an economic sense to electrify them. So this solution is to replace diesel trains on lines that are no electrified.
      • Battery electric locomotives, charging off the main electrified line is a better solution for them
        • by test321 ( 8891681 ) on Thursday August 25, 2022 @09:02PM (#62824089)

          charging off the main electrified line is a better solution for them

          You just explained why it's not: it only works close to the main lines. You could be 200 km from the main electrified line, it will be a half solution that will cause logistics headaches. But both are studied and reported on at high levels. Some experts think lithium batteries are an intermediate solution and hydrogen will win on the long run, so some companies focus on battery trains (Bombardier), others on hydrogen (Alstom). Hydrogen is strategically preferred in Europe because it does not depend on imported mineral resources (Lithium is only economical when mined/imported, and battery makers are Asian), while Europe has a thriving Electrolysers industry: Topsoe and GHS from Denmark, Siemens Bosch and Thyssenkrupp from Germany, Enapter from Italy, Schlumberger and Elogen from France.

          • You just explained why it's not: it only works close to the main lines. You could be 200 km from the main electrified line, it will be a half solution that will cause logistics headaches.

            Given that we can make 600 km EV cars right now, 200 km wouldn't be even half range for an EV train. But the answer remains pretty simple: Then you just electrify more rails.

            If you just electrify the appropriate length around rail yards, it should be more than sufficient. Basically, as the train approaches the station, it hits the electrification, and starts charging back up. It braking to stop there also results in charging the battery. It should be able to keep charging even as cargo and passenger ope

          • Germany is working on mining its own Lithium from underground water flows.

          • Why are you making the assumption, it is only close to main line? The 2.5 MWh battery in the Wabtec locomotive puts out 4400 HP for 40 minutes. With dynamic braking and recharging, its good enough for a 100 km of battery runs. If you need more range, you can add another battery tender and another 200 km. So as Firethorn mentioned, we dont even have to electrify all of the main lines. Its probably enough to electrify 50% of the track of the main line.
          • Comment removed based on user account deletion
            • yet there are plenty of 200km+ railways with too little traffic to justify electrification, there are plenty of workarounds to make the technology scale.

              These batteries can be mounted on their own trucks and made into a form of battery tenders. Thus you can have a few of them charged up and ready to be coupled up and used and detached and left for recharging. These battery tenders can even have their own small motors and be self propelled to let them move on their own to charging stations.

    • by test321 ( 8891681 ) on Thursday August 25, 2022 @08:26PM (#62824043)

      why not electric trains?

      European countries have dense network of historical lines that go village to village in all directions, which are not economical to electrify. Powering through a third rail has been obsoleted, last were removed in 1973. France has 16 000 km of electrified train lines, and 13 000 km that needs electrification (55% is electrified [1]). The cost of electrification is calculated to 1,59 M€/km [2]. Electrification of French tracks would therefore cost 20 G€. Plus you need to build about 10 000 crossings with small bridges, about 100 k€ each, another 1 G€. And you still need to replace the existing diesel locomotives (built for 40 years minimum, some steam engines have been in service for 80 years). If you have to pay 20+ G€ for the overhead line infrastructure, and still need to buy new locomotives, it's more sensible to use the money to buy hydrogen locomotive and build hydrogen infrastructure that will be useful to more than just the trains (energy storage in general and for private hydrogen cars).

      [1] https://fr.wikipedia.org/wiki/... [wikipedia.org]
      [2] https://www.economie.gouv.fr/f... [economie.gouv.fr]

      • 1. Buy battery-electric locomotives rather than pure electric. Even if they only have a few hundred km of range, that's enough that you can avoid needing to electrify large sections of the system, and don't need to mess with the crossings, as the locomotive has enough power to get across without issue. Plus, you can avoid electrifying "complicated" bits and concentrate on the cheaper spots.
        2. Don't bother replacing the diesel-electrics except as attrition demands it.

        Personally, I think the hydrogen infr

        • Producing hydrogen is inefficient
          It is not. But perhaps you care to find a link and try to explain why you think it is inefficient (compared e.g. to transporting 1000 tons of oil from Saudi Arabia to Hamburg)

          • I'd think that given the context of me talking about replacing the locomotives with battery-electric ones, you'd realize that transporting of oil would be considered irrelevant, because I'm not talking about oil powered trains.

            As such, let's see:

            https://fueleconomy.gov/feg/ev... [fueleconomy.gov]

            An EV converts "over" 77% of electricity from grid to wheel power. Conventional gasoline is 12-30%.

            Hydrogen:
            Electrolysis: 70-82% [wikipedia.org]
            Compression: 2-3 kWh/kG. [energy.gov] At 33.5 kWh per kg, that's around 92% efficiency.
            Shipping: We'll ignore this

            • Electric motors are in big installations 99% efficient.

              No idea why I triggered your post, though.

              It has nothing to do with passenger trains going for hydrogen on a track that can not be electrified in short time or cheap money.

              Rather than the crazy proposal I saw elsewhere of producing the hydrogen in Canada and shipping it to Germany.
              It is not crazy at all. As Germany does not have the grid capacity to produce such large amounts of Hydrogene.

              But Canada has the opportunity. And: the Hydrogen from Canada hs

              • Electric motors are in big installations 99% efficient.

                You have losses in the motor controller, the transmission, and other bits and bobs in the drive system. It can indeed be over 90%, but it varies.

                It has nothing to do with passenger trains going for hydrogen on a track that can not be electrified in short time or cheap money.

                For the money you're investing into hydrogen, you could electrify areas within the necessary time and for less.

                (Grammar: "can not" should be "cannot")

    • Hydrogen generation is very inefficient, you end up using a lot of power,
      No it is not. Get a damn clue.
      How efficient is it to transport 1000 tons of oil from a to b? Hardly more efficient than producing H2 and using it in a fuel cell.

      The idea that using H2 is inefficient is a complete myth. No idea who made it up. And no idea why people fail for that myth when they have "information at their fingertips".

    • by mjwx ( 966435 )

      Diesel trains are horrible, but I don't get it, why not electric trains? We've had those for a long time now, it's pretty mature technologi. You don't even need batteries you can power them from the tracks, or you can have small batteries if you avoid powered lines in stations etc.
      Hydrogen generation is very inefficient, you end up using a lot of power, and in Germany a quarter of it is coal, which is probably dirtier than Diesel.

      The problem is when you have to electrify 29,000 KM of track. Especially as some tracks will get used maybe twice a day. 29,000 KM is how much rail there is in France. it's the 9th largest network in the world and one of the most used passenger networks. The main lines will be electrified, but a lot of the spur lines wont be. About 55% is electrified. The US has about 250,000 KM of rail, this is overwhelmingly used for long distance freight so trains are irregular and have to go long distances, electrificat

    • The metric I have seen is that electrification pencils out at 100 mph (160 kph) or 6 trains per hour. The route through Bremervoerde (RE33) is 120 kph and two trains per hour.

  • by smoot123 ( 1027084 ) on Thursday August 25, 2022 @06:37PM (#62823721)

    I was thinking "yeah, but hydrogen is so not-dense, you'll need half the train for fuel tanks. I don't think that's the case.

    Hydrogen has a specific energy of 142 MJ/kg. Compressed to 35 MPa (35 atmospheres, which I don't think is crazy for steel hydrogen storage tanks) you get a density of 23 kg/m^3. That gives you an energy density of about 3 GJ/m^3.

    Diesel has a specific energy of 45 MJ/kg (and I'm surprised how much lower that is) and is about .85 kg/l. Multiply it out and you get about 1 GJ/m^3, one third that of very compressed hydrogen.

    If the hydrogen was only compressed to 10 MPa, about 10 atmospheres, they even out. And that doesn't even figure in the efficiency of a fuel cell/electric motor versus a diesel or diesel-electric locomotive. I'm surprised how well hydrogen stacks up and even more surprised this is the first I've heard of it.

    • by SciCom Luke ( 2739317 ) on Thursday August 25, 2022 @06:52PM (#62823763)
      And hydrogen tanks in car are aimed at 700 bar, which is a ridiculous amount, so if that works, that might also work for trains.
      The hydrogen brittling is still a thing, though. The molecules are so small that they work their way into the metal of the tank, weakening it.
      Especially when set under such pressures.
      • by drinkypoo ( 153816 ) <drink@hyperlogos.org> on Thursday August 25, 2022 @06:57PM (#62823787) Homepage Journal

        You can't use a metal tank reliably without a coating... but hydrogen barrier coatings do exist.

        • That's good to know.

        • by tragedy ( 27079 )

          A coating is going to be absolutely required, of course, but there is a question of how much protection it provides. On the one hand, no coating is going to stop hydrogen from passing through it entirely, especially at high pressures, so some makes it into the steel of the tank. On the other hand, hydrogen embrittlement is not a permanent condition, since the hydrogen works its way out of the steel in the end. So I assume you get some equilibrium with an acceptable level of embrittlement. On the other, othe

      • by Ed Tice ( 3732157 ) on Thursday August 25, 2022 @08:03PM (#62823977)
        If the tank is filled to 700bar, couldn't you just add a little nozzle to it and propel the train that way?!
        • that will give some additional thrust as well.
          Problem is that most diesel locomotives are designed to pull, not to push.
          So we could do away with the cargo so we end up with this huge MadMax like rocket running on a track...

          • by tragedy ( 27079 )

            Problem is that most diesel locomotives are designed to pull, not to push.

            Good point, jet propulsion does not work so well uphill. On the other hand train track grades are usually very shallow. Energy storage through pressurized gas is definitely a thing though. You would probably want to use something a bit more inert than hydrogen though.

      • That is why the tanks are made from plastic and not from metals ...

        The molecules are so small that they work their way into the metal of the tank, weakening it.
        Just to nitpick: that is not what is happening (in metal).
        The hydrogen molecules separate into atoms, those are moving trough the "metal matrix" of the surrounding metal.
        And that is not happening e.g in plastic tanks.

    • by Strider- ( 39683 )

      you're out by an order of magnitude on your pressure. Typical pressure for gas storage tanks is on the order of 300 bar (300 atmospheres). handling gasses at these pressures is pretty common.

      For rail transport, though, you're probably better off looking at cryogenic storage, which allows provides about 72kg/m3

    • Hydrogen is usually compressed to roughly 200 Atmospheres in plastic tanks.

      I'm surprised how well hydrogen stacks up and even more surprised this is the first I've heard of it.
      Because the "hydrogen is inefficient" myth is strong on /.

    • 35 MPa is 350 bar. 1 bar is 10E5 Pa.

  • by FudRucker ( 866063 ) on Thursday August 25, 2022 @06:43PM (#62823733)
    all those huge cargo container ships that cris-cross the world switch to a chean fuel and QUIT burning that nasty fuel oil they burn now
    • by PPH ( 736903 )

      We were headed that way. Once [wikipedia.org].

      • Fuck yeah I wish commercial nuclear wessels had become more commonplace, makes so much sense for moving multi thousand ton ships long distances.

      • by tragedy ( 27079 )

        The Savannah was an interesting vessel to be sure. A bit of a hybrid between a cargo ship and a passenger ship, although I suppose it was much more common for cargo ships to carry passengers in those days. According to the article though, it actually ended up costing more than the oil-powered vessels of the time, and required a special support vessel. Also, it dumped low-level nuclear waste at sea. Also, she operated for 27 years and ceased operation in 1976 and now, 46 years later, still has not been prope

    • all those huge cargo container ships that cris-cross the world switch to a chean fuel and QUIT burning that nasty fuel oil they burn now

      Everything makes a difference. What would make a real difference is people not pretending that the world needs to focus on a single solution in one sector at a time. There's 7.7billion people on this planet. We can do both.
      https://maritime-executive.com... [maritime-executive.com]

  • ... Germany that's leading the charge, with the first ever rail line to be entirely run on hydrogen-powered trains, ...

    I dunno about Germany and vehicles using hydrogen -- again [wikipedia.org] ...

  • to the exhaust, since you're getting water vapor (steam). Make it run something, cabin lights maybe. People would love to watch it.
  • by McFortner ( 881162 ) on Thursday August 25, 2022 @07:16PM (#62823853)
    Just one little accident that ruptures the tank and just the decompression alone will be like a bomb going off. Add to that the chance of ignition, because hydrogen and oxygen love to make water, and it gets even worse. Meanwhile, diesel is a copper plated bitch to get to explode. It will burn, but not explode like hydrogen. That's the main reason it's been used for so long, safety. And don't say anything like "It's on a closed track, there is no way it can have an accident." It'll happen. Trains have missed the end of the line stops and crashed into concourses before. Just do this at rush hour and watch the carnage. And if somebody does on purpose as a suicide attack (think 9/11) and you can kiss a lot of innocent people bye-bye.
    • Sorry, H2 tanks do not fail like this. Pressure tanks in H2 cars at 700 bar (about 10,000 psi) are layered and survive a 50 cal bullet. The 2nd 50 cal bullet does pierce the tank which vents with a pretty healty "stream" of H2. If you light this, you get a pretty long low heat blue flame. The tanks just don't tend to rupture. They leak and vent. As H2 is really light, the venting goes straight up. If this happened in a tunnel, you might have a real issue, but then again, diesel (or even worse gasoline) (or perhaps worse than that a battery fire) in a tunnel is super bad.

      A cryo tank has its own issues. But transport LH2 or HHe or LOX or even LN2 and you have the same issues. Because LH2 tanks are only a couple of PSI, they are pretty easy to make and under not a lot of stress. Basically a steel tank with a liner, an air or vacuum gap, and an outer shell.
      • While all of that is technically true, we also have RL examples. Some interest group managed to build a refueling station within 500m of a main artery, resulting in a national media storm as the main artery was shut down following the explosion.
        https://www.nrk.no/nyheter/eks... [www.nrk.no]
        I honestly wish there was a good resource to look up cases of Hydrogen facilities exploding, because they generally don't generate publicity if its far enough away from infrastructure or roads. Even the Wikipedia articles only cover m

        • This incident did little damage and there were no injuries. The closure of the highway was more from lack of experience with H2 than any real danger. H2 is just too light to hang around long enough.
    • Hydrogene wont explode either.
      And if you are in a situation where Hydrogene "could" explode: so would diesel.

  • by caviare ( 830421 ) on Thursday August 25, 2022 @08:09PM (#62823999)

    It's always '/' with metric units. There is no exception for km/h. 'k' means kilo not kilometres.

  • by 140Mandak262Jamuna ( 970587 ) on Thursday August 25, 2022 @08:25PM (#62824039) Journal
    Already battery electric locos with 2.5 MWh of storage are being made. And we can easily mount much bigger batteries on their own tenders like steam locos had coal and water tenders. This opens the possibility of just electrifying main lines, charge the battery while running and run on batteries for the spur lines, sliding, loops etc. Will bring down the cost of electrification a lot.

    Hydrogen is too late to this party.

    • There's nothing "too late" about hydrogen. It is solving a different problem than battery and stands to reason that you'd use low hanging fruit like a train as a PoC. The fact you said "possibility to electrify main lines" is a good idea that you're solving a very different problem than they are.

  • Wait, don't they do the same things as normal trains and take people from one place to another?
  • It's just more efficient than trucks and boats in general.

  • On fixed routes, one can just install electric wires or a 3rd rail. Are losses from generating and compressing hydrogen really smaller vs transmission losses?

    • It's really expense to put those electric wires in, as in over $1M per Km, and some places are geographically challenging to add the wires to as well.
  • by KT0100101101010100 ( 7179190 ) on Friday August 26, 2022 @03:06AM (#62824591)

    Just for those who don't know, this train will need ca. 3-4x the electricity of normal electric trains due to inherent H2 conversion inefficiency.

    Honestly, I don't understand why Germany cannot just electrify their train lines. The only reason I could imagine is nimbyism, and bingo, there it is: https://www.heise.de/forum/hei... [heise.de]

    Switzerland has every single line electrified, some of them in very difficult mountain geographies including the Eiger north wall. And this since decades.

    This reeks of greenwashing and shoving taxpayer money to Linde.

    • Honestly, I don't understand why Germany cannot just electrify their train lines.

      Cost vs cargo handling and benefit on the route.

      Switzerland has every single line electrified

      Switzerland is tiny and spent a metric fuckton on it. They have relatively few train lines which carry a significantly higher portion of cargo (often in transit).

      This reeks of greenwashing and shoving taxpayer money to Linde.

      Your post reeks of ignorance, lacks cost benefit analyses, and doesn't consider that you can't solve every problem by running a cable to it.

  • Passenger trains in the rest of the world enjoy growth and innovation, but NOT in the U.S. and never will on same level. A lot of talk between hydrogen vs. electric vs. coal trains. Doesn't matter here in U.S. as passenger trains will never connect a lot cities. Too costly to ride plus costs that no one wants to pay for building them. How many people do you know have ever ridden in a U.S. passenger train ? We looked into it and it was 2x the times of flying and still even cheaper to drive !
  • One drunk truck-driver can ruin that dream forever.

  • Hydrogen will leak. Diesel and gasoline leaks occur, and they are liquids. Hydrogen will be a gas under extreme high pressure. It causes leaks at valves, filling setups, and more.

    Leaked hydrogen will transit to the upper atmosphere. Where it will destroy ozone. So that really needs to be paid attention to to mitigate environmental disasters.

    And production of hydrogen is usually from methane. So carbon free in final use isn’t carbon free in entire lifecycle. We need to be more aware of energy and en

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