The Truth About Hydrogen's Dirty Problem - Green Hydrogen Explained

The Truth About Hydrogen's Dirty Problem - Green Hydrogen Explained. Go to brilliant.org/Undecided to sign up for free. And also, the first 200 people will get 20% off their annual premium membership. What is green hydrogen and how does it stack up against other renewable options? And what if I told you there’s a solar cell that can make hydrogen directly from the air? Let’s explore green hydrogen’s booming potential. Yeah, I made an explosion joke.
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[@UndecidedMF]

So what do you think of green hydrogen? Is it an essential part of our fossil fuel free energy future? And if you liked this video, check out "Is Geothermal Heating and Cooling Worth the Cost? Heat Pumps Explained" kzbin.info/www/bejne/hnqXZqyLnbqKnc0

[@vickidianacoghlan8946]

I think your pretty hot for a geek. Just saying.

[@I_killed_that_beard_guy]

It's good

[@psychosis7325]

I think in the near future green hydrogen is going to play a huge part in global transit/freight but I think that is where it will stay for the most part for a good while as that is where it is best suited and easiest to deploy having ports near sea water just needing excess power from renewables and hopefully also fusion soon. Would be great to hear your opinions on and maybe see an episode about Aerosols. They seem to get overlooked a lot and lots of people talk about a fossil free future, but I think in the not too distant future we will see fossil fuels coming back into play with a new role as we are somewhat dependant on the aerosols they produce and regionally they play strong roles in maintaining habitats and such for animals that we are still learning about and I do not think it will be long before we hear about something being detrimentally affected by the loss of aerosol production by a city going green. It actually worries me that so many are anti fossil fuel and are pulling so much money/funding away from research and development of cleaner fossil fuels that we now and in future may rely on as a part of or total system even if it is and needs to shrink. earthobservatory.nasa.gov/features/Aerosols p.s.... G'day from Down Under ;)

[@sigismundsulzheimer5512]

Hydrogen will play a huge and essential role in addressing decarbonization. Especially in those applications where goods (or people) have to be transported over long distances without emissions. And also in those applications where sufficient energy must be available to supply auxiliary power units with electricity, such as in trucks, buses, trains, ships, commercial vehicles, construction machinery, airplanes and many more. In these applications, transport vehicles powered purely by batteries quickly reach their limits because the batteries are very heavy and run down relatively quickly. A very fascinating method to produce green, i.e. clean hydrogen, is photosynthesis with bacteria. Universities, scientists and researchers all over the world are intensively researching special bacteria and algae cultures that split water into hydrogen and oxygen with the help of sunlight (photosynthesis). One of the most promising concepts is the so-called "Powerpaste" by a German research group at the Fraunhofer Institute, which uses water and magnesium hydride to produce hydrogen - in a reusable cycle. Powerpaste allows hydrogen to be chemically stored at room temperature and ambient pressure and released as needed. The interesting thing is that this paste is in a cartridge and is not under pressure, so it is not liquid and not gaseous. Water is then added to the paste from the water tank, resulting in gaseous hydrogen. The quantity is adjusted to the hydrogen demand of the hydrogen fuel cell. To all this, it must also be mentioned that hydrogen fuel cells provide two types of energy, electric power and heat. The heat I need to air-condition passenger compartments, houses, apartments,... www.fraunhofer.de/en/press/research-news/2021/february-2021/hydrogen-powered-drives-for-e-scooters.html kzbin.info/www/bejne/qJ-3oWaGl72tl5o

[@IMGreg..]

@@vickidianacoghlan8946 Anyone have a buck of cold water for Viki? lol

[@mackfisher4487]

There is no simple answer to complex issues, only through diverse innovative engineering will we conquer our energy problems, thank you for bringing some of those to my attention.

[@kurtisklein2682]

I am stealing this. "only through diverse innovative engineering will we conquer our energy problems" perfect way to say it. There is no silver bullet we need an all in approach to the energy sector.

[@kurtisklein2682]

@George Mann The issue with Nuke power is not what it can do on paper (it's a fantastic option if we would/could do it). It is overcoming a societal issue of acceptance. People likely would rather spend the billions to takes to make a nuke plant on something they perceive to be "greener" and "safer".

[@justinmallaiz4549]

Nah, more like: There are complex answers to simple issues, because of innovative and diverse financial motives .. Tbh - I can't believe we're still going on about the Hydrogen pie in the sky.

[@Javadamutt]

@@kurtisklein2682 We are seeing companies produce smaller and smaller reactors that can and will drive down cost. A properly managed nuclear program could very well be the solution and not as difficult as people think. You are 100% on the money tho, Public opinion is not gonna change and the government for one reason or another with the lobbying of oil companies make that change even more impossible to happen. Between that and Governments thinking even more short term or focusing on non issues I can't ever see nuclear being a thing in the energy discussion. Heck when the "Green" parties don't even support it.......

[@deadward_8203]

Use less energy is pretty simple

[@davidtee5367]

Never apologize for puns. You don't choose the pun life, pun life chooses you.

[@Robert_McGarry_Poems]

Punny, it's like when a pun and joke accidentally mix in unexpected ways.

[@scienceisall2632]

Lol

[@niphotwala188]

Why do people even apologize for puns in the first place?

[@anxiousearth680]

@@niphotwala188 Questions we must forever punder

[@IamtheDill]

Alot of things being thrown at the wall to see what sticks...but that's a good thing.

[@SirHackaL0t.]

I’m surprised they didn’t have a solar freakin’ roadway to make the Hydrogen.

[@ultrastoat3298]

@@SirHackaL0t. solar freaking roadways is match made in heaven for the hydrogen economy. Two big scams converging into one giant one.

[@Akash.Chopra]

Unless it's gum, that can be a mess 😊

[@Meton2526]

What's an Alot ?

[@SupremeRuleroftheWorld]

@@ultrastoat3298 nothing a couple batterizers cant fix...

[@patreilly6826]

I used to work in a chemical plant that made Hydrogen as a waste product from electrolysis of Salt Water. The hydrogen was gathered from the the Cells into a large pipe header and sent to a building with two water ring compressors. It was pressurized and sent to two other processes where it was used to produced acid and an enrichment for another product. The rest was sent to vent stacks to be dispersed to the atmosphere. The two biggest problems with this gas is it is such a small molecule that it will leak out of EVERY flange or connection the other is it has a very low explosive limit at low concentrations. The first problem of the flange leaks caused the hydrogen to accumulate inside the compressor building till it reached the explosive limit then it would explode. This was happening even though the building had ventilation fans. This building had the metal "Skin" blown off twice in six months. After the second explosion we just left the skin off and the building was basically just the support structure for the equipment. In a cold weather environment this meant we had to insulate and heat trace everything to prevent it from freezing. The low explosive limit was scary because one day during a wet snow storm the static electricity from the snow hitting the 48" steel vent stack caused the stack to light off and start burning. Exciting next hour does not do it justice. We had to shutdown the whole process plant without blowing up the hydrogen system. One other problem is Hydrogen embrittlement of just about any Stainless steel or steel product. This causes cracking and line failures in a system that is already prone to leaks. Trying to store this slippery molecule is a real challenge and John Q public is not going to be happy when hydrogen powered cars tend to go boom with little warning.

[@cmac999]

Would you say the answer would be mixing all of the available green options, for example you said hydrogen cars could blow up so in that case we don't go down that route and only use it in certain industrial applications?

[@paulgrant7949]

Always informative and very well articulated! Well done Matt! Keep up the great work!

[@andrewcbartlett]

Hi from the UK. Thank you for the excellent video. The future is bright.

[@martin096]

Hey also from UK. I really hope they bring the lagoon project to life. We have the 2nd fastest tidal River in the world and we should definitely be harnessing this energy.

[@ericbullock6553]

This is awesome , your voice keeps me engaged! Also very informative. Thank you

[@gumboe2007]

Great content Matt, keep up the good work

[@tiesbakker3820]

The video is quite informative about production of H2, but I do miss the storage part. This is as far as I know the main concern for its feasibility as a general fuel. Of course hydrogen is used today. for certain applications and making it renewable is important, but the link from renewable creation to broad utilisation does skip over the quite significant storage problem.

[@Tore_Lund]

Storage exceeds energy density of Li-ion 5 times over with fuel cell efficiency included. The problem is that metalhydride storage is costly. High pressure tanks is not the way to get sufficient range in vehicles. However, the rare earth catalysts needed for metalhydride tanks are somewhat scarce, but not to a greater extend than raw materials for batteries or super magnets are already. So H2 storage is where batteries were before an industry went all in on manufacture. You can buy turn key fuel cells and MH storage for boats, at around twice the cost of a Li-ion battery bank of the same capacity, so we need a 90% cost reduction to beat Li-ion batteries, i.e. 5 times better and 5 times cheaper.

[@alanmay7929]

Companies in Germany and around the world habe been working on a better hydrogen storage solution

[@SupremeRuleroftheWorld]

@@Tore_Lund and you are still ignoring the insane efficiency losses with using hydrogen.

[@mandernachluca3774]

@@SupremeRuleroftheWorld Wich does only occure for one of the many ways we can store hydrogen. You are thinking about pressurized tanks, however, there are other technologies like LOHCs, Hydrite tanks, paste forms and others that have higher conversion efficiency.

[@SupremeRuleroftheWorld]

@@mandernachluca3774 still ignoring the losses in creating the stuff, moving it, convertin it back to usable work and let it work better and cheaper then what we currently have.

[@atohms]

Stoked you looked into my link towards the solar hydrogen panel! 🤗

[@darnellgranberry9204]

Love your videos Matt. Keep up the great work!

[@UndecidedMF]

Thanks! Will do!

[@xiaowei1]

Hi Matt, this sounds all very interesting, i like your videos, and i enjoy the content, but i am quite skeptical of a few of the things raised. @6:20 for example, you mentioned a solar panel used to create hydrogen. I read the article (2 years old), and then researched their claims. The company they created is called the Solhdy project. Their claims have not changed. 210w panels can create 250L of hydrogen on average for each day of the year. This is quite hard to beleive, and here is why: At room temperature of 25C at 100% humidity you can expect around 23g of water per cubic meter. So 1Kg water = 43.478 cubic meters of air (with 100% efficiency of water extraction). H2O(l) → 2 H2(g) + O2(g) . 1kg of water, being 1 litre of water, will produce 111.19g of hydrogen (calculating for their atomic weight). This means for 250L of hydrogen, we need 2,248L of water to create the hydrogen needed. To get all that water and extract all that hydrogen, we will need 97,756 cubic meters of air. Let that sink in. The claim is a 210w panel can suck in, and then convert the 97,756 cubic meters of air to create 250L of hydrogen on average every day. This is accepting 100% average humidity 24 hours every day of the year, and then a conversion of air to hydrogen at 100% effectiveness. This simply cannot happen. It gets even worse when we consider there is not 100% humidity every day (far from it), and it is not possible to get 100% extraction of the humidity which happens to get sucked into the device.

[@justincase8532]

The truth is no longer relevant. Climate change bunny and tree huger activists are not concerned with science and especially the laws of thermodynamics. Thanks for giving some honest perspective.

[@xiaowei1]

I am very much for protecting the environment, but a scam is a scam. I'd much rather hear reality and ways to actually solve problems, then for people to try and scam money from people who care.

[@alanmay7929]

Some companies have also been working on a better hydrogen storage solution. In Germany they already have prototypes of hydrogen powered houses.

[@zber9043]

Australia too

[@sigismundsulzheimer5512]

These are no longer even prototypes, but are already ready for the market and are already being sold. See the system called "Solhub" from Fronius and "Picea" from HPS.

[@alanmay7929]

@@sigismundsulzheimer5512 I know, I've already watched a documentary in german, the system can even store hydrogen/energy for the winter and it works awesome, now we just need a better hydrogen storage solution to reduce incidents

[@sigismundsulzheimer5512]

@@alanmay7929 I see, that's great. There is a highly interesting and remarkable approach to the safe storage of hydrogen. It also comes from Germany and is called "Powerpaste". It's a paste made of magnesium hydride developed by the Fraunhofer Institute. This paste is not under pressure, does not need to be cooled and is offered in replaceable cartridges. This means that the paste is neither liquid nor gaseous and only produces the hydrogen needed for the fuel cell when water is added (from a separate water tank). The cartridges containing the magnesium hydride are reused after use, thus creating an energy cycle www.ifam.fraunhofer.de/en/Profile/Locations/Dresden/HydrogenTechnology/hydrolysis.html

[@Ikbeneengeit]

Thanks for another interesting video, Matt Ferrell!

[@yashnegi9473]

I enjoy watching these type of high quality videos. God Bless You.

[@James-ye7rp]

Hello Matt, You stood in for Joe Scott, and then I had a look at your work. Then I subscribed. Thanks for your work.

[@fauzirahman3285]

There is a currently a home "battery" storage solution touted by an Australian company called Lavo offering to store excess solar power in the form of metal hydride storage of hydrogen. The first delivery is sometime later this year, so it'll be interesting to see how it performs in domestic environments.

[@James-kg1wf]

love any idea to improve our energy production and storage. I'll have to look into what you have posted and always keep an open mind to allow for innovation as this is how we move forward. Have a great day and stay safe!

[@WillOfTheWeb]

Very well produced I have to say. You are easy to listen to.

[@headcrab4090]

I will share this video. Very well done.

[@greatScandinavian]

Matt, I think this is a cool and well architected presentation. Good job :-)

[@icyknightmare4592]

Hydrogen got a bit of a bad rep from the early push for fuel cell vehicles that lost hard to BEVs. It's still a pretty bad idea for a civilian road vehicle fuel because of the insane infrastructure buildout necessary to make it viable. Where Hydrogen could do very well is in aviation because the infrastructure can be more concentrated. It's also worth looking into for military vehicles, especially for countries without a good internal source of oil. Japan in particular, being a leader in hydrogen tech, would benefit greatly from that capability since they don't need as much logistics integration with allies.

[@armadillito]

HGVs, similarly to aircraft, follow consistent routes so are relatively easy to build a fuel infrastructure for.

[@Olsulor11]

@@armadillito Siemens and Scania's Electric Highway project is also a great option for those. (Even better than Hydrogen in my opinion)

[@alanmay7929]

Hydrogen just needs a better storage solution and many companies are already working on that.

[@bali208]

You missed to mention LAVO, a company which has created a power wall kind of system for your house with green hydrogen generation

[@nayansolanki6382]

Thank you for sharing such a valuable information!

[@ModicumOfWisdom]

Another great video :) Thank you.

[@frankcoffey]

Great video, all good information at just the right pace and duration. I can see Hydrogen being very useful for fixed and fleet applications. I also believe Toyota wasted a lot of time and resources trying to make it applicable for passenger cars (too soon) when they could have really made progress on battery cars. Unless it gets really easy to make and store Hydrogen it's just not a good fit for cars. There are plenty opportunities for Hydrogen that make sense without targeting passenger cars. It's going to be hard enough to get enough charging stations built without having competition from Hydrogen. Now, if Hydrogen fuel cells power those "fixed" chargers along the road? I'm cool with that.

[@hiwelcometochillis2579]

Green hydrogen contaminate less than electric energy

[@WayneJohnsonZastil]

Have a look into Stirling Engine Heat/Cold Generators! Amazing tech over even Air source and Ground source heat pumps.

[@RickinICT]

He just did a video on Stirling engines.

[@finddeniro]

Slow and Steady...Cost Efficient ?

[@mikefernandz6770]

Thanks for the citations

[@jinkal3778]

Nice information 👏👏

[@davidmoore2699]

Sun Hydrogen also has a hydrogen solar panel in development. The seem to be getting close to commercialization. As far as storage goes I'm not sure hydrogen is the best storage medium. There is a promising liquid metal battery from Ambri that is being deployed commercially for the first time.

[@georgepaulous2923]

Yes I have followed this company for awhile and they might have something

[@chadlymath]

Has it solved the power drain or weather flux problems lithium has?

[@gregcollins3404]

I did a similar report on hydrogen to my social studies class in 1973. Not much has changed I'm sad to say....

[@avisiva9045]

i hope this time it will be different

[@alliejr]

...and flying cars!

[@J0shT89]

@@avisiva9045 how? Hydrogen doesn't change, it will always be hydrogen and our laws of physics don't tend to change either so good luck with your high hopes...

[@ultrastoat3298]

That’s because physics hasn’t changed that much since 1973 :D

[@George_Shonia]

I hope that will never changes, I don't want to visit hydrogen fuel station every week! I love my car being charged every night & ready to go for every morning

[@claudiaroy9455]

Great video 👍🏻🙌🏻

[@anders21karlsson]

Great video!!

[@rickdees251]

Hydrogen is not cost effective fuel with present methods existing today. If it was an economically viable option today saying it "could be" or "might be" in years 2030 to later wouldn't be heard or said in this video.

[@armadillito]

Pure economics doesn't have to hold essential technologies back - if green hydrogen is deemed important enough governments could subsidise it.

[@ryanvandyke2675]

Do a video on green steel production! Historically, steel is produced from raw materials by blowing CO through a blast furnace which holds iron ore (which is just iron oxide). The intent of this process is to reduce the iron by generating CO and CO2, which obviously isn't the best. Hydrogen steel making is slowly starting to be implemented, where hydrogen is used to reduce the iron, instead of carbon-based gasses.

[@ericlotze7724]

The CO is typically produced by coke (usually coal, but maybe petcoke (with it becoming common due to everyone’s favorite T A R S A N D S) inside the blast furnace. Air is blown in though. There is some “Direct Reduced Iron” which is done in a fluidized bed reactor with the reduction gas (co and/or hydrogen)

[@ericlotze7724]

This and concrete will really be essential though.

[@rusturuss123]

Good info and video. thanks

[@SC-fk9nc]

Such an interesting channel on positive technologies for the world! Thanks.

[@StanEby1]

The fellow at Pacific Northwest National Labs who devised a super economical way to derive magnesium from the Salton Sea is Peter McGrail.

[@janami-dharmam]

Do you have a link to follow? I am just curious.

[@henryhao6946]

@@janami-dharmam here's some links I found: newscenter.lbl.gov/2020/08/05/geothermal-brines-could-propel-californias-green-economy/ www.energy.gov/sites/prod/files/2017/12/f46/3_1_Mineral%20Recovery_PNNL_Demonstrating%20a%20Magnetic_Presentation.pdf www.sciencedirect.com/science/article/pii/S0375650520302303?via%3Dihub

[@Winnetou17]

I think that at this point you can safely go with "Undecided with Matt 'Dad Jokes' Ferrell" :D Then you won't have to apologize anymore.

[@madao7865]

Undecided with Dad Ferrell

[@jimwebb9355]

Do you think fuel cell energy companie has a chance

[@brettloo7588]

Nothing wrong with dad jokes!

[@kenleach2516]

Nice update 👍

[@ronm6585]

Thanks for sharing Matt. 👍

[@UndecidedMF]

Thanks, Ron!

[@dehmystic]

Thanks for the video! One thing that I usually see brought up in discussions about green hydrogen is the associated energy losses. Apparently, there is energy loss when electrolyzing, compressing, storing, and using hydrogen in the fuel cell. They say using solar to Lithium-ion battery to the motor is a far more efficient use of solar power. In your research have you found this to be a real barrier or is it being exaggerated?

[@lordanonimmo7699]

It happens in both battery and hydrogen buy hydrogen loses way more.

[@chrisheath2637]

Imagine you drive your battery EV for a year on 1 field of solar panels. To drive a hydrogen vehicle for a year, you will need 4 fields of solar panels. All fine and dandy if you only have a few hydrogen cars - if you have thousands, that's a lot of extra fields needed.

[@MrArcheopteryx]

Good question. Third law of thermodynamics mentions that every time we transport, or transform energy, we lose some in the process. So, yes, the most efficient way is to go A to B without too many vias. And, each additional steps, as Chris and Lordanonimmo mentioned, ads costs in infrastructures and labour. Aside from installation, sun energy is free. Current efficiency is 22% for top photovoltaic cells, but the trick is that you don't pay or lose the 78% that your panel will not "catch". Someone will have to fork the bill of the mega H2 distribution grid. Most likely it will be defrayed by us, the consumers, either through charges at the pump, or be lobbied out of our tax dollars.

[@pridefulobserver3807]

Both Japan and Chile have a green hydrogen stratgy set in motion

[@handrake21]

And Korea..and many other countries I guess..currently kr holds the largest number of hydrogen vehicles on the road.

[@bloombledotcom]

Thanks for the education!

[@ctrl_alt_delete735]

Great content 🖖🏻👽

[@renemaimann-roland1904]

Its all good, why not just use the power generated directly or store it in battery for when it's needed.

[@Roarpian]

Hydrogen is an alternate form to store energy, like a battery but using a different method

[@andystadi]

batteries are ressource intensive to produce, and wear out over time. also they need infrastructure to charge (100A or so per fast charge EV). all infrastructure must be updated heavily

[@renemaimann-roland1904]

@@andystadi no, and no

[@chadlymath]

How much can be stored for how long before drainage & would you put it under your lawn so it fully recharge or fuel a vehicle or other equipment? Never mind.

[@franciscocunhaetavora9132]

Hydrogen makes sense for long distance vehicles because there are 12000 fuel cell fork lift trucks. What?!

[@alanmay7929]

Yes toyota is working on sooo many different projects on hydrogen technology/propulsion, they even recently worked with some ship building companies.

[@undefined69695]

I saw someone make an incredible point and I hope you do a video about this, basically, the solution to “cars” is not a new type of car but a transition to public transportation aka electric trams/trains/subway and busses.

[@jakoblacher2313]

Great Video!

[@UndecidedMF]

Thanks!

[@Ohelig_]

There's also hydrogen production tests in nuclear. There are periods where nuclear plants are told to run at reduced power because there's too much renewable energy on the grid (not a bad thing!) Because this means nuclear capacity is being "wasted", the idea is to use the spare capacity to generate hydrogen instead.

[@SupremeRuleroftheWorld]

even a cursory look into the physics would make hydrogen a hard pass. just having battery storage or even a liquid salt storage system would be a LOT more efficient, cheaper and safer then hydrogen ever will be.

[@headcrab4090]

@@SupremeRuleroftheWorld It takes a lot of energy to make a battery.

[@Froudd]

Same in Switzerland with waste incinerator plant. They normally produce electricity but have to stop do that when grid is saturated. Some of them are looking to produce hydrogen.

[@SupremeRuleroftheWorld]

@@headcrab4090 it takes even more to make hydrogen

[@SupremeRuleroftheWorld]

@@Froudd yes, that is how every grid works. That has nothing to do with hydrogen

[@MrFoxRobert]

Thank you!

[@UndecidedMF]

Thanks for watching!

[@anthonygrodecki7968]

Great it has a place in the future I believe. Some 25 years ago I made h2 purification units which work at +70 to -70 C approx 1m square. So I understand the issues involved. I feel the solar powered units very interesting. If they combine it with a steam turbine for example no need for costly batteries.

[@RulgertGhostalker]

oh hey too, Matt....i have a Low Head Hydro Concept i am working on .... it uses Extruded Turbines, ( like the process used to make an I-beam ) , less concrete per Kw, modular, and at just 23"head, it can go in where other hydro can't....Plus, eco friendly, fish can traverse the same weir controlled path for overflow that light water craft also easily can ... ( again i wish could attach a screen shot )

[@DV7Dave]

Hydrogen is hard to make and hard to deliver. Other technologies will become mainstream long before hydrogen infrastructure is abundant and reliable enough.

[@mandernachluca3774]

I wouldn't be so sure of that, there are so many applications, that need an open flame , wich demands the use of hydrogen. Basically, if the industry needs it (and the heavy metal industry will need hydrogen), than it will find a way to store and deliver massive ammounts of hydrogen, especially with all the new methodes that have been developed in the past decade.

[@anydaynow01]

Totally agree, once we have successfully minimized the CO2 production in the electrical generation sector we can concentrate on using the excess power production on things like H2 production through desalination and electrolysis. At the same time we should still research materials and infrastructure that can safely contain compressed H2 for long periods of time and minimize the waste stream from it's production and storage.

[@robertsmith4681]

Short answer is no, long answer is also no. Energy density just isn't there for it to be worth bothering with.

[@nicolaslemay]

Before even thinking about everything we could do with hydrogen, green hydrogen needs to replace the enormous quantity of gray hydrogen we already use for industrial purpose. Only there can we really think about all the possibilities, otherwise we will end up with buses/trucks/planes fuel by nature gas.

[@cg986]

Exactly. Looking at the energy efficiency of hydrogen, I fear that it's a trick by fossil fuel companies to INCREASE fossil fuel output.

[@JohnnyC10071959]

There is a lot of education in this short video. Thank you.

[@WanderingDad]

Everyone seems hung up on efficiency or cost, but solar is becoming DIRT cheap. The real challenge will be where to put it all in a few years. Hydrogen has real advantages for short term energy storage.

[@theatheistpaladin]

The future of hydrogen is NH3.

[@rdtschannen]

Matt, you’ve only addressed the costs of production. The real elephant in the room is costs of storage for the user… but you may cover this in another video.

[@grahamerwhamer]

one of my new favorite accounts on any media

[@navithefairy]

Yet another video of you talking about Hydrogen but completely ignoring it's major flaw: terrible efficiency. Hydrogen is for energy storage, not a source of energy, so you already start out with electricity (from for example a solar panel) and you convert it to hydrogen, store it under high pressure, then later convert it back to electricity. The end result is only 25-30% efficient. Way worse then simply using the electricity you already had, store it in a battery and use it which is about 90% efficient.

[@gigabyte2248]

Two thoughts: 1. Hydrogen works better than batteries for long-term storage. Batteries have significant self-discharge, and are really only suitable for storage for a few days at most, whereas a cavern full of hydrogen will still be full of hydrogen months later. 2. The round trip efficiency is low, so what? The cost goes up, but what does that mean we use instead? Fossil fuels are going to end up taxed or banned in a decade or two and biofuels have at least as much trouble with large-scale production as hydrogen does. I've seen some very exciting thermal-based storage concepts from Siemens, but that has a similarly low round-trip efficiency to hydrogen energy storage. Battery electric vehicles are great for small passenger vehicles, but for long-distance haulage (truck or ship), the weight increases non-linearly with range, limiting your payload and, therefore, your revenue. Hydrogen fuel might be more expensive than charging, but if you can transport more goods with (potentially) less downtime, it can still be more cost-effective overall. Hydrogen has significant shortfalls, and I can see it losing out in a lot of applications (e.g. passenger vehicles), but there are some applications where it's either the only option or its competitors have similarly debilitating shortfalls. I'm interested to see whether electrolyser and fuel cell manufacturers can deliver some of the things we've been promised for decades before other technologies manage to nibble away those niche applications.

[@UndecidedMF]

I've actually touched on that in a previous fuel cell video a while back. But efficiency is only one piece of the puzzle. Cost is the biggest factor. Whatever can deliver the needed power at the cheapest price for a given use case ... that's going to be the dominant player. It's why BEV is winning in passenger cars.

[@navithefairy]

@@UndecidedMF Of course but cost is directly related to efficiency.

[@Soothsayer210]

I really hope that Green Hydrogen / Fuel Cell exists along with BEV to power a parallel economy. I am also surprised you did not talk about Gravimetric energy densities of H2 instead of Volumetric Densities.

[@J0shT89]

We've known H2 for centuries... Guess what? It's still H2 LOL

[@joejoejoejoejoejoe4391]

No one seem to mention that to store hydrogen it is super chilled, that takes energy, and when it's stored it bleeds of hydrogen into the atmosphere, and it's a green house gas.

[@SonGChaNSaO]

Matt!! Matt!! Have you heard about the solar dome project taking place in Neom on Saudi Arabia? I'd really like to hear what you think about it!

[@alanmay7929]

Please can you also consider talking about synthetic fuels? Porsche and some companies have been working on that.

[@ericlotze7724]

Look up “Power-to-X” / “Power to Fuels” for some more terms as well as synfuels. I think that combined with sustainable sourced, (not just sugar ethanol/plant oil biodiesel, look up “algae biofuel” “cellulosic ethanol, bio-butanol, and HTL “bio-crude” ) biofuels is the way to go as it is a “Drop In” solution as a bandaid, and long term can make a green grid/fuel economy

[@ericlotze7724]

One of the simplest is methane: - Convert as much waste water treatment to include anaerobic digestion to produce biogas and upgrade this to cng standards - Convert all landfills (that we should remove, but that is a whole other rant) to bioreactor landfills for landfill gas, and upgrade that to cng - Construct plants that take in CO2 (probably from the exhaust of existing Natural Gas Combined Cycle plants, although direct air capture is possible, etc) and industrially produced hydrogen and convert it to methane *All of this feeds into the Existing Natural Gas Grid* Not much more distribution/storage infrastructure is needed. Mainly making it more common for the average user, although this is less of a jump than new hydrogen/large scale electric infrastructure. Also the sheer amount of storage in salt domes/(pumping back into) wells/tanks/the pipelines is HUGE and requires almost no additional infrastructure than what we currently have. Existing trucks run on cng (sometimes with a small amount of (bio-) diesel), and solid oxide fuel cells exist in the market for power backup, but can be converted for FCEV use. We have huge, efficient, power plants utilizing methane. All in all i think AT LEAST starting up synthetic methane is a must.

[@ericlotze7724]

I think most of the current synful strategies people invest in use Gas-to-Liquids syngas+catalyst processes. These could use that methane infrastructure as well as (sustainably sources-) biomass/RDF gasification plants.

[@0hypnotoad0]

Porsche knows full well that's not a scalable technology, they are investing in it so they can sell e-fuel to rich automotive enthusiasts who are willing to pay $3.00 per litre at the pump so they can go "vroooooom" in their 911 on track days. The mere commoners and plebeians are just going to have to accept the agony of driving around in fast, quiet, well mannered electric cars in our horrible future dystopia.

[@ericlotze7724]

I’d be down to help with research if need be, I’ve geeked out on this quite a bit (if you can’t tell lol)

[@ChaJ67]

It is interesting to point out different ways to go about producing hydrogen and it sounds like there is more progress than the last I checked. However there are some intractable issues limiting how far you would really want to use it over alternatives such as: 1. Boom factor - You keep saying this in the video, but it is true hydrogen is a highly volatile rocket fuel than tends to be stored under immense pressure. What could possibly go wrong for example by sitting on a tank of this stuff while going down the road and especially what could possibly go wrong with tanker trucks full of this and gas stations with huge tanks of this, especially as every gas station leaks even when the tanks are not under immense pressure? There are stories about hydrogen fueling stations blowing up and they are not pretty stories. Whole countries have shut down their hydrogen transportation projects over explosions like this. 2. Efficiency - I have seen these projections of hydrogen reaching cost parody for decades and we are still no where near it. Granted there have been some improvements over the years, but the opportune word is some. If it is always going to take several times more energy to make, store, transport, and consume hydrogen than other energy schemes we have, it is always going to lose out on the cost factor. Also if it is taking a whole lot more energy to make this stuff than the useful energy we get back out at the other end when end-to-end is considered, not just the efficiency of one step in the chain, then it is not really all that green as it still takes resources to make the energy gathering equipment and if it always takes several times as much of this equipment, that is several times as much environmental damage as another solution that doesn't have this problem. The last time I saw the math for an example, it was taking 6 times as many solar panels to push a hydrogen car X distance as it did a comparable battery electric car the same X distance. Both battery tech and hydrogen tech has improved some since this, so this ratio is probably still in the same ball park. 6x as many solar panels is 6x the environmental damage to get the energy as the solar panels didn't materialize out of thin air, instead the planet is torn up and polluted to produce them. The plan with solar panels is it is less damaging than other means of getting the same amount of energy. However if say solar panels reduce the environmental destruction by 4x, but you need 6x more of them because your hydrogen tech is so inefficient, then you are actually doing more damage to the planet than if you hadn't bothered with hydrogen in the first place. Plus with it being so very expensive to make the hydrogen fuel cells in the first place, one has to wonder how much of that cost equates to even more environment destruction in getting that fuel cell built where a cheaper alternative may be far less destructive to the planet. 3. Cost - In addition to poor end to end efficiency compared to other schemes we have raising costs, the fuel cells are still very expensive, a lot more so than batteries used for the same application, plus the batteries store the energy a lot more safely than a tank of highly compressed rocket fuel. The Toyota Marai is a mass produced vehicle and the comparable Tesla Model 3 makes it look like a way over priced, dangerous, and way under-powered go cart that also looks like a bloated crap mobile. The problem is also the battery tech is getting better at a faster rate than the hydrogen fuel cell tech, at least for right now and the battery tech is already way ahead in every way, including the cost point here. 4. In airliners - I thought it was interesting that you brought this up. What I came up with here is you have a flying tank of highly compressed rocket fuel flying through the air taking up half of the fuselage where they used to have paying passengers in that space and at that the fuel is more expensive than alternatives. All of those things are a non-starter and all of them are intractable problems. The future of airliners I see are using high temperature superconductors for hybrid electric aircraft like what the Russians recently demonstrated with a real airliner. So I would use LNG to keep the superconductors cool and feed the boil off gas into hybrid fuel jet engines. This way you can do a combination of an electronic gear reduction for greater engine efficiency (straight jet engines are more efficient than the current bell at the back to do a gear reduction by slowing down the air over the turbine blades), modestly slower moving aircraft with more efficient, straighter wings, and batteries for buffering power and reducing the size of the turbines, which will make them more fuel efficient, especially as jet turbines are a lot more efficient at or near full throttle, which they normally rarely ever get near when they have to produce all of the power for flight, but could get a lot closer if batteries produced the burst power needed and left the jet turbines to produce average power while at or near full throttle. Hybrid electric battery tech opens possibilities for more efficient for short take offs and landings at smaller airports with bigger planes and VTOL (vertical take off and landing) aircraft. Think of for example if you did more regional / short hop flights on a commercial aircraft that took off and landed like a multi-rotor drone on primarily battery power and then transitioned to level flight, feathered the extra prop-rotors and shut them off, and then primarily ran on power supplied by right sized jet turbines for level flight? Especially for large air-frames, the LNG tank could be placed in the attic space where there is usually a lot of open space anyway as it is not primarily a fuel tank, instead a coolant tank, but the exhaust gas does get used as a supplemental fuel. Also for the primary fuel you could use a blend of conventional jet fuel and bio-jet fuel. The experiments I have seen with using a blend like this made this look like a doable way of making this all work. In other words you don't get rid of fossil fuels for jets, at least not right away, but instead cut down on how much dino juice gets used. Better battery tech is already starting to creep into short haul flights and may make it all the way into medium haul. What I am talking about with the superconducting hybrid electric airliners is a combination of new avenues for short haulers just not really practical with more traditional methods and far more efficient medium to long haul airliners. These aircraft will pay for themselves through efficiency gains and even gains in safety with the right implementation. So with hydrogen having a long history of extremely high expenses, voluminous, inherently very dangerous, and having terrible end-to-end efficiency making it the more environmentally damaging option than just burning the dino-juice straight in your engine, I mean there is just so much to try to overcome with such intractable problems that it doesn't seem worth it. You can go on about how hydrogen tech is winning battles here and there until your face is blue, but the war will still be lost. At best it will land in a few niche applications.

[@pranjulsharma6015]

Yup you are right .But dont yoi think that if we'll find a easy and cheaper solution for this problem then that would be like miracles. Because we can extract h2 from almost everywhere, Isnt ? What you think ?

[@ChaJ67]

@@pranjulsharma6015 it seems we already have better solutions. For example Elon Musk was just going on the other day about how hydrogen was considered for Starship, but it was found methane is a better solution. Batteries are already a way better solution for cars and Elon Musk has even mocked car makers for using hydrogen while at the same time Tesla's battery electric cars are way better and less expensive, even without subsidies for his EVs while the hydrogen car is still more expensive with the subsidies while being inferior at the same time in every way. While I can keep going down the list, there is a much better performer than hydrogen already in every category, so hydrogen just doesn't make any sense.

[@pranjulsharma6015]

@@ChaJ67 Yes Jason, You're right. But if we see current scenario then it seems like hydrogen is future. Because,government,Venturecapitalist,etc...,they see future in h2 they making huge investment in this technology. I dont understand that there is also lot of other technologies like, "Sodium ion batteries,Aluminium batteries, etc.., " is also a good option but this is not in that hype as compare to hydrogen..... But the point in last is "If we find a proper permanently solution for all the problems regarding hydrogen then it will be Breakthrough for an entire energy industries"....

[@ChaJ67]

@@pranjulsharma6015 I think the important thing to understand is if not done a certain way, most 'green' solutions twist back to fossil fuels and often use more fossil fuels at that, especially hydrogen solutions and corn ethanol solutions. This is why you hear so much about hydrogen and corn ethanol. It is not actually part of the green future and was never meant to be. It was only meant to passify stupid greenies while oil execs and certain farmers line their pockets.

[@pranjulsharma6015]

@@ChaJ67 Jason, I think Extracting h2 from fossil fuel and extracting h2 from Renewable energy is two different thing. The current way of using a hudrogen in industries is mostly based on 1st one which is from fossil fuels,and you know very well that, its not good for environmental. But the problem with getting h2 from renewable sources is, the overall efficiency of Hydrogdn get decrease at every stage. From production to transportation to actual usage.... So here we need a proper permanently and reliable solution to save as much h2 as we can at every stage,isn't ? And when it comes to production of h2 then mostly we hear electrolysis process but thats not the only process of splitting water.There is lot of ways to split the water and that will also be efficient. Recently,i was reading a article which was about getting h2gas at room temperature and here i personally think that if any organization/Someone will develop such technology to get h2 very easily then i will be breakthrough for an entire energy industry. And if we see in current time then it seems like it is possible because lot of new technologies are claiming that they can make hydrogen in very easy way, they can make such a device that will store h2 easily etc...,

[@shaun4950]

Really good video thank you undecided I'm happy u made this video this will be here soon green hydrogen can be made a reality thanks to you and people like you to explain it easily to normal people like me thanks

[@thom1218]

There's a nanotech that allows massive hydrogen storage potential by lining up hydrogen atoms on long chains of carbon atoms. Both hydrogen AND carbon are used for energy production - it's pretty amazing. It can even re-capture the CO2 for later storage. There's also cheap mechanical engines of all sizes that can use this stuff that require no rare-earths or conflict minerals, and no open-air strip mines for their steel and aluminum construction. This magical fuel can even be grown biologically in diverse environments. Frankly, I'm pretty excited for the future of hydrogen.

[@andrewbower2533]

It might be one of the controversial hydrogen sources Matt mentions at the end, but there’s a company in Calgary trying underground steam reforming. Leaving the co2 in the ground and producing pure hydrogen cheaply from oil fields.

[@randomrandom316]

What happens if due to some tectonic event the underground stores start leaking? I understand that CO2 is heavier and will settle but depending upon from which point it gets forced out it might become devastating not just environmentally but for those living around that place.

[@andrewbower2533]

@@randomrandom316 well there’s already conversation around carbon capture and sequestration, putting co2 underground. So there probably an answer to your question out there somewhere already. If they can do what they’re saying, I think it’s a step in the right direction, because the sad truth is if it isn’t cost competitive, whatever the hydrogen source, the other option is just staying with fossil fuels.

[@chrisconklin2981]

The challenge is to produce a surplus of renewable energy produced by wind and solar. Be it a home, commercial locations, cities or the world, if solar, wind, and storage (SWS) can beat out other "fake" alternatives then there is hope. Green Hydrogen is an important aspect of this.

[@armadillito]

Yes, having renewable energy to spare would make green hydrogen look a lot more plausible.

[@armadillito]

@George Mann "absurdly high cost of wind & solar"? Where have you been for the last couple of decades? The rest, perhaps, holds up.

[@armadillito]

@George Mann so the fact that the UK doesn't subsidise wind but does subsidise coal is because...?

[@chrisconklin2981]

@George Mann First, I regard green hydrogen as a last resort when other storage or transport options are not available. Let me expand a little on what I am saying, but start with a question: Name another renewable energy source other than our sun? The issues of Carbon and the potential of nuclear fusion aside, we as a species only have one choice and that is the sun. As to the cost of solar and wind, please don't forget that at present fossil fuels are cheap (fracking is dead). Over time they will increase in price. Just think of $15 a gallon gas.

[@chrisconklin2981]

@George Mann "Too Cheap to Meter"? phys.org/news/2011-05-nuclear-power-world-energy.html#:~:text=Uranium%20abundance%3A%20At%20the%20current,for%20less%20than%205%20years.

[@gavriel25]

Please do a video on Ammonia production. Ammonia can be great storage for Hydrogen, as hydrogen needs to be cooled or pressured.

[@Boingfish1]

Love your channel Matt. I’m looking for one that discusses energy density and correlated efficiencies.

[@MayankJairaj]

wow you released the same video about Green Hydrogen (although material is different) as TechForLuddites!! do u guys time it or what😅

[@PCLoadLetter]

Sounds like the oil companies funded this video.

[@ultrastoat3298]

Yah, this is akin to “clean diesel” to me except it will trick way way more people.

[@draco_2727]

Matt, just jumping here to say thank you for covering Joe

[@buwembo449]

What did you study to be what you're on KZbin today Sir you inspire me

[@Dave-in-France]

I find it really interesting that hydrogen is even being considered as a viable, commercial fuel for private transportation . The amount of electrical energy required to commercially create 1 kg of hydrogen is truly enormous - why not put that energy directly into a BEV - it's a no brainer for me.

[@armadillito]

I think you're probably right, but we don't yet know for sure that producing billions of BEVs will be sustainable. Hydrogen may not be the most efficient means of doing things, but if the overall infrastructure it requires is more sustainable to build and run then maybe we "just" need to build 3 times more renewable generating capacity than a battery-powered world would require!

[@ericlotze7724]

@George Mann I do love power-to-fuels The toxicity of methanol/dme if spilled in the water table is a huge downside. Check out “butanol” as that is better than ethanol.

[@ericlotze7724]

Look up “Power-to-X” / “Power to Fuels” we can turn hydrogen and co2 into methane, and use Solid Oxide Fuel Cells (or existing ICE based “Natural Gas Vehicles” )

[@ericlotze7724]

@George Mann I think composite tanks have helped with the storage issue, but liquid fuels are definitely easier. Methane->Methanol is an easy conversion though, so as with all renewable tech they can coexist/find niches (Methanol for vehicles, methane for large scale transport/storage? etc)

[@ericlotze7724]

@George Mann Racecars often use methanol injection or pure methane fuel right?

[@JordaanFPS]

professional tech investor here, spot on research!

[@booobtooober]

So my thought. @ 1:36 The diagram of solar panels direct to hydrogen to a tank for storage is basically a battery of a different chemistry. Because as you know H2 is a method of storage not a source of energy. So the question ought to be. Which one makes a better battery? A battery, Or a tank of H2. Lets see - A Battery - you charge directly from a solar panel and feed it back to the grid. (90%+ efficient) Hydrogen - Solar panels to H2 electrolysis (minus 15%) Power used to compress the H2 into a tank (minus 10%)(so now down to 75%). Convert H2 back to electricity with a fool cell that is according to US Dept of Energy 60% efficient (minus another 40%) So that equals about 35% of the power originally produced from the solar panels. Adding to that the additional capital required to install nearly triple the solar panels, electrolyzers, compressors, storage tanks btw 10,000 psi tanks are not cheap, and industrial grade fool cells also not cheap.

[@vipulsethi8371]

Please also make a video on addressing the issue of underground water depletion

[@johnnyb1843]

Think the supply of Lithium may become too constrained for electric semis and just maybe Tesla may have to think again.

[@spacedoge3508]

Lithium isn’t really a bottleneck. Only a small percentage of the battery is lithium. Cobalt is the real problem and companies are working hard to solve it.

[@johnnyb1843]

@@spacedoge3508 thank you. I had in mind the latest 'Solving the Money Problem' video referring us to Redwood.

[@nobbyn1956]

@@spacedoge3508That and Lithium being a pretty abundant element in the crust

[@Boingfish1]

O2 (H2) generators have been used on submarines for well over 40 years. Nuclear/steam will create all the H2 we could ever need. The “green” data presented is, as always, non parsimonious.

[@akatsukilevi]

More one reason to go for Nuclear energy

[@Spencer-Voice]

One of the biggest overlooked problems Hydrogen fuel are the end cost and it still needs to be transported. Projections have put the cost (a lot having to do with transportation costs) still at or above the cost of regular conventional fuel. So, it costs the end user not only a lot more than electricity but even more than gas. Not to mention, the transport of Hydrogen fuel has other additional problems I could list.

[@specialopsdave]

A part of a healthy energy mix will likely include hydrogen generation when cheap renewable electricity is abundant, to reduce curtailment. Stored hydrogen could be either used in fuel cells to feed back to the grid when needed OR be used for portable purposes, dependent on grid needs

[@jantschierschky3461]

Any announcement from China I would take with a million tonnes of salt

[@wernerrietveld]

I don't. For sure they are very much not the most trusthworthy bunch in the world, but they get shit done. Quickly

[@jantschierschky3461]

@@wernerrietveld but also very badly

[@wernerrietveld]

@@jantschierschky3461 Not always. Look at for example their high speed rail network. Massive and, as far as I am aware, of comparable quality as the European ones. I have massive problems with China's ethics, but am amazed by the speed of their economic and technological progress.

[@jantschierschky3461]

@@wernerrietveld well they have no resistance, private property, IP, public resistance no problem. I seen number of Chinese programs, quality sucks

[@frozynsoel]

Hi Matt, I've read about Hydrogen being converted to ammonia. I have heard that after Hydrogen is converted to Ammonia, it is easier to transport and has a higher energy density, I would like to learn more about this proccess. Thank you, Gene,

[@miguellopez3392]

higher energy density the you have to do the process of removing the ammonia to use the hydrogen in a engine, lowering density and increasing cost, advantage is just safer transportation as driving a truckload of hydrogen is very dangerous even a LPG truck can damage a city block.

[@clivestainlesssteelwomble7665]

@@miguellopez3392 Its a little recognised fact that the Zeppelin company operated hydrogen filled airships for Thousands of hours and miles with few if any incidents before the Hindenberg incident...a ship that was designed to use helium but the supply was embargoed by the US due to Hitlers rise to power. The same risk problems with Methane natural gas .... LNG Propane Butane... Etc they are all explosive in the right air mix ..and most of those dont even escape upwards they expand and pour over the surface and fill any hollows ... So they dont disperse. H2 and Methane are not toxic however Ammonia is, very and its effect on humans is highly unpleasant even at low levels. So yes we have to explore the options increase the efficiencies and develop alternatives rapidly. For everyone's sake. And no more bending to the FFuel industry but the we've still got all this oil/gas to find and get out the ground.... No sorry its last orders at the inn. You will still use it to make stuff...but a lot less stuff and it will have to last and be recycled again. But burning it or converting it and producing CO2 or any other greenhouse gasses as waste product isnt acceptable ... Meantime whatevers done has to be effective, affordable and long lasting ... Lithium battery tech as it stands is complex expensive rare, energy intensive and extraction is currently damaging ...recycling barely tested and complex. The other problem is too many people wanting/being told they need too much. The too many people is harder to deal with but aging populations are going to be a fact. The too many group that takes too much and bury's its collective heads in the sand is the real problem.

[@miguellopez3392]

@@clivestainlesssteelwomble7665 I know about the hindenberg incident and dont hold hydrogen accountable for it, batteries in the past 30 years have gotten much cheaper to make, new methods to extract lithium are being developed and even when powered by the average energy mix is still cleaner than most cars in the US. Oil products should be used to make products cheaply and not as a fuel source, that carbon needs to stay locked into a solid not a gas. Hydrogen only has a future in energy if energy becomes nearly free VS batteries needing to become cheaper, do you see the world increasing energy production by 5x for the same price in 30 years? I don't, I see a 5x drop in battery prices in 20 years, tesla already single handedly make sit easier to get fast charge in the US, there Is not a single hydrogen station near me for over 500 miles so there is also the infrastructure question, no company wants to pay for hydrogen infrastructure, they are waiting for the government to do that for them.

[@clivestainlesssteelwomble7665]

@@miguellopez3392 Yep its the heavy plant and possibly ships that might use it ditto it might find a use in large aircraft. If Hybrid Airships can be produced large enough. You might see a real shift in emphasis. But the whole JIT supply chains going to have to be cut.. Just because youve been able to do something cheap by sending halfway round the planet isnt going to make the grade. Like exporting waste. Big long lasting stationary grid size storage batteries are going to be a necessity , lots of them so they need to be cheap to make and use relatively common elements. As Dr Don Sadaway says whatever you use needs to be common... dirt cheap. Meantime the general US pop is faced with a big clean up bill for its past and present profligate practices. Deep sea mining for rare Earth metals is likely to cause a huge biogenic kick back .. One thing we should have all learned decades ago is what you do to the air you do to the water and visa versa ... And they are the two systems that touch every part of the planet ..no ducking or diving no excuses. The other connecting element is the soil for most of us. Mess that up and you loose a huge reservoir of CO2 Methane as well as means to produce the majority of our food ...that require massive oil inputs as fuel, fertilizers and pesticides subsidies. Mainly through out dated soil damaging intensive farming techniques that create a global double whammy. We need to get a lot more imaginative and a lot less petty.

[@andymacleod2365]

Is there sufficient platinum used as the catalyst with fuel cells to enable a meaningful rollout?

[@mandernachluca3774]

Say it with me: "HYDROGEN IS NOT THAT BAD, THE FUTURE WILL BE HYBRIDIZATION OF HYDROGEN AND BATTERY VEHICLE TRANSPORTATION"

[@SirHackaL0t.]

‘Not that bad’ isn’t that good.

[@Sacto1654]

The biggest problem with hydrogen: how are we going to distribute it. Unlike natural gas, petroleum and even electricity, the lack of a distribution infrastructure is a big downside to a potential hydrogen economy.

[@kolle128]

While generating hydrogen with electricity is not efficient it does make sense, when there is excess electricity in the grid. I heard they are disconnecting solar in California in summer. It would make sense to generate Hydrogen with it between 10-14, when the grid could not handle the generation, instead of disconnecting it.

[@ultrastoat3298]

It does not make sense actually. There are better ways of storing energy. Battery storage, pumped hydrogen, and liquid air battery storage are all better choices. Hydrogen is a con from the fossil fuel industry in an attempt to stay relevant in the next decade

[@kolle128]

@@ultrastoat3298 If they could store all that energy in a battery it would not be disconnected from the grid. The battery required is just too expensive at the moment for that.

[@ultrastoat3298]

@@kolle128 huh? A hydrogen solution is more expensive than all 3 of the solutions I mentioned.... which you oddly singled out one of them.

[@kolle128]

@@ultrastoat3298 We do agree I think that the storage should be improved. I just think that this is the quickest method of doing something with the electricity, and something is better than nothing. Ofc, If the capacity of more efficient storage methods increases I totally think they should be used instead of hydrogen. But its not like there is a liquid air station built, that is currently unused, or two nearby lakes for pumped hydro, that nobody noticed until now. The total capacity of the existing storage methods is not enough.

[@williamstrahan3198]

Thanks, Matt!

[@rklauco]

I so wish the answer to energy and environment problem was as easy as just one solution... Btw, great and funny jokes all over this video :D Had trouble keeping up with the content by the end as I was focusing on the jokes more :D

[@UndecidedMF]

Trying to keep it entertaining.

[@rklauco]

@@UndecidedMF For me - achievement unlocked :) Informative and entertaining at the same time :)

[@zber9043]

Using perovskites to directly produce hydrogen from solar and water is getting very interesting. It’s potentially much more efficient than HB reactions too.

[@harrynocos3378]

Wow.. Wow.. This is a great idea guys

[@LjubomirLjubojevic]

@UndecidedwithMattFerrell, it would be interesting if you tried to get data on how much "portable" solar-powered H2 electrolysers can recharge the truck or ship, how much truck/ship would need liters of H2 every mile/hour and how much would truck covered in solar panel with electrolyser could (re)generate. Even if it is not much, if you can extend range 10% during driving and waiting to load cargo it could be huge impact. For ships they would not need as much fuel if they can generate it during voyage with huge panels that double as shades or even as additional sails.

[@nobbyn1956]

the conversion losses are silly. You would be better off sticking with electrons.

[@TheRocco96]

Another problem with hydrogen is that it is the smallest molecule. When you store hydrogen in some kind of container, the molecules that make up the container are much bigger than the hydrogen molecules, and so the hydrogen molecules find gaps between these much bigger molecules to escape from the container.

[@hearmeout9138]

I believe that I might be able to generate hydrogen gas using primarily "renewable" energy, but it seems a stretch to believe that it could ever be stored as compressed liquid hydrogen efficiently. According to the phase diagram for hydrogen, compressed liquid hydrogen would have to be pressurized to around 15 atm and maintained at around 35 Kelvin. I'm no HVAC expert, but I would expect the energy requirements to achieve those conditions to be far beyond what is practical from renewable energy sources.

[@TryAdaptLearn]

There may or may not be a simple answer to the multiple items in relation to production, transition and storage of energy from hydrogen, but the process to analyze the issue continues with more questions than definitive answers.

[@2hoops]

Hello from down Under. I have just put my deposit down for a #lavo hydro system for residential homes. Worth having a look at. Keep up the good work. Love the videos

[@UndecidedMF]

Thanks for the suggestion! After you get it installed, I’d love to hear about your experience living with it. Feel free to hit me up. undecidedmf.com/contact-me