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The truth about hydrogen

  • Published on Nov 28, 2022

Comments • 5 694

  • DW Planet A
    DW Planet A  9 months ago +253

    What do you make of the hydrogen hype?

    • The Pantygun
      The Pantygun 3 days ago

      The truth is Gasputin's gases only dilute it with carbon. 😀

    • Richard Fox
      Richard Fox 3 days ago

      Since you need to expend the same energy (plus losses) to split water that you get back by burning hydrogen, it's not an energy source. That's the key, basic law of conservation of energy.
      The hype is waffle and lies.

    • Waqas Ahmed
      Waqas Ahmed 10 days ago

      @Thesilent One Especially true when ground source heat pumps tend to have an average COP of 5, which makes them cheaper than gas (in the long run)
      The big issue is the refrigerants

    • Welingkar Tr
      Welingkar Tr 13 days ago

      There's another issue that needs to be simultaneously addressed, which both big businesses and governments (run by politicians funded by big businesses) are not ready to address: For example, in large urban areas - and a significant population of the world now lives in cities than ever before - we must move away, or drastically minimise, individual ownership of vehicles and shift to mass transportation systems with feeder systems that cover the nearest areas close to stations. Unfortunately the car industry has created this craze for ownership of cars so much that abandoning individual ownership is seen by people as a "loss of freedom". There's much work to be done on that front in different areas raising awareness, making rentals affordable and easily available whenever required, apart from the investment in such transportation systems.

    • D. P.
      D. P. Month ago

      Lobbying, nothing else

  • AlexAlexAlex
    AlexAlexAlex 9 months ago +294

    As a student researching Hydrogen production, I think this video is quite good. Most mainstream news outlets don't really go into detail, they just publish whatever is trendy and grabs attention (like hydrogen cars, planes etc). A more balanced approach is very much needed

    • Rupak Shaw
      Rupak Shaw Month ago

      Bro if it go into detail then no one has a time to watch so so long videos

    • BambinoAmericano
      BambinoAmericano Month ago

      Sure, that is true and such comment is sadly generally valid for mainstream news on all topics, including wars and viruses. Moreover, I find the people become less critical towards the superficial data thrown at us, which constitutes a basis for electing politicians who take poor decisions.

    • Petri
      Petri Month ago

      It doesn't go in to detail here either. Just a couple of quotes from "professionals" and no scientific foundation behind.

    • dave kelly
      dave kelly 2 months ago

      @Dan d5500

    • The Ball
      The Ball 2 months ago +1

      LOL, balanced?
      They didn't even attempt to ask an economist. Pure hopium

  • Nate Shiz
    Nate Shiz 2 months ago +73

    My dad worked for an hydrogen company and he got fired cause he wouldn’t lie about the gas footprint of the industry. He went into petroleum to work on plant emissions and they used him to basically delay and distract. He then quit started an herb farm and quit paying his taxes, sold kratom and legal mushrooms till he died.

    • Cheesus Crust
      Cheesus Crust 18 hours ago

      what a champ lol

    • Sweden
      Sweden 3 days ago

      The only truth and only true love is the chemical. I'll salute your father through the DMT elves.

    • Robert McKay
      Robert McKay 4 days ago

      Yeah sure

    • bush2far
      bush2far 2 months ago +1

      The Acid never lie’s 🤟

    • Pete Busch
      Pete Busch 2 months ago +4

      That's an awesome story.

  • Hasan Mahbub-ul Karim
    Hasan Mahbub-ul Karim Month ago +8

    As a student of Chemistry In my point of view Green Hydrogen is the future. We may have to use mix and match of different type of fuels. We had a membrane type water electrolysis system which was very efficient and easy to build. It just required enough research minimize the production cost.

    • Ulriko F.
      Ulriko F. 4 days ago +2

      I'm not sure about it. Don't forget that an economy, even if only partly driven by hydrogen, will need a gigantic number of new storing facilities, pipelines, trucks, compressors, and thus, raw materials, space, and energy itself. It's about three times more expensive than transporting the generated energy directly by a power grid and storing the energy in batteries and energy buffering plants without an intermediary substance which serves ONLY as a means of energy TRANSPORT.

  • Blue Cube (PCS)
    Blue Cube (PCS) 23 hours ago

    The general consensus in the industries we supply to and work within is that the ultimate final goal is hydrogen: green hydrogen. EVs-no matter how much their battery size is reduced-are still being perceived as the medium solution. This is a very good video though; it's rare to find a transparently balanced one like this.

  • cjcormier26
    cjcormier26 Month ago +125

    One thing that you didn't mention is that the hydrogen atom is very small in size, so when welding pipes the welds need to be perfect or it will leak, also since the energy content is low you need very high pressure tanks (special welding codes) also quite expensive, finally hydrogen has an invisible flame when burning and is orderless so it's hard to know your system is leaking and or burning.

    • Arturo Eugster
      Arturo Eugster 6 hours ago

      @Daniel Gill Yes I remember intercalating hydrogen in palladium , by Stanley Pons and others.
      The whole process has ben vigorously suppressed.

    • Daniel Gill
      Daniel Gill 8 hours ago

      @Arturo Eugster Cold fusion ! seems like it was just yesterday. The Utah embarrasment

    • Daniel Gill
      Daniel Gill 8 hours ago

      @Arvidsfar The main reason Hydrogen is hard to bottle is becauseit has the lowest molecular weight.....hence, by far the highest molecular velocity.

    • Stuart Hirsch
      Stuart Hirsch 11 hours ago

      @John Crook And the tank size, the insulation required, and the highly flammable nature of hydrogen. Example: both the Challenger and Columbia disasters were either the result of a direct hydrogen ignition or a failure of the insulation around a hydrogen tank.

    • Katie Sanderson
      Katie Sanderson 23 hours ago

      @Richard Trygg plus if its high temp, your pipes could not be subject to high temperature hydrogen attack

  • Rajesh Krishnamurthy
    Rajesh Krishnamurthy 8 hours ago

    I think with any future energy adoption, it has to be take it as it comes and keep sharing the development globally - so we cant ignore blue H2 for a green H2 and work towards improving production, storage, safety, make policies at global and local level and incentivize anyone and everyone contributing to it

  • Carl Snorge
    Carl Snorge Month ago +1

    Thanks for this video, I am a huge hydrogen fan but never quite knew what it cost to make. The best example I could see for it was Iceland that has geothermal energy to produce the product for fuel cells. But some questions back.
    The comment that production of Hydrogen only leads to 48% capture of CO2. How does that compare to fossil fuel engines and the like. How does that compare to the electricity needed to generate recharge for battery powered functions?
    Suppose instead you use raw hydrogen to power the internal combustion engine. What are the outcomes for that in terms of the carbon footprint, (CF) of the vehicle output?
    Why is there the suggestion that how hydrogen is produced now will have the same CF once it becomes more integrated into our infrastructure and engineers are employed to make it more efficient, because economics?
    What is CF of the exponential increase in the production of electric batteries to replace the combustion engine in terms of toxic chemicals and heavy metals compared to the CF of hydrogen fuel cells. Bearing in mind, initially at least, the life span of a bed of batteries in a car would be five years before replacement is required. While in the meantime, charge holding efficiency will decrease reducing optimal mileage rates. So the production requirements for batteries would be off the scale.
    Why is the future of hydrogen fuel cells measured on their current efficiency rating given this is in its infancy? The examples abound about it on how familiarity leads to innovation. Chat to Iceland.
    What does need to happen is to have the established fuel companies encouraged by governments to develop clean energy but with the carrot there must be the stick and for the first two decades government audit on how the carrot is used. (I know, the difficulty is true audit and prosecution of cynical companies. I'm looking at you VW).
    So in summary, my observation would be, that while there are problems to solve with hydrogen, the generation and use of batteries does not necessarily outperform as an alternative.

  • Izabela M Sztuka
    Izabela M Sztuka Month ago +2

    It was obvious from the very beginning that one type of technology won't be a magical pill that will solve all issues. We need a diversity of technologies to power societies & economies, such as we don't monopolise one natural resource or another (again). Hydrogen has downsides & costs in emissions. Well, as things stand, electric batteries also cause an environmental disaster with lithium and rare elements extraction. No solution will be totally clean, but we can do our best to diversity the market & keep stimulating the development & innovation of even better technologies.

  • Jeff Hagen
    Jeff Hagen 2 months ago +32

    Interesting. Living in a place with over abundant sun it would seem that using solar energy to recycle water into its gas components would make sense. I would love to hear what innovations are afoot. Surely it's not so simple but neither was harnessing nuclear energy.

    • David Lawrenson
      David Lawrenson Day ago

      Because hotter electrical systems increases resistance within system, a hot environment greatly reduced the amount of electricity produced. Hot sun is great for producing hot water but not for producing electricity. The trouble is, you don't need much hot water in hot places.

    • Kamalakrsna
      Kamalakrsna 14 days ago

      Far sighted people like Bill Gates see a simple solution: gain of function a virus - release it - provide & force all to take the cure (which would hav risin & aids in it -call them: "adjavancts") reduce human kind to a billion & ... we're there ! energy & pollution problems reduced to tollerable level for a few hundred years.

    • David H
      David H Month ago

      @stop censoring me - hydrogen solves the solar & wind energy transporting locality problem… everyone has water in their borders; not everyone has lithium battery sourcing & manufacturing.

    • stop censoring me
      stop censoring me 2 months ago

      @RamsFan Yeah but uranium still has to be mined leaving a messy environmental and carbon footprint of it's own particularly on a scale to power the entire world. Then what about vehicles? All electric powered by nuclear? Again mining and disposing of battery materials poses it own problem on the global scale. Considering solar panels can generate efficiently for 20-30 years a wind solar hydrogen combination is by far the cleanest of all, not saying it's perfect but it is currently the best option we have.

    • RamsFan
      RamsFan 2 months ago +1

      @Jeremy Beltram Yes, he's your dad.

  • Mike Kelly
    Mike Kelly 7 months ago +248

    This is surprisingly well balanced. RU-clip videos in my experience tend to be almost tribal about alternative fuels, either trying to big them up or debunk anything good that's ever been said about them. This is factual, accessible and unbiased. Well done to all concerned.

    • Tony Lupone
      Tony Lupone 2 months ago

      @The Wokefinder General And you know this How? Did you hear it on the Murdoch press Org

    • CGR Phenomics
      CGR Phenomics 2 months ago

      @whybother now nope. You worship the Crown that destroyed your tribe in Europe. You have Stockholm syndrome. Its is self hatred to denigrate your tribal ancestry like that. Tribe is how God intended human societies. The Crown destroyed Gods tribe. Using "tribal" for a group of non related people is non sensical. A political party cannot be tribal any more than calling a bowl of soup a tribe. TRIBE is a culture with a history. Stop being suckers for the people who robbed, killed and destroyed your ancestors. Im done. The world will end living in a non tribal, Godless, violent, woman hating society. Peace.

    • whybother now
      whybother now 2 months ago

      @CGR Phenomics no, in the field of science, ‘tribal’ (used in the sense of this dialogue) is a very very bad thing. For example - and I am not saying this to start a covid debate - but Think about how some of the covid ‘facts’ were almost religiously taken for granted by layman and doctors alike because a representative of the government or pharmaceutical company said so. Many of these ‘facts’ are now being rowed back at a frantic rate by even Dr Fauci (if you follow him in the US) and politicians are distancing themselves from them like a bad smell. This was a prime example of tribal science.

    • The Ball
      The Ball 2 months ago

      Balanced how? Did they even try to ask an economist if this so-called "fuel" makes sense?

    • fr89k
      fr89k 2 months ago

      @Ron Skancke What exactly is not true?

  • james stanley
    james stanley 2 months ago +10

    I think battery materials are limited and if they can't be recycled I think there will be a shortage. I think hydrogen has a great future as long as it's green 👍

    • GB
      GB 2 months ago +1

      battery materials are fully recyclable today and cheaper than the mining and refining system. co founder of tesla has a recycling factory already recovering 97% on the minerals. once all cars are battery driven there will be a closed loop system whereby no more mining will be necessary. this is already happening.

  • Mark Neeleman
    Mark Neeleman Month ago

    Hydrogen is definitely one of the fuels of the future. It is easy to produce, easy to store, easy to use, and has no emissions at point of use.
    You can make it anywhere from any power source, store it in literally just pressurized steel vats and use it in all kinds of applications both through fuel cells and combustion type applications. Depending on the way you deal with the residue from your water source, you can even use it as a way to decontaminate or desalinate water to some extent. Steel mills are usually already close to or besides the sea. Using salt water instead of fresh water for hydrolysis actually turns the waste product of the steel mill's energy use into fresh water, another resource that is scarce.
    Just because battery technology is "cheap" now does not mean it remains so in the future. Especially considering the lithium and rare earth metals required to make them usually coming from sources that are easy to lose access to. Not to mention the production costs of an EV in terms of emissions are very high.

  • FatheredPuma81
    FatheredPuma81 2 months ago +68

    I think the backbone being Nuclear and renewables with Hydrogen to replace Coal plants and as energy storage would be a pretty decent idea.

    • Peter Matthews
      Peter Matthews Day ago

      @Uncommon Japan has been storing waste unsafely alongside its reactors on unstable ground for 50 years with no safe storage in sight. Australia should not sell uranium unless it can take the waste back and store it safely, and cost that into the price that the fuel is sold for.

    • Peter Matthews
      Peter Matthews Day ago

      Japan (along with other countries I hope) is looking for nuclear options that reduce radioactive waste production… if that can be done then nuclear might become a rational option as a source of heat energy for conversion to electricity, hydrogen etc.

    • Waqas Ahmed
      Waqas Ahmed 10 days ago

      @John Foot Fortunately, ITER gets a decent amount of funding. We get ever closer to fusion

    • kero pnw
      kero pnw 2 months ago +1

      ​@Ralph Boardman this is simply untrue and a result of statistical manipulation to not include the extreme costs of 'renewable’ infrastructure and storage. Nuclear France has the cheapest electricity in Europe, Germany and California the most expensive in their respective regions.

    • Albanian American in Michigan
      Albanian American in Michigan 2 months ago

      @Ralph Boardman problems with renewables is there will be blackouts if it’s rainy and cloudy for days. And we’ll built nuclear plants can withstand and weather than a solar farm. If you didn’t know nuclear plants are built with multiple meters of concrete and steel encased around the reactor where it can survive direct artillery strike as we seen in the Russo Ukraine war today.

  • Richard Anderson
    Richard Anderson 2 months ago +3

    The supply chain supporting "green energy" is heavily reliant on fossil fuels. Converting electricity to hydrogen that then goes to fuel cells is a dead end solution for most applications, since it wastes way too much energy, that would be best used directly or stored in a battery. While there is lots of talk about batteries, the raw material supply is currently short for the current demand for high efficiency products, much less meeting a 80 fold increase in use to power transportation. Plus the environmental issues associated with production and disposal/recycling. The technology needed to go ahead with truly green energy is a quality, cheap, easy to produce non-toxic battery. That might be discovered this year, or next century. Until then we are wasting resources and creating needless pollution and suffering trying to reach a goal beyond our technological grasp.

  • gascal018
    gascal018 Month ago

    Excellent video showing pros and cons of hydrogen. But still I see two points not covered here:
    - impact of metals extraction and exponential need for them into renewable energies
    - the very short term storage of hydrogen ( few days max).

    • Jephro Kimbo
      Jephro Kimbo Month ago

      actually it is a couple HOURS, not days! just examine the latest attempt by nasa to test their newest rockets.

  • Gerard van de Ven
    Gerard van de Ven 24 days ago +5

    Thank you for this video. I feel it explains things quite well. Personally I think we are going to need Hydrogen for specific things, in air travel for example. But as the video explains, for simple cars it does not seem to make sense, especially with batteries getting (much) better, lighter, and able to store more energy. But we cannot focus on just one solution only. We need different solutions for different cases, and I expect hydrogen has an important place.

    • Itsgottobesaid
      Itsgottobesaid 9 days ago

      If they put it in planes that's it for me for travel.

  • Anvil Dragon
    Anvil Dragon 2 months ago +4

    I could see a use of hydrogen in agriculture. Solar converting water and compressing. Early adoption would likely be hydrogen fueled diesel tractors with a slow transition of fuel cell versions when available. Batteries have material availability problems, along with the large holes in the ground and the toxic chemicals used, that are far from green.

  • chris dyer
    chris dyer 2 months ago +4

    You didn't explore growing Bio-hydrogen through the harvesting of hyrogen from microalgae. Growing algae and then harvesting hydrogen, a by product of photosynthesis may prove to be the most economical and environmentally friendly hydrogen production method of all particularly as they also consume vast amounts of carbon dioxide as well. A double benefit.

    • Shyamtanu Banerjee
      Shyamtanu Banerjee 2 months ago

      Yes someone should be talking about this but the greedy petroleum lobby won’t let it go easily

  • Ladislas C
    Ladislas C 2 months ago

    Thank you for the honnest and complete video. It is a good overview of H2 today.
    However I would like to point out some flaws:
    - First there is already a huge H2 market, mostly to produce NH3 but we should focus on these markets first cause it will already take decades to decarbonize NH3 prod. We will get higher veggies cost, but it worths it
    - Second, the bloomberg report on H2 is ridiculous regarding predictions, not based on any science but just ideology and linear regressions. H2 prod with renewables works mainly with PPA, so constant electricity from network and not only actual renewables. If so, the production won't be continuous and H2 cost will remain high. And to get an electricity network stable with high proportion of renewables, its costs a lot more than the electricity today, so no big H2 cost reduction...

  • Chris Wilson
    Chris Wilson Month ago

    Just watched your very informative video on Hydrogen. My understanding is that the byproduct of burning Hydrogen is water, the question is what happens to the water produced. If used as fuel in a vehicle is the water stored in the vehicle or released to the atmosphere as water vapour. If released as WV does that not add to GHGs given that WV is the most abundant of the GHGs.

    • Gareth McRae
      Gareth McRae Month ago

      Water vapour is a greenhouse gas? ELI5 please...

  • Uber Donkey
    Uber Donkey 12 days ago

    When it comes to energy it always seems that there are unspoken drawbacks and we're still at the point of 'what is least bad'. I definitely think paying true cost of a fuel (inc. repair of environmental damage) would level the playing field, but governments like to use green taxes to pay for pensions or health car, not the environment, so they're conning the public, and the true cost of energy can damage current economies,.so is unpalatable.
    Green hydrogen I think is useful in certain situations. Of course the best energy is very situation dependent.. I'm in Malawi with 14% grid electrification and few current alternatives to burning charcoal and wood for energy, causing hige deforestation.

  • william collins
    william collins 2 months ago +8

    Places like Quebec apparently have excess hydo power. It could act like a battery where places that have periods of excess power could use it to make hydrogen to use during periods, ( windless or sunless days) of high demand or low output.

    • Rick Schroth
      Rick Schroth 8 days ago

      Exactly .. or like Manitoba .. we have Lake Winnipeg.. largest battery in the world 🤔😉😂

  • Damien LIEBER
    Damien LIEBER 8 months ago +67

    Green hydrogen is a solution and a necessary solution, but not the solution. Nothing is binary, especially not in our complex energy systems. Let’s not either discard or solely focus on hydrogen, it’s a piece of the puzzle and that’s how it’s being thought of in the real world

    • B
      B Month ago

      @Michael Davison the efficiency is even very high. Its among the highest available. Fueling a car with conv. fuel has 40% effiency or so.

    • B
      B Month ago

      @Michael Davison yes

    • lokensga
      lokensga Month ago

      @Michael Davison Your last sentence is true, but the price of large-capacity storage batteries is rapidly declining and so will displace many green hydrogen solutions.

    • lokensga
      lokensga Month ago

      @William Sharp Uh, no. Ever heard of an XYY male? And other variations whose chromosomes are other than the usual XX and XY.

    • Dan
      Dan  2 months ago +1

      @Michael Davison yepp.... many people don't understand that something is more than nothing. " Low efficiency" is a MUCH better than zero ...nada....

  • Scott Strawbridge
    Scott Strawbridge 2 months ago

    It's pretty simple. Use energy from renewable sources in every situation you possibly can.
    For cases like shipping and air craft, where you can't use electricity directly (you can't store enough energy in batteries for direct storage to work) find the most efficient energy conversion method you can for converting the spare energy from renewable energy production into a fuel store that can be used in these cases. Hydrogen, ammonia, flow through batteries... whatever makes sense.
    Everything else is a distraction. If hydrogen is produced by anything except genuinely green sources it's a distraction. And it's a distraction paid for by an industry with a huge amount of money, a lot of money invested in political ties and a vested interest in dragging their feet as long as they possibly can. The transition will take time, planning and a lot of political will. And the transition will involve fossil fuels, nuclear and whatever other non-ideal solutions, as we live in the real world. But thinking that a hydrogen economy is a solution is just a horrifying misunderstanding. Hydrogen should only be used in cases where we are FORCED to use it, if no better alternatives exist.
    It took a decade for CFC production to be phased out just in DEVELOPED countries after the 1987 Montreal Protocol agreement (CFCs phased out in 1996). It took 23 years for them to be phased out in DEVELOPING countries. Source: www.britannica.com/event/Montreal-Protocol. Think of how many more people and more money is involved in fossil fuel production than CFCs.
    Grey hydrogen is MUCH worse than burning the stuff directly, as you at least get the full benefit of the energy conversion of C to CO2 (H to H2O releases much less energy) and don't have to bother wasting energy by trying to find a way to pack it away somewhere. "Blue" hydrogen is an excuse to keep extracting fossil fuels in the hope we can magically, feasibly, sustainably and cheaply keep the carbon locked away somewhere. It's a marketing strategy, and it's a lie/delusion that our grandchildren will hate us for.

  • Van Van
    Van Van 2 months ago +5

    So important that the information as shared in this video is shared with the population. So many people don't have a clue and take what big oil says for granted. They have interest you filling your car up with their hydrogen. The planet does not. And you neither.

  • oldschoolguy
    oldschoolguy 2 months ago +2

    Since most of the hydrogen processes are wasteful, I think we shouldn't use it except for where it is the only thing that does the job, like iron smelting, and possibly aircraft.

  • PS Paul Stewart ~ Interviews and Inspirations

    I think there was a good comment from an expert at the end there. It showed how these time-based goals are flawed. They create pressure and poor decision making.
    To me, it’s more about a balanced approach. Not panic.
    We have good sources of energy that we know. But we are also recognizing that we can evolve that and do better. We can do it cleaner.
    But can we be honest? Can we be balanced? Some companies seem to struggle with that.
    So, we need to proceed with wisdom, pure intention, and steady ease.
    It’s not really that difficult.

  • Akshay KR
    Akshay KR 7 months ago +12

    Hydrogen liquefaction is further more energy intensive I think and hence, liquifying it for future use is a really hard process especially when it comes to regular automotive and domestic use. But for the industrial purpose it could be.
    Hydrogen for the industry is more realistic and could provide more efficient than the renewables, I think, than focusing on hydrogen propelled cars and trucks.
    But does the renewables to generate green hydrogen are really green in nature? I doubt that.

    • Thomas Maughan
      Thomas Maughan 2 months ago

      "Hydrogen for the industry is more realistic and could provide more efficient than the renewables"
      However it takes a LOT of energy to separate hydrogen from water. More than you get back, actually.

    • fred jones
      fred jones 3 months ago

      Hydrogen is renewable genius.

    • Drake Koefoed
      Drake Koefoed 3 months ago

      if you use solar cells to make it, it's green. of course you still have to recycle the old panels.

    • Yiori
      Yiori 7 months ago

      That's why ammonia will be used for transport and storage.

  • ushoys
    ushoys 2 months ago +2

    Clean Hydrogen must be manufactured by electrolysis, so its only value is as an energy storage medium. It’s also not cheap to make unless there’s a large excess of electrical power that comes from non-carbon sources.

  • Josi Dasilva
    Josi Dasilva 2 months ago +2

    You did not mention hydrogen through ionization with PWM (3kHz/10kV) on atomized water (possibly on demand/without need for storage); Compressing and freezing air (with many other useful chemicals as a result). The low efficiency of hydrogen production is meaningless when compared to the environmental destruction caused by harvesting other energy sources and the simplicity on the methods to extract it from water, which has significant room for improvement.

  • john smith
    john smith 2 months ago +3

    Something only briefly mentiioed in this video are the major problems of transporting and storing Hydrogen. As clearly evidenced by the Artemis 1 SLS failure to launch this week. Hydrogen is extremely "leaky", it also requires much larger storage tanks due to its low density. These two factors alone will require vast subsidies to make Hydrogen cost competitive.
    Net Zero is an admirable global aim but the timescale to get there HAS to be extended. What point in a net zero world when every country that pushes it is bankrupted? Add to that the major fossil fuel users have no intention of giving up using fossil fuels in the near future and net zero in the next decades becomes even more untenable. CO2 produced in China and India will not hover over those countries but will circle the globe.

    • Leslie Fish
      Leslie Fish 2 months ago

      With solar-electric plants it can be made on-site. And those solar-electric plants can be small, and even portable.

  • Tony Heiderer
    Tony Heiderer 2 months ago +3

    More recent information about the advantages of hydrogen engines is focused on the limited resources of lithium worldwide to make batteries for the estimated number of transportation vehicles necessary to make any difference. Hydrogen to make electricity for battery powered cars is a great idea, but there may not ever be enough lithium to make the batteries.

    • lokensga
      lokensga Month ago

      Latest take is that there WILL be enough lithium to make the batteries for cars. Large capacity storage batteries will not use lithium, thus easing the demand for it.

  • Armstrong jonathan
    Armstrong jonathan 2 months ago +45

    For many countries where the availability of renewable energy is limited, either by space or natural resource, it is reasonable to assume that green hydrogen is a pipe dream. Some countries, such as Australia have an abundance of natural resources including wind, in the North of the continent Easterly winds blow consistently for 6 months of the year. In that same area there is a 2000 Km coastline with tides of 7 to 10 metres complete with many chock points where tide races run at between 8 and 12 knots. Though there is little Government interest in investing, there are several private organisations working toward a Green Hydrogen environment. Australia is a unique environment that needs to work toward a hydrogen solution. Most transport relies on trucks, these massive 100 tonne vehicles travel between 1000 and 3000 kilometres and battery will never suffice. There are problems with batteries, repeated recharge cycles reduces their life expectancy, high ambient temperature reduces efficiency, lighting and air conditioning draw large amounts of power as do refrigerated transport, and the list goes on . The issue is not with creating hydrogen, but storage and transport.

    • Tacitus
      Tacitus 14 days ago

      And Australia can export hydrogen to countries that have a harder time producing it.

    • Euan Dykes
      Euan Dykes 29 days ago

      If moving energy from green generation is the challenge. It still might be overall more efficient to charge a battery ship and ship that to a port of load demand. Or move the heavy industry to the place of green generation.

    • Chris Edwards
      Chris Edwards Month ago

      Like Orkney in Scotland it is using tidal hydrogen to power the docks and there is a vehicle fuel cell charging station.

    • Rafa Nadir
      Rafa Nadir Month ago

      @Damien Jambu And how exactly are we going to burn NH3?

    • Mahesh S
      Mahesh S 2 months ago +4

      I partly agree with you, i am an Indian. Here govt is thinking to release hydrogen trains by 2023 end and I hope the transportation of hydrogen then carried out with the help of these trains which would reduce the usage of oil based emissions.

  • David Almeida
    David Almeida 2 months ago +1

    Hydrogen is an important part of the mix of energy we will need to get to carbon free world but it won’t be the most adequate in every situation. Plus, there’s also PINK hydrogen, which is the one generated from nuclear energy, using small nuclear reactors. Japan is doing a great effort using this latter method

    • Ryouko Konpaku
      Ryouko Konpaku Month ago

      Yeah, their experimental HTGR type reactors could in simultaneously generate hydrogen from the high heat and electricity that isn't considered in this video. Once those are actually in use and online, they would likely be far more feasible for generating a large and stable amount of hydrogen for fuel and still remain a relatively clean source.
      It kinda lines up with Japan's recent renewed interest back to nuclear energy to lessen its reliance on imports (which made electricity pretty pricey here) as well as the govt's plan to be a hydrogen society in the near future.

  • David Edward
    David Edward Day ago +36

    I’m new to all this, heard it's a good time to buy and basically I've just got cash sitting duck in the bank and I’d really love to put it to good use seeing how inflation is at an all time-high, who is this SamDeymon that guides you, mind I look them up.

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    • Henry Nathan
      Henry Nathan Day ago +5

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      Henry Zachary walter Day ago +7

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  • Keiko & Kenzie Sirasta

    Australia's CSIRO developed a liquid similar to ammonia that had a large amount of hydrogen. This liquid could then easily be turned into hydrogen in the vehicle and the other elements are filtered out of the liquid. Large scale transport of low temperature, high pressure extremely flammable gases is fraught with problems, let alone the cost of any type of hydrogen.

  • Dave Wickizer
    Dave Wickizer 12 hours ago

    He seems to have the answers. But I get the feeling he is working for someone in the business. My chemist buddy says pressure is a huge problem and most won't admit how dangerous this is. Maybe we need to go a complete different direction on fuel. There has to be a simple fuel that doesn't require so much refinery and chemical additives.

  • Tommas H.R.
    Tommas H.R. 9 months ago +1650

    A big misconception about Hydrogen is that its NOT an energy source, but an energy carrier. Alot of people have been talking about it as the solution to our future energy needs without mentioning that we need an enourmous amount of clean energy/renewable energy to produce, store and transport Hydrogen. But Hydrogen still has its uses to clean up some industries!

    • João Vieira
      João Vieira 12 days ago

      You dont know about the new way of produce h2 developed recently in japan with a new secure nuclear reactor. The new generation of nuclear reactor makes it almost clean. They will develop a Technologie to deal with nuclear waste.

    • MrSneakyCastro
      MrSneakyCastro 13 days ago

      H2 plus O2 is energy bruh

    • Les Bendo
      Les Bendo 16 days ago

      Very true.

    • Abhi 739
      Abhi 739 28 days ago

      @brainsizeofplanet cost and land of wind turbine installation is the main factor, lithiums already been replaced by sodium ion cells, thats an area companies can look at. Wind energy although converts 50% of captured wind compared to 23% for solar, one turbine needs 2 acres atleast producing say 2.75mw, while solar per sq km can produce 180+ MW

    • Euan Dykes
      Euan Dykes 29 days ago

      That's why it's better to compare hydrogen to battery technology. Or grid transmission.

  • Jordan Eastern
    Jordan Eastern 2 months ago +1

    I have a question, how often are the climate goals reviewed? Given that nations seem to be struggling at present to hit the “targets” that were originally set out do the climate change people think there is time to review the targets to make them more achievable.. or have governments across the planet been asleep for so long now that things have gone “past the point of no return, no turning back now”.. to quote phantom of the opera..
    Are we all to late?

  • form76
    form76 14 days ago

    While I respect DW and what it stands for, I would suggest you also make a video on the people lobbying for H2 and their vested interests, namely the WEF, Bill Gates, Klaus Schaub and so on. That will put things on perspective when they actually over hype Climate change and provide an equally hyped H2 as a solution.

  • Edgar Escandar
    Edgar Escandar Month ago +4

    Excellent video with clear point to digest and ponder upon. I think the t worth pursuing. It seems that the biproduct, water, can also help water shortages in some places. I'm all for it's further research.

    • Jaden Spires
      Jaden Spires Month ago

      I agree with you sir. There are two (not so known) channels I recommend you check out: 1. Hucks&Trucks 2. Edward Mitchell
      It would take long for me to explain all of these details but these guys are making new hydrogen tech that you may find interesting

  • Bob Wrathall
    Bob Wrathall Month ago

    I have noticed that the new version of fission reactors can be placed near facilities where hydrogen is used in manufacturing.
    The reactors can make hydrogen very cheaply and sidestep the need for electricity first.

  • Jason Brown
    Jason Brown 3 months ago +11

    I did not know that H2 could be used (i am assuming) in place of coal->coke for steel production...this is exciting and impacts just about everything including "renewable" energy production. I am glad to see that you are looking at what the actual numbers and science are. People seem to be ignorant to the fact that oil/gas/coal are still needed to build electric cars, electrolyzers and fuel cells. We need to look at the entire carbon footprint of say an electric car from raw materials out of the ground to the scrap-heap. The only thing you ever hear about is the part in the middle...when the car is in operation. My opinion is that we should be developing more sustainable nuclear power such as modular reactors, thorium and breeder reactors (for instance to power a steel plant and produce hydrogen by electrolysis for the process or power chemical plants and oil/gas refineries). Hopefully fusion will become practical one day before we run out of uranium. To answer your question above I do not think we can every truly get to net-zero at least until we can find a way to make all the materials we need without any kind of fossil fuels which may be impossible or in the very distant future.

    • Paul Bedichek
      Paul Bedichek 2 months ago

      Yes,of course, and those modern nuclear plants are comming,Europe may not care about their Carbon footprint, but they want cheaper power than the gas they are paying for now. For now they'll increase coal and gas use and start using more oil in power production, since they eschewed nuclear they are stuck with fossil fuels and the main thing is to reduce the vast support they give Russia in their genocidal invasions.
      NuScale plants go from first concrete to grid power in 40 months, EU5.5/Kwh,and load follow wind and solar,plus are good for district heating, industrial power, desalination,and H2.Nuclear has always been our safest power by a long shot, and doesn't have the massive waste problem solar has.

    • Jason Brown
      Jason Brown 2 months ago +1

      @avoice yes this is true. However this cab always be added later and overall I would think getting rid of the coal is a good step. Natural gas is cleaner and could be used to as the carbon source. I believe that Net-Zero is not truly achievable.

    • GB
      GB 2 months ago

      @Fred Schnerbert it's not much greater and the calculation that counts is the lifetime of the vehicles not a single data point.

    • Fred Schnerbert
      Fred Schnerbert 2 months ago +4

      My understanding is Lithium mining is S America is much like COAL strip mining, and produces a lot of CO2 per pound to produce. So the CO2 to produce an electric car is much greater than that required for the production of ICE vehicles

    • dave u
      dave u 2 months ago +2

      It would be the most expensive steel ever produced.

  • Douglas Firth
    Douglas Firth 13 days ago +1

    As efficiency improves hydrogen will become a staple fuel or internal combustion .Ffinding more compact forms of storage would be ideal or a closed loop electrolysis to fuel and water to fuel

  • Parr Snipps
    Parr Snipps 17 hours ago

    I don't think we can get away from needing hydrogen, at least for some forms of transport, like ships, trucking, locomotives. Currently there is a tech race to bring down the price per kilogram. Unless we want to heat up past 2C, we will need hydrogen. What fuel is a viable alternative? Algae oil - that was tried but never scaled up.

  • CmdrTobs
    CmdrTobs 2 months ago +1

    DW actually does an ok report for once..... relaying basic things that were known decades ago and spelled out in the book "The hype about hydrogen"

  • Michael Lorton
    Michael Lorton 6 days ago

    Former USAF flight surgeon here. Hydrogen has a low volumetric energy content so you must store it under very high pressure in order to extend the range of an airplane to commercially-viable distances. As noted, hydrogen is a very small molecule that readily escapes containment unless very expensive alloys and manufacturing techniques are employed. Significantly reduced atmospheric pressure at altitude means that such hydrogen fuel tanks will be subject to significant high intensity expansion-contraction metal fatigue. Non-metallic connectors and valve components are at even greater risk of failure. Catastrophic failure is almost guaranteed over usual useful lives of airframes. The excessive fuel tank weight decreases thrust-to-weight ratios. Frequent x-ray or other structural integrity testing increases costs and ground time. Frequent fuel tank replacements increase costs and reduce sortie rates and aircraft readiness. A small number of short-haul test flights is inadequate to proper safety testing. Ships, maybe; for airplanes, we really need much more realistic life-cycle data.

  • Prof. Puggle
    Prof. Puggle 8 months ago +5

    I'm surprised that the *CO2 equivalent cost of producing the renewable energy source to produce the hydrogen* isn't discussed more regularly and at greater length.

    • Jo-Erlend Schinstad
      Jo-Erlend Schinstad 4 months ago

      Because the cost of construction is divided by longevity of production. For instance, Norway has some 1700 gravity powerplants. These were not free to construct, but each century we make use of them, lowers those costs more and more, until it's completely negligible. That's the most important reason why capitalists are against renewable energy, because it requires you to think in centuries, which a capitalist can't. After all, all capitalists will die soon.

    • Andrew Condon
      Andrew Condon 7 months ago

      Yup those are the real convos that struggle to be had.

  • Tom Donahoe
    Tom Donahoe 2 months ago +9

    Hydrogen is actually an energy "currency". Seems like one of the best applications for green Hydrogen might be aviation.

    • legacyofpop
      legacyofpop Month ago

      @B That's interesting, Ben...Thank you for giving me food for thought. Several sources for inspiration.....Local small scale to assist industry...and seawater...Cool.

    • B
      B Month ago

      @legacyofpop yes, solar panels and hydrogen tank is optimal for decentral households in my opinion.
      Having a hydrogen grid would be even better. Since electricity cant be transported over large distances.
      All steel plants etc. could than just buy the hydrogen produced by the households.
      As soon there is a overproduction of electricity one could build hydrogen.
      Secondly one could Transport treated seawater as hydrogen into dry regions and convert it into water to supply farms.
      Than one sends back the electricity through the Grid. And install solar parks to produce electricity in the dry regions of the world.

    • Jephro Kimbo
      Jephro Kimbo 2 months ago

      @legacyofpop AT WHAT COST? the Apollo missions cost in excess of $20,000,000,000+ dollars that is OVER TWENTY BILLION DOLLARS OF TAXES and the original budgets in the early 1960s was for a program that would cost $2,000,000,000+ dollars! the massive expenditures required were off by a FACTOR OF TEN! hydrogen production is an ENERGY HOG! in other words it requires MORE ENERGY TO PRODUCE THAT IT GIVES OUT! THINK ABOUT THAT FOR JUST A MINUTE! in other words would you spend a dollar to earn just ten cents! if so, how long would it take for you to go BANKRUPT!

    • legacyofpop
      legacyofpop 2 months ago +2

      Do you think that small scale production and storage of hydrogen on a singular, or individual household scale might be a step in the right direction..? I understand that large corporates want to be dominant and profiteering from energy etc..but I feel that if we don't attempt and experiment with these ideas, no progress will be made. Did early aviators know that thier efforts would begin the space race..and lead to lunar landings and missions to mars...? There must be some value in positive effort today...urgently, I would argue...for the sake of our planet.

  • Peter Chandler
    Peter Chandler Month ago

    Great to see a sort of balanced view, though I do think excessively optimistic...
    Big hype around heating with hydrogen recently here in the UK, however some pesky scientists showed that you would need about 6 times more energy to heat homes with hydrogen than you would with heat pumps, BBC News article "Study contradicts Rees-Mogg over hydrogen for heating" covers the issue..
    Ask Joe did a video considering hydrogen cars, and if they really are dumb, where he goes through the energy costs from source to wheel motion for cars:
    Petrol / diesel converts about 15% of the original energy into motion
    Hydrogen converts about 27% of the original energy into motion
    Battery EVs convert about 80% of the original energy into motion...
    So hydrogen needs 6 times more energy if used for home heating, and about 3 times more energy to drive the personal transport network... Not looking so promising there...
    Engineering Explained on youtube looked into solar powered cars recently, crunched the numbers suggesting that going for hyper efficient cars like the Aptera (about 10 miles per KWhr energy consumption) are a practical proposition, although the greater practicality of the Sono Sion may well appeal to significant number of drivers (Lightyear Zero will be an interesting footnote in history?). On that point, you were misleading over hydrogen driving vehicles, they do not power the vehicle directly but trickle charge a traction battery that is more able to meet the variation of instantaneous power that personal transport vehicles need; with the solar vehicles the same, the bodywork solar PV trickle charges the traction battery (that can also be recharged as other BEVs) that actually drives the vehicle, with the best case being the Aptera with the full solar package getting up to 40 miles per day extra range in the sunnier parts of the world such as Southern California / Texas / etc., enough to cover the use of not far from half of American drivers without plugging in to recharge except those occasional long road trips.
    Shipping is seriously looking into ammonia, as they have been carrying ammonia for decades so know it well, and does need a lot of work to put it through existing engines. On that point, there were some serious issues you ignore..
    Embrittlement is that nasty habit hydrogen has of wrecking widely used materials in our energy pipe network, and in so much of engineering which significantly escalates the cost of using hydrogen...
    As hydrogen is the smallest molecule, if has this habit of passing directly through some widely used materials significantly increasing the infrastructure/ storage costs for hydrogen.
    Electrolysis carries a significant energy cost, as does the recombination, meaning that as an energy storage medium hydrogen returns well under half of the energy originally put into hydrogen.
    Hence the question of why all the hype? In my view the fossil fuel industry has the money to ... distract politicians & media into projects that offer no climate value, but are a greenwash over protecting the revenue of the fossil fuel industry as grey hydrogen would tend to be used as a stop gap in getting these projects up & running, and their maybe not so early days with the attendant large climate costs the fossil fuel industry would really like us to ignore. Great youtube video 'Honest Government Ad | Carbon Capture & Storage' that is a short documentary with a ... light touch but correct numbers that encompasses hydrogen towards the end of the video.

  • Eric Johnson
    Eric Johnson 2 months ago +1

    There was a seminar broadcast on, I think, UCTV a number of years ago that said that the only way that hydrogen could work for powering fuel cells is if there was a hydrogen plant to make hydrogen in most every town. This was because the energy it takes to transport the hydrogen is so great that some distance (something like 200 or 300 miles) would be more than the energy you could get from the hydrogen. So for hydrogen to be effective, it must be produced reasonably close to where it is used.
    Is that true?

    • Reynaldo Ps
      Reynaldo Ps 2 months ago

      of course, you can use sewage plant , electrolysis also help them to treat the water

  • Michael Greenwood
    Michael Greenwood 2 months ago +1

    No matter what form of energy we use, the thermodynamic law of entropy tells us there will be environmentally damaging waste products emitted. The question is, what form of energy allows us to collect the waste products most efficiently? It seems that nuclear energy is best in that regard as long as safe reactors can be built that won't run the risk of a meltdown.

    • trysometruth
      trysometruth 2 months ago

      "Nuclear waste, such as the waste that has been generated by nuclear power plants worldwide, can remain dangerously radioactive for many thousands of years. For that reason, they must be disposed of permanently, experts say. About a dozen countries, including Finland, Switzerland, and other European nations, are planning deep geological repositories for their nuclear waste. In the US, government officials have proposed storing the country’s waste in a repository beneath Yucca Mountain in Nevada. For now, waste accumulates mainly where it’s generated-at the power plants and processing facilities. Some of it has been sitting in interim storage since the 1940s."

  • pasoundman
    pasoundman 9 months ago +5

    Congratulations on providing a well-balanced video on the subject. I view blue hydrogen very sceptically indeed, I sincerely hope it doesn't even get a toe-hold, There's not even any certainty that the captured CO2 will REMAIN in the ground ! With ships, I think the long term future may be small nuclear plants actually, likely on the thorium fuel cycle. Hydrogen seems to meet intermediate scale applications well though. Even trains perhaps where electrifying a rail line isn't economical.

    • Scott Dean
      Scott Dean 9 months ago

      While I know submarines are not the type of vessel you were thinking of when you talked about "ships", the US Navy has Trident submarines that are run with nuclear energy, so it can be done.

  • Carlos Bernuy López
    Carlos Bernuy López 26 days ago

    I was very happy with the video until the last question to the audience: "Is hydrogen the fuel of the future? Or should we focus on other alternatives instead?" 🤦‍♂🤦‍♂🤦‍♂

  • Phill CC
    Phill CC 2 months ago +1

    mix vegetable oil (renewable) with oxygen , in a standard internal combustion engine , the amount needed would be much less than comparable diesel usage , so fuel and output efficiency is greatly enhanced

  • darkhorse2reign
    darkhorse2reign 2 months ago +2

    "Backwards" demand can assist green Hydrogen development. What I mean is developing personal sized green Hydrogen products for use at home (water heater, fridge power, backup power, heating small spaces such as the garage or ice melting, camping/campers, etc.) That type of backwards demand from the micro side creates some capital and excitement at a smaller (likely easier) level vs industrial scale.

    • Rajesh Krishnamurthy
      Rajesh Krishnamurthy 8 hours ago

      True ... in fact my thoughts are similar even for the Solar ...instead of large Solar PV its the Solar Rooftops that will help build energy security at local level at low cost incentivized by the govt without major ecological concerns

  • Joe Delaney
    Joe Delaney Month ago

    I'm hoping Canada, and Germany, work together to develop the use of hydrogen, to better the environment

  • Socially Distant
    Socially Distant 7 months ago +139

    Small Modular Reactors could provide on-demand hydrogen, even in remote locations. This would get us off carbon fuels AND batteries (you neglected to point out the huge environmental cost of battery production, or the fact that China has most of the world's rare earth minerals), and allow time for the further development of green energy, which cannot sufficiently meet demand in its current state.

    • Andy Grace
      Andy Grace 2 months ago +1

      China is the main producer of "rare earth" lanthanides and actinides (which aren't very rare) because isolating and processing them is hard and so environmentally unfriendly that western countries don't want to do it. There are rare earth deposits pretty much all over the globe.

    • Larry
      Larry 2 months ago

      @Brian Don't forget Afghanistan

    • user936
      user936 2 months ago

      @Niles Butler well I just found some Stanford coursework on the subject.
      "Different types of energy plants can be compared via a levelized cost of electricity (LCOE) - the price that the electricity must fetch if the project is to break even (after taking account of all lifetime costs, inflation and the opportunity cost of capital through the application of a discount rate). The LCOE of nuclear energy plants coming online in 2020 was $95.2/MWh, comparable to conventional coal ($95.1/MWh), above conventional combined cycle natural gas-fired plants ($75.2/MWh) but below conventional combustion turbine natural gas-fired plants ($141.5/MWh). [6]"
      - Nuclear Power Economic Costs, Kalvin Wang May 4, 2018
      Energy storage isn't a topic - the answer is *no, not right now for sensible money*.
      Regarding wind options:-
      "The reference offshore LCOE project estimates are $85/MWh for fixed-bottom
      substructures and $132/MWh for floating substructures, with a single-variable sensitivity range of $63-$122/MWh for fixed bottom and $83-$174/MWh for floating. This range is mostly influenced by the large variation in CapEx ($2,570-$7,080/kW) reported by
      project developers and is partly a function of differences in water depth and distance to shore."
      - 2019 Cost of Wind Energy Review, National Renewable Energy Laboratory
      So offshore is no where near as cheap as you claim and, again, you cannot choose when you need it - you cannot sell your 3am excess wind power to France if they don't need it either.
      You seem to also forget (I don't know if on purpose or out of ignorance) that Germany has to keep gas powerplants operational to buffer the no-wind events of those turbines - so they are a very real inclusive cost to wind power generation.
      Wind always needs a fossil backup, gas cannot use a wind backup.

    • Niles Butler
      Niles Butler 2 months ago

      ​@user936 You are mixing apples and oranges, - I dont know if on purpose or out of ingorance.
      One thing is cost.
      Please aquaint yourself with the concept of : levelized lifetime cost of electricity....
      What does it cost to plan, build, finance, run, fuel, maintain and finally decomission a power plant, divided by what amount of electricity can it produce over its expected life cycle.
      I believe by your "capital cost/running cost" comment you dont understand/know that basic concept.
      Questions of storage and baseline production dont have anything to do with that.
      And at that one metric - at what overall price are we able to produce a standardized amount of electicity - nuclear fission power generation is horribly costly. The most expensive method in industrial use.
      The other thing is network viability.
      Matching use with production at any given time.
      In that : Sure, energy storage is an important topic.
      And baseline power generation will always be neccessary.
      But I never even mentioned that. ?
      Nor does it touch on my argument in any way?
      Whats supposed to be your logic here?
      Yes, output of fission pressure generators can be regulated. Inside some constructive limits (Chernobyl basically happened because the tested running it too low at

    • user936
      user936 2 months ago

      @Niles Butler I think you are confusing capital costs with operating costs. On top of this you are not considering that we can control the output from fission - we can plan to have X about of kWh over a period of time - not something that can be done with offshore.
      I think the idea of using hydrogen generation in lieu of the battery storage we cannot produce yet is by itself an interesting idea. But you need the ability to predict power output or have ludicrously immersive hydrogen storage facilities for the 9 days in a row it doesn't blow.

  • Dave Kiave
    Dave Kiave Month ago +1

    There should ANYWAY be a change, or a shift, of paradigm. The production of hydrogen should be performed at ALL possible levels, that is to say every household, every condo, every block should have their own hydrolisys through any possible renewable source. Moreover, there should be an analogue effort at national and even over-national level to improve hydrogen production and storage.
    Remember that an advantage of H is that you store any possible excess of electricity production in that form.

  • Wes Kaminski
    Wes Kaminski 2 months ago +1

    Simple fact, windmills aren’t green. Look at their cost/GHGs in making of them. These are typically also running only less then 6% of the time

  • Bill Thomas
    Bill Thomas Month ago +1

    Creating solar panels is incredibly damaging to the environment unfortunately. Geo thermal is one of the few true green solutions but is not used much.

  • Leslie Fish
    Leslie Fish 2 months ago

    The easiest and cleanest way to make hydrogen is electrolysis, which can be supplied with solar power. Now there's a containment system (resin, bound with carbon fiber, bound with fiberglass) that can hold hydrogen gas under sufficient pressure to feed an engine. The hydrogen can be fed directly into the engine, rather than using fuel cells.

  • Dan Poole
    Dan Poole Month ago

    Hydrogen might make sense for air travel, but a sensible corrolary to the chicken-and-egg problem would be to reduce air travel. This would reduce the intense demand for both fuel and aluminum, freeing up supply of aluminum for other, better uses, while reducing greenhouse gas emissions.

  • TheJourneyingEngineer
    TheJourneyingEngineer 2 months ago

    Thing is, the renewable energy sources are still fossil fuel consumers. Practically all materials used to build those facilities rely on fossil fuel powered production. (Not to mention the recycling problem solar panels and wind turbines have) So I disagree in calling it Green Hydrogen.

  • Ricardo Oviedo
    Ricardo Oviedo 7 days ago +1

    You forgot to talk about the elephant in the Hydrogen room: storage and distribution. How do you efficiently create a distribution network that requires 3 times the volume for the same amount of energy? Who's gonna paid for it? Hydrogen is very difficult to contain, so building pipelines for it is a pie in the sky.

  • R Cosworth
    R Cosworth 9 days ago

    I do think that hydrogen is a way for some industries to use it as a source of energy. You did not remark in this video about Red Hydrogen that the Japanese have been working on. This may be the best way of producing clean Hydrogen for heavy industries and some forms of transportation.

  • David Edington
    David Edington 6 months ago +21

    The major difficulty, with sole reliance on renewables, is balancing supply with demand. In countries with large amounts of renewables there can be periods when supply outstrips demand (or overloads local network capability) and during these periods it would make sense to use that excess to create green Hydrogen. There is a project in Scotland at one of the biggest wind farms to build an electrolyser with the H2 being used to fuel buses (I think).
    As ever a wide range of energy options will be required and H2 will play its part in one form or another.

    • B
      B Month ago

      @lokensga no you need green hydrogen anyway. A) to replace gas and B) for steel plants.

    • lokensga
      lokensga Month ago

      True for now, but as the price of Powerwalls (generically) decreases, they will replace green hydrogen as a balancer of supply and demand.

    • Dan
      Dan  2 months ago +2

      ...yepp.... you're right...

    • KaosKronosTyche
      KaosKronosTyche 2 months ago

      Sorry, no. The major problem with "renewables" is the lack of energy density. Unless you can recreate the windmill farm using the energy from the windmill farm then you are stuck using fossil fuels. You cannot smelt steel or create Portland cement from the energy of a wind farm. End of story. Everything else is a LIE

    • Open your eyes
      Open your eyes 2 months ago +2

      You’re smarter than the average bear 🐻

  • Roman Rajab
    Roman Rajab 2 days ago

    I think this hype is there for a reason. I believe in the possibility to use it as a storage mechanism of a super cheap renewable (maybe mostly solar) energy. Even with a loss of 60% efficiency upon conversion back to electricity - it can still make sense given the abundance of renewables. And I believe it can be the core of Europe`s freedom from putin`s and other authoritarian, terrorist regime`s influences

  • Kuhluh
    Kuhluh 6 days ago

    What imo is Hydrogen's biggest upside is that you can refuel/recharge it a lot faster than batteries.

  • Ken Bellchambers
    Ken Bellchambers Month ago +2

    If we had continuous feed hydrogen fuel cells that were small and reliable, electrolysis could be a good way to use home produced solar energy when the batteries are full and the system floating. There is a massive amount of this energy being wasted. Also, by electronically vibrating the water used for electrolysis at the proper frequency, the water molecule breaks apart much more readily. This step makes the process very many times more efficient.

    • B
      B Month ago

      We could also pump it into dry regions of the world. Cool down green houses and water the plants and animals.

    • B
      B Month ago

      Best idea so far.

  • Penguin King
    Penguin King 2 months ago +2

    There is still the other green energy: nuclear. Massive electricity on demand, zero greenhouse gas. When you look at the situation realistically, nuclear is the clear solution.

  • hamsterdangler
    hamsterdangler 2 months ago

    Surely if hydrogen was to be used to power road vehicles, instead of the cost and losses caused by transporting it to fuel stations by truck, could the stations not just have a heavy duty electricity connection so the hydrogen could be generated and stored in situ. That seems to make more sense to me.

  • Christopher K
    Christopher K 2 months ago +1

    Is it possible to do the electrolysis (with water to get hydrogen) in the car? Then, the byproduct of hydrogen can be stored in tanks in the car. When the car is parked, it can be plugged into an outlet to get electricity to continue the electrolysis and replenish the tanks in the car with hydrogen.

  • Ciprian Mogosanu
    Ciprian Mogosanu Month ago +1

    In my thesis for the master degree we follow a brand new way of production of hydrogen ,with about the same classical technology of producing grey hydrogen,only one this time we are using ethanol (pure alcohol) to make hydrogen
    Does it produce CO2? Of course it does but stopping global warming does not mean to not have CO2,means to not add more CO2 in the atmosphere.
    Alcohol is produced from plants,plants gather CO2 from the atmosphere,so only the same CO2 that existed already in the atmosphere is used

  • Dunc777
    Dunc777 9 days ago

    I’m conflicted. I still have no idea wether hydrogen is the way forward having watched this. I think it might fill a gap between now and lighter batteries and clean ways of charging them. But doubt it’ll be long before international flights become restricted by our global mafia so perhaps aircraft fuel choice is an anathema..

  • Brian Mathew
    Brian Mathew 2 months ago

    Turning hydrogen into synthetic fuels such as gasoline or diesel with the addition of CO2 from the air is doable and if undertaken would allow conventional internal combustion engine powered vehicles to become green immediately. This seems to me to be a priority if we are to attempt to stop global warming in its tracks.

  • Douglas Firth
    Douglas Firth Month ago +1

    The objectives should be focused on green hydrogen, meaning a collaboration of science and motivation by governments rewarding and business profiting with tax incentives which will prove profitable as expansion increases demand.. The lower cost of production will be symbiotic.

  • Miguel Amezcua
    Miguel Amezcua 3 days ago

    Hydrogen as a fuel is excellent, but it obviously presents great challenges in obtaining it. The Australians have already found systems to carry out the separation of water into H2 and O2 quite efficient in the order of 90%, and better methods and more practical systems will continue to be found for the objective.
    On the other hand, deep geothermal energy is a 100% ecological source and is practically inexhaustible, which will undoubtedly contribute to detoxifying our planet. In addition, the reactors that generate energy by fusion will soon be sources of clean energy from which green hydrogen can be obtained.
    Solar panels and windmills, in my opinion, are not practical, due to the large area they require for their generation and the intermittency of their energy production, and little by little their use will be reduced, once the energy by fusion and deep geothermal are developed at an industrial level.

  • Craig Petroskey
    Craig Petroskey 4 hours ago

    I know that if you combine Hydrogen molecules with Oxygen molecules and input energy to cause combustion you create heat and water vapor. However, water vapor is the most significant greenhouse gas in the atmosphere, more so than carbon dioxide or methane, considering the concentration of free water vapor in the atmosphere.

  • Pranav Vaidik Dhulipala
    Pranav Vaidik Dhulipala 9 months ago +9

    Depends. We will have to produce hydrogen from renewable energy in places where electricity transmission is a challenge. For example, you can do this in places like Saudi Arabia, where there is a lot of sunshine, and they don't know what to do with the excess solar energy due to the duck curve. Other examples could be desert places and offshore windmills

    • glynnec2008
      glynnec2008 5 months ago

      If electricity transmission (via powerlines) is expensive, why would hydrogen transmission (via pipelines) be cheaper?
      The Saudis don't even bother to transport methane via pipelines, they just flare it in the oil field.
      And methane pipelines are much less costly than hydrogen pipelines.

    • Salamander
      Salamander 7 months ago

      Problem in Saudi and other desert regions is that water is a scarce commodity so they have the solar power but nothing to make hydrogen with!

  • mystray
    mystray 2 months ago +1

    "It's predicted that Hydrogen could supply up to 20% of our energy needs..."
    No it won't. Hydrogen is not an energy source but a storage medium.

  • Scott Johnson
    Scott Johnson 27 days ago

    So, as I understand, a hydrogen car, in this case, is really an electric car. Hydrogen is just used to make the electricity. What about cars that actually ran on hydrogen? There have been a few through history.

  • Henry Nera 4
    Henry Nera 4 Month ago +1

    hydrogen will help transition the “dirtier” industries into a more greener source of power but not a silver bullet to solving our energy and climate change problems. Nor does EV will be a silver bullet solution as well. I think the hydrogen economy and EV industry will co-exist for now to provide a better future for humanity. However, once we solve the hydrogen generation issue, hydrogen will definitely overtake as the better energy source alternative.

  • JustRaiderJohn
    JustRaiderJohn 2 months ago

    Yes, free radical hydrogen is the most common element in the known universe, but as you can see it's not a free radical on Earth and the explanation in this video tells the tale and does it well.

  • Allen Widdows
    Allen Widdows 6 days ago

    One thing that most people miss is that the combustion of hydrogen in air produces water. The problem with water is that it is also a very efficient greenhouse gas; this is demonstrated by how warm a cloudy night is compared to a clear night at the same location and at the same time of year. Increase in water exhaust will also raise the humidity in certain area, making these places even more uncomfortable in the summer. As this video shows, when it comes to energy to operate our society, there is no free ride or magic bullet.

  • Stuart Hirsch
    Stuart Hirsch 11 hours ago

    Hydrocarbons are hard to beat for energy storage and practical use. They store a tremendous amount of energy in a relatively small and lightweight package at ambient or moderate temperatures.. Pure hydrogen isn't practical or economical for most energy use. However it can be used and combined with carbon captured from the air and recycled to form methane, methanol, propane, kerosene ( for diesel fuel). This would recycle carbon continuously providing clean hydrocarbon energy while not changing our basic infrastructure or currently used technology. Methane and propane also make ideal fuel cell fuels.

  • Tom Bombadil
    Tom Bombadil 2 months ago +107

    This was like jumping into “renewables” without calculating the long term effects of the extraction of rare metals, recycling of batteries, and efficiency of said tech, etc..which can lead to among other things to the energy crises like we have today.

    • Waqas Ahmed
      Waqas Ahmed 10 days ago

      @SUPERj 850 Was going to say the same. Around half our energy is produced by gas in the UK

    • B
      B Month ago


    • D Circle
      D Circle Month ago +1

      @SUPERj 850 The weather in continental Europe is much less diverse than you might think. And even if it were to average out across the whole of the EU, this doesn't help stabilise regional grids. High wind in southern France do nothing to balance out a lack of wind in northern Germany.
      If you honestly believe the weather to be more predictable than occasional maintenance shutdowns, then I'm afraid there's no reasoning with you.
      Why do you think has grid volatility in Germany exploded with their move to renewables if - as you seem to believe - unscheduled maintenance shutdowns on a fossil grid are so much more common?
      Unfortunately, our AC power grids rely on us matching power production and power consumption pretty much instantaneously. A fossil power plant going down for (even unscheduled) maintenance will still produce power for several minutes simply due to the inertia of the giant moving turbines. This provides ample opportunity to spin up one or more reserve power plants to prevent grid outages.
      The same cannot be said for neither wind nor solar, both wildly fluctuate their outputs with zero inertia. This results in the need for frequent interventions to prevent outages and these kind of interventions need to be quick. So far, only gas power plants are able to spin up fast enough to do this. Subsequently, the more renewables are connected to the grid, the more gas power plants need to be kept on standby to prevent outages, thus increasing the reliance on fossil fuels rather than alleviating it.
      Lastly, this frequent spinning up and shutting down of gas peaker plants is much more inefficient than running a conventional fossil fuel plant permanently.
      Of course nobody ever factors that into their calculations when estimating the carbon impact of renewables...
      Until there is enough grid storage installed to provide the same grid stabilisation services, expanding renewable production will always increase reliance on gas.

    • SUPERj 850
      SUPERj 850 Month ago

      @D Circle that would be true on a tiny grid, but the european power grid covers a vast geographical area with all kinds of differing weather conditions, thus the power output tends to average out and be pretty stable.
      Also weather is fairly predictable, unlike unscheduled maintainance shutdowns, which are much more problematic on a fossil based grid because it relies on few massive powerplants. And they happen more often than you'd think.

    • D Circle
      D Circle Month ago +2

      @SUPERj 850 Actually, the reason Europe is so reliant on gas now is BECAUSE of renewables. Due to their high volatility and the current lack of grid storage, the more renewables you have the more gas peaker plants you need to stabilise the grid.

  • Paul
    Paul Month ago

    What is being missed by most with this hydrogen myth is that it takes an *enormous* amount of energy to produce hydrogen... so we're in the same loop that we're in with electric vehicles... Electric vehicles certainly are not burning fossil fuels like the old ICE cars, but the SAME fossil fuels are still being burnt to produce the electricity that these cars need. Can you not see the absurdity of this?
    Add the additional mining/manufacturing/construction/transportation/etc costs and it just gets rediculous...

  • Wol747
    Wol747 9 months ago +7

    Glad I watched to the end, because I was going to jump in with all the “cons” that came later on!
    It needs a paradigm shift: rather than viewing hydrogen from the “fuel” viewpoint, rather look upon it a a “storage” commodity. The same, but not the same.
    Use H2 where batteries just won’t do (aviation, probably bulk freight) yes, but it can also be used for supplying rapid grid balancing. Fully green H2 can be produced at times of renewable energy overproduction close to its storage and generation stations and the inefficiencies don’t include transportation and retail delivery infrastructure and in any case aren’t that important if the electricity is “surplus”.

    • Randy Bobandy
      Randy Bobandy 3 months ago

      Except surplus isn't a reality anytime soon.

  • Sunrise Jak
    Sunrise Jak 12 hours ago

    Hydrogen allows anyone anywhere to generate their own energy prehaps assisted through renewable energy for the hydrogen extraction. This would allow an independence from monopolies such as the dominant oil industry and rare earth minerals holders. Hydrogen thus presents good opportunities for countries to take responsibility for their own energy needs/destiny and not be at the mercy of possible adversaries or bad actors. Hydrogen has the potential to be a liberator and equalizer.

  • Mahesh
    Mahesh 2 months ago +1

    Best way forward will be to build large power plants based on hydrogen fuel cells and power everything else with that energy. Exception being , large trucks etc but technology will find a way if we’re sincere about it.

    • echmech
      echmech 2 months ago

      You must have missed the part about hydrogen being an energy carrier, not an energy producer. Back to the drawing board you go.

  • honotiro
    honotiro Month ago

    Wish this also mentioned the pink hydrogen derived from nuclear. With next-gen small modular reactors, which are not reliant on fussion, but fission instead, this typo of hydrogen can be produced cheaply as a waste product without compromising on safety. The fact that Germany is not even considering nuclear as part of its energy mix, when it's the most efficient (and increasingly one of the safest) method of energy production is baffling to me.

  • Javier Hernandes
    Javier Hernandes 2 months ago +1

    One thing we have to remember is that hydrogen do not explode instead it implode and this is very implodtant because not combustion engine thing can take advantage of this. Remember two gases becoming one water molecule it is called fusion

  • Swede McGuire
    Swede McGuire 2 months ago +1

    Hydrogen has very large physical risks vs. other fuels.
    Hydrogen is exceptionally difficult to contain. Gaskets don't stop hydrogen leaks.. rather perfectly smooth 'lapped' metal to metal contact is the most reliable containment methodology, and surfaces of course tend to have imperfections or get marred. The hydrogen atom is the smallest of all atoms, it can make it's way through exceptionally small gaps or channels. Also, hydrogen has a very wide flammability index, it will burn in a vast range of air to fuel ratios vs. other fuels. And importantly, once hydrogen does ignite, it's flames are not visible to the eye! This makes fighting hydrogen fires extremely dangerous for responders, and presents clear risks to anyone in proximity to the fire when it breaks out.

  • AssosVideo
    AssosVideo 7 days ago

    One thing about Hydrogen that is not mentioned is its energy density compared to lithium-ion batteries, yes with today's technology close to %50 of energy is lost from electrolysis to being in the car but for the same weight liquid Hydrogen has 10 times the energy mass to lithium-ion batteries having the same weight

  • Patrick Mushimba
    Patrick Mushimba 2 months ago

    Can green hydrogen eventually also replace the nuclear and coal plants for mass electricity production to power the various industries and cities around the globe?

  • RidgyULRASite
    RidgyULRASite 2 months ago

    If for green hydrogen you need electricity from solar panels and eolic energy, we are already in a problem (do we have enough energyfrom those or do we substitute our current electricity needs to fossil fuels and be able to produce h2?). In addition, one can also think about fact that H2 requires water, being an scarce resource year after year. Interesting, but with many challenges ahead.

  • swissguyflying
    swissguyflying 9 months ago +203

    Overall, I think everyone needs to understand that the energy transition will not happen with ONLY one renewable energy, or green energy storage. Green hydrogen, green ammonia, fuel cells and what not will all be part of this transition, just like wind, solar and other renewable energy sources.

    • Luca Della Sciucca
      Luca Della Sciucca Month ago

      @B irrelevant

    • B
      B Month ago

      @Paul Sacco no

    • B
      B Month ago

      @Luca Della Sciucca still needed for steel etc

    • Christopher Treacy
      Christopher Treacy 2 months ago

      @swissguyflying yes well said ....no magic bullet only an amalgamation of all different types

    • John Mark Agosta
      John Mark Agosta 2 months ago +1

      Ammonia has the no-carbon advantages of hydrogen as an energy carrier, but already has a vast mature distribution and storage infrastructure for it's use in agriculture as a fertilizer. It could be both the energy and nitrogen fertilizer source for agriculture without need for the investments at the level of replacing fossil fuels with hydrogen.

  • Carl Snorge
    Carl Snorge Month ago

    Having said all of that below, the one thing I don't ever approve of are those individuals that insist that we stick with the current system and wilfully attack clean energy processes because they think scientific outcome of experimentation, result and observation leading to conclusion is a political issue. The result of scientific observation is empirical not emotional.