The truth about hydrogen

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  • čas přidán 28. 03. 2024
  • Some say it's the fuel of the future that will soon power large parts of our economies. Others say it's just a hoax propagated by the oil and gas industry. But either way, EVERYONE in the energy world is talking about hydrogen. Can it really help us get to net zero?
    Reporter: Malte Rohwer-Kahlmann
    Camera: Christian Caurla
    Video Editor: David Jacobi
    Supervising Editor: Kiyo Dörrer
    We're destroying our environment at an alarming rate. But it doesn't need to be this way. Our new channel Planet A explores the shift towards an eco-friendly world - and challenges our ideas about what dealing with climate change means. We look at the big and the small: What can we do and how the system needs to change. Every Friday we'll take a truly global look at how to get us out of this mess.
    #PlanetA #Hydrogen #GreenHydrogen
    Global Hydrogen Review 2021 from the International Energy Agency: iea.blob.core.windows.net/ass...
    Powering ships with fuel cells: theicct.org/wp-content/upload...
    Hydrogen-powered aircraft: theicct.org/wp-content/upload...
    Study on blue hydrogen's emissions: onlinelibrary.wiley.com/doi/f...
    Report on Shell's blue hydrogen plant: www.globalwitness.org/en/camp...
    Special thanks to:
    Noel Tomnay, Global Head of Hydrogen Consulting at Wood Mackenzie, for a background interview.
    Chapters:
    00:00 Intro
    00:37 What is hydrogen?
    01:34 How can we use the stuff?
    04:41 The hydrogen rainbow
    08:49 No silver bullet
    10:47 What's next for hydrogen?

Komentáře • 7K

  • @DWPlanetA
    @DWPlanetA  Před 2 lety +310

    What do you make of the hydrogen hype?

    • @_ao101
      @_ao101 Před 2 lety +52

      Hydrogen is a Great opportunity. You should make a Video about Algae aswell. They can produce Energy that could be stores with Hydrogen aswell ⚡

    • @anyonehome8609
      @anyonehome8609 Před 2 lety +12

      🎉🎉🎉🎉🎉finally🎉🎉🎉🎉🎉

    • @thesilentone4024
      @thesilentone4024 Před 2 lety +22

      Probably over hyped.
      Thoughts on using geothermal to make energy and sense its making steam anyway why not also produce hydrogen too.

    • @DWPlanetA
      @DWPlanetA  Před 2 lety +33

      It's your lucky day, Julian! We have a few videos that highlight the benefits of algae. You can watch them in the links below:
      Why the world needs more algae, not less: czcams.com/video/bcyIbq3NhI0/video.html
      How to make "plastic" out of algae and mushrooms: czcams.com/video/KVOG-fG5bD4/video.html

    • @DWPlanetA
      @DWPlanetA  Před 2 lety +31

      We have also done a video on Geothermal energy before. We've just dug it up from our archives for you: czcams.com/video/c7dy0hUZ9xI/video.html

  • @tommash.r.2606
    @tommash.r.2606 Před 2 lety +1995

    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!

    • @2nd3rd1st
      @2nd3rd1st Před 2 lety +125

      The misconception is that Hydrogen is an energy source.

    • @la7dfa
      @la7dfa Před 2 lety +43

      Yes in transport that can not use batteries, it makes sense. The power consumption from production and use of Hydrogen is probably 3x. But for e.g. shipping and some transport it makes sense.

    • @raunakshahi8485
      @raunakshahi8485 Před 2 lety +22

      You worded that wrong but I get what you mean, might want to edit that

    • @seb_industries
      @seb_industries Před 2 lety +25

      Though the 20% percent loss along the way is a big lie. The number is much much larger. Take the alternating current for example - even the way of us transporting electricity has losses. It's called alternating, because the current is alternating, which means, there are additional losses even when we don't even power anything with it.

    • @sschmachtel8963
      @sschmachtel8963 Před 2 lety +29

      @@brainthesizeofplanet Yes. And I fear that many people are not aware of how huge "huge amount of lithium need battery storage" actually is. Apart from the fact that you would charge batteries only once a year if you'd want to use it instead of hydrogen to store energy gained in summer for its use in winter. This is clearly a purpose for which hydrogen should shine ... even with a lot of energy lost on the way.
      As it seems at least to me there is no real good alternatives for this single purpose except hydrogen
      In many other cases there is actually a way to use electric energy directly also for chemical reactions, yet this is a completely different process than chemical reactions not involving electrochemistry .... you need electrode surface areas as opposed to reaction volume. Many metals actually are produced electrochemically, yet the amount of steel that is produced world wide is at a completely different order of magnitude.
      And another story is the need of very high temperature which is much more difficult to acchieve with electricity than with burning gases or fuel.
      Hydrogen is tricky in many ways so what I also wondered is if there is actually another way to store chemical energy??? That'll better be some kind of flow through reactor, as batteries have the very big disadvantage that they contain the energy material, whereas fuel cells and up to a certain level redox flow cells and alike store mostly energy carriers separated from their reactors. Redox flow cells though also store electrolyte which has a low solubility of products and has thus a lot of dead volume

  • @Brurgh
    @Brurgh Před 2 lety +454

    I saw that in South Australia they are looking into using the excess solar energy produced to create hydrogen. if done like this is can be a very good alternative, and a very good export for very sunny countries.

    • @rendercool
      @rendercool Před 2 lety +34

      Just using the excess solar for hydrogen is unrealistic. The hydrogen electrolyzers have to have a way higher utilization rate in order to produce hydrogen at a reasonable cost

    • @SaveMoneySavethePlanet
      @SaveMoneySavethePlanet Před 2 lety +31

      Yea this is the way to do it. Setting up solar just to create hydrogen is losing a lot in the electrolyzation process (about 40%). But using solar normally and only powering an electrolyzed with the EXCESS energy produced is the best of both worlds.

    • @MichaelTavares
      @MichaelTavares Před 2 lety +37

      @@rendercool there will be situations where lots of renewable electricity can be produced but there aren’t consumers nearby. Like Australia. This is the opportunity to develop Green hydrogen. Where there is demand near production the electricity should just go to the grid

    • @Shs21
      @Shs21 Před 2 lety +10

      @@MichaelTavares It seems you did not even read Reinder's comment.

    • @FIGHTTHECABLE
      @FIGHTTHECABLE Před 2 lety +13

      Transporting hydrogen is also not efficient. Either cool or compress it like crazy.

  • @AnkitPorwal91
    @AnkitPorwal91 Před rokem +45

    Super simplified explanation of what hydrogen strategy is all about. Such videos which explain more and dont pass a judgement are well appreciated

    • @JohnSmith-pn2vl
      @JohnSmith-pn2vl Před rokem +1

      yes, hjydrogen never has or ever will make any sense

    • @alone-tt8dg6ic6f
      @alone-tt8dg6ic6f Před 11 měsíci

      The US is racist country. Russia Russia needs 0.05 nm chip from China and India. China and India may provide supper carriers to Russia. NK may provide 20 million soldiers.

    • @the_grand_tourer
      @the_grand_tourer Před měsícem +1

      @@JohnSmith-pn2vl And there we have it, a person who can't even type (or think?) clearly passing judgement.

  • @ryancorkery5831
    @ryancorkery5831 Před 7 měsíci +15

    This is a good dissection of the hydrogen issue. One criticism is that you didn’t include nuclear as part of the Green Hydrogen solution

    • @harryadam1671
      @harryadam1671 Před měsícem +3

      Nuclear is far too expensive, far too slow to produce and has a bad laegacy issue.

    • @trifio5242
      @trifio5242 Před 12 dny +1

      @@harryadam1671 but it is literally the only thing that works )))

    • @harryadam1671
      @harryadam1671 Před 12 dny

      And it literally isn't.@@trifio5242

  • @mikekelly5869
    @mikekelly5869 Před 2 lety +313

    This is surprisingly well balanced. CZcams 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.

    • @roybaty4785
      @roybaty4785 Před rokem

      Hydrogen unlike fossil fuel requires as much energy to produce as it provides, so it isn’t as solution for so-called global warming.

    • @nicktreleaven4119
      @nicktreleaven4119 Před rokem +10

      I find the 'Just have a think' channel to be pretty well balanced too.

    • @Alorio-Gori
      @Alorio-Gori Před rokem +2

      True 👏

    • @fr89k
      @fr89k Před rokem +6

      This is German public broadcasting. They are obligated to give a balanced view. I wonder why the videos don't have the notification bar below it, telling that it is a public broadcaster.

    • @haraldschnauzer223
      @haraldschnauzer223 Před rokem +4

      lol, he makes it seem like electric cars are unproblematic. up your critical thinking.

  • @cjcormier26
    @cjcormier26 Před rokem +286

    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.

    • @cesco1990
      @cesco1990 Před rokem +42

      For the last part, gas in your kitchen has smell added to it as well. So there are ways to solve certain 'issues'.

    • @MarkFisher_aka_Gatortrapper
      @MarkFisher_aka_Gatortrapper Před rokem

      @@cesco1990 “Natural” gas is NOT hydrogen.

    • @richardtrygg7454
      @richardtrygg7454 Před rokem +26

      In fact, you will have to add wall thickness to all piping as the atom will escape through the material. All piping we use for hydrogen is 316L. Also if temperatures differs to much
      the hydrogen will accumulate in sharp edges and cause brittleness. Will be expensive to design these systems. Codes for hydrogen systems are just a few years old now. A new career opportunity for piping engineers?

    • @arvidsfar1580
      @arvidsfar1580 Před rokem +17

      Even with perfect welding, hydrogen molecules will leak through intact pipes or storage container walls at elevated rates, because of their small diameter.

    • @cesco1990
      @cesco1990 Před rokem +18

      @@arvidsfar1580 seems like an excellent opportunity for new companies to develop these kinds of structures and metals. All hail true capitalism. And not modern-day fascism.

  • @pspaulstewartinterviewinspires

    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.

    • @mjodr
      @mjodr Před měsícem

      That ticking time bomb she laid was extremely annoying. There was barely any point to it at all. Maybe to secure her job, that's it.

    • @azjeep26
      @azjeep26 Před 16 dny

      nuclear power with battery done thanks have a great day!

  • @markputnam6371
    @markputnam6371 Před rokem +63

    Very interesting subject. Green Hydrogen is something that here in NZ we should be making by the bucket load since the electrical generation industry is either hydro/wind or geothermal. Still have a number of coal and gas fired industrial sites(mostly Fonterra) due to their remote locations but only two gas power stations for residential output. New Geothermal sites are coming on line all the time but our biggest problem is lack of investment, seems a missed opportunity to me.

    • @JohnSmith-pn2vl
      @JohnSmith-pn2vl Před rokem +3

      the thing is hydrogen has 0 upsides and was a fairytale to begin with, use mthane for example.
      you can make that and that has upsides like it actualy has storage capabliities, not like hydrogen which is terrible in every aspect.
      but at the end of the day battereis is where its at, they are clean, consume no resources, can infnitely be recycled, and first and foremost are insanely efficient, we are not just 80% efficient for the wholle chain but way over 90% already with battery electric cars.
      this can be applied to everything else as well.
      efficiency is what determines everything, power, safety,ecnomy, ecology, adoption, infrastructure etc.
      batteries are unbeatable period

    • @hrushikeshavachat900
      @hrushikeshavachat900 Před rokem +1

      ​@@JohnSmith-pn2vl Mathane though lower still have Carbon and is also worst as a greenhouse gas than CO2 to begin with. However, it can used at places when methane is obtained as a by-product. This methane can be burned and is actually better than burning fossil fuels including natural gas. Also, Hydrogen won't work on individual levels. However, when talk about industries where green hydrogen can be obtained on-site, it is a completely different ball game. For example, in steel industry it can be produced in-house using electrolysis of water and them used to replace the fossils fuels used to power the furnaces. Same is the case w.r.t the long haul transpiration industry, where batteries cannot be feasible due to weight,range issue. On the other side water can be easily filled andstired to produce on board hydrogen which can be used to drive the propellers.😊

    • @teamalpha7423
      @teamalpha7423 Před 11 měsíci

      @@JohnSmith-pn2vl I would like to also add that it's much harder to decarbonise the aviation and steel sector with electric, it just needs to be a blended solution?

    • @Syulang-nt4kj
      @Syulang-nt4kj Před 7 měsíci +2

      NZs grid is really good. Agree there is an oppotunity there. It's absurd that in Australia we aren't aggressively pushing a switch to concentrated solar thermal power. Photovolatics are good short term, but present a long term end-of-life recycling nightmare that CST solar just doesn't have (since the heliostats are just plain old mirrors). With that and molten salt sotrage, plus east coast hydro we could easily power our home continent and export clean electricity either as H2 or via direct cable, given our proximity to Asia. We could build our heliostats and get rid of our coal and gas extractive industries completely.

    • @markputnam6371
      @markputnam6371 Před 7 měsíci +1

      @@Syulang-nt4kj And there is the problem. Oil/Gas industry has its fingers in so many pies, worldwide let alone in Oz.

  • @TWCHHK
    @TWCHHK Před 2 lety +205

    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.

    • @booobtooober
      @booobtooober Před 2 lety +2

      The thing is, "green hydrogen" needs 3X to 5X more electricity (solar panels, wind turbines) up front to deliver the same energy at the end point.

    • @TWCHHK
      @TWCHHK Před 2 lety +22

      @@booobtooober There are massive developments being done in terms of electrolysis efficiency. Nowadays, you can have efficiencies of up to 80% using a water vapor electrolysor. The idea is still to have the green hydrogen plants located in regions that have plenty of sun, wind or geothermals. Hydrogen can store that energy, and be delivered according to need later on. Pure renewables aren't able to do that right now. Also, don't forget that hydrogen is already being used in plenty of Heavy Industries which need to decarbonize as well, so I don't see why green hydrogen wasn't a viable alternative to these industries, since the technology of electrolysis is well known a d hydrogen is being used widely...

    • @echelonrank3927
      @echelonrank3927 Před 2 lety +2

      transition to poverty

    • @TWCHHK
      @TWCHHK Před 2 lety +5

      @@echelonrank3927 and where do you get this from? Gotta have somr faith. New technologies bring new opportunities for employment, even in the poorer regions of this world (if done right)

    • @lucadellasciucca967
      @lucadellasciucca967 Před 2 lety +5

      ​@@TWCHHK Don t forget that the good old solar and wind energy together with battery technology is getting better way faster then hydrogen tech.
      Why use electricity to produce hydrogen to power a car when it costs way less to directly use electricity to power it?
      Also, what are you saying renuables can t do right now?

  • @edgarescandar3944
    @edgarescandar3944 Před rokem +18

    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.

    • @jadenspires1891
      @jadenspires1891 Před rokem

      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

    • @nilesbutler8638
      @nilesbutler8638 Před rokem +2

      Huh?
      Doesnt make a lot of sense, no. Not to me in this shortness anyway.
      You´d argue the small amounts of water emitted in the fuel cell process - out of hydrogen that has originally been made out of water or natural gas - should then be collected and somehow brought where water is scarce?
      Just transporting water where it is needes seems much, much more straightforward. And if done by pipeline considerably cheaper, more efficient and less leakage.

    • @oliverthomas8142
      @oliverthomas8142 Před rokem

      That's nice.

  • @marktwain368
    @marktwain368 Před rokem +30

    As always, the DW Team does a fine job of dissecting the issues, showing alternative technologies, and grounding it all in the real world of costs of production. I see the hydrogen future for humanity and this excellent presentation gives us a solid viewpoint for why that may be so. Zehr gut!

    • @mobyrichards8625
      @mobyrichards8625 Před 2 měsíci

      Some might say. God said the end is near.
      Maybe 2036;why try so haảd. For what

  • @johnwisdom651
    @johnwisdom651 Před rokem +6

    Excellent analysis!! Innovation is a continuous process, some day we will discover the truths and solutions around it

    • @petebusch9069
      @petebusch9069 Před rokem +1

      You won't find those truths in video's like this that are designed to push the electric car market. Please wake up and realize how the real world functions before giving out praise. There is no need to pick a side and the only important thing is the search for truth which you will not find on the internet.

    • @johnwisdom651
      @johnwisdom651 Před rokem

      @@petebusch9069 You are right!! But the progress is gradual. Internet is a medium. Different people access it for different reasons.

  • @59nesdnarFrangaR
    @59nesdnarFrangaR Před 2 lety +192

    Hydrogen storage is a big issue. If it's pressurezed, chilled or even liquified it still takes up so much space, leaks, embrittles containing vessels and costs so much to convert. Reacting hydrogen together with nitrogen in a catalytic chamber produces Ammonia, that solves much of the issues of containment since it can be stored at much lower pressures and higher temperatures with conversion efficiencies higher than those of LH2 and much higher energy densities. It can even be used directly in fuel cells just like H2. Thanks for the video, I would love to see your take on this.

    • @walli6388
      @walli6388 Před 2 lety +6

      There is also a pretty good solution with an organic contaminant molecule. Makes it into a kind of jelly. Pretty easy to get back again.

    • @iIiWARHEADiIi
      @iIiWARHEADiIi Před 2 lety +20

      NH3 is hazardous gas. If tank with H2 cracks nothing would happen. But if NH3 will leak, you will need to have make avacuation of nearest regions. And if this would happen on crowded region in city center or closed area, this would be catastrophic. Also NH3 is highly corrosive. Also NH3 dnergetically 25% less energy dens than H2 due to inert N2. If some how decompose CO2 and H2O to 3O, and H and combine to CH4. Like 2CO2+4H2O = 2CH4 + 4O2. And you get zero emission at the end, because you also produce O2 from CO2.
      Also NASA and some companies actively produce C2H5OH ethanole from CO2, burning it it is also zero emission.

    • @Neojhun
      @Neojhun Před 2 lety +11

      Yep the ammonia method is very promising interms of functionality. But safety risk of that on a gigantic scale is kind of horrific.

    • @youngchemist
      @youngchemist Před 2 lety

      How about BH3 instead of NH3?

    • @ph5915
      @ph5915 Před 2 lety

      I also saw a video about combining H with ammonia, and the benefits seem great!

  • @mcd3379
    @mcd3379 Před 2 lety +4

    Great video - obviously there are many challenges, but from an application perspective alone, especially when you think about research for one it's most common applications - i.e cars - it's low energy density is a problem.

  • @amarnamarpan
    @amarnamarpan Před rokem +3

    I think discovering an efficient and safe fusion reactor for energy would be the game changer in the coming years. And everything would run on electricity with minimal carbon footprint.

  • @pkools
    @pkools Před rokem +17

    Great video. I think it gives a balanced view of the issues to be considered. The energy transition is a great challenge - we consume a lot of energy in the world and cleaning it up needs us to get to understand and appropriately use all good options.

    • @stevem8318
      @stevem8318 Před rokem

      You don't understand the politics. Nuclear is a wonderful, cheap, safe energy source. Read up on thorium power plants.

    • @stevem8318
      @stevem8318 Před rokem

      Anyone who disagrees hasn't looked into it. It is not used much in the world is because those at the top of the power ...

    • @stevem8318
      @stevem8318 Před rokem

      to c o n t r o l us, do ...

    • @stevem8318
      @stevem8318 Před rokem

      NOT want the ...

    • @stevem8318
      @stevem8318 Před rokem

      human population to thrive.

  • @Tombombadillo999
    @Tombombadillo999 Před rokem +106

    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.

    • @xiaoka
      @xiaoka Před rokem +3

      "Rare metals" aren't actually that rare. And newer batteries are using little or no cobalt or nickel. Battery EVs are much more efficient than hydrocarbons and batteries are very recyclable.

    • @superj8502
      @superj8502 Před rokem +5

      Actually the current energy crisis in europe is caused by natural gas and would (and should) be solved by renewables.

    • @petejung3122
      @petejung3122 Před rokem +4

      @@superj8502 not this decade.

    • @superj8502
      @superj8502 Před rokem +2

      @@petejung3122 what do you mean?

    • @petejung3122
      @petejung3122 Před rokem

      @@superj8502 we will not get there the next 10 years.
      Technology of renewable energy is for now not sufficient.

  • @jimoday2078
    @jimoday2078 Před 2 lety +25

    The solutions we hear about will only work in conjunction with the one we almost never hear about: learning to get along using a LOT less energy.

    • @helenefalk500
      @helenefalk500 Před rokem +2

      Look at a map of Korea at night. North Korea is very dark and uses very little energy. South Korea is lit up like a Christmass tree. Where would you rather live ? North or South Korea ? Energy usage gives us our standard of living.

    • @52darcey
      @52darcey Před rokem

      Good luck with that one!

    • @charlesswoape9128
      @charlesswoape9128 Před rokem +4

      Everyone wants to help with climate change, but will not change any of their habits to do so

    • @kkdias9924
      @kkdias9924 Před rokem

      @@charlesswoape9128 agree. that s why i don't care anymore about climate change. this world and all the people can jump off a cliff

    • @randybobandy9828
      @randybobandy9828 Před rokem

      No thanks

  • @algobo
    @algobo Před 8 měsíci +1

    Thank you for this video, very informative!

  • @_d000v1
    @_d000v1 Před 3 měsíci

    Great content! Well, we nedd updates about this video. :)

    • @DWPlanetA
      @DWPlanetA  Před 3 měsíci +1

      Hey there! Glad you liked the video. We tackled hydrogen-powered trucks recently. You can find the video here 👉czcams.com/video/qiQcGdq66DI/video.html

  • @jnbfrancisco
    @jnbfrancisco Před rokem +4

    What ever happened to the steel tank hydrogen imbrittlement storage problem?

  • @Wol747
    @Wol747 Před 2 lety +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”.

  • @nichlasbach
    @nichlasbach Před rokem

    What a great channel, I needed this for my class project

  • @giselle2766
    @giselle2766 Před rokem +2

    We should move forward on any alternative energy projects at the same time and see which one(s) are the most effective and least damaging at an affordable price.

  • @frankpot4271
    @frankpot4271 Před 2 lety +12

    whenever i ask a certain chemist his opinion on hydrogen he always mentions ammonia being the more practical way to store energy, might be good to look into that

    • @jasonlewis460
      @jasonlewis460 Před 2 lety

      Hydrogen power is exponential. You want green Hydrogen. Just make a power plant run by Hydrogen or Nuclear. Problem solved

    • @mikekelly5869
      @mikekelly5869 Před 2 lety

      @@jasonlewis460 When do you start?

  • @illuminateyourmind
    @illuminateyourmind Před 2 lety +4

    Brilliant presentation of the topic. Keep it up!

    • @DWPlanetA
      @DWPlanetA  Před 2 lety +1

      Hopefully you've already hit that subscribe button so that you don't miss more content like this 🙂👍🏽 We release a video every Friday!

  • @Planet_Cents
    @Planet_Cents Před 4 měsíci +1

    We love the video! It’s a huge step in the right direction. We hope the video reaches as many people as possible, we would go ahead to add your video to one of our playlists to inspire climate solutions. -Team Planet Cents

  • @nishalall3510
    @nishalall3510 Před 2 měsíci +1

    Something to keep brainstorming on !!

  • @davidedington6470
    @davidedington6470 Před rokem +25

    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.

    • @openyoureyes3113
      @openyoureyes3113 Před rokem +2

      You’re smarter than the average bear 🐻

    • @kaoskronostyche9939
      @kaoskronostyche9939 Před rokem

      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

    • @Dan-fo9dk
      @Dan-fo9dk Před rokem +2

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

    • @lokensga
      @lokensga Před rokem

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

    • @user-zt4zr7eg6z
      @user-zt4zr7eg6z Před rokem

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

  • @armstrongjonathan5591
    @armstrongjonathan5591 Před rokem +46

    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.

    • @2112jonr
      @2112jonr Před rokem +5

      Possibly the most sensible, balanced reflection on both technologies I've yet read.

    • @kevroll99
      @kevroll99 Před rokem

      Never say never, I guarantee it will happen.

    • @ralphboardman7443
      @ralphboardman7443 Před rokem +2

      And ammonia, NH3 is a transport mechanism that could be exploited

    • @damienjambu1460
      @damienjambu1460 Před rokem +4

      NH3 is the future for shipping, it can be stored at approx -33deg centigrade an be use in existing diesel engines with some modification. Much less waste of existing materials.

    • @alustud
      @alustud Před rokem

      why would you use renowable energy instead of nuclear? wind energy kills between 140.000 - 500.000 birds per year in the usa, just use nuclear, don't need space, clean and very efficient, also really reliable, nuclear energy is demonized to the point people don't want it when it's the most eco friendly solution we have at the moment, way less carbon footprint than anything, and remember manufactering solar panels is really bad for the earth.

  • @gregorydessingue5625
    @gregorydessingue5625 Před 5 měsíci +2

    Would love to see discussion of engineering challenges regarding storing hydrogen safely for use in any of these applications

    • @ericchin739
      @ericchin739 Před 4 měsíci

      Beautiful question!!
      Currently, storing and transporting pure hydrogen is risky, costly, and inefficient.
      See, hydrogen atoms are SOOOO small that they can easily leak through almost any storage vessel in its gaseous state.
      This also goes for transportation.
      Currently, chemicals like Ammonia (NH3) are used as a "hydrogen carrier". Essentially, you can safely and cheaply store and transport Ammonia.
      If you take Ammonia and heat it up to around 1,600 degrees F - it will "crack" into Nitrogen and Hydrogen - then you can use the hydrogen
      But.... heating ANYTHING to 1,700 degrees is very energy intensive and has its own challenges.
      Those are the main issues with JUST storing and transporting the hydrogen.
      ....
      Okay, so you can liquefy the hydrogen just like LNG, yeah?
      Sure.... but that needs to be SUPER high pressure (dangerous) and crazy low temperatures (energy intensive).
      If you have any other questions, please let me know!

  • @019united
    @019united Před 10 měsíci +1

    Great analysis on this

  • @FatheredPuma81
    @FatheredPuma81 Před rokem +76

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

    • @ralphboardman7443
      @ralphboardman7443 Před rokem +4

      Its just that (leaving short. war induced prices out of it), expensive nuclear cant compete with cheap new renewables, unless the taxpayer pays a VERY generous subsidy

    • @FatheredPuma81
      @FatheredPuma81 Před rokem +7

      ​@@ralphboardman7443 However Nuclear is far far safer when it comes to reliability. A Nuclear plant isn't going to stop working because there's no sunlight or wind.
      It _might_ be possible to go all in on Renewables and use the excess energy to store Hydrogen for the worst case scenario. Otherwise your only option is to over expand your infrastructure and (unless you're a very large country or in the EU) cut a deal with your neighbors to collectively overbuild and supply each other in a crisis.

    • @ralphboardman7443
      @ralphboardman7443 Před rokem +2

      @@FatheredPuma81 Of course its debatable trade-offs, but generally, locally produced power is said to be more "reliable" than a large, single point of failure vulnerability. That's where the cost of networking and batteries come in. The trends would seem to favour renewable and batteries over the huge investment of money and time for nuclear. For example many rural areas especially can't afford the long power cords

    • @uncommon8896
      @uncommon8896 Před rokem

      I don't trust nuclear to survive natural disasters or terrorist attacks/war targeting power plants. Look at the situation in Ukraine..ppl are worried Russia may intentionally or unintentionally attack nuclear power plants releasing radiation into the atmosphere

    • @adda1237
      @adda1237 Před rokem +9

      @@ralphboardman7443 What are you talking about? Nuclear energy is much cheaper than wind for example. And im pretty sure rural areas shouldnt have to pay themselves to be connected to it

  • @bobwrathall8484
    @bobwrathall8484 Před rokem +18

    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.

    • @stormnorm358
      @stormnorm358 Před měsícem

      Why not just use the electricity from reactors directly?

  • @bluecubepcs2009
    @bluecubepcs2009 Před rokem +8

    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.

    • @notcomply
      @notcomply Před rokem

      There is no such thing as green hydrogen. It’s all a myth. How do you think wind turbines etc are manufactured?

    • @stevem8318
      @stevem8318 Před rokem +2

      If you understood thermodynamics you would know that hydrogen energy, like wind and solar, cannot substitute for fossil fuels or nuclear. Not even close.

    • @zulhilmi5787
      @zulhilmi5787 Před 11 měsíci

      ​@@stevem8318 If you're talking specifically the solar and the wind then yes. But if you're talking about green energy to replace fossil fuels then you're incorrect. The correct term is we cannot substitute it yet. However since greener energy are becoming more and more efficient and cheaper, it would be plausible in the near future.

  • @ashersavin7290
    @ashersavin7290 Před rokem +1

    great video. Thank you!

  • @kentcolgan6139
    @kentcolgan6139 Před 2 lety +197

    It is refreshing to hear this more complete discussion of hydrogen’s potential role in our energy strategy. Too many people are unaware that it takes energy to create hydrogen - that, on earth at least, hydrogen is an energy storage and transport medium, not an energy source. In effect, hydrogen is a battery alternative. The energy lost in creating, storing, transporting, and using hydrogen is significant.
    As with so many social media and regular media energy discussions, there was no discussion of nuclear energy. Generate hydrogen with nuclear power and the result will actually be emission free. No need to drink petroleum industry cool-aid.

    • @colingenge9999
      @colingenge9999 Před rokem +19

      There is plenty of discussion about Nuclear reactors. You speak as of no one is ever thought of it. The biggest problem is the LCOE of nuclear power runs around $.25 per kilowatt hour versus renewables with battery storage add around $0.025 per kilowatt hour. Even if we had unlimited funding and an unlimited number of nuclear experts and an unlimited number of locations to site nuclear reactors and unlimited clean water for the operation, we don’t have the 10 years to wait that it will take to put a nuclear reactor online.
      Storing the output of a nuclear reactor in hydrogen only makes it worse since that will increase the cost of that stored energy by a factor of four. Nuclear reactors are actually get in the way of other cheaper more effective solutions since a contract is written to use all the power a nuclear reactor can produce over its lifetime forcing us to keep this zombie alive even though we have sources of power that could be 10 times cheaper. I would place nuclear reactors in the same category as hydrogen transportation; they are solutions pushed us by governments and funded by the fossil fuel industry because they know they’ll not result in a significant loss of fossil fuel sales which at the end of the day is driving everything.
      The other clue is that to my knowledge no private investors have ever bought a nuclear reactor simply because they do not and will not make money. Only governments that are willing to extensively subsidise money losing operations will fund nuclear reactors.

    • @aaronfield7899
      @aaronfield7899 Před rokem +5

      Can we just use geothermal heat to produce hydrogen since less electricity is needed to perform electrolysis in steam?

    • @colingenge9999
      @colingenge9999 Před rokem +4

      @@aaronfield7899 You are probably thinking of a process where steam is used with natural gas to create hydrogen. It is unlikely that geothermal heat could produce hydrogen very efficiently but then there is no process that produces hydrogen very efficiently.

    • @aaronfield7899
      @aaronfield7899 Před rokem +1

      @@colingenge9999 you never heard of thermolysis? It's Litterally the reason why there is bo water on Venus.

    • @wrzl1675
      @wrzl1675 Před rokem +7

      I lived fairly close to 3 Mile Island… be very careful what you wish for. As the scientists said there “when profit $ is involved, safety gets ignored”…

  • @GardensoftheAncientsHerbal
    @GardensoftheAncientsHerbal Před rokem +185

    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.

    • @donaldbaker1554
      @donaldbaker1554 Před rokem

      Carbon Dioxide is NOT the main problem the gas trapped in the Tundra of Russia and Canada is more lethal as it has 10 times the Potency of that particular gas : METHANE and is being released in vast quantities into our atmosphere

    • @petebusch9069
      @petebusch9069 Před rokem +9

      That's an awesome story.

    • @bush2far
      @bush2far Před rokem +4

      The Acid never lie’s 🤟

    • @MrBobmac10
      @MrBobmac10 Před rokem +3

      Yeah sure

    • @cheesuscrust7645
      @cheesuscrust7645 Před rokem +4

      what a champ lol

  • @yuvalmilrad1
    @yuvalmilrad1 Před rokem +1

    Very interesting thanks. Just one comment... keep in mind that increased demand also increase research budgets, which would definitely increase production efficiencies. That is quite saturated in fossil fuels since most assume that their "golden age" is about to end. In addition, there is alsobio-hydrogen, or semi bio that is being extensively researched and would make hydrogen production more spread around the globe, so in general local markets could supply their own energy rather than relying on a centered industry. That will generate a better control on demand to production ratio and minimize storage costs and need.

  • @genevievegrondin2378
    @genevievegrondin2378 Před 25 dny

    I got a question. The differential of energy between the energy (electricity) used to produce hydrogen is lost in heat that is transmitted to the solution of water where the hydrogen come from right? If yes, using a low differential heat pump to take the heat back to electricity then hydrogen production again would take us closer to a closed loop? Then producing hydrogen would be a damper for the electricity production. Yes? I know i got a lot of questions here. The most important is: the trash of the hydrogen production is the lost of energy in heat form to the water solution in the process? I'll manage the rest.

  • @williamcollins9254
    @williamcollins9254 Před rokem +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.

    • @rickschroth9869
      @rickschroth9869 Před rokem

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

  • @jasonbrown2567
    @jasonbrown2567 Před rokem +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.

    • @avoice423
      @avoice423 Před rokem +2

      You still need carbon to make high carbon steel, because the carbon integrated with the iron gives the steel it's sought after properties.

    • @edwardslevin6013
      @edwardslevin6013 Před rokem +1

      I was texting Richard in the comment about finding the route out of the tunnel and I somehow texted you .

    • @gazlives
      @gazlives Před rokem +2

      fusion is only 15 years away as it will be in 15 years. :)

    • @drunvert
      @drunvert Před rokem +2

      It would be the most expensive steel ever produced.

    • @fredschnerbert1238
      @fredschnerbert1238 Před rokem +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

  • @rogerhynes9875
    @rogerhynes9875 Před rokem

    Is the cost of recovering material to build wind mills and solar panels plus installation cost worth it as far as emissions? Also what about producing hydrogen with the overflow from dams producing electricity?

  • @John-ye4nv
    @John-ye4nv Před 11 měsíci +1

    Nice video, although I am curious when you compared hydrogen powered cars to lithium ion battery cars you did not consider energy costs for mining and producing lithium batteries as well as costs of recycling dead lithium batteries in your comparison.

  • @sachinsashital4539
    @sachinsashital4539 Před rokem +24

    I saw in another video that that one big problem with Hydrogen is also storage. Being very tiny, its molecules escape more easily out of containers and storage loss is a big problem. I am no expert and would like to know more about this.

    • @Sebastian_Gecko
      @Sebastian_Gecko Před rokem +4

      It is a problem, but a solvable one. I'm personally not worried about it.

    • @vanvan143
      @vanvan143 Před rokem +3

      @@Sebastian_Gecko Solvable but not sensible. Cost for that is way too high. Use hydrogen in industry and thats about it.

    • @neon-john
      @neon-john Před rokem +10

      I used to own a large industrial welding supply and compressed gas company. We had a liquid air oxygen, nitrogen and argon separation plant. We sent our helium, hydrogen and acetylene tanks to regional fill stations. Didn't want those hazards around my plant.
      hydrogen is the smallest atom but it exists as a diatomic molecule which is a little bit larger than a helium atom. We had no hydrogen diffusion problems but we DID with helium. The standard fill pressure for ordinary gases is 2250PSI. I had my helium tanks filled to 2275PSI so they could sit around on the dock for a month or two and still had the helium I was charging for. My men were trained to gauge each tank sold before loading it in the customer's vehicle to make sure it hadn't sat on the dock too long.

    • @martinworth8980
      @martinworth8980 Před rokem +2

      So you store and transport it as Ammonia NH3 or other “LiquidWind” products.

    • @jaredr9554
      @jaredr9554 Před rokem +1

      That is an irrelevant problem with correct storage it would be no issue.

  • @damienlieber
    @damienlieber Před 2 lety +69

    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

    • @motogptv452
      @motogptv452 Před rokem +4

      the status quo needs one energy source that is dominant over the others to maintain its monopoly. it's money and power that ultimately matter.

    • @xhames61x
      @xhames61x Před rokem

      Gender type is binary

    • @michaeldavison9808
      @michaeldavison9808 Před rokem +2

      True, but with wind solar and tidal power all delivering electricity when it suits nature, not when it suits consumers there needs to be a way of storing this energy. There is a limit to how much pumped water storage sites are available and the (I believe) french experiments in the 1980s with high speed mag-lev gyroscopic energy storage weren't a success. But turning it into a liquid fuel that we can burn or put in cars is the perfect solution. If the energy is free and will go to waste it doesn't even matter how efficient electrolysis is.

    • @rad8078
      @rad8078 Před rokem

      I think the hard truth is nothing is the real solution, but that’s doesn’t mean we shouldn’t get as close to it as possible

    • @blove142
      @blove142 Před rokem

      the best use of Hydrogen is in its form as H2O, as in you dam a lake or river and make clean electricity with it. the "hydrogen economy" is such a ruse, please get a grip and face reality people!!!! Conservation could cut our problems in HALF overnight, we waste as much as we use. peace out

  • @gerrygaughran9798
    @gerrygaughran9798 Před měsícem

    I've invested in a solar firm company in Ireland. And any of the electricity when it's not needed is converted into hydrogen. But we should always keep our options open for new Technologies. I enjoyed your video very much

  • @David_Hui
    @David_Hui Před rokem +2

    There is the 3rd alternative to produce hydrigen that was not mentioned in this video. It is to produce hydrogen from heat waste from nuclear power plants' reactors. Water can be splitted into hydrogen and oxygen directly by heating it at high temperature, and this can be done by making uses of waste heat from existing neuclear reactors, with some modification.

    • @ryoukokonpaku1575
      @ryoukokonpaku1575 Před rokem +4

      Yeah, that's called Pink Hydrogen which wasn't discussed here. The experiments from Japan for VHTR (very high temp reactor) type plants are a really good candidate for this. Since it operates at really high temperatures, it can split hydrogen from water via thermochemical cycle which is much more efficient than electrolysis. This also can generate a lot of hydrogen at a stable rate since it's using waste heat from the already running nuclear reactor. It kinda aligns with Japan's big bet on hydrogen, so I can see these types of reactors to play a big role on its viability.

  • @PressurenFlames
    @PressurenFlames Před rokem +6

    I did like the clip much. I see it the same way: There is a big potential and it could be used for basically anything but just because it could, doesn't mean it should (same as with all other types of solutions as batteries, fossil fuel etc.).
    What I was missing when talking about passenger cars or vehicles in general, that Toyota recently has successfully tested their hydrogen combustion engine in a Corolla during a 24h endurance race in Japan. It sounds pretty promising (besides the still required upgrade of refueling stations).
    Would be interesting to hear opinions about this concept outside the "Toyota bubble" ;)

    • @paulmichaelfreedman8334
      @paulmichaelfreedman8334 Před rokem

      What I want to know is what happens if toyota would leave the car for two weeks in an unventilated garage with the tank full.... I'm willing to bet a single spark would obliterate the garage and everything in it

    • @MrGaryGG48
      @MrGaryGG48 Před rokem

      @@paulmichaelfreedman8334 That danger would be very similar to gasoline. If the car has a leak in the fuel system, the vapor would be as explosive if not more so. From everything I've heard in this discussion so far, gasoline contains more BTU per volume than hydrogen so it would be a more violent explosion. You wouldn't want to be standing next to either one.
      The practical use of hydrogen that I haven't heard discussed recently is as the fuel to power an internal combustion engine instead of gasoline/propane/etc.. I studied the possible use of hydrogen more than 20 years ago but the research either never got off the ground or it just wasn't publicized. I think the trade off would be in that while hydrogen doesn't have the BTU (energy) of gasoline, it is a much more benign choice in that it is far less harmful in the environment.

  • @DPranavVaidik
    @DPranavVaidik Před 2 lety +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

    • @salamander5703
      @salamander5703 Před rokem

      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!

    • @glynnec2008
      @glynnec2008 Před rokem

      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.

  • @Gandalf606
    @Gandalf606 Před rokem +4

    British company JCB have already pioneered working lorries and diggers using green hydrogen. And Toyota successfully ran a green hydrogen powered Corolla around a 24 Race at Fuji Raceway last summer. So, if these companies can do it, others can too.

    • @Glarus80
      @Glarus80 Před rokem +2

      The point is you will never know whether the hydrogen you tank is gray, blue, green or a mixture of all of them. It will be never green, if only you do not produce it yourself. Energy-to Hydrogen-Back to energy has very poor efficiency. There are other more efficient ways to store and use energy.

    • @amraceway
      @amraceway Před 10 měsíci +1

      Hydrogen is greenwashing at its finest. The Toyota you mentioned was a flop. Hydrogen is super expensive to sore and must be under enormous pressure. At best a super expensive low energy fuel.

    • @Gandalf606
      @Gandalf606 Před 10 měsíci +1

      ​@@amraceway - not in the view of Toyota Engineers and one of their clients.
      JAN. 01, 2023 4:31 PM ET, BY SEBASTIAN CENIZO, CarBuzz Magazine: 'Koji Sato, president of Gazoo Racing Company suggested that these improvements could accelerate hydrogen's introduction to production cars: "Problems can be identified quickly by using the car at its limit. Then [we can] proceed with the countermeasures in an agile manner [to be ready for the next race.]"
      He added that "large-scale demonstration experiments are progressing toward the realization of a hydrogen society," noting that motorsports will help to progress the production and transport of hydrogen fuel. Toyota says that this particular racing series has meant that the "development of the hydrogen Corolla is progressing at an astonishing speed," which is great news for those who don't want to be tied to EVs.'
      And...
      'While developing the use of hydrogen, Toyota Transport's biofuel trucks and Commercial Japan Partnership Technologies FC's light-duty trucks will deal with carbon-neutral fuel transportation. Already, FC trucks have increased transportation efficiency by 5.5 times, but it is working to further increase the loads it can manage. Furthermore, Yamaha, Kawasaki, Suzuki, Honda, Denso, and Toyota are all "conducting joint research in hydrogen engines with a view to installing them in motorcycles."
      Simultaneously, Toyota is reusing raw materials in the production of suspension components and other parts to reduce its CO2 emissions in manufacturing.
      But the most exciting news is that President Sato revealed he had received inquiries from domestic and international OEMs and suppliers that want to work together on hydrogen tech.'
      carbuzz.com/news/hydrogen-combustion-toyota-gr-corolla-has-already-proven-its-value-in-motorsport

  • @jamesmason8944
    @jamesmason8944 Před rokem

    What is the consumption of water to hydrogen production.?

  • @st-ex8506
    @st-ex8506 Před rokem +35

    Chemical engineer here, with many years of experience in the hydrogen and related industries:
    The best use of green di-hydrogen is to use it as... hydrogen! By this I mean to use the hydrogen atoms as such, in chemical reactions, and NOT as an energy vector or storage. For the latter application, di-hydrogen is thermodynamically, physico-chemically, as well as economically significantly inferior to other solutions, mainly but not exclusively batteries. I can foresee some rare exceptions to this rule, though...
    Green hydrogen? Yes! But to replace grey AND blue hydrogen( the latter being utter non-sense) in industry! Forget about fuel-cell cars, or even trucks! For oceanic transport and long-range air transport, the jury is still out.

    • @vandamme1479
      @vandamme1479 Před rokem +1

      Thanks good comment

    • @st-ex8506
      @st-ex8506 Před rokem +4

      @@budbud2509 but CO2 IS indeed the thermostat, while water vapor is the main heating element.
      We should only stop setting that thermostat higher every year. My professional mission is indeed to help setting, with my very modest contribution, the thermostat a bit lower!

    • @st-ex8506
      @st-ex8506 Před rokem +7

      @@budbud2509you do not even start to understand the role of CO2, and of other gases, including the main direct culprit, water vapor, in the greenhouse effect! So, I suggest you educate yourself on the matter! Don’t forget to understand the effect of altitude and CO2 concentration. You see, it is much more complex than a direct relationship between CO2 concentration and temperature. Everything necessary can be easily found by who is genuinely willing to learn!

    • @grittsy
      @grittsy Před rokem

      @@st-ex8506 Interested on your take with nuclear. Small modules still too expensive? Yes I know of the cons with this source of energy. But that to one side pound for pound could it be interim source of power until new tech in the saddle.

    • @st-ex8506
      @st-ex8506 Před rokem +6

      @@grittsy I believe that the existing nuclear must absolutely be maintained (save unfixable security issue), as it will, in the countries that have significant amount of it, greatly facilitate and speed up the transition to renewables. Once we'll have achieved complete energy decarbonation, we'll have the time and the luxury to contemplate nuclear shutdown, or further development.
      As to building new nuclear plants, even of the latest generation, I believe they'll come too late. Between site selection, fighting opposition, obtaining permit, construction proper and then commissioning, it takes the best part of two decades in our countries. Way too long compared to the urgency to act that we are facing.
      I have obviously read about "mini" nuclear reactors, but I am no specialist, so I shall abstain to relay some opinion that is not fundamentally mine. Having said this, such modules may have the advantage of better power generation geographical distribution, but their power will be greatly more expensive than solar and wind.
      Several academic teams, as well as think tanks (I recommend reading the Energy Report of RethinkX.com) have now demonstrated that (almost) all countries can generate 100% of their energy needs (not only power, but all energies!) with a combination of solar + wind storage, and at unbeatable low cost; existing nuclear, hydro and other renewable energy resources helping in the transition.

  • @pleasego11
    @pleasego11 Před rokem +8

    Informative video. I'm confident that if we keep on digging in that direction, we'll get something out of it. Progress are made everyday and with the current greenhouse disaster, we should leave no stone unturned...

  • @mkeysou812
    @mkeysou812 Před rokem +1

    Like a lot of green solutions, there seem to be so many problems to surmount. It may have some niche uses, but I don't think it will power most vehicles

  • @LVANH_Lynx
    @LVANH_Lynx Před rokem

    Great video,
    Thanks.

  • @frenchcreekvalley
    @frenchcreekvalley Před 2 lety +7

    I really appreciate your even-sided treatment of this important topic. Thank you.

  • @SaveMoneySavethePlanet
    @SaveMoneySavethePlanet Před 2 lety +34

    Wow, I seriously had my own hydrogen video ready to release on Tuesday, but now I might need to delay it. Regardless, you’re spot on with everything my research found as well:
    Places hydrogen can be used: when made from renewable energy, maritime shipping, aviation, steel production (CCS needs to be applied though), and long term storage of energy.
    Places hydrogen can’t be used: when created from methane (even if CCS is applied), cars, home appliances, industrial process that use medium heat (think any normal oven)

    • @aswad7368
      @aswad7368 Před 2 lety

      Please search this on youtube "Hans Olof Nilsson and the first hydrogen-powered house" you will see that your conclusion is not completely correct.

    • @SaveMoneySavethePlanet
      @SaveMoneySavethePlanet Před 2 lety +8

      @@aswad7368 I watched it. The only reason he has hydrogen power is for long term storage of energy so that he can stay disconnected from the grid during the winter. I explicitly mentioned long term storage of energy as a place where we should use hydrogen fuel.
      So it looks to me that we’re saying the same thing.

    • @rendercool
      @rendercool Před 2 lety +2

      Hydrogen can probably also be used in heavy vehicles like cranes and tractors, as electrifying those vehicles would make them way to heavy and the necessary charging makes it almost impossible to have them running like 18 hours straight

    • @aswad7368
      @aswad7368 Před 2 lety

      @@SaveMoneySavethePlanet We are almost saying the same thing, you have mentioned that it can not be used in cars(I awesome like a fuel) or not efficient enough, I say it can be used in cars in an indirect way. Solar power - > storage in hydrogen- > electricity- > Bev cars (of course it is not the most efficient way but in countries like Sweden where winter is long and solar power is reduced this is the best case scenario in my opinion) This enables green energy all year long so Hydrogen is a viable source of energy in my opinion

    • @SaveMoneySavethePlanet
      @SaveMoneySavethePlanet Před 2 lety +1

      @@rendercool interesting. This is the first argument I’ve heard about cranes. Sounds likely. Although some more stationary cranes like in a shipyard could likely be patched directly into the electrical grid so this is maybe more likely for mobile ones.

  • @scottmclain2738
    @scottmclain2738 Před rokem +1

    great, very clear video.

  • @jmcmob608
    @jmcmob608 Před rokem +1

    Thank you very much...

  • @Wiseguy3hh
    @Wiseguy3hh Před 2 lety +18

    Awesome video! Thank you for pulling this information together! Although your round trip efficiency number for hydrogen(40%) is generous. For actual real world applications it can vary between 10% to 40%.

    • @batanena
      @batanena Před 2 lety

      It is better 40% H2 energy efficiency than another world pollution with lithium excavation, not to mention recycling the batteries, another pandora box of plastic plague.

    • @Wiseguy3hh
      @Wiseguy3hh Před 2 lety

      @@batanena what? Are you trying to say that O&G is less toxic/polluting than EVs/batteries over their lifecycle? That's not true. Just Google it. You're right that batteries need to be recycled and that's where Redwood Materials and others will play a significant role. Can the same be said for grey H2 (SMR), which is nearly the only form produced today? 😁

    • @batanena
      @batanena Před 2 lety

      @@Wiseguy3hh Learn first what pollution it takes to excavate Lithium. Recycling battery is not even regulated, and big corporations, including Tesla, will try everything to stay away from responsibility in taking ownership in this process. BEV just opened the doors to yet another disaster to this planet. As for for H2 production only green is considered and it is picking up in mass production.

    • @Wiseguy3hh
      @Wiseguy3hh Před 2 lety

      @@batanena so are you referring to mining the lithium clay/ore and then separating it traditionally w/ acids or the modern salt process that Tesla has spoken about.. or are u referring to the drying lithium brine beds? The modern methods, which will most likely be used with future expansion, have significantly less impact but when compared to the ecological devastation that O&G has caused...is this just "what about ism"?
      O&G launched humanity forward but we need to take the next steps to a renewable/clean future. Fundamentally this new clean energy will need to be stored for future use with either batteries (80-90% RTE) or with H2 (10-40% RTE). Plus... for stationary or rolling batteries, the electrical grid already exists and will only need a bit more expansion but for H2, everything has to be built from the ground up... requiring a massive new infrastructure. All of this has a toll on our environment. We need to choose wisely which path we (as a society) take.

    • @billnorris8457
      @billnorris8457 Před rokem

      Reformation from natural is about 80% efficient.

  • @keikokenziesirasta7086
    @keikokenziesirasta7086 Před rokem +6

    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.

  • @etrax43
    @etrax43 Před rokem +68

    A group of belgian scientist, Ku Leuven, is developing a solar panel that use the energy created by the sun to power a electrolysis process, and recent tests have found out that one of them could produce up to 250 liters of hydrogen fuel for cars in a day. I hope that they will continue on this path, because it would mean that we almost wouldn't need to pay for fuel at all by producing it at home.

    • @alkh3myst
      @alkh3myst Před 11 měsíci +8

      ExxonMobil's worst nightmare.

    • @ercost60
      @ercost60 Před 11 měsíci +21

      It's likely that charging batteries with that sunlight via solar panels is much cheaper and 3X more efficient than making hydrogen via solar electrolysis.

    • @grzegorzm.9293
      @grzegorzm.9293 Před 10 měsíci +12

      @@ercost60 Actually, no. Free or uber-cheap energy is everywhere-the main issue with energy is not the production but storage and distribution.
      Solar panels produce electricity when/where nobody needs it, and fail miserably when/where we need it- you gave a great example of this.
      I need my car during the day- on the road! not on the charging station. I'm happy to charge EV overnight when I'm sleeping, but your "cheap and 3x more efficient" solar panels are not working then. Sure, I can spend 50k$ on a power bank, but this solution is neither cheaper nor more efficient. On top of that the batteries will fail after 5 years, and most of the countries have like 3-6 months of winter.
      That's why H2 production is a great idea- it can produce H2 when/where nobody needs energy, and this energy can be easily and cheaply stored+delivered to the right place.
      I don't care about the theoretical efficiency of a useless process. What matters, is the practical efficiency of a useful one.

    • @tijljappens7953
      @tijljappens7953 Před 10 měsíci +1

      ​@Grzegorz M. There are more promising lage scale energy storage options than hydrogen in my view. I think, the main one is the liquid flow battery. This has a far better efficiency and is also very scalable...
      Of course if you can make it directly in the solar panel you could get a more efficient solution that is feasible, I am not sure about that...

    • @CThought
      @CThought Před 9 měsíci +1

      We can use solar panel top of our car so that it produce electricity while driving and parking. Secondly we can use two battery instead of one. One battery will be charging under solar panel at home and it will be full charged during whole day, next day you can replace this battery with empty one. Thirdly if we still have enough solar energy, we can store it as hydrogen fuel.

  • @marcuslopes2017
    @marcuslopes2017 Před 11 měsíci +1

    The biggest problem is not producing the H2, but actually transport and storage. These will raise the cost (and risks) a lot.
    H2 for mobility just fit for developed countries.

  • @jacoe2159
    @jacoe2159 Před 2 lety +21

    Hydrogen ( green of course) has a place as an energy storage method to be used among others. There is no single silver bullet to reduce dependency on fossil fuels.

    • @5353Jumper
      @5353Jumper Před 2 lety

      So many things need to fall into place before this is reality.
      We need to be at a point where we have excess daytime green generation that needs to be stored.
      If there is no cheap battery storage, like used bEV batteries or some other cheap battery. Storage does not require expensive lithium batteries.
      If other storage methods turn out to be duds like gravity based storage.
      If there is more use for the hydrogen, like we actually do get market share of trucks, trains, ships, planes somehow.
      If all the above transportation technologies get way more efficient than they are today.
      If a distribution infrastructure happens which can safely and efficiently get the hydrogen to the load destinations.
      If nothing better comes along.

    • @TheBandit7613
      @TheBandit7613 Před 2 lety

      Yes there is. FUSION. Period, end of story.

    • @5353Jumper
      @5353Jumper Před rokem

      @@TheBandit7613 well go ahead and build a safe and efficient fusion reactor then and everything is solved I guess.

    • @TheBandit7613
      @TheBandit7613 Před rokem

      @@5353Jumper Not as long as so much money is wasted on cute little windmills and solar panels. A good windmill puts out rated power about 30% of the time, solar even less. Germany has thousands, their power costs 4X more and still not close to enough. They are going back to COAL!!! There's one answer, only one. Nukes. Build fission, and work seriously toward fusion.
      Wind and solar are close to worthless. Everyone knows it.

    • @oldgysgt
      @oldgysgt Před rokem

      @@TheBandit7613; I can't do FUSION, can you?

  • @Grimenoughtomaketherobotcry

    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.

    • @brianadams1907
      @brianadams1907 Před rokem +12

      If there were means of persuading our people to go on with the small local reactor plans the future would look much better for us and the planet .

    • @Brian-om2hh
      @Brian-om2hh Před rokem +7

      Around 35 to 40% of the World's lithium is mined in Australia, with further large deposits in South Africa, the US, Canada, Brazil, Chile, and Cornwall in the UK..... So China certainly doesn't have *most* of that......

    • @VinnyUnion
      @VinnyUnion Před rokem +2

      Maybe just ridden the demanding pests?

    • @davidravnsborg2565
      @davidravnsborg2565 Před rokem +1

      @@AkshatSharma1505 Thankfully there are new processes coming out for many of them which create little waste. Especially based on hypersaline fluids, found in some old oilwells.

    • @davidravnsborg2565
      @davidravnsborg2565 Před rokem +5

      @@AkshatSharma1505 Sure. There are companies in Canada, the UK, and Germany all building test plants using proprietary approaches, to extract lithium from lithium brine. In the UK, I think the brine occurs closer to the surface rather than in old oil wells. But the principle is the same. The idea is that they just extract it from existing brine in a minimally polluting process.
      The current alternative is extracting it from lithium rich rocks, which requires creating a slurry - kind of like the lithium rich brine, but also filled with other things - extracting lithium, then leaving behind the slurry remains in massive tailings ponds.

  • @johnstride9642
    @johnstride9642 Před rokem +1

    An interesting discussion but the one thing you haven’t talked about is the hype that the only emission from using hydrogen in either a fuel cell or engine is water. There is the potential to emit NOX especially from engines and central heating boilers.

    • @kevinaschim8475
      @kevinaschim8475 Před rokem

      Exactly. Plus ice engines are only 36% efficient. Complete waste of expensive energy.

  • @arjunratnadev
    @arjunratnadev Před rokem

    good point, deceiving the ill knowing masses on clean fuel while hiding it's truly inefficient and dirty production process 🤔

  • @prof.puggle1631
    @prof.puggle1631 Před 2 lety +4

    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.

    • @gallowsend
      @gallowsend Před rokem

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

    • @jeschinstad
      @jeschinstad Před rokem

      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.

  • @pasoundman
    @pasoundman Před 2 lety +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.

    • @scottdean8576
      @scottdean8576 Před 2 lety

      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.

  • @adamchess4543
    @adamchess4543 Před 5 měsíci +1

    The question is how much energy does the electrolysis prosses require?

    • @DWPlanetA
      @DWPlanetA  Před 5 měsíci

      Hey Adam! The needed energy varies, especially depending on the efficiency of the electrolyzer. Mostly it is between 40 and 50 kWh. However, there is lots of research going on to lower the amount of energy needed.

  • @bluetortilla
    @bluetortilla Před 4 měsíci

    Nothing could be more obvious, simple, and elegant as embracing hydrogen as our primary fuel source.

  • @jorgeastiazaran
    @jorgeastiazaran Před 2 lety +52

    Great video.
    There are some ways which are being studied to increase hydrogen energy density, such as: ammonia and metal hydrides.
    Other issues being faced by batteries are: rare materials supply, battery charge retention and waste management.

  • @akshaykr3813
    @akshaykr3813 Před 2 lety +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.

    • @jingnanyi
      @jingnanyi Před 2 lety

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

    • @drakekoefoed1642
      @drakekoefoed1642 Před rokem

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

    • @fredjones7705
      @fredjones7705 Před rokem

      Hydrogen is renewable genius.

    • @thomasmaughan4798
      @thomasmaughan4798 Před rokem

      "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.

    • @akshaykr3813
      @akshaykr3813 Před rokem

      @@thomasmaughan4798 Yes as of now it does, but doesnt necessarily means in the future and its already getting advanced. What I was talking abt is, liquifying it, then transporting it over long distance and then regasifying it doesnt make sense to me especially considering the boil-off rates. Stored liquified hydrogen is considered having high volumetric energy density but the issue is as stated before. Instead, incorporating hydrogen production and power generation units near dense populated areas, steel plants, refining and mining units could prove to be a viable option.

  • @NorthernMonkey2
    @NorthernMonkey2 Před rokem +12

    Hydrogen has its part to play as a mixed portfolio of energy distribution. The pie is big enough for all players to be sustainable.

  • @IAmGonnaPutSomeDirtInYourEye1

    Good luck with storing that and the maintainence of it.

  • @jamesstanley11
    @jamesstanley11 Před rokem +16

    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 👍

    • @gazlives
      @gazlives Před rokem +2

      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.

    • @elfillari
      @elfillari Před 8 měsíci

      So wrong answer, the battery materials are recycleable with 94%, but the rest of the materials are NOT recycleable and guess, wich material they are? Yes, those materials are the most necessary for the battery! lithium, graphite, cobalt, and manganese will lost mainly all rechargeability after their first cycle before recycling, after that it takes ten time more time to charging than first fresh materials!😢😢😢

  • @petarmarchev355
    @petarmarchev355 Před rokem +3

    More reporters like that please!

  • @JeffreyBrooksVictoriaBC

    This piece is excellent but it is mainly about energy for transport industry. You did mention steel industry but not for powering cities. No mention of powering the grid with small modular nuclear. That would be best for stationary loads like the grid (and charging EVs) I really think Traveling Wave that burns spent fuel rods from current reactors. Also you did not mention the project Germany has in Canada where wind will produce H2 which will be made into NH3 which is easy to transport, it burns and is the basis of fertilizers.

  • @Padandi
    @Padandi Před rokem

    Is there a study of lithium and its global footprint? Not only into greenhouse gas emissions but also on its environmental/social impact when mining it?

  • @kevinheeremaaa
    @kevinheeremaaa Před rokem +18

    Very interesting video! You point out rightly that we should not use our hardneeded and scarce green energy to produce green hydrogen, since too much of the energy will get lost. However, we’re dealing with congestion on the grid (in the Netherlands), which makes it impossible sometimes to install new windturbines and solarparks on the grid. Hydrogen could be very beneficial here. By storing the abundant electricity from hydrogen, we’re not using electricity that would otherwise be brought to the grid. By using hydrogen as a battery of the grid, we’re able to use green electricity also at times when production of green electricity is not possible.

    • @karlgunterwunsch1950
      @karlgunterwunsch1950 Před rokem +2

      Hydrogen electrolyzers are not dealing well with inconsistent amounts of energy. They need to be run off a stabilized grid with constant energy flow 24/7, first thing to suffer is efficiency, have complete lack of energy and the electrolyzer will suffer membrane decay and permanently lose efficiency and eventually require a new membrane - which is costly both in resources and in price (which will be clear once you realize that these resources contain some of the rarest metals in the world, rare earth metals with their bad wrap are child play compared to for example iridium).

  • @jonathanclark5240
    @jonathanclark5240 Před rokem +4

    Green hydrogen technology makes the most sense for replacing hydrogen sources that currently rely on gray hydrogen. For energy sources, though, we should focus on electrical/battery technologies.

    • @jeschinstad
      @jeschinstad Před rokem +1

      Hydrogen is an electrical battery technology. Batteries are not energy sources.

  • @bernardpearson5474
    @bernardpearson5474 Před rokem +4

    One thing that you don't mention in this video is the use of hydrogen gas to drive a normal internal combustion engine, rather than to power a fuel cell. An advantage of doing this would be that it can use existing technology and internal combustion engine production lines which would be much cheaper than converting to electric power via a fuel cell, and would be far less polluting The only disadvantage that I can see, (not a large one) is that the hydrogen would need a larger tank, which would need to be a pressure vessel, perhaps similar to existing methane gas converted vehicles. Thoughts?.

    • @sentfrom4477
      @sentfrom4477 Před 2 měsíci

      If any fuel is used to produce a hot flame in air, NOX is produced. This would apply to hydrogen too.

    • @kevinshearer1362
      @kevinshearer1362 Před 2 měsíci

      a catalytic converter negates NOX doesn't

  • @colin55111
    @colin55111 Před měsícem

    You didn’t mention the high pressure needed to store the hydrogen.

  • @kevenharvey9711
    @kevenharvey9711 Před 2 lety +3

    IMO, renewable energy production needs to come first, then the low efficiency energy storage of green hydrogen wouldn't matter nearly as much. Until then I guess it could be used as storage when there is excess production, but that would mean being able to start/stop production rapidly, maybe a battery buffer could help.

    • @jeschinstad
      @jeschinstad Před rokem

      Storing excess electricity is dead simple as long as people use hot water. Much easier than storing it as hydrogen. Norwegian water heater company OSO Hotwater is doing that right now, with a potential for megawatthour storage per day in Norway alone, to be naturally expanded as people replace their heaters.

    • @WizardofoOZeAU
      @WizardofoOZeAU Před rokem

      Shipping and industrial processes that currently use coal directly (like steel-making) make up a massive part of greenhouse gas emissions that most of us do not directly see although we would notice their significant absence in our daily lives. Clearly cargo ships and steel plants (which burn coal rather than need it for electricity) cannot replace their requirements with renewable energy production. Ships need to carry their energy source with them for extreme distances and carrying extreme loads; wind, solar etc cannot provide the chemical elements for the reactions necessary to produce steel - hydrogen provides an alternative to both, although in completely different ways.

  • @erikguillermoresendizmora822

    Very interesting. It would be nice to also analise the impact of facilities in nearby ecosystems and to compare the harmful effects of the three methods of production mentioned here. Also, is the water produced from its combustion to be recovered or released to the atmosphere? If released and used massively, would all this water vapour also become a different type of environmental problem? In the case of lithium batteries, they might be a better solution but what countries have the resource and what are the implications for their people? We can't close our eyes to the environmental damage produced by big transnational companies operating in poor countries that have had plenty of natural resources.

    • @jorgeeduardodussanvillanue46
      @jorgeeduardodussanvillanue46 Před 2 lety

      The water can be condensed and used for other processes. Also, because of water's low residence time in the atmosphere it is not even a concern of some of ot leaks, as it will just quickly enter the water cycle (that is the academic standpoint on this possibility as of right now). An advantage for hydrogen is that a lot of infrastructure for its transportation is already built, in the form of long distance gas pipes used for natural gas.

    • @cherryjuice9946
      @cherryjuice9946 Před rokem

      I can't see how the exhaust water would be a problem. Look at what happens after a rain storm. Puddles at the end of everyone's drive way, wet sidewalks, wet roads, etc. This is a huge amount of water, but it evaporates into the air without notice. Water vapor from cars, buses, trains, etc. would be small compared to a rain storm. If everything was run on hydrogen (I don't think that's a good idea, but it's worse case), we'd have slightly more humid days, but that's it.

  • @Dr-BA
    @Dr-BA Před 7 měsíci

    Thanks for this great presentation. I don't understand why producing electricity to produce Hydrogen. Why not using electricity that we already produced. Each time you go from one from of energy to another form you are loosing. It's simple thermodynamic.
    The only time Hydrogen makes sense to me if the electrical battery energy density is not reached for the airplane...
    Please correct me if I am missing something.
    Thank you!

  • @dougmeader2772
    @dougmeader2772 Před rokem

    will batteries last forever what will we do with old batteries

  • @kenwhitfield219
    @kenwhitfield219 Před 2 lety +4

    Just like we use many different forms of fossil fuel to create energy today, we must have multiple types of green energy too. Hydrogen for large transports like ocean-going ships. And something far more energy dense for smaller vehicles like motorcycles.

  • @lafamillecarrington
    @lafamillecarrington Před rokem +20

    Nice video. We need to keep investing in a range of energy systems - improving hydrogen production and storage, and battery technology (as well as wind, solar and tidal power). Perhaps you could do another video on the infrastructure required for a hydrogen-based economy?

    • @michaeldavison9808
      @michaeldavison9808 Před rokem +2

      Battery technology will never be a solution for storing the wind power from a stormy week and then releasing it during calm weather - energy densities are just too low per kilo of raw materials needed to make them. Also most battery technologies can only be fully charged and discharged / recharged a few hundred times. You could find yourself replacing your giant battery stack every 3-5 years (from memory). Turning the energy into a physical material that you can store and move around - even sell to less windy/darker countries is just too much like the LNG everyone wants to buy today - but without the carbon. I think the case for liquid hydrogen being the best prospect for the environment until fusion becomes practical is pretty solid.

    • @Tearstank
      @Tearstank Před rokem

      @@michaeldavison9808 And hopefully with way better conversionrates. You can also use hydro as batteries and pump the water back up and save the energy as potential energy. There are many ways to store energy without using batteries.

    • @daledavies2334
      @daledavies2334 Před rokem

      Let us not overlook where the automobiles of the 50s and 60s were on emissions. We have come a long way on improving the exhaust on modern cars. Natural gas would lower ICE emissions more.

    • @benjaminollis7621
      @benjaminollis7621 Před rokem +1

      And nuclear.... Unless we jump straight to zero point energy we definately need nuclear for decades to come....

    • @JohnJohn-zn8ib
      @JohnJohn-zn8ib Před rokem +1

      Wind power has its effects on the environment, they don’t last long and its composition is hazardous, they kill many species of birds too.

  • @the_grand_tourer
    @the_grand_tourer Před měsícem

    I have been avoiding the hydrogen conversation as I felt bombarded form both ends of the conversation with massive contradictions ... this isn't perfect but thank you DW for a fairly broad overview of the practicalities of hydrogen as a fuel component. Now I feel I can engage more in conversation.

  • @harmzuidema3678
    @harmzuidema3678 Před 28 dny

    I would like to know how much polution there actually is from petrol, propane, or diesel fuel,I think for cars and trucks it is and stays the least poluting fuel, to produce the engine,car and fuel, the whole theme to say,

  • @carolinamoreno6739
    @carolinamoreno6739 Před rokem +4

    Great video to understand the most important about hydrogen- even with no background in chemistry. Thanks!

  • @seandent5141
    @seandent5141 Před 2 lety +3

    Blue hydrogen can also be derived from waste such as end of life plastic. It saves that plastic being dumped in the Ocean, incinerated or landfilled where it degrades releasing vast quantities of methane. Hydrogen from plastic waste is therefore a lot greener than people realise, when you consider what it thorougly

    • @WizardofoOZeAU
      @WizardofoOZeAU Před rokem

      However, the plastics industry relies on a model of ever expanding production of plastics, which are mostly all made from FOSSIL FUELS! Even if you use hydrogen made from plastics, all you are doing is delaying when the carbon is released in the form of a greenhouse gas by a few years. I am not saying don't process existing plastics in this way, but invest in new forms of plastic production e.g. from seaweed or other biological methods that don't require oil/gas/coal.

  • @EdmundWang
    @EdmundWang Před 11 měsíci

    That Canadian facility run by Shell is NOT a "blue hydrogen facility". It's a bitumen upgrader, refinery and petrochemical complex.

  • @Tavorath
    @Tavorath Před rokem

    I see it as part of the solution. Diversifying energy sources should be good news since that implicates major economic activity.

  • @ohasis8331
    @ohasis8331 Před rokem +67

    One thing I rarely hear mentioned is the issue of the size of the hydrogen atom. Since it's the smallest of all atoms, there will be problems in containment and storage. It will simply migrate through whatever is trying to contain it, more so as pressures go higher. Yes, it is sold in H2 cylinders and frankly, I don't know the rate of leakage though that will vary based on materials used and thickness of containers. It also takes a lot of electricity for electrolysis. All food for continuedthought.

    • @bobsmith3983
      @bobsmith3983 Před rokem +9

      Hydrogen embrittlement in metal.

    • @gabrielakerekes5844
      @gabrielakerekes5844 Před rokem

      It was covered in the documentary when they talk about Shell in Canada (huge percentage of leakage )

    • @SorinOltean77
      @SorinOltean77 Před rokem

      Artemis vibes

    • @MikeSmith-tx2lp
      @MikeSmith-tx2lp Před rokem +6

      Absolutely correct, it’s a pig to contain. We had a fuel cell research facility and the materials required for even moderate storage and safe operation were mind boggling.

    • @johndalzell904
      @johndalzell904 Před rokem +5

      Another issue is that the electron in a hydrogen atom has a different spin at different temperatures. As you cool the hydrogen the spin changes and this releases heat. So you can compress it to liquid form only to find it turns back to gas over the next 24 hours.

  • @AnvilDragon
    @AnvilDragon Před rokem +5

    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.

    • @marktwain368
      @marktwain368 Před rokem

      Isn't methane a common by-product of livestock raising? Methane is mostly hydrogen and research into blue hydrogen surely must address how to capture the carbon atoms in that molecule. All of this requires massive dollar investment and there's the problem.

  • @davidmedlyn3475
    @davidmedlyn3475 Před rokem +1

    Hey, this is a great doco but maybe there needs to be more coverage on the methods of storing hydrogen safely - in cars and aeroplanes.
    We all still remember Hindenburg, more discussion on fuel cells might be important.

    • @petebusch9069
      @petebusch9069 Před rokem

      Really, what makes this a great doco considering all the lies and half truths told?