The truth about hydrogen

  • Опубликовано: 9 месяцев назад

    DW Planet ADW Planet A
    подписчиков: 376 тыс.

    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.
    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?

DW Planet A +258
DW Planet A

What do you make of the hydrogen hype?

9 месяцев назад
Notti
Notti

Tidal turbines are more reliable. Tidal waves will always be there.

4 часа назад
richard senk (Beachwalker1985)
richard senk (Beachwalker1985)

more hype than reality. uses more power to make than it provides, And why not use our carbon based fuels that are cheap, reliable and plentiful?

15 часов назад
zeez
zeez

@Julian S dislike

17 часов назад
Max Boje
Max Boje

@Allen Barclay Allen uhhh and you think that hydrogen is different in that aspect to other gasses for heating in your home or fuel for your car?

3 дня назад
Allen Barclay Allen
Allen Barclay Allen

Well hydrogen is a great answer but it must be in transport as water or we're going to see the reenactment of the Hindenburg blimp. I've watched these government people I work for them for 33 years they're dumber than a box of rocks whenever they start putting hydrogen filling stations all over the United States get ready for the Hindenburg..!

3 дня назад
David Edward +36
David Edward

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10 дней назад
David Edward +1
David Edward

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7 дней назад
David Edward +1
David Edward

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7 дней назад
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Telegram..>>>...>>@samdeymon433

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8 дней назад
Henry Nathan +5
Henry Nathan

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10 дней назад
Henry Zachary walter +7
Henry Zachary walter

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10 дней назад
Mark Twain +2
Mark Twain

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!

6 дней назад
Doug C.
Doug C.

The focus on hydrogen should start with heavy transport, ships, trains and aircraft. The gap between batteries vs. hydrogen for light vehicles has been looked at for several years and found to be better served by batteries, not only for cost but safety. Hydrogen is dangerous in a vehicle crash, the weight of the structures needed to prevent explosions from accidents just add more weight. On heavy transport the additional weight for safety structure can be absorbed with little loss to cargo hauled.

23 часа назад
Yuval Milrad
Yuval Milrad

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.

10 часов назад
James Judge
James Judge

Good stuff--clear, well-written presentation. But hydrogen internal-combustion engine vehicles (HICEVs) were completely left out. Also skipped is the critical issue of hydrogen storage.

3 дня назад
AlexAlexAlex +311
AlexAlexAlex

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

9 месяцев назад
Rupak Shaw
Rupak Shaw

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

Месяц назад
BambinoAmericano
BambinoAmericano

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

2 месяца назад
Petri
Petri

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

2 месяца назад
dave kelly
dave kelly

@Dan d5500

2 месяца назад
The Ball +1
The Ball

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

3 месяца назад
John Wisdom
John Wisdom

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

4 дня назад
Clive Cooper
Clive Cooper

Enjoyed video, unfortunately it appears no one is thinking outside the box regarding this fuel. Green/Grey hydrogen is produced by electrolysis, l believe for electricity energy production made from fossil fuels could be a thing of the past within ten years throughout the world and very cheaply by comparison to other construction projects. Here is how, most countries are using existing fossil fuel power stations and trying to phase them out making for cleaner options. Why not build hydrogen production and storage facilities on these power station sites, use existing fuel to produce green hydrogen by electrolysis till you have stored three months supply, then switch the power station to run on green hydrogen, topping up the stored hydrogen production when the power station is not switched into the grid. Advantages net zero cost for fuel to run the power station. No major infrastructure or machinery costs as they already exist , only conversion and maintenance required. Ultimately surplus green hydrogen can be produced for road vehicles and other transportation as s being used already around the world. In the U.K. hydrogen is being introduced into the gas network this could be their production supply source. It is sad l have yet to here anybody make these suggestions C ACooper

17 часов назад
Nick Westby +1
Nick Westby

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

9 часов назад
Joe Mallia
Joe Mallia

I'm no expert, but wouldn't Hydrogen solve the problem of infrastructure where cars are concerned? We already have the infrastructure in place with petrol stations. How hard could it be to include Hydrogen supplies from these sites? Isn't our ability to harness solar power to produce Hydrogen improving all the time?

3 дня назад
Patrick Kools +5
Patrick Kools

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.

7 дней назад
Yeah
Yeah

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

13 часов назад
Johann Johann
Johann Johann

There's a reason, a very good one, that Hydrogen is Number 1 on the periodic table. Why it is the Number 1 fuel source for the Universe and stars. And why if common sense were to prevail, we humans would see the brilliance of hydrogen, and make it our Number 1 energy source for transportation to buildings and homes. Hydrogen is the answer to pollution caused by carbon based fuels while fulfilling our energy needs (along with electric motors). Just my opinion. But I know reality seldom see's the use of common sense.

2 дня назад
ZEROVIRO
ZEROVIRO

Blue hydrogen would accelerate import or extraction of fossil fuels. The world needs to get it right from the beginning and focus on green hydrogen which is only possible with huge availability of solar and wind energy. China has recently announced a large scale wind energy project 43.3 GW which is the right of scale of projects the world should focus on before thinking of hydrogen becoming as fuel of the future!

3 дня назад
Grant Jones
Grant Jones

It takes, currently🙄, about 38 pounds of battery to equal a pound of gasoline. Hydrogen must be stored at very high pressures. This requires a lot of energy just to do this. Electric and hydrogen powered planes do not have much range. Certainly there is room for improvement in our energy usage but the electric and hyrogen transportation thing is a fad that is emotionally and politically driven. I will be glad when we get realistic.

7 дней назад
cjcormier26 +146
cjcormier26

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.

2 месяца назад
a b
a b

@Cesco you are correct sir, so go start investing into hydrogen companies. Actually better start your own hydrogen related business you’ll be next Elon Musk. 😂

2 дня назад
imho
imho

@Alex Anderson this happens when you burn it...

5 дней назад
imho
imho

@Stuart Hirsch were those 2 using hydrazine or straight H2?

5 дней назад
imho
imho

@Cesco kitchen gas is methane.

5 дней назад
imho
imho

Hydrogen leaks held up the Artemis launch for 3 years. It's tricky stuff.

5 дней назад
GTExpressing
GTExpressing

To isolate Hydrogen to use as a fuel requires more energy input than the hydrogen offers at output. Hydrogen is a great energy store (battery) but it's not a new source of energy.

2 дня назад
Harald Bjerke
Harald Bjerke

Extraction and offtake, green hydrogen Electrolysis is crucial for fluctuating renewable electricity production and consumption. That in itself should be incentive enough. The resulting CO2 neutral hydrogen, oxygen and heat are commodities there are a great demand for. The world is desperately seeking an alternative to fossil fuel as an energy carrier. Hydrogen and oxygen can be stored and transported with existing technologies and infrastructure. The greatest barrier is ignorance. The general public needs to be informed and enlightened. Extracting H2 does not involve plugging into the wall socket to make it happen. It involves using renewable energy sources that lie there unused because infrastructure and grid capacity are lacking. Renewable energy is free and endlessly available. The cost consists in making it available to the consumer in a robust and usable form. H2 is just that…!! Sensible and sustainable, and let's not forget cheap. Compatible with natural processes.

23 часа назад
Zeitgeist
Zeitgeist

People always imagine creating the infrastructure to power private cars with renewables, e.g., replacing existing gas stations with hydrogen stations all over the country. This is crazy. Renewables like hydrogen should be used for, say, city busses that fuel up at a central "bus barn"'; therefore, only one hydrogen fueling station is needed. Think taxi cabs, school busses, city-owned vehicles, UPS vans, ambulances...any vehicle that is part of a fleet that is used within the city limits. Why am I the only person who is protesting against the replace-the-conventional-car mantra? It seems to me that this also applies to EV's. Why build electric charging stations all over the place? It requires a lot of infrastructure investment. Keep it simple, stupid.

8 дней назад
David Budd
David Budd

We should use electricity produced by the new breed of atomic reactors for the production of "greenish" Hydrogen and save our electricity from 100 percent renewable sources for grid use and battery charging. I would like to see a comparison of projected costs for a thorium fueled reactor versus the production of hydrogen from non-renewable sources. We could then make more intellgent decisions as to resource allocation for powering our planet while still seeking to reach our important climate change goals.

5 дней назад
Nate Shiz +90
Nate Shiz

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.

2 месяца назад
Cheesus Crust
Cheesus Crust

what a champ lol

9 дней назад
Sweden
Sweden

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

12 дней назад
Robert McKay +2
Robert McKay

Yeah sure

13 дней назад
bush2far +1
bush2far

The Acid never lie’s 🤟

2 месяца назад
Pete Busch +5
Pete Busch

That's an awesome story.

2 месяца назад
rlmrdl
rlmrdl

The first, and most intractable problem, is that pretty much ALL of these conversations begin with "our energy needs", then work backwards, trying to find ways to maintain business as usual. We need to take a leaf from the books of the last year when energy "needs" have turned out to be a LOT more elastic than some of us imagined. The first thing we need to do is squeeze out of those economies, the maximum amount of wasted energy. THEN look at how to produce for what is left, and what mix is needed. My home has a wood-fired oven with water heater, powered by trees I grow myself, cut down, till I replace it with electric, by a FF chainsaw. I also have an electric oven and water heating, powered mostly by solar cells on my roof and a Li-ion battery with grid backup. Even so, I have a natural gas hob that is part of the mix. And all year we move among those energy sources as the weather changes, literally shifting from one to the other during the day, switching electricity on and off, starting a fire, using the hob instead of the stove top. It takes work and awareness, all day, every day. THEN it takes technology.

9 дней назад
Bryant Whitis
Bryant Whitis

Yes and no why? I think it will take a combination of all natural resources to create one source with more of green energy in it. This will satisfy all energy sectors.

День назад
lostinmuzak
lostinmuzak

Renewable energy plus hydrogen as the storage has to be the most important solution for future. So it’s not renewables vs hydrogen but renewables + hydrogen.

2 дня назад
Mark Putnam +6
Mark Putnam

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.

8 дней назад
Crime ≠ Politics
Crime ≠ Politics

Solar energy is hard to store but it could be used for electrolysis of seawater to create hydrogen..? It would reduce the rise of the ocean levels while storing solar energy. Brine from use of seawater, e.g. in desalination, could be dumped in designated small salt deserts. Stacking mountains of salt doesn't harm anything as opposed to leading it back into the sea.

2 дня назад
Wobbigong Sound System
Wobbigong Sound System

The production calculations involved in identifying efficiencies in current fuel sources alternatives are incorrect. The long term environmental impact of zero emission green hydrogen becomes plausible when we comprehend the sun is not a finite power source, and the Earth is not a priceable resource due to its extremely rarified nature.

2 дня назад
SupernalOne
SupernalOne

It takes as much energy to hydrolyze water into hydrogen and osygen as one gets back from burning hydrogen - so we have to pay for it by burning fossil fuels to generate electricity to make hydrogen

7 дней назад
Mike Kelly +253
Mike Kelly

This is surprisingly well balanced. Youtube 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.

8 месяцев назад
Tony Lupone
Tony Lupone

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

2 месяца назад
CGR Phenomics
CGR Phenomics

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

2 месяца назад
whybother now
whybother now

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

2 месяца назад
The Ball
The Ball

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

3 месяца назад
fr89k
fr89k

@Ron Skancke What exactly is not true?

3 месяца назад
Kenneth Edwin Vogstad
Kenneth Edwin Vogstad

What about the fact as I understand it is that Hydrogen is very corrosive and it can escape through very very small openings in the storage tanks and that fact that is it very flammable!

3 дня назад
Paul Bade
Paul Bade

Perhaps the cleanest power for large cargo ships is nuclear. Nuclear power has already been proved clean, safe and reliable in American aircraft carriers. Over 60 years ago, the U. S. even built a civilian nuclear-powered demonstrator ship, the Savannah. Now there are companies building small modular reactors in the 60 MW range, which is about the right size to propel a typical cargo vessel. A reactor-turbine-generator-motor set would probably be smaller than the fuel bunker and engine in current designs.

5 дней назад
Wim Wybenga
Wim Wybenga

Green hydrogen, solar, wind, hydropower, depending on the locality.. What about cold fusion?

5 дней назад
Kent Colgan +175
Kent Colgan

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.

8 месяцев назад
blade
blade

@Ryouko Konpaku as the original video explains, and endless other resources back up, hydrogen has no role to play in the future energy landscape. For that matter neither will nuclear energy because of its long implementation times and hideous capex--even in Japan. Solar plus storage has been dropping in price exponentially and no other technology can keep up, not even wind. Just look at China's build-out of solar, and their statements that they will scale back investments in coal and nuclear plants as renewables become more prevalent, and you should get a good idea where the industry is going. The LCOE of solar plus storage is falling below 1/5 of the price of nuclear. That's pretty much the end of that, and "cheap" hydrogen.

Месяц назад
Ryouko Konpaku
Ryouko Konpaku

@blade I should've worded it as more economical or cheaper, it's efficient in a way that it doesn't cost much to generate hydrogen this way since it's from waste high heat. These new Gen 4 reactors operate at around 750-1000°C which is more than enough heat for multi-purpose use. As for urgency, these type reactors actually been in research for more than 2 decades now (Japan's HTTR plant has been operating as a test bed since the 1990s), it got restarted pretty recently (2020) since now the Fukushima issue from the public has died down, and it's a vital piece for Japan's hydrogen bet to be carbon neutral by 2050 as it can economically produce hydrogen for a low cost and provide electricity at the same time. It's not that far as a goal and Japan in particular is pretty invested on building them for commercial use here by 2030 as Japan can actually build these types of reactors in record time (5 years average at least here in Japan). For other countries there's also China with their own VHTR plants and it's also almost ready for commercial use on their own provinces this year if I recall, though it operates at lower temps (750°C) than Japan's design (1000°C). And if I recall the UK has recently announced joint cooperation on development using Japan's design for their own use as well by the 2030s.

Месяц назад
blade
blade

@Ryouko Konpaku electrolysis is the most energy efficient way to generate H2 (save for any catalyst-assisted methods we haven't discovered yet). While using waste heat in nuclear reactors may be convenient because it's, well, waste heat, it's not an efficient process per se. Also keep in mind that this waste heat isn't wasted everywhere. In European and Scandinavian countries this heat may be used to heat homes. Besides, as you said, this is still at the experimental stage, and building out any significant nuclear infrastructure takes decades because of the effort and regulations involved. We need green H2 for green industrial processes NOW.

Месяц назад
Ryouko Konpaku +1
Ryouko Konpaku

There's also the fact that with stuff like Japan's experimental VHTR type nuclear reactors, you could create hydrogen either via high heat electrolysis or thermochemical water splitting due the high temps these reactors operate. These are much more efficient in generating hydrogen compared to low temp electrolysis on green hydrogen since you don't use electricity but rather the waste heat from the reactors. These would have zero emissions as well as generating good yields of hydrogen from the heat from the reactors.

Месяц назад
Gareth McRae
Gareth McRae

@build Motosykletist What are you- a FLoTbot? Can you concede that energy that exits the party, is no longer in the party? It doesn't mean E has ceased to exist but that it is no longer there. Example: an old school kettle comes to the boil. There are boiling sounds and then a whistling begins. That sound energy does not somehow remain or return into the kettle- it dissipates. This mechanical kinetic energy is both useful (the whistle alerts the user) and useless (the rumbling boiling sound). It's about efficiency.

2 месяца назад
Not Woke
Not Woke

Hydrogen is the only viable option for Australia. Toyota & Hyundai recognize this & have cars in production to meet the needs of the Australian public.

3 дня назад
PS Paul Stewart ~ Interviews and Inspirations +2
PS Paul Stewart ~ Interviews and Inspirations

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

10 дней назад
swissguyflying +203
swissguyflying

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.

9 месяцев назад
Luca Della Sciucca
Luca Della Sciucca

@B irrelevant

Месяц назад
B
B

@Paul Sacco no

Месяц назад
B
B

@Luca Della Sciucca still needed for steel etc

Месяц назад
Christopher Treacy
Christopher Treacy

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

3 месяца назад
John Mark Agosta +1
John Mark Agosta

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

3 месяца назад
Blue Cube (PCS) +2
Blue Cube (PCS)

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.

9 дней назад
Coyoteaus
Coyoteaus

no to hydrogen unless produceded from access solar and wind production that can consumed and can not be alternatively stored.

8 часов назад
Anders Bergmann
Anders Bergmann

Energy delivery/density is very important. If you have a car that gets 30 MPG, try to imagine you squirting a stream of gasoline 30 miles long. It would likely be 1/8 the thickness of a human hair. Please find another source of energy able to do that. One gallon of gasoline weighs approximately 6.8 pounds. Just think about it... 0.226 or 3.6 oz to travel One Mile. How about developing the 6-cycle engine, which utilizes the expansion of water molecules to generate power while reducing cooling requirements thus increasing efficiency.

3 дня назад
peter c
peter c

Hydrogen is only viable if you have abundant production of electricity. And therefore you need nuclear power because windmills and solarpanel can't deliver that uninterrupted. In the winternights without wind you have.........0 KWh of electricity. Thus, where are they going to get that necessary electricity to produce hydrogen with nuclear power? Exactly, with fossil fuel. Last week we had 3 succesive days without wind (windturbines delivering 0KWh electricity) and the sunrise was around 8 am and at 17:00 it was already to dark to produce one single electron with solarpanels.

День назад
james stanley +15
james stanley

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 👍

3 месяца назад
GB +2
GB

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.

2 месяца назад
Arthur Kineard
Arthur Kineard

Why do people not talk about hydrogen as a store of solar and wind energy. Make huge solar farms that produce more energy than is need during the day, capture the excess output by making oxygen and hydrogen. Now you essentially have propetial clean energy. Will there be technical issues to solve? Sure. But certainly not insurmountable.

3 дня назад
Carmel 721
Carmel 721

Where did you get your efficiency numbers? What you’re saying is just blatantly completely not true. You’re saying that Taking renewable energy from solar and wind to extract hydrogen from water, then transport to fueling Stations and then to a car where this hydrogen will be used to create electricity is less efficient than charging a battery electric vehicle? In order to charge a battery electric vehicle, you have to build a battery big enough to give you a reasonable amount of range. That battery production already produces more emissions than the production of a hydrogen fuel cell vehicle plus its entire life cycle. Also, energy to recharge batteries doesn’t come from renewable production because most battery electric vehicles are charged during the night which means we have to burn fossil fuels to recharge them. So you have to extract either coal or oil from the ground then refine it then burn it in non-efficient ways then produce electricity then charge batteries. Other than that, the time efficiency on battery electric vehicles is ridiculous. The only commodity we have in life is time and if you have to spend it waiting an hour for a battery to charge instead of just fueling your vehicle with hydrogen in a matter of three minutes, you have become 20 times more efficient with your time. Battery electric vehicles are completely non-renewable, we will run out of natural resources to make these batteries which are completely non-recyclable. The whole idea of having and using hydrogen fuel cells is to bypass the need for a battery which is inherently non-renewable and non-recyclable. You could even have your own hydrogen electrolyzer in your vehicle producing hydrogen while you are in sunlight; parked or driving.

4 дня назад
Miguel Bustos Vergara
Miguel Bustos Vergara

if you do it from sun energy all the problems you mention are solved

13 часов назад
Armstrong jonathan +45
Armstrong jonathan

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.

3 месяца назад
peter slater
peter slater

I live in the driest continent and driest state and driest capital in the world. The idea of producing hydrogen from water for Australia in my opinion is ludicrous and folly. The SA Govt spent millions on a desalination plant and not one litre has been produced. Water is valuable resource and people have realised this in past but forgotten about the drought's and now investing hydrogen production. Seems to me there is a disconnect. I also lived in interior of Australia and know how precious water is, as most Australians never venture from the coasts to realise how fragile this continent is. Let's us take a holistic approach to energy because I can tell you, good useable water is becoming the rarest commodity on the planet and we should use WATER wisely.

5 дней назад
Tacitus
Tacitus

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

23 дня назад
Euan Dykes
Euan Dykes

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

Месяц назад
Chris Edwards
Chris Edwards

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

Месяц назад
Rafa Nadir
Rafa Nadir

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

Месяц назад
Izabela M Sztuka +2
Izabela M Sztuka

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

Месяц назад
Marcelo Cerveira de Paula +28
Marcelo Cerveira de Paula

Since I learned about fuel cells in my master degree in the early 2000's I truly believe that the solution to the energy production/consumptiion is to find local green solutions that apply to each market or each country. Green Hydrogen is certainly a good solution to some kind of transportation and to some countries. The challenge is to find the right demand for this beautiful solution.

2 месяца назад
Jephro Kimbo
Jephro Kimbo

@Seafox0011 scientist and ENGINEER that happens to know a great deal about energy and most especially THERMODYNAMICS! energy is NEVER created NOR destroyed it is only TRANSFORMED from one form to another with HEAT being the lowest form of energy.

Месяц назад
Seafox0011
Seafox0011

@Jephro Kimbo Oil worker?

Месяц назад
Jephro Kimbo
Jephro Kimbo

@B WRONG! hydrogen production on an industrial scale is NOT cost effective. it requires MORE energy to make than it produces. get an education into BASIC CHEMISTRY AND PHYSICS and try again! hydrogen only has at best 40% of the energy capacity of hydrocarbons such as gasoline, diesel and methane.

Месяц назад
B
B

@Jephro Kimbo LOL green hydrogen is 100% cost effective. Its the future.

Месяц назад
Mabelle Ol
Mabelle Ol

@Jephro Kimbo Thank you... tha's the reality...many maker for a few corporations 🤮 sorry Australia... you got the wrong govrrment🥸

Месяц назад
Kelly Quinn
Kelly Quinn

A sustainable and eclectic approach to our energy needs because we have many different levels of consumption from watch batteries to cities and entire countries... Perhaps it's about friggin time we got our scattah together to build global water and power grids??? Geez, we're on this tiny tiny tiny little rock to all intents and purposes it's upto us and us alone. The human corporation has the potential... I live in hope 🐒🎈

6 дней назад
Mark Neeleman
Mark Neeleman

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

Месяц назад
Jason Brown +11
Jason Brown

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.

4 месяца назад
Paul Bedichek
Paul Bedichek

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

2 месяца назад
Jason Brown +1
Jason Brown

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

2 месяца назад
GB
GB

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

2 месяца назад
Fred Schnerbert +4
Fred Schnerbert

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

2 месяца назад
dave u +2
dave u

It would be the most expensive steel ever produced.

2 месяца назад
FatheredPuma81 +70
FatheredPuma81

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

2 месяца назад
Niles Butler
Niles Butler

Nuclear is far too expensive. At current LCE evaluations, nuclear fission plants come up with four to six times the per-unit cost of renewables - one can pay a lot of storage solutions from that production price difference. Also the construction time is loooong, often over a decade, and it binds a giant amounts of initial investment for at least five decades. And ultimately makes economies highly dependent on a very few worldwide fuel producers, russia top amongst them. And europe recently experienced how tricky it is to be dependent on russia for energy needs. And all that is not even touching on the long-term waste storage and catastrophic failure potential topics, only economy and geopolitical ones.

6 дней назад
Peter Matthews +1
Peter Matthews

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

9 дней назад
Peter Matthews +1
Peter Matthews

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

9 дней назад
Waqas Ahmed
Waqas Ahmed

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

19 дней назад
kero pnw +2
kero pnw

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

2 месяца назад
John Stride
John Stride

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.

6 дней назад
Jacques de Molay
Jacques de Molay

Nothing wrong with neutralised protons !!!

4 дня назад
derek crymble
derek crymble

WOW ! Too much misinformation here . Container ships with engines of one hundred thousand + horse power ARE the most fuel efficient vehicles on the planet . They get ONE THOUSAND MILES TO THE GALLON , PER TON OF GOODS SHIPPED . Say it slowly . This is not bar-room talk . There is a lot more wrong in this vid. But I'm not going to waste my time .

14 часов назад
Akshay KR +12
Akshay KR

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.

8 месяцев назад
Thomas Maughan
Thomas Maughan

"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.

3 месяца назад
fred jones
fred jones

Hydrogen is renewable genius.

3 месяца назад
Drake Koefoed
Drake Koefoed

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

3 месяца назад
Yiori
Yiori

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

8 месяцев назад
Carl Snorge +1
Carl Snorge

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

2 месяца назад
Hasan Mahbub-ul Karim +9
Hasan Mahbub-ul Karim

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

Месяц назад
David Lawrenson
David Lawrenson

It takes exactly the same amount of energy to turn water into its constituent elements of Hydrogen and Oxygen as is produced by burning it. No amount of increased efficiency is ever going to change that fact. Therefore there is never going to be a gain unless the electrical energy is very cheap and cannot be utilised for anything else. When is electricity going to be cheap?

8 дней назад
Alex Anderson
Alex Anderson

Green hydrogen doesn't exist. Only hydrogen produced by electrolysis does. If you use electricity from solar to manufacture hydrogen then that doesn't change the hydrogen. Can you please stop using this retarded language. Science is not marketing. There is only one hydrogen atom when we do not include isotopes.

8 дней назад
Ulriko F. +3
Ulriko F.

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

12 дней назад
Jeff Hagen +32
Jeff Hagen

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.

2 месяца назад
Doug Sagal +1
Doug Sagal

My friend it is that simple =with solar/ wind (Temperature pressure differential )/ phase change-where you can flip hot to cold and create electric - example Tesla turbine then using it for hho or other hydrogen products that has many other uses- example look up browns gas how simple it is to make and it’s many uses = it can be done in the backyard = the more individuals that get with the project the quicker the problems will be solved = the main thing needed is to do by the do method

3 дня назад
David Lawrenson +1
David Lawrenson

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

10 дней назад
Kamalakrsna
Kamalakrsna

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

23 дня назад
David H
David H

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

2 месяца назад
stop censoring me
stop censoring me

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

2 месяца назад
Gerard van de Ven +5
Gerard van de Ven

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

Месяц назад
Itsgottobesaid
Itsgottobesaid

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

17 дней назад
mofomartian
mofomartian

The problem with this analysis is it sees everything through the lens of "Carbon Emissions." Hydrogen is a viable energy source because it's abundant, has a high energy density and it's an incredibly efficient combustion source.

6 дней назад
Keiko & Kenzie Sirasta +4
Keiko & Kenzie Sirasta

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

Месяц назад
Lester Hutchins
Lester Hutchins

Smells of Hindenburg

18 дней назад
Richard Anderson +5
Richard Anderson

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.

2 месяца назад
Hojkontot
Hojkontot

Obviously hydrogen should be used to store energy when and where energy is abundant. For example from solar energy. I just read about a Swedish scientist/entrepreneur who made a pilot project at his own home. Being completely self sustained, heating his 500 square metre villa from solar energy converted and stored in hydrogen form in the summer, then converted back to electricity and used to run his geothermal heating system in the winter. That is in Sweden, where you need heat at least 8 months a year. There is no where near possible doing this with batteries.

4 дня назад
J E
J E

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.

4 дня назад
Uber Donkey
Uber Donkey

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

21 день назад
Damien LIEBER +67
Damien LIEBER

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

9 месяцев назад
B
B

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

Месяц назад
B
B

@Michael Davison yes

Месяц назад
lokensga
lokensga

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

2 месяца назад
lokensga
lokensga

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

2 месяца назад
Dan +1
Dan

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

3 месяца назад
Rajesh Krishnamurthy
Rajesh Krishnamurthy

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

9 дней назад
Jordan Eastern +1
Jordan Eastern

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

2 месяца назад
Ladislas C
Ladislas C

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

2 месяца назад
oldschoolguy +2
oldschoolguy

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

2 месяца назад
Kevin Heerema +18
Kevin Heerema

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

7 месяцев назад
Karl Günter Wünsch +2
Karl Günter Wünsch

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

5 месяцев назад
Douglas Firth +1
Douglas Firth

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

21 день назад
G Bro
G Bro

Reminds me of Mad Max beyond thunder dome "where ever you go there you are"

3 дня назад
Scott Strawbridge
Scott Strawbridge

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

2 месяца назад
Bob Wrathall
Bob Wrathall

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.

2 месяца назад
Socially Distant +139
Socially Distant

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.

7 месяцев назад
Andy Grace +1
Andy Grace

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

2 месяца назад
Larry
Larry

@Brian Don't forget Afghanistan

3 месяца назад
user936
user936

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

3 месяца назад
Niles Butler
Niles Butler

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

3 месяца назад
user936
user936

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

3 месяца назад
Peter Heeney
Peter Heeney

Climate crisis never been so cold in my life?

19 часов назад
chris dyer +4
chris dyer

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

2 месяца назад
Shyamtanu Banerjee
Shyamtanu Banerjee

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

2 месяца назад
Anvil Dragon +5
Anvil Dragon

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.

3 месяца назад
Mark Twain
Mark Twain

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.

6 дней назад
Josi Dasilva +2
Josi Dasilva

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

3 месяца назад
David Edington +21
David Edington

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.

7 месяцев назад
B
B

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

Месяц назад
lokensga
lokensga

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

2 месяца назад
Dan +2
Dan

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

3 месяца назад
KaosKronosTyche
KaosKronosTyche

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

3 месяца назад
Open your eyes +2
Open your eyes

You’re smarter than the average bear 🐻

3 месяца назад
Gale Rauschenberger
Gale Rauschenberger

How about Geo thermal energy? I don't see very many folks talking about the new closed loop systems. It sounds good but I bet you can find something wrong with that, too.

День назад
DW Planet A
DW Planet A

Hi Gale, we have done a video about geothermal energy before. You can watch it here: https://youtu.be/c7dy0hUZ9xI 🙂 🌱 🌍 Let us know what you think in the comments section.

День назад
Ken Bellchambers +2
Ken Bellchambers

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

2 месяца назад
B
B

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

Месяц назад
B
B

Best idea so far.

Месяц назад
Wes Kaminski +1
Wes Kaminski

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

2 месяца назад
Tom Donahoe +9
Tom Donahoe

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

3 месяца назад
legacyofpop
legacyofpop

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

Месяц назад
B
B

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

Месяц назад
Jephro Kimbo
Jephro Kimbo

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

2 месяца назад
legacyofpop +2
legacyofpop

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

2 месяца назад
David Almeida +3
David Almeida

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

2 месяца назад
Mark Twain
Mark Twain

We are going to need hydrogen technologies to colonize the Moon, Mars, Titan and so on. This may be our future after all!

6 дней назад
Ryouko Konpaku
Ryouko Konpaku

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

Месяц назад
Ian Cooper
Ian Cooper

Good presentation. One source of hydrogen is in oil deposits. Research has been done were the in situ oil deposits were warmed. This resulted in the hydrogen separating from the oil and rising to the surface of the oil. This then removed from the oil deposits. The biggest issue is how transport the hydrogen to storage as it is very combustible.

8 дней назад
ushoys +2
ushoys

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

2 месяца назад
gascal018
gascal018

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

Месяц назад
Jephro Kimbo
Jephro Kimbo

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

Месяц назад
Sachin Sashital +24
Sachin Sashital

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.

4 месяца назад
Andy Grace
Andy Grace

It is a big problem, but handling the compressed hydrogen is a more serious issue. The energy expended to electrolyse it from water then compress it to ultra-cold gas or across a phase change to liquid is truly massive. You immediately lose much of the benefit of the fuel. Then there are the safety factors of people putting it in their cars. Potential cold burns refuelling, explosions in air if any serious leaks. Ask NASA how dangerous compressed H2 can be.

2 месяца назад
Richard O'Keefe +1
Richard O'Keefe

Hydrogen can escape quite happily right through some grades of steel. Other grads of steel trap it, and that's worse, because then the steel gets brittle and one day fails catastrophically. This is why people investigated working with liquid hydrogen, but of course keeping the hydrogen that cold adds lots of weight and uses energy. I was a big fan of the hydrogen economy when I was an undergraduate, back when we were all wetting ourselves of global cooling and the glaciers coming back. But then I learned some chemistry and some physics. Speaking of steel, "ordinary" steel is about 1% carbon by weight, so coke isn't going to go away in steel-making.

2 месяца назад
Batata Foda 🇷🇺
Batata Foda 🇷🇺

The world keeps on driving itself towards total war, this problem will only be solved through violence.

2 месяца назад
Michael Schulz +1
Michael Schulz

Hydrogen is stored in water

2 месяца назад
Jared R +2
Jared R

@Van Van It is very sensible. More sensible than electric cars.

2 месяца назад
Penguin King +2
Penguin King

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

2 месяца назад
Joe Delaney
Joe Delaney

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

Месяц назад
Van Van +5
Van Van

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

2 месяца назад
Fred Schnerbert
Fred Schnerbert

Oh, it's the big Oil Q folks...

2 месяца назад
darkhorse2reign +2
darkhorse2reign

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

2 месяца назад
Rajesh Krishnamurthy
Rajesh Krishnamurthy

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

9 дней назад
Pranav Vaidik Dhulipala +9
Pranav Vaidik Dhulipala

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

9 месяцев назад
glynnec2008
glynnec2008

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.

6 месяцев назад
Salamander
Salamander

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!

8 месяцев назад
Michael Lorton
Michael Lorton

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

15 дней назад
Dave Kiave +1
Dave Kiave

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

2 месяца назад
Parr Snipps
Parr Snipps

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

9 дней назад
Bill Thomas +1
Bill Thomas

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

2 месяца назад
TOAOZuur +10
TOAOZuur

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)

3 месяца назад
R Edmunds +1
R Edmunds

@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!

3 месяца назад
TOAOZuur
TOAOZuur

@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.

3 месяца назад
xiaoka +1
xiaoka

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....

3 месяца назад
Daniel Hardwick +1
Daniel Hardwick

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

3 месяца назад
timbo w +10
timbo w

This is a good piece. You mention that for passenger cars the battery option makes sense but it only does so in urban or reasonably densely populated areas. In larger sparser areas (eg Australia) there simply isnt the electricity distribution network to allow adequate charging stations to be built. Think about it. In peak tourist times (eg school holidays) some very remote areas get a lot of visitors. Having to wait 20 minutes to do an 80% recharge is kind of acceptable BUT this means having a charging station that can charge, say 10 or 20 vehicles at a time (probably more). This in turn means your cables into tharging station will need to be capable of carrying 1000's of amps. As I said, this is great in an urban area but when you are 1000km away from the nearest power station the cost of setting up that kind of tranmission infrstructure is simply uneconomic. And this is where hydrogen or limited fossil fueld supplies still has a place

2 месяца назад
imho
imho

Did you know that recharge stations exist on the Nullarbor? 2 44gall drums of oil that run a generator. You plug your EV into that. Apparently the oil used is leftover from the local roadhouse kitchen. Now queue up.

5 дней назад
John Colvin
John Colvin

@Robert Wilber : Ouch! 🥴👍

22 дня назад
Robert Wilber +1
Robert Wilber

@John Colvin I expect it will be street crime

22 дня назад
John Colvin +1
John Colvin

@Robert Wilber : Wellll.... quite a few of the kids that played with YoYo's went on to create amazing things. Tell the phone-app programmers they can't have electricity, and you will be amazed at what they come up with! 😉

23 дня назад
Robert Wilber +3
Robert Wilber

Cost? Where will you get the materials? You think all the kids studying programming phone apps are going to build power systems? 🤣🤣🤣

23 дня назад

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