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Transportation

Stellantis Abandons Hydrogen Fuel Cell Development (arstechnica.com) 176

An anonymous reader quotes a report from Ars Technica: For some years now, detractors of battery electric vehicles have held up hydrogen as a clean fuel panacea. That sometimes refers to hydrogen combustion engines, but more often, it's hydrogen fuel cell electric vehicles, or FCEVs. Both promise motoring with only water emitted from the vehicles' exhausts. It's just that hydrogen actually kinda sucks as a fuel, and automaker Stellantis announced today that it is ending the development of its light-, medium- and heavy-duty FCEVs, which were meant to go into production later this year.

Hydrogen's main selling point is that it's faster to fill a tank with the stuff than it is to recharge a lithium-ion battery. So it's a seductive alternative that suggests a driver can keep all the convenience of their gasoline engine with none of the climate change-causing side effects. But in reality, that's pretty far from true. [...] Between the high development costs and the fact that FCEVs only sell with strong incentives, the decision was made to cancel the production of hydrogen vans in France and Poland. Stellantis says there will be no job losses at its factories and that R&D staff will be put to work on other projects.
"In a context where the Company is mobilizing to respond to demanding CO2 regulations in Europe, Stellantis has decided to discontinue its hydrogen fuel cell technology development program," said Jean-Philippe Imparato, chief operating officer for Enlarged Europe. "The hydrogen market remains a niche segment, with no prospects of mid-term economic sustainability. We must make clear and responsible choices to ensure our competitiveness and meet the expectations of our customers with our electric and hybrid passenger and light commercial vehicles offensive."

Stellantis Abandons Hydrogen Fuel Cell Development

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  • by thegarbz ( 1787294 ) on Thursday July 17, 2025 @12:02AM (#65526148)

    is a lie. Or at the very least a mistruth. Firstly it takes far longer to fill a hydrogen car than a gas car due to the careful rate control needed to fill the tank. If you have appropriate cooling and heating systems to maximise density while filling while also preventing the handle from freezing in place it still takes you >6min to fill a car. But there's different hydrogen refueling stations on the market with different capabilities. And certainly some out there take about as long as a refuel on a highway fast charger.

    On top of that hydrogen refueling stations do not store hydrogen at bulk pressures required for vehicles since having a large 700bar tank is hugely expensive and dangerous, instead bulk hydrogen is stored at a lower pressure and compressed before being put into small temporary storage and loaded into your car. This means refueling stations are rate limited often to as little as a few vehicles per hour. Not a problem now, but certainly a problem if every car were hydrogen. This is less of a problem with trucks which run at far lower pressure.

    People have this view that the hydrogen experience is identical to ICE. It's just not. It's more of a hybrid between hydrogen and older EV charging (the first MCS chargers for consumers are being deployed which personally I find insane, we don't need 750kW+ to fill our car in a blink of an eye. ).

    • I keep having people telling me that "we'll just be swapping tanks instead of filling them up like we do with propane it'll be so fast you will love it." But that just seems like an incredible safety issue.
    • by orzetto ( 545509 )

      Lots of inaccuracies here.

      Firstly it takes far longer to fill a hydrogen car than a gas car due to the careful rate control needed to fill the tank. If you have appropriate cooling and heating systems to maximise density while filling while also preventing the handle from freezing in place it still takes you >6min to fill a car.

      Filling time for hydrogen cars is 3 minutes per industry standard. Also, the handle would not freeze in place, because hydrogen heats up when expanding (reverse Joule-Thomson [wikipedia.org] effe

    • by tlhIngan ( 30335 )

      Hydrogen's just stupid in the end.

      You can burn hydrogen like in an ICE, but that's a completely stupid way to do things because the efficiency of doing so is even worse than an ICE.

      The only way to use hydrogen efficiently is to generate electricity in a hybrid EV where a fuel cell converts it to electricity to charge a battery, and you use the battery to power an EV powertrain. This has much higher efficiency

      But that completely neglects the fact that that the conversion efficiency of hydrogen if you try to

  • Good. (Score:4, Insightful)

    by Gravis Zero ( 934156 ) on Thursday July 17, 2025 @12:09AM (#65526152)

    Hydrogen is not a great energy storage medium. More importantly, the primary source of hydrogen is a fossil fuel. Switching to a fully electric source of hydrogen is far more difficult than it is to simply charge batteries. Producing hydrogen is an unnecessary inefficiency.

    • by dgatwood ( 11270 )

      Hydrogen is not a great energy storage medium. More importantly, the primary source of hydrogen is a fossil fuel. Switching to a fully electric source of hydrogen is far more difficult than it is to simply charge batteries. Producing hydrogen is an unnecessary inefficiency.

      And by "more difficult", you mean that there is a massively larger amount of efficiency loss. If you're lucky, you recapture 60% of the energy in the fuel, and multiply that times the 75% efficiency for electrolysis, if you're lucky, and you're throwing away more than half the energy that goes in. So if folks are freaking out about the power grid not being able to handle EVs, imagine what would happen if you doubled the power requirements.

    • Switching to a fully electric source of hydrogen is far more difficult than it is to simply charge batteries. Producing hydrogen is an unnecessary inefficiency.

      Then don't use hydrogen produced by electricity. Or at least not produced by electricity alone.

      There's more efficient ways to produce hydrogen than with electricity. There's perhaps a half dozen promising technologies that use heat alone or heat with some electricity as the energy source. A sample of these technologies can be found with only a few minutes of research on the internet. Those that assume hydrogen is only produced by electrolysis of water, or some process that extracts hydrogen from fossil

      • Then don't use hydrogen produced by electricity. Or at least not produced by electricity alone. There's more efficient ways to produce hydrogen than with electricity.

        Yeah? Name one.

        There's perhaps a half dozen promising technologies that use heat alone

        At extremely low efficiency.

        or heat with some electricity as the energy source

        Back to electrolysis.

      • Then don't use hydrogen produced by electricity. Or at least not produced by electricity alone.

        I think the primary problem with this method is that we immediately became dependent on gray hydrogen because it was cheap and easy. Due to political conditions in the US, non-fossil-fuel based sources must compete economically with gray hydrogen which is all but impossible. Any progress will be seen as a tax and/or simply having to pay more to solve a problem they don't believe exists and they absolute will fight that tooth and nail.

        Competing with fossil-fuels to make an expendable chemical fuel which can

      • Over 90% of commercial hydrogen production is done by methane steam reforming. Natural gas (CH4) + steam (H20) = 3H2 + CO. There's usually a catalyst present to increase the speed at which it happens (nickel oxide [NiO] or nickel alumina [NiAl2O3). It's an endothermic reaction so it requires constant energy input to create the steam and keep the reaction hot enough to happen.

        Why spend all the energy to reform methane into hydrogen with added energy cost, in order to make a fuel that is less energy dense,

    • Even if hydrogen was affordable, cars would be the worst way to utilize it. Railroads would be more sutable. After natural hydrogen extraction comes online it might be feasible. For cars, EVs are by far the best technology going forward.
    • At net zero there are no great storage mediums when batteries don't work for you. The primary source of electricity is still fossil too.

      • The primary source of electricity is still fossil too.

        True, electricity is generated by about 60% fossil-fuels in the US but renewables continue to expand annually. Natural gas continues to expand as it eats coal's lunch but together they seem to be a near constant value. What this really tells us is that a carbon tax is needed to offset the pollution being generated.

  • The convenience of an electric car is every time you leave your house you already have a "full tank". "filling up fast" means you have to go somewhere to fill up that you don't want to be.

    • by bsolar ( 1176767 )

      The convenience of an electric car is every time you leave your house you already have a "full tank". "filling up fast" means you have to go somewhere to fill up that you don't want to be.

      I agree 100% but this is something some EV advocates seem to miss: that convenience is out of reach for many people.

      I live in an apartment complex and I have my dedicated parking spot in the underground garage but the landlord has no plan to install or allow tenants to install charging stations. A lot of people don't even have a dedicated parking spot and park on the streets with a residential permit.

      Without the convenience of overnight charging an EV is not an option I'm willing to consider and I'm definit

      • by hipp5 ( 1635263 ) on Thursday July 17, 2025 @08:10AM (#65526588)

        While that's absolutely true, it will also change over time. New builds are starting to include EV chargers, and retrofits are also happening. Even in buildings that will never be retrofitted, it may still be possible for people to go EV as the wider charging network improves. My sister lives in Vancouver, BC and has an EV in a building with no chargers. It works out fine for her because the public charging infrastructure in that city is widespread enough that "filling up" when she gets groceries, etc. is more than enough.

      • by shilly ( 142940 ) on Thursday July 17, 2025 @08:34AM (#65526624)

        Your example: the landlord isn't feeling any commercial pressure to change yet. But my 85 year old father-in-law died a couple of months ago, and the managers of the little block of retirement flats that he lived in, 90 minutes outside London, UK, in the commuter belt, has just written to my wife to say they're going to put in chargers for each of the flats' parking spots. Because EV uptake in the UK has reached enough of a tipping point. It will happen everywhere in time. The commercial pressures will be there, just like they are for landlords to ensure flats have water and electricity supply.

  • Stupid Idea Anyway (Score:4, Interesting)

    by locater16 ( 2326718 ) on Thursday July 17, 2025 @01:59AM (#65526220)
    Hydrogen explodes, escapes through solid walls because it's so tiny, embrittles metal, costs a decent deal to produce, and has no major established infrastructure for either production or distribution. Even rocketry, which already deals with high explosives and for which hydrogen is a more efficient fuel than common ones like RP1, mostly avoid hydrogen. No competent engineer, chemist, logistic professional, or otherwise would ever suggest hydrogen as a fuel for consumer market vehicles. It's a pipe dream concocted by incompetence and dimwitted executives.
    • by shilly ( 142940 )

      They're only incompetent and dimwitted if you think their intention was to build a viable product, as opposed to create the illusion of a future path to enable them to continue with current tech and disparage the obvious (and viable) alternative. In other words, between malice and incompetence, I'd go with the former in this instance.

  • There is zero infrastructure, besides a few fulling stations in parts of California so these cars can't be sold anywhere else. And the sales numbers are terrible, spend billions to sell 200 cars a year. And why would anyone even want one ? You can't take it on trips, costs 4 times more than filling up with gas or 20 times more then charging an EV at home.
    • Gasoline cars didn't have much for an infrastructure in distributing fuel when first introduced, so the current rarity of hydrogen filling stations should not be considered an impediment long term.

      Early in the development of the ICEV there was the distribution of fuel by cans and drums, with the fuel pumped or poured into the vehicles by hand. There was also fewer restrictions on people that wanted to distill alcohol for use as a fuel. Prohibition killed off alcohol as a fuel for a while, but by then this

    • Hydrogen is a net zero technology, not a low hanging fruit technology. At net zero every energy storage solution for where batteries don't work sucks, so hydrogen sucking will matter less. Until there is some major force pushing hard to abate transport to net zero emission, hydrogen obviously can't compete.

      At the moment if EV doesn't work for you, you just use dynojuice and put CO2 in the air.

  • As someone who likes cars, driving and motorsport, the big issue in battery EVs for me is the weight. When I've had EV or hybrid hire cars, you go "cool" when you hit the loud pedal, then you go "yuck" when you go round a corner. While I love a petrol engine, I'm OK with an electric powertrain (torque!). However, no one has mentioned energy density yet, which for me is the key thing in powering a car. There was a good scientific study a few years back (can't find reference right now) that compared the energ

  • I think Hydrogen was a pathetic greenwash attempt by the fossil fuel cartel.

    Now hopefully people will see through their stupid plan, they will finally FOAD and the rest of us can get on with saving our civilization.
  • by orzetto ( 545509 ) on Thursday July 17, 2025 @05:46AM (#65526450)

    I am a researcher on hydrogen technologies at an independent institute and I have led EU projects for about 30 million euros, so I can claim I have some inside knowledge of the industry.

    Stellantis never had any significant activity in hydrogen, so they are not really giving up anything. Of all the brands of the Stellantis group I have never met one at the meetings of the EU's Fuel Cell & Hydrogen Joint Undertaking; the only one that was ever active was FIAT, not very convincingly and very long ago: they bailed from the H2moves [europa.eu] project more than 10 years ago, never heard from them since.

    Other companies have much better developed hydrogen programs: BMW, Daimler, Volvo, each with its ups and downs. Volkswagen and their controlled Scania have a schizophrenic relationship to hydrogen since a previous CEO, Diess, was very much against, but a lot of engineers were in favour. Outside the EU it is of course Toyota and Hyundai that lead worldwide.

    In any case, it has been clear for years that it is a lot easier to electrify cars for personal use with batteries, and hydrogen FCs have repositioned themselves for the heavy-duty market (trucks, trains, ships). Stellantis does not have any significant activity in this sector, so it makes sense for them to focus what little resources they have on batteries. Of course, if they had any competence in batteries, since they suck at them too.

  • IF long range trucks went for liquid hydrogen, then for vans and pickups a range extended EV using liquid hydrogen starts making sense at net zero. The trucks solve the chicken and egg problem.

    • You still have the major problem of creating a cost effective green hydrogen generation, storage, supply and logistics chain which is the only thing stopping hydrogen working effectively
      • Cost effective is relative. At net zero it competes against different things than now.

        - Dinojuice + direct capture and sequestration
        - primary metal air batteries
        - synthetic fuel

        There will be a huge hydrogen logistics chain for industrial use regardless (volumetric heating in industrial processes, green ammonia, probably steel production too, etc). So that could help a little.

    • The last vehicle to use liquid hydrogen was the Saturn V rocket.

  • Stellantis is a small player. They can't afford super long term projects.

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