The truth about hydrogen
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- Опубліковано 10 тра 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?
What do you make of the hydrogen hype?
Hydrogen is a Great opportunity. You should make a Video about Algae aswell. They can produce Energy that could be stores with Hydrogen aswell ⚡
🎉🎉🎉🎉🎉finally🎉🎉🎉🎉🎉
Probably over hyped.
Thoughts on using geothermal to make energy and sense its making steam anyway why not also produce hydrogen too.
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: ua-cam.com/video/bcyIbq3NhI0/v-deo.html
How to make "plastic" out of algae and mushrooms: ua-cam.com/video/KVOG-fG5bD4/v-deo.html
We have also done a video on Geothermal energy before. We've just dug it up from our archives for you: ua-cam.com/video/c7dy0hUZ9xI/v-deo.html
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!
The misconception is that Hydrogen is an energy source.
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.
You worded that wrong but I get what you mean, might want to edit that
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.
@@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
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.
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
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.
@@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
@@MichaelTavares It seems you did not even read Reinder's comment.
Transporting hydrogen is also not efficient. Either cool or compress it like crazy.
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
Nuclear is far too expensive, far too slow to produce and has a bad laegacy issue.
@@harryadam1671 but it is literally the only thing that works )))
And it literally isn't.@@trifio5242
Thorium!
Nuclear is expensive and takes a while to build because of bureaucracy. In the USA it can take TWENTY years to build one. While other countries are building them in less than five.
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.
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.
nuclear power with battery done thanks have a great day!
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.
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.
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.
Yep the ammonia method is very promising interms of functionality. But safety risk of that on a gigantic scale is kind of horrific.
How about BH3 instead of NH3?
I also saw a video about combining H with ammonia, and the benefits seem great!
This is surprisingly well balanced. UA-cam 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.
Hydrogen unlike fossil fuel requires as much energy to produce as it provides, so it isn’t as solution for so-called global warming.
I find the 'Just have a think' channel to be pretty well balanced too.
True 👏
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.
lol, he makes it seem like electric cars are unproblematic. up your critical thinking.
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.
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
@@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.😊
@@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?
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.
@@Syulang-nt4kj And there is the problem. Oil/Gas industry has its fingers in so many pies, worldwide let alone in Oz.
Super simplified explanation of what hydrogen strategy is all about. Such videos which explain more and dont pass a judgement are well appreciated
yes, hjydrogen never has or ever will make any sense
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.
@@JohnSmith-pn2vl And there we have it, a person who can't even type (or think?) clearly passing judgement.
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.
"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.
Actually the current energy crisis in europe is caused by natural gas and would (and should) be solved by renewables.
@@superj8502 not this decade.
@@petejung3122 what do you mean?
@@superj8502 we will not get there the next 10 years.
Technology of renewable energy is for now not sufficient.
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.
Thanks good comment
@@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!
@@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!
@@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.
@@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.
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.
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!
Some might say. God said the end is near.
Maybe 2036;why try so haảd. For what
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.
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.
Can we just use geothermal heat to produce hydrogen since less electricity is needed to perform electrolysis in steam?
@@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.
@@colingenge9999 you never heard of thermolysis? It's Litterally the reason why there is bo water on Venus.
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”…
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.
For the last part, gas in your kitchen has smell added to it as well. So there are ways to solve certain 'issues'.
@@cesco1990 “Natural” gas is NOT hydrogen.
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?
Even with perfect welding, hydrogen molecules will leak through intact pipes or storage container walls at elevated rates, because of their small diameter.
@@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.
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.
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.
ExxonMobil's worst nightmare.
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.
@@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.
@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...
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.
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.
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.
@@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...
transition to poverty
@@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)
@@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?
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.
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
That's an awesome story.
The Acid never lie’s 🤟
Yeah sure
what a champ lol
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.
There is no such thing as green hydrogen. It’s all a myth. How do you think wind turbines etc are manufactured?
If you understood thermodynamics you would know that hydrogen energy, like wind and solar, cannot substitute for fossil fuels or nuclear. Not even close.
@@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.
Excellent analysis!! Innovation is a continuous process, some day we will discover the truths and solutions around it
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.
@@petebusch9069 You are right!! But the progress is gradual. Internet is a medium. Different people access it for different reasons.
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
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.
Gender type is binary
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.
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
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
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
Hydrogen power is exponential. You want green Hydrogen. Just make a power plant run by Hydrogen or Nuclear. Problem solved
@@jasonlewis460 When do you start?
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.
You don't understand the politics. Nuclear is a wonderful, cheap, safe energy source. Read up on thorium power plants.
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 ...
to c o n t r o l us, do ...
NOT want the ...
human population to thrive.
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)
Please search this on youtube "Hans Olof Nilsson and the first hydrogen-powered house" you will see that your conclusion is not completely correct.
@@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.
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
@@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
@@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.
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”.
Except surplus isn't a reality anytime soon.
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.
Hydrogen has its part to play as a mixed portfolio of energy distribution. The pie is big enough for all players to be sustainable.
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.
Possibly the most sensible, balanced reflection on both technologies I've yet read.
Never say never, I guarantee it will happen.
And ammonia, NH3 is a transport mechanism that could be exploited
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.
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.
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.
You still need carbon to make high carbon steel, because the carbon integrated with the iron gives the steel it's sought after properties.
I was texting Richard in the comment about finding the route out of the tunnel and I somehow texted you .
fusion is only 15 years away as it will be in 15 years. :)
It would be the most expensive steel ever produced.
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
Would love to see discussion of engineering challenges regarding storing hydrogen safely for use in any of these applications
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!
Great content! Well, we nedd updates about this video. :)
Hey there! Glad you liked the video. We tackled hydrogen-powered trucks recently. You can find the video here 👉ua-cam.com/video/qiQcGdq66DI/v-deo.html
I think the backbone being Nuclear and renewables with Hydrogen to replace Coal plants and as energy storage would be a pretty decent idea.
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
@@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.
@@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
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
@@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
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 👍
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.
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!😢😢😢
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.
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.
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.
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.
@@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
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.
You’re smarter than the average bear 🐻
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
...yepp.... you're right...
True for now, but as the price of Powerwalls (generically) decreases, they will replace green hydrogen as a balancer of supply and demand.
@@lokensga no you need green hydrogen anyway. A) to replace gas and B) for steel plants.
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.
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.
Good luck with that one!
Everyone wants to help with climate change, but will not change any of their habits to do so
@@charlesswoape9128 agree. that s why i don't care anymore about climate change. this world and all the people can jump off a cliff
No thanks
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.
Exactly. Plus ice engines are only 36% efficient. Complete waste of expensive energy.
the ultimate problem with *any* alternative energy source
is that the development is being left, by governments at all levels,
in the hands of the old energy companies;
the very companies that have a vested interest in dragging out
the process in order to "maximize profits".
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.
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
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.
That's nice.
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.
Smells of Hindenburg
@@lesterhutchins1621oh no the combustion fuel actually catches fire? Whatever shall we do
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
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
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.
Exactly .. or like Manitoba .. we have Lake Winnipeg.. largest battery in the world 🤔😉😂
When you talk about using Hydrogen as a carbon-free renewable fuel and energy carrier, I think you also need to mention Ammonia. H2 and NH3(ammonia) can both be utilized as very potent forms of fuel but hydrogen in the form of ammonia is much easier to store and transport because it can be more easily kept in a liquid and it is more energy dense by volume than pure hydrogen.
It also already has a worldwide transport network, because we already require ammonia for fertilizer.
30% of global natural gas production is used to make hydrogen to make ammonia…
It is also a lot more toxic than hydrogen. Not necessarily a show-stopper, but should be taken into acount.
@@colindavidson7071 I remember seeing a report stating that incidents for both accidents and deaths regarding the transport and handling of ammonia vs hydrogen were actually around half (per unit of volume handled). The explosiveness and metal-fatigue causing hydrogen are serious concerns, not to mention the added cryogenic costs and risks when liquifying it.
Another interesting note is that ammonia leaks can largely be managed with the application of spraying water, as it is so soluble in water that you can basically pull it right out of the air by spraying water at it.
@@nolan4339 There are at least a dozen of viable methods to transport hydrogen, some of them are almost inert (such as carbon nitride, LOHC and metal powders).
The low energy content of hydrogen vs. that of gasoline has always been a "show stopper" for me.
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?.
If any fuel is used to produce a hot flame in air, NOX is produced. This would apply to hydrogen too.
a catalytic converter negates NOX doesn't
What abt separated oxygen ? , separated O can easily combine with O2 to form O3 which is not good at low level atmosphere....
Hey there! Could you specify your question, please?
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.
Why not just use the electricity from reactors directly?
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.
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.
Yes there is. FUSION. Period, end of story.
@@TheBandit7613 well go ahead and build a safe and efficient fusion reactor then and everything is solved I guess.
@@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.
@@TheBandit7613; I can't do FUSION, can you?
While H isn't going to be easy or inexpensive to create for some time, it's probably time we started moving towards production and usage. Fossil fuels aren't a renewable resource, and the products to create renewable energy haven't exactly been climate friendly (ex: old windmill parts in mass quantities that we can't do anything with, yet). Have to start somewhere, so now is as good a time as any. We currently have ways to separate H from other elements and that needs to continue to be researched and improved. Hopefully, we'll start looking at the climate situation from a standpoint other then the $$$$s. Eventually it will get less expensive, but batteries are creating a hazardous situation with lithium and being difficult to recycle and re-use. Will never happen in my lifetime, but there are going to be others who outlive me and are going to NEED a more climate friendly environment.
My friend who is a scientist in India has recently invented a method to produce Green Hydrogen. This method does not need an external source /electricity ( no electricity from Solar or Wind power) to produce Green Hydrogen. It can be produced in situ. So, you can produce it at the place where you want to use it. Waiting for some seed investors to take it off.
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" ;)
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
@@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.
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.
my company JMCC WING is moving into H2 production from our wind energy system (patented JMCC WING Generator) that has 25 major improvements over the 3 blade wind turbines which do not work (97% of the wind blows through them ... they were a pig with lipstick from the beginning never meant to work). The "WING Gen" is far more cost effective and environmentally friendly than covering the planet with short lived environmentally damaging solar panels. The major benefit is that the "WING" can scale to large sizes (engineering studies estimate 200 MW and more in a single unit). It also can be used to supply electrical energy to the eV car industry (yes there will be a balance between eVs and H2 but don't ask me to predict where all this will be in 10 years or even 2 years). My estimate is that in 10 years we will settle on 3 major forms of energy. Natural Gas - Wind (using the JMCC WING Generator) which will also produce large quantities of Green H2 at reduced prices. Other forms of energy will subside including the big three Nuclear Coal Petroleum. One note - economics and technology development should guide the movement and not climate change or government artificial goals and edicts. We are heading into a severe cooling epoch on earth so please tell the myopic climate people that there are other factors affecting climate that are far more influential than their claims of global warming.
One thing about Hydrogen that is not mentioned is its energy density compared to lithium-ion batteries, yes with today's technology close to %50 of energy is lost from electrolysis to being in the car but for the same weight liquid Hydrogen has 10 times the energy mass to lithium-ion batteries having the same weight
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
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!
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.
Personally, I think that we should focus on creating methane from renewable energy. The tech already exists for industrial storage and transportation of natural gas. We could use carbon in the atmosphere and water to build methane. Hydrogen is difficult to handle, and frankly it's greenwashing. The time it takes for the technology to develop will be time that fossil fuels continue to be extracted and pumped into the atmosphere. High temperature nuclear power reactors could also create hydrogen, or green methane without emissions.
_"The time it takes for the technology to develop will be time that fossil fuels continue to be extracted and pumped into the atmosphere"_
That's the point. The people selling hydrogen is the same people selling fossil fuels. See, it's connected.
Now if you can connect methane with fossil fuel too, maybe your idea have a chance.
I like this idea, but I like George Olah's idea of using methanol even better, since liquids are much easier to handle than gases.
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.
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.
Really, what makes this a great doco considering all the lies and half truths told?
2020 wasn't the first time a commercial sized plane flew on hydrogen. This actually happened in 1988 with the Tupolev Tu-155.
Interestingly, due to practical issues with hydrogen on aircraft the project switched to using natural gas instead. This is telling. Whenever engineers are allowed to use a future aviation fuel free from political constraints they choose methane. This was the case with Tupolev but also the case in the US with Lockheed in the Carson study in 1980 and again with NASA/Boeing "sugar freeze" in 2012.
Furthermore, studies have shown that water vapour released at typical cruise altitudes of commercial aircraft results in warming effects that are actually worse than emitting CO2. This is because it persists much longer at these altitudes. This ultimately should disqualify using hydrogen which would result in far more water vapour being emitted at these altitudes.
I think the future of medium and long haul aviation lies with net zero power to gas production (methane) and/or with carbon negative biomethane. The other alternatives are either too expensive, too energy intensive to produce, bad for the environment or completely impractical.
burning methane still produces about 65% as much water as burning hydrogen, so i dont think the water vapor from hydrogen is a big problem.
@@dr.nico99 or put another way, burning hydrogen increases water vapour emissions by 50% compared to methane. It's a massive increase. Grewe et. al. 2017 "Assessing the climate impact of the AHEAD MF-BWB" (pdf available online) shows the additional contribution from water vapour from a hydrogen fuelled aircraft results in greater global temperature change than the CO2 emitted from other fuels.
The authors conclude: "Clearly, a CO2 reduction is important, but a climate impact reduction requires addressing also contrail cirrus, water vapour and NOx emissions. As a result of the close cooperation between the disciplines, we found that the AHEAD aircraft fueled by LNG and bio kerosene, flying at FL 430, represents an adequate technology to reduce the climate impact and equivalent CO2 emissions."
While the idea worked on the Tu-155, it required a very large fuel tank that essentially took up a lot of the space in the fuselage, which defeated the idea in the first place.
I agree that hydrogen would be a terrible fuel if combustion is involved. I think a carbon-neutral version of conventional jet fuel would be a good near-term solution for trans-oceanic jet flight.
@@incognitotorpedo42 the problem with carbon neutral Jet-A1 and SAF is that they are prohibitively expensive. As the cost of carbon increases this will get worse. Airline business models simply can't tolerate paying much more than what they currently pay for fuel. Another solution is required for the long term.
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.
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 .
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......
Maybe just ridden the demanding pests?
@@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.
@@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.
My guess is that the net amount of water conserved after electrolysis and hydrogen combustion, is less than the amount of water at the beginning. If so, such water exploitation, over hundreds or thousands of years, would leave us with less water on the planet overall. Such a practice could, in the long-term, lead to much more serious problems than global warming.
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!
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.
Hydrogen is an electrical battery technology. Batteries are not energy sources.
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.
That's why ammonia will be used for transport and storage.
if you use solar cells to make it, it's green. of course you still have to recycle the old panels.
Hydrogen is renewable genius.
"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.
@@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.
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
😂😂😂
Perpetual aircraft motion is due to less drag n enormous momentum of aircraft.. We may stop fuel supply to turbine n run from previously discussed prototype of horizontal turbines installed all around fuselag to generate electricity n feed to shaft of turbines under wings.. As much gas is created due to explosion /burning of fuel/gas inside turbine.. As much air volume may be sucked by exhaust like fan mechanism at locations where byproducts gas is produced inside turbines.. Main concern is to create upward thrust due to high speed air flow from turbine to rear outside.. If extra energy is meeded, we may add extra generators at rear side inside aircraft
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.
It is a problem, but a solvable one. I'm personally not worried about it.
@@Sebastian_Gecko Solvable but not sensible. Cost for that is way too high. Use hydrogen in industry and thats about it.
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.
So you store and transport it as Ammonia NH3 or other “LiquidWind” products.
That is an irrelevant problem with correct storage it would be no issue.
What we've learnt from the EV boom is that most people aren't conscious of where their energy comes from. You can market a product like a shiny new BEV, but marketing the energy is more difficult, people don't really care.
Battery EVs are going to be a great value for commuting with a low "Total cost of ownership" once BEVs get to large scale production. Low fuel cost, scant maintenance, etc. The externalized costs like smog and climate change will not be tasked to the public like the goons in the coal and oil industry are currently doing. 🚗
They do care, they just get bamboozled by the lobbiests and crooked pols. They might care to dig more.
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.
I'm about to start my Masters in Hydrogen Energy Systems. I hope my studies throws more light on this "mysterious" tech.
The supply chain supporting "green energy" is heavily reliant on fossil fuels. Converting electricity to hydrogen that then goes to fuel cells is a dead end solution for most applications, since it wastes way too much energy, that would be best used directly or stored in a battery. While there is lots of talk about batteries, the raw material supply is currently short for the current demand for high efficiency products, much less meeting a 80 fold increase in use to power transportation. Plus the environmental issues associated with production and disposal/recycling. The technology needed to go ahead with truly green energy is a quality, cheap, easy to produce non-toxic battery. That might be discovered this year, or next century. Until then we are wasting resources and creating needless pollution and suffering trying to reach a goal beyond our technological grasp.
You make an excellent point. The idea that we’ll some how pull “green” anything out of our collective backsides is emotional diarrhea. If I can again put it indelicately, physics is a &itch! “Clean energy” is simply not clean. Solar panels, electric cars, batteries, windmills that are necessary ON A MASSIVE scale are going to require strip-mining enormous areas of the planet, mostly in undeveloped countries.
These “green solutions” are really about making millionaires into billionaires and making the wealthy elites wealthier and feel good about themselves at their cocktail parties. Fusion energy and the shorter range, new safer nuclear technologies have to be developed.
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.
Yup those are the real convos that struggle to be had.
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.
That Canadian facility run by Shell is NOT a "blue hydrogen facility". It's a bitumen upgrader, refinery and petrochemical complex.
08:06 What is the carbon footprint to put in place and decommission the solar and wind generation capacity?
🌞 Studies suggest that both solar and wind power have significantly lower carbon footprints over their lifecycle compared to fossil fuel-based energy generation. There are some issues that still need to be addressed still, we looked into them👇
"Wind power's unsolved problem": ua-cam.com/video/HzQShAlObn8/v-deo.html
"This is what's REALLY holding back wind and solar":
ua-cam.com/video/u-DsDuTceTo/v-deo.html
"How green is solar energy really?":
ua-cam.com/video/EWV4e453y8Y/v-deo.html
What ever happened to the steel tank hydrogen imbrittlement storage problem?
In my opinion the real flaw in the hydrogen economy is (and always has been) the scarcity of the Platinum Group Metals used in the only currently viable hydrogen fuel cells. There simply aren't any alternative catalysts which provide the same efficiency and longevity. We're talking about trading one non-renewable resource, with another, that is much more rare and expensive to obtain. The papers I've found on the topic suggest that it would require 100% recycling of all PGMs used today on top of future production to satisfy any large scale hydrogen fuel cell usage.
Not to mention, that the oxygen reduction reaction can't be properly catalysed by our current technology.
Yes this is the main issue. I'm disappointed that they didn't even mention the problem with catalysts in the video.
There are many Catalysts besides Platinum that can be used in a fuel cell. That is just another misconception. Hydrogen can bond with a plethora of metals and minerals. It just comes down to the correct chemistry and the reaction.
@@desertdan100 I didn't say there weren't any other catalysts. I said there aren't any that provide equivalent efficiency (performance) and longevity. All the alternative are inferior in one way or another.
Then use hemp stalks fed into a biodigester to produce cellulosic hydrogen to turn an electrical generator & store the electricity in inexpensive super-capacitors made using hemp bast fiber.
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?
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.
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.
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.
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.
Hydrogen embrittlement in metal.
It was covered in the documentary when they talk about Shell in Canada (huge percentage of leakage )
Artemis vibes
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.
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.
I do think that hydrogen is a way for some industries to use it as a source of energy. You did not remark in this video about Red Hydrogen that the Japanese have been working on. This may be the best way of producing clean Hydrogen for heavy industries and some forms of transportation.
good point, deceiving the ill knowing masses on clean fuel while hiding it's truly inefficient and dirty production process 🤔
It will always be more efficient to store electricity in batteries than convert it into hydrogen. But batteries are expensive and because renewable energies fluctuates a lot (sun, wind) hydrogen will be useful when there is an oversupply of generated electricity. Instead of shutting down wind turbines or solar farms the oversupply can be converted to hydrogen and be stored in a much larger scale than with batteries.
Batteries are expensive, but you're *assuming* that hydrogen storage will be cheaper (per unit of energy stored). I think you are wrong about that.
Batteries may be expensive today. But let the batteries from BEV come to the stage where they have lost 20% of their capacity - so in 10-20 years and batteries will become less expensive because these very same car batteries now can be used for another 10-15 years in stationary use. To run a electrolyzer at any kind of efficiency the amount of available energy must not fluctuate - it will even be permanently damaged if there isn't any energy to be converted.
The same as ethanol. All involved in this scam knew from the start that the trade off was no good and was just a scam. It all depends on which of your elected officials have what invested in where, who they owe favors to and why we should keep them in their current position.
Your argument is correct in the case of replacing fossil fuels for combustion engines especially as ethanol production would take farm land out of food production. Electric vehicles already perform better than these over hundreds of kilometres in most conditions so the future of ethanol as a fuel to burn is as limited as gasoline. Also, there is the possible scam of "blue" hydrogen as a front for fossil fuel producers to use as a stopgap during declining demand for their products. It is up to us to raise awareness and force elected officials go directly to the best alternatives rather than those that feather their nests.
What is the consumption of water to hydrogen production.?
What a great channel, I needed this for my class project
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.
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.
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.
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.
Just some points about hydrogen. Firstly, when implementing hydrolysis to make hydrogen, the water used has to be extremely pure. Sea water can be used but it needs to be de-salinated first, of course, which requires energy in addition to that used for the hydrolysis itself. Secondly, not all of the water used gets converted to hygrogen and oxygen - there's always some waste. This means that water ends up being a consummable to some degree which could pose a challenge in supply. Thirdly, if we burn hydrogen in the atmosphere as a fuel, the by-products are not just water vapour and energy. The atmosphere is 78% nitrogen - not a pure oxygen atmosphere by any means - so we get oxides of nitrogen produced as well as water vapour. These oxides are potent greenhouse gases. Incidentally, water vapour is also a greenhouse gas.
As efficiency improves hydrogen will become a staple fuel or internal combustion .Ffinding more compact forms of storage would be ideal or a closed loop electrolysis to fuel and water to fuel
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
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.
The absurdly low cycle efficiency is a killer considering the value of renewable electricity (losses from the electrolyzer, energy lost in compressing the stuff to absurd pressures or energy to liquify, and transportation infrastructure losses). In theory, we could pull C02 from the air and fabricate hydrocarbons from that to complete the carbon cycle. There is more hydrogen in a gallon of gasoline than a gallon of liquid hydrogen(!). Practical on industrial scales? No idea, but until we have a large increase in production and drop in price of non-fossil fuel electrical power, none of this make any sense. Thorium fission, fusion, and/or space solar on an immense scale will be needed first.
In CA, where we have proclaimed the end to ICE vehicles by 2035, We JUST finished a WEEK, where we were WARNED, with a FLEX ALERT, warning of possible rolling blackouts!
Ignoring the fact that we already generate so much excess SOLAR, at times, we must PAY AZ and NV to take OUR excess power off the Grid...
You wonder why their power is 50% of ours in CA?
But yeah, EV's are gonna be a FUN experiences...
Thorium sounds good, but I'm a little skeptical.
I don't think ELON is a total Uber genius, but the guy is pretty smart, and definitely has connections, so why isn't he or Gates (whose building conventional I think) not getting things ramped up Thorium?
The Gates info is from a interview from 2017, he talks about one of his companies building a rector in China. I guess I am assuming it's conventional, but I would have thought if it wasn't he would have said so during the interview.
Just based on the supposed ability of a Thorium reactor being able to "burn"/ or dispose of the radioactive waste the older conventional reactors produce, we have enough of that, to make a solution valuable even if it isn't scalable for power production, or has any other issues
It wasn't the Thorium process ability to "burn" high pressure water reactor waste (heavy or otherwise), it is the fact that Thorium is a relatively abundant element on Earth and the chemistry allows it to combine with Fluorine to make a salt that would be liquid with a low vapor pressure at operating temperatures that caught my interest. This would allow the radioactive part to be at room pressure, eliminating the high temperature, high pressure failure mode of water-cooled reactors. The containment vessels are trying to come apart like all high-pressure bottles. Reactors more so with the combination of high temperature, Neutron bombardment, and high consequence of failure. I agree that there is a great deal of development to be done to make Thorium a commercial power generation option. But it isn't a complete unknown either, LANL had a operating Thorium salt reactor in the mid 1960s, but as it didn't synthesize useful quantities of Plutonium, the concept had no military use and was cancelled.
The "small modular reactor" architecture may be useful, time will tell. The SMR concepts have ranged from water cooled, gas cooled (Brayton cycle), metal cooled, both fast and moderated Neutron along with and molten salt concepts. IMHO the molten salt and gas cooled Brayton cycle system make the most sense. At least the gas cooled reactors operate at pressures much lower than the water cooled systems and the mass of coolant and the energy of coolant release is much lower than the water cooled systems.
@@jedswift Understood, what I am saying is the guy was talking about venture capital money.
They look for "WHEN" am I going to get ROI!
As far as I know, this is the ONLY solution to the piles of waste we have already accumulated.
Thorium based power is one of many power sources, no matter the facts, some will still prefer Solar and Windmills, because it's easier for them to understand them.
Just sayin', when you have the "market" cornered, *you have the only solution* for a problem, it's easier to attract capital.
The main point to ponder here is the need for centralizing its production. Are there economies of scale to be achieved by producing H2 in one location & distributing it? Or will it be ok to produce it to the required volumes in places of consumption just like a portable genset? An industry or a ship or a train can have its production tailored to their consumption needs. Same goes for agricultural fields & so on.. Can someone explain what is the need to produce bulk in one place & transport H2 over to places either through trucks or pipelines? If solar power can be produced in each household for their needs, the same can be applied to H2 as well? In all, the objective must be to minimize H2's transportation & storage. There is also a need to find the quantum of energy produced for a unit of input energy in the case of H2.. If we know this ratio, say if it is 1:10, then the same H2 energy can be used to power further production of H2 without the need to look for other forms of green fuel. H2 can create itself & multiply - just like the seeds in a plant do for agricultural production.
Interesting. Living in a place with over abundant sun it would seem that using solar energy to recycle water into its gas components would make sense. I would love to hear what innovations are afoot. Surely it's not so simple but neither was harnessing nuclear energy.
Sun only workd for individual houses
It _would_ seem like solar is this saving grace, but look at the panels themselves and what it takes to manufacture.
Solar is not that good.
Nuclear energy is 20,000,000 more energy dense than diesel,not to mention solar, easiest way to make Carbon free H2 is pink H2 nuclear based, but green H2,and other ways are great too. But we don't want to ruin the environment with solar plants. Even vast dessert they don't cover with solar,it isn't reliable, much of utility solar in China isn't connected, they are still building coal, the best thing the Chinese do is an vibrant nuclear program, those plants really do displace coal, provide great jobs, are a millionth the size, and have much less waste than wind and solar.
Even hydro the Chinese have screwed up.
@@johnlocke_1 still rapidly getting better though, like a lot of green tech. that's what makes it so hard to predict what we'll use in a few decades time.
@@crouton3455 in a decade, we will be in such a depression that no new developments will be bothered with
A possible way to solve much of the issues addressed in this video might be the conversion of Hydrogen and CO2 into Methane. This can be done as a form of biogas upgrading. The CO2 fraction that is formed in biogas systems can so be removed resulting in a higher calorific gas and more gas. Methane has a higher energy content per volume then Hydrogen and can be used through existing pipelines.
Interesting research articles about this subject are:
Production of high-calorific biogas from food waste by integrating two approaches: Autogenerative high-pressure and hydrogen injection. (Kim et al 2021)
Recent progress towards in-situ biogas upgrading technologies. (Zhao et al 2021)
Interesting point but there is always loss when transporting gas so I think there would be a great deal of pushback on making one of the most hazardous gases
so expend energy to make hydrogen, expend energy to capture CO2, and expend more energy to turn it into methane, then burn it in a methane combustion engine.... you're throwing away about 90% of the energy as heat....
you'd be better off using the original solar or wind power used to make green hydrogen to charge a battery to power an EV, which is closer to 80% efficient....
@@xiaoka The CO2 is already in the biogas for about 40 to 20%. That's how the bacteria produce it. The conversion of hydogen with CO2 into methane is something that these bacteria do for free. This is one of the reactions that is naturally involved in biogas production. Very often this CO2 is removed in biogas upgrading plants in order to use it in household applications. By adding hydrogen (produced by electrolysis of water) the biogas can be upgraded to a Methane content of >95%. This would provide a new usage for hydrogen, makes upgrading from biogas to green gas easier, provide a battery funtion (grid stabilisation) for temporary and local abundances of solar / wind energy and decrease the consumption of fossil methane gas.
@@TOAOZuur Use electricity as electricity where you can (i.e. domestic or industrial) and make synthetic diesel where you actually need a high density energy store ( i.e. for vehicles). The infrastructure and vehicles already exist to use this fuel. You would, of course, need a large amount of energy to do all such wasteful conversions and the only method of doing that would be to build a big fleet of new nuclear plants. For a good example look at the Moltex Energy fourth generation reactor being built in New Brunswick in Canada - it's fuel is made from the nuclear waste from old style reactors so also solving that problem!
🎯 Key Takeaways for quick navigation:
00:00 🌟 Hydrogen is gaining attention as a clean energy source with applications in transportation and industry, offering potential solutions to reduce emissions.
01:37 💡 Hydrogen can be produced through processes like electrolysis and used in fuel cells to generate electricity, making it a versatile energy carrier.
05:16 ⚡ Green hydrogen, produced using renewable energy, is seen as a cleaner alternative to gray and blue hydrogen, which have significant carbon emissions.
08:57 🌍 Hydrogen faces challenges, including storage issues and efficiency concerns, making it important to find the right balance with other energy solutions.
11:38 🕒 The next decade will be crucial for hydrogen to prove its potential as a major player in the transition to a low-carbon future.
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One important aspect is missing in this video. Electricity from renewables is strongly volatile (fluctuating). The number of electrolysis-plants (or storage) that are necessary is given by the peak influx of renewables (strong wind and long cloudless summerdays). On the other side, there are long perdiods of lacking wind or solar (long nights in winter). So you need a huge amount of electrolysis plants, which are only operating a fraction of the days of the year and stand still in standby most of the time. This makes green hydrogen-production totally ineffective and too costly.
Hey Stephan! We tackle the issues with the electrical grid in this video 👉 ua-cam.com/video/u-DsDuTceTo/v-deo.html