Hydrogen Fuel Cell Cars Aren't The Dumbest Thing. But... | Answers With Joe

[@user-nf9xc7ww7m]

I just use coal in my car. Shovelling as I drive.

[@32Rats]

I just use wood, my car destroys 6 entire trees every 100 miles

[@tttm99]

Mine burns grass, has shift eyes, whinnies, and can't be trusted... Edit: Is yours on rails by any chance? Sounds awesome! Those Brazilians have done heaps to improve efficiency too. Should take a look...

[@sunuk1915]

Send me once

[@user-nf9xc7ww7m]

@Drew Peacock Ill save some of my coal for your stockings, you naughty person 😁🌰

[@harrymichaels3877]

That’s a steam train

[@TownsGroup]

“I got a green on.” Joe you have made my day. 😂😂😂

[@StormsandSaugeye]

"Are you turned on right now?" "What?" "What?"

[@raaedbucksimiar8673]

😂

[@IgabodDobagi]

lol at "Something went wrong there." best intro ever.

[@mistakenintegrity]

Man. This is the only channel where I don’t skip or abandon any videos. You choose amazing topics, and break them down beautifully. And your dry sense of humor is really the cherry on top.

[@joescott]

Thanks man!

[@thinkabout288]

i had to back it up a few times but awesome info 👋👋👋 always

[@studygodsword5937]

@@joescott the problem with all these electric cars is that the electrical grid will not handle it ! California was already having several brownouts this summer !

[@studygodsword5937]

@@joescott your numbers are way off, turning fossil fuels into electricity loses about 60% of the energy, you did not include that !

[@brunodesrosiers266]

‘’Dry’’: debatable; but nerdy for sure.

[@Mike504]

Still smoother with the ladies than I am.

[@michaelm8973]

Oof

[@richnokes5127]

The more u ignore women... The more they r interested in u... No Joke

[@tomwilson2112]

This is true. And I am sad now. Also single. For a good reason.

[@samr.england613]

@@richnokes5127 There's truth in that.

[@matbat2909]

@@richnokes5127 can confirm. but gets awkward if you get several women interested in you and you can speak to none of them :c

[@jeremyg9323]

"My car makes ozone" sir, that is a chemical hazard

[@user-nf9xc7ww7m]

And it shoots it up into the stratosphere!

[@theundead1600]

The ozone is very fragile and wont fix the whole. But good try

[@tttm99]

Indeed! Yes! "Ehem... But... Actual science" 🤔🤣 Edit: Short version, STP comparison O2 density(0 °C, 101.325 kPa) 1.429 g/L vs O3 2.144 g/L (0 °C) Photo copiers also make the stuff. At 2.144 grams per litre at 0 degrees and standard pressure vs O2's 1.429, I don't know how anyone thinks a heavier molecule (edit: i should say more dense gas) 'shoots up to the stratosphere either'. Maybe on the back of the greenwash unicorn? (Edit: previous extraneous mention of mole was a revenant of older edit; elided to preserve fragile minds. Though 'what i meant' should still have been abundantly clear unless the reader's density was more an issue than the gases in question 😉) Also not sure how we'd be breathing if ozone did make its way up high too. (Edit: implying lighter O2 wouldn't stick around for us to breathe) Don't mention anything about the mining of rare earths, lithium, etc. You'll break hearts.

[@stephenfowler4115]

The danger of ozone is like many others. It depends on where its at. Ozone where we breathe is dangerous. Ozone in the upper atmosphere we can't live without.

[@stephenfowler4115]

Lol carbon fiber isn't made from carbon dioxide. Its made from graphite probably made from fossil fuels.

[@larrywest42]

Coming to this almost 4 years late, I think it's held up pretty well - exceptionally well considering how active this area is. And also, I hope @Joe Scott revisits this topic in a year or so.

[@parkchau]

Joe that’s intro was comedy gold. I can’t wait for more skits from you. This will be a great year for you

[@thebetterjulien5354]

I was dieing laughing

[@SobeCrunkMonster]

Are you stroking his green on 8===D 0:

[@thebetterjulien5354]

@@SobeCrunkMonster y

[@craigstuckey319]

Loved it! More please!

[@rickdees251]

It was mostly lost on me because I thought is was a bit childish. Glad for those who like it though.

[@loinnirs1232]

Wait-wait-wait, Joe can actually leave the room? Mind = blown

[@MrGman590]

Holy crap, he has legs! He's not a chairtaur!

[@thisismacom3723]

This sounds more accurate now

[@warpdrive9229]

I thought someone or something stops him from leaving his home 😂

[@ryanmcfall1127]

I think your math was off, the percentages should be multiplicative not additive

[@Dogfurforever]

Twas loses

[@randomjoao]

Did you just add the efficiencies? It hurted my feelings.

[@ChayComas]

He uses "Alternative-maths" ... Lol

[@headerahelix]

Whoops

[@joscaca]

“I’ve got a green-on”. I like it.

[@HensleyTG1]

What about a big pickle do for you? Pickle Rick

[@HensleyTG1]

Joe wont even give mema like, I'm sad

[@ianmacfarlane1241]

@joscaca Some people have a green finger, some people have a green thumb, it would appear that Joe has a green....... ..........little Joe. (Kept it clean).

[@HensleyTG1]

@@ianmacfarlane1241 I hear he keeps a glossy shine to it...

[@nellyfarnsworth7381]

I got such a huge green on. Talk dirt to me.

[@traianima]

you had the perfect oportunity to say "talk clean to me" :))

[@pbarrick03]

Talk dirty.. I drive a v8 baby lol

[@Legolo]

Trees

[@HermanWillems]

Not talk "clean" to me?

[@spc.callahan1462]

Green weenie

[@Meatball2022]

“Green-on”. Lol. I admit. That was funny

[@ChayComas]

Somehow, I don't trust this guy's math; energy loss ratios aren't accumulative.

[@MadScientist267]

What the hell is an "energy loss ratio"?

[@johndelong5574]

But a good aproximation.

[@alfreddupont1214]

@@MadScientist267 Basically, whenever you lose energy, it's a loss in proportion of what remains at that point, not a proportion of the grand total you started with. Example: Two times 20% loss in a row is not 20+20=40% loss but 20+80*20/100 so 36% loss.

[@hypehuman]

Totally agree. Joe's method makes the efficiency difference between Hydrogen and Battery look worse than it really is. His numbers of 42% and 80% make it look like Hydrogen is only about 52% as efficient as battery (42% ÷ 80%). But in fact, if you calculate it properly, you end up with about 50% for Hydrogen and about 81% for Battery, which means Hydrogen would be about 61% as efficient as Battery. If you have two processes one after another that each have a 90% energy loss, you don't end up with negative energy at the end (Joe would have calculated -80% total efficiency). Rather, you end up with 1% total efficiency, since the second process takes off 90% of the 10% remaining from the previous step, meaning the second step only subtracts 9% of the total efficiency. The more straightforward way to calculate this is not with the loss, but with the efficiency, in this case 10% efficiency for each step. Then you can just multiply them to get the total efficiency: 10% × 10% = 1%. So back to the cars. For example, the Electric Motor has a loss of 4%, meaning that it's 96% efficient (100% - 4% = 96%). So for Hydrogen it's 96% × 94% × 92% × 60% ≈ 50%, and for Battery it's 96% × 94% × 92% × 98% ≈ 81%. Also notice that you can get the relative efficiency of 61% more easily by ignoring the first three steps, since they're the same for both. So 60% ÷ 98% ≈ 61%.

[@catocall7323]

@@hypehuman also, he says electricity has a 5% loss on it's way to your battery. IIRC it's closer to 8% - 15%.

[@mikehink4062]

That intro was fantastic on so many levels 😂

[@martythemartian99]

Erm... no... no it wasn't ;)

[@AHustleIsLikeASideOfFries]

A "green on", love it!

[@unnamedchannel1237]

So much sexual tension

[@moflyboyblanquito541]

Was good. Lol

[@dantess2693]

That intro was just fantastic. Your intros and content are just getting better and better Joe!

[@eugeneputin1858]

Blatant copy from throttle house though

[@jeremyturner2873]

A parody is not a copy.

[@kaptu100]

Fiss the dog!

[@johndill7290]

I agree. I really like to see creativity and he continues innovate and provides entertainment and knowledge. I am very close to becoming a patreon.

[@tonyduncan9852]

I want just the intro. I want just the intro. I want just the intro. I want just the intro. I want just the intro. I want just the intro.

[@WillTellU]

I remember hearing about this hydrogen plan and one more thing they mention as an advantage is those local hydrogen stations would also act as batteries for renewable energy. So every gas station would be a small power station too, evening out the grid power.

[@dawnofapril3055]

When I made the choice between a Nissan Leaf and Toyota Mirai, the biggest concerns I had about the Mirai was how expensive the hydrogen is and how few stations outside of California there are. So I went with the Leaf. If they can get the cost down and the infrastructure built, it will definitely be a competitor.

[@danielwackerman7749]

Joe, LOVE your channel and its content. 15 years ago as an advisor to local government I tried to implement Fuel cell vehicles for a small municipality in Alaska. The grid there is ran by small waterfall hydro-electric plants...near zero recurring cost and near zero emissions!! (outside of construction). Also of note; Alaska and the western part of our continent is lined with Volcanoes useful for geothermal energy production with near zero emission and recurring cost, GREAT for producing Hydrogen!. Our calculations showed enough geothermal energy (beyond development)to run the entire "hydrogen economy" without any burden on the current system. I and the committee were told behind closed doors that 'No part of this will be subsidized or funded by the government as it is competing directly with the interests of our campaign funders" ! It was a major lesson in the realities of adult life. Sadly, the government invested in 'Bio-fuel' burning wood chips and in Big-oil. Hard to compete with Big-oil when the government offers strong subsidies, tax breaks and incentives to 'big-oil' while excluding clean energy tech. We tried to work with Icelandic New Energy with their extensive fuel cell expertise. Not sure how to proceed without support, we were told to drop the projects.

[@TheAmericanAmerican]

Daniel Wackerman Damn that’s a depressing, yet unsurprising story... One of the biggest problems with the US right now is the fact that our tax payer dollars go to the multi-billion dollar oil companies for “research and development” 🙄 Why, oh why can’t we reroute all that money to green energy tech like you’ve explained here!? Anyways, keep up the good fight and get the local people involved! Educate them and tell them to call their representatives and demand change or they can kiss their cushiony DC offices goodbye!

[@Pining_for_the_fjords]

@@TheAmericanAmerican Time to move to Europe where we take renewable energy seriously (especially in Iceland).

[@TheAmericanAmerican]

Conway79 Hahahaha haha.... ha! Man... I already did!!! Seriously! 🤣

[@TheAmericanAmerican]

Conway79 Greetings from Deutschland! 😁

[@Pining_for_the_fjords]

@@TheAmericanAmerican Guten Tag from England!

[@Shimon-ohayon]

Somewhere in America someone is now creating "EV's" porn category

[@1MarkKeller]

Oooooooo! I got a green-on!

[@BaronVonQuiply]

Rule 34, it's already out there. I'm serious... there's porn of dragons banging car tailpipes so I'm certain one of those will be EV.

[@PhilipTheThrill]

Electric Vaginas

[@fischX]

Charge me up with your plug!

[@hydrolifetech7911]

@@BaronVonQuiply wait, how exactly did you find this out?

[@kotogray8335]

Soooooo.... Is that your wife? Regardless, you both are good actors and the skit was hilarious!

[@lostintime8651]

Truth be told that was a scene from TV show Frasier that happened between Frazier and a woman that did the financial news on the radio station. Then everybody had to attend a seminar about sexual harassment at the workplace. Watch Frasier. It's one of the best written TV sitcoms ever.

[@keaston44]

Frasier was only ever funny when its competition was Seinfeld, Friends, and Cheers. Now adays it barely registers as anything other that "two and a half men" if they were all geriatric and vaguely homosexual.

[@CMDRunematti]

if 27% that's left is better than gasoline then you have a car you can fill with sunshine. and doesn't use tons of lithium to make battery for. and while i write this you said exactly this. lol.

[@cccaaa9034]

Sorry to be late watching this but your intro skit had me laughing. Thank you for the fun start.

[@MadScientist267]

Actually that was really lame

[@briankachelman]

That has to be one of the funniest intro's to a video i have seen in a while!!! "Green-on" lmao!!!

[@dupree314]

It was terrible. I wish I had not seen it, I will now have to think less of Joe for ever more, and I really don't want to.

[@vikranttyagiRN]

@@dupree314 lighten up

[@joshuakerger2897]

Especially seeings it’s a hard on no matter what the inspiration. It got a Li’l korny for a touch but I’m thinking he still pulled it off. No offence intended especially as I could be mistaken for being autistic at times and anxiety is a bitch but.. Even though it was clearly scripted and was even emphasising that a bit but I reckon he played the part of himself pretty well and that’s definitely how it could’ve gone down. The fuck do I feel the urge to comment on every second video, as if it matters in the slightest what I think?... Pretend I never said anything... Actually, pretend I said something extremely witty, insightful, borderline hilarious, slightly offensive to some, triggering-ly offensive to others but true. Maybe add something in the end there just raising some awareness for a charity or two. Then if it isn’t too much trouble, could you please just go door to door around your neighbourhood for like... only a month or three and collect some donations for said charities... by force if necessary... It’s for a great cause.. But you must never, ever, under any circumstance, assume someone’s gender. I just feel funny about this. One of the most sadistic things one could do to another..Absolutely horrific. Evidently now just dribbling and don’t know what we will spend all the money on at the end... maybe matching face tattoos .. Just something for yas to think about... it’s an open discussion so hit me up on my pager with ideas.. Cocaine?? Anyways, peace out

[@SDsc0rch]

typical feminist... she did him a favor

[@colleenforrest7936]

Green-on, game off ... ooops!

[@daveydwhite]

More intro sketches!!! 😅😂🤣

[@DriesduPreez]

Definitely more intro sketches!

[@WilcoVerhoef]

Yes! I really like Joe's acting.

[@DxBlack]

No.

[@daithimac5785]

@@DxBlack Yes

[@rileyt7006]

Basically it mimics the mitochondria organelle inside our cell, at least it’s a very similar process. Amazing.

[@MadScientist267]

Exactly the same, only completely and totally different

[@hermeticxhaote4723]

As above, so below. As within, so without.

[@lonestarr1490]

So, couldn't we just cultivate gazillions of mitochondria in labs and glue them together to build tiny power plants to put in cars, houses, planes, cardiac pacemaker, and what not?

[@MadScientist267]

@@lonestarr1490 We did. Only it's a *really* old invention. We pull the leftover soup out of the ground and put it in these metal things that have spinny parts to make things go vroom vroom

[@hermeticxhaote4723]

@@lonestarr1490 yes, thats called nanotechnology.

[@DerrickNedzelMtnBike]

My wife and I live in the Denver area. When we are driving around town, an EV works great, as far as Colorado Springs or Fort Collins for the day, no problem, we could recharge the car before heading back home. But we regularly drive to Utah, New Mexico, and Wyoming camping and pulling a small trailer (17' long, 3300 lbs loaded), then the EV doesn't work at all. Heading west of Denver you have to go over multiple mountain passes, and pulling the trailer, and you need a lot of power, and you need to be able to refuel quickly to keep moving. I don't believe the coming EV pickup trucks will work either, because once I drain the batteries getting up the first mountain pass, I will have to recharge, to make it up the second mountain pass, then charge up again to drive out to where-ever I am going - I may have to stop 3-4 times to recharge, with a large battery pack that could add up to hours of extra travel time, maybe half a day for what normally takes 6 hours with the gas SUV pulling the trailer. Seems like this would be more of an issue for people in the western US where cities are further apart and distances driven might be bigger than in the eastern US and where people do a lot of outdoor activities in areas where there aren't necessarily hotels easily available. Or am I underestimating the capabilities of the coming EV trucks? Seems like a fuel cell truck could do the job though. Thanks for the video, I really enjoyed it!

[@abhirajsutar8260]

You know what, actually that's the reason fuel cell vehicles are first pursued for trucks, semis, and other cargo transport systems, battery powered vehicles won't really boom there that fast(multiple reasons like charging time, charging power, cost, etc). Infact Nikola almost announced a FCEV Truck. I think these technologies can coexist at the same time and they could reach a point where people will choose them the way people choose petrol or diesel nowadays.

[@scottiethegreat74]

Have to agree with you!! As someone from Western Australia, the distances we travel in the country are vast, and batteries just aren't there yet!! It could have worked if batteries had been standardized, so we could drop out a battery, and insert a new one in minutes, at places basically like the gas stations we have now!! That could have worked if companies had been willing to work together!! I don't know if batteries will become good enough for the requirements in places with vast distances to cover, but they are good in city areas.

[@Karl-Benny]

@@scottiethegreat74 you could have a small trailer battery that can easily be swapped

[@eannamcnamara9338]

That intro was absolutely amazing!😂

[@theword7268]

ITA, great funny intro

[@PeterKnagge]

Even more hilarious is that virtually the same technocratic pissing contest is happening right here in the comment section. Every side equally dogmatic, nutty, AND WRONG! /popcorn

[@benfaust]

I was planning to comment on the intro too. Loved it!

[@jorants]

Just as a note: you can not sum percentage losses, you have to multiply the efficiencies.

[@WhoIsTheEdman]

Sure you can! Take the example of someone trying to build a solar-powered go-kart with a shop vac motor: Solar panels are ~22% percent efficient, which represents an energy loss of 78 percent, and the universal motors that are used in shop vacuums are about 60% efficient, which represents a loss there of 40 percent. You take 78% + 40% to get a total efficiency of -118%, which means that energy from the sun is actually *destroyed* in order for the solar go-kart to do no work. Mathematically, we can prove that with enough solar panel + shop vac motors, we can reduce the power of the sun to prevent global warming. Hope that helps!

[@MattJDylan]

@@WhoIsTheEdman "old spice is so powerfull that it can turn off the sun! But then it gets too cold, so it makes another sun... DOUBLE SUN POWAAAAAAAAAAAAAAA"

[@daxterminator599]

The only point you need to multiply is when you go from the production to the actual efficiency while driving. As long as you reference the same total fuel as 100%. So if you lose 2L of gas during transport, 5L during storage, 20L during drilling and refinement and so on, and you started out with an ideal 100L of gas you do end up with a 27% loss. Then again I don't know how he got his percentages so it might be either way.

[@williamneal9076]

@@WhoIsTheEdman I thought percentage goes only 100 or less.

[@inconspicuoususername]

@@williamneal9076 There are plenty of scenarios where it's acceptable to have a percentage of over 100, but his entire comment is meant to be a joke anyways.

[@booobtooober]

There are a few more problems with hydrogen that few people ever bring up. First is that hydrogen is the smallest atom and as such very hard to contain. In other words it's extremely prone to leaks. It leaks at every fitting and it's so small it will in fact leak through the walls of a steel tank! OK OK the amount that seeps through the tank walls would be incredibly small, BUT, the problem is that it causes hydrogen embrittlement which affects pretty much everything and will eventually compromise the tank's structural integrity. So, now lets talk about high pressure tanks and structural integrity. 780-BAR (atmospheres) is over 11,000 psi. 780-bar is an incredible amount of pressure and introduces a lot of stress on a tank, and all corresponding equipment such as compressors, pipes,etc.. On top of that you have "hydrogen embrittlement". Now I'm no expert on hydrogen tanks but I can tell you about scuba tanks (200 bar - 3000 psi). At a quarter the pressure they can be and are, if not handled/used properly, extremely dangerous. Hydrostatic testing is required every five years. This test must be conducted by a certified technician and essentially determines whether the tank is structurally sound and will not burst under pressure. By DOT regulations they can only get re-certified two times for a 15 year total life span. I would surmise that with hydrogen tanks, the incredible pressures, and its embrittlement problem that the life span would be much less. Hydrogen embrittlement doesn't just affect the high pressure tank, (my primary concern) it affects everything it contacts. Second biggest concern here is the regulator. A 780 BAR regulator isn't cheap and it will be degraded over time, and even faster because of embrittlement. What problems will that create? Everything about hydrogen fuel cell vehicles and its corresponding infrastructure is more complex and complexity makes things more expensive, prone to failures, and costly to repair. And for those reasons I'm out.

[@martinwinlow]

And then there's the problem that a parked H2-powered vehicle would lose 50% of it H2 in a week. Then it burns with an invisible flame. Then there's the fact that the range proportions of air to H2 that makes an explosive mixture is 10 times wider than that for any other common flammable gas (and petrol vapour) so a leak is much more likely to ignite. 98% of H2 is currently made from natural gas (yep... a fossil fuel). Making it from electrolysing water can be done but at woeful efficiency compared with just putting it in a battery... and you need pure water to electrolyse, hardly something that we have in abundance in much of the world. The list is endless - and the whole idea, daft.

[@martinwinlow]

@ShaunDoesMusic Shaun - I'd stick to music, mate! Sorry, but your argument holds no water (what would hospitals do with H2?!) The 'minor' alterations to use H2 instead of ... what?... are not small at all, you still have to install infrastructure (at vast expense), you still have to make the H2 by steam reforming natural gas (so its basically still a fossil-fuel) or electrolysis - and both processes use so much electricity it ends up being a hugely inefficient and wasteful process. On top of all that doing the same by using simple and cheap batteries is a vastly more practical, sensible, efficient and cost-effective route. And if you haven't read it yet, see "planetforlife.com/h2/index.html

[@martinwinlow]

@ShaunDoesMusic Sorry, but your comment was so rambling and silly that I just applied the same logic to what you *were* saying to what I *thought* you were saying. So, ultimately, you want to replace one stinking festering mess on the face of the planet (oil) with a nuclear one... and 'clean the place up' at the same time?

[@martinwinlow]

@S G What like Nicola's (non-existent) trucks you mean? Now under investigation for fraud for (amongst other things) implying that their H2-powered demonstration truck barreling along a road was actually just rolling downhill with the camera angle set to make it look level? I don't doubt that H2FC technology *might* be practical (eventually) or that the infrastructure *could* be built but at what cost and to what end? So that we can throw away 2/3 of the clean energy used to make the H2 (and then convert it back to electricity again) rather than just store it in batteries or pumped storage facilities (and other similar systems) using technology and products off the shelf *right now* at 1/5 - 1/10 the cost? ...And using an infrastructure that is 95% already in place (the national grid)?

[@martinwinlow]

@S G And it's like you are suggesting our governments have never got things cosmically wrong before (er... Dieselgate?... just for starters .. not to mention Covid-19!). And yes, they are spending billions and they will regret it because it will all come to nought compared to (principally) EVs and battery storage. And there are still only barely more than 100 H2 filling stations in all of Europe compared to 90 THOUSAND existing traditional filling stations and *hundreds of millions* of places to charge an EV (basically any standard power socket let alone the existing 150 thousand 'proper' ones). Seriously - H2FCs are the dumbest solution looking for a problem we have seen in a very long time.

[@patmat.]

5:40 should read "Electrolysis". You need to factor in the weight difference between EV and HV, as well as the energy to make and dispose EV batteries vs H2 cells.

[@jamesthrbr]

In addition, something that is rarely mentioned is the increased road wear of battery vehicles, due to their greater weight compared to HV's. The incremental road repair incurs economic and environmental costs, as well as using additional energy.

[@zachm4635]

That was the best intro yet

[@milkywegian]

Reeeeeeee

[@lilrabbit8203]

So true

[@opheliabawles9646]

That was better than when Gerald got a Toyota Pious in South Park.

[@metanumia]

Bork, bork, bork, BOOORRRK!!!

[@alexbutragueno737]

Some of the comments are forgetting that not everyone lives in the US/UK. For example I live in Spain where getting an EV isn't an option because how we live. We live in apartments and the older ones haven't a parking lot. We are not able to charge an EV when we are at home or at work. And so a hydrogen car is a good solution for us. I think that Japan has the same problem, that's why their government is investing in fuel-cell cars. It's a good solution for people that doesn't live in an "American-like" suburb.

[@tommym1966]

Exactly this. The bulk of the worlds urban population doesn't live in houses with garages. They live in apartments or blocks with on street parking. For most of these fuel cells make more sense.

[@srikanna4597]

You still have to park somewhere. It's easy to add a charge point anywhere. yes. It may be not there currently. But we have electricity everywhere. It's not that hard or expensive to add charge points. And don't forget, building a hydrogen infrastructure is going to be orders of magnitude more expensive.

[@tommym1966]

@@srikanna4597 Petrol stations are everywhere and can be converted. Adding charge points to every street with multiple connections would be a massive investment. The obvious solution is a mix of hydrogen and EV options and no doubt Toyota sees that as the future.

[@TabulaRasa001]

I've seen some cities like Paris looking to add charging stations for street parking as well.

[@SmR8008]

We are starting to see charging points in some streets in the UK and many larger employers are installing the same. However I favour the hydrogen solution, specifically for the range/mileage. Having to charge an EV every 100 miles or so doesn't sit well with me. If I did a 400 mile journey, that could add an extra 3-4 hrs to my journey😕

[@colinsmith1495]

I think the most amazing piece of this is that, even with all the losses gasoline experiences, it's still the most energy-dense option to power cars. Hydrogen, as impressive as it is, isn't quite as powerful, and batteries still struggle to get as much energy into as little space.

[@steverandall5814]

The NOx pollution for hydrogen burned as motor fuel is off the charts, along with a long list of other problems. kzbin.info/www/bejne/naaUp2qabJKKnpI

[@Hobyarman]

I love Nikola's idea of having a small battery for your daily commute and a hydrogen tank for long trips....

[@JeanPierreWhite]

I love the idea of charging the battery. This is practical since electricity is everywhere there is a structure. Its easy to add charging stations. Hydrogen isn't widely available outside California, so you won't get very far. You can check out but you can never leave.

[@Hobyarman]

@@JeanPierreWhite charging isn't practical in my business

[@JeanPierreWhite]

@@Hobyarman Gotcha. I suggest you stick to fossil fuels then. Hydrogen won't help. A maximum of 36 cars can refuel in a 24 hour period at a Hydrogen fueling station. It would be a bummer if you were number 37 huh? www.greencarreports.com/news/1099548_gas-electricity-hydrogen-how-many-cars-can-fuel-and-what-will-it-cost

[@Hobyarman]

@@JeanPierreWhite I doubt long haul trucks in Australia will be able to run on battery except for re-gen breaking. Batteries also largely restrict the load carrying capacity. They are currently rolling out hydrogen stations along these roots which shouldn't be too numerous or difficult. Also taking about producing the hydrogen on site with solar and wind. I did think hydrogen for the average driver is silly bit to have the option to use is as a boost for long range driving makes a lot of sense.

[@Hobyarman]

The tech will get better

[@StarGazer2001x]

My car runs on dinosaur tears...

[@ronm7114]

how exactly is this funny? Just curious.

[@Sorbe1]

@@ronm7114 My car runs on Liberal Tears LOL

[@radioanon4535]

@Bob Desombre Amobea

[@diymicha4905]

Plastic is made from oil, oil is made from dinosaurs, so plastic dinosaurs are made from real dinosaurs.

[@NihilistAlien]

@@diymicha4905 wow......

[@chrismccormack8237]

The math was off on the percent efficiencies. For Hydrogen, it should have been .96 x .94 x .92 x .60 = .498 or about 50% efficient For EV, it should have been .96 x .94 x .92 x .98 = .814 or about 81% efficient It still comes out in favor of EVs, but bad math bothers me.

[@dtgs4502]

Same mistake for same topic by Real Engineering.

[@misium]

Errors like that live a bad taste.

[@myjizzureye]

@@misium O.o ...... live?

[@Traq]

The first percentages for hydrogen are losses and need to be converted to factors as you did. the operational efficiency has already been converted. Thus: .96 x .94 x .92 x .42 = ,348 -> 35% efficiency

[@Traq]

@Marc Jackson I was just going by the 42% given in the video

[@PizikSpaeth]

"Green-on" - Thank you so much for making my day XD

[@Robostomp]

Same here!!😂

[@DraconaiMac]

Joe - I just really love your videos. They're fun, informative and (for the most part) light-hearted. Damned good job

[@adrianroed2178]

6:35 but you have to multiply the percentages(well, the power efficiencies), not add them, so it would be 49.9% and 81.3% efficiency respectively. With the way you're doing the math, a system with 2 times 50% efficiency would result in literally no energy output, while in reality, it would have an energy output of 25% Aaaaand you make the same mistake in all other percentage calculations.

[@meat-hook]

It's cumulative not compound.

[@Joeleesander]

These comments are gold, cuz I just don't trust this dudes reporting

[@PhysicsManual]

It depends how he calculated these results. He does say this results in "another" X% loss of efficiency, so you could imagine he calculates them compound then shows the additive effect... although for the life of me i cannot understand why someone would do this because thats just confusing as hell....

[@kevinrudd9096]

Instead on every one guesing, Y dosn't he clear the air, by explaining his calculations to reach his Conclusion. Thats all.

[@dinoschachten]

Hahaha, realised that, too. But then I thought "no... he must have done the math to calculate what percentage it shaves of the total...". He probably just did it wrong. But the bottom line remains mostly untouched. Though I'm pretty sure he didn't subtract anything for the conversion of energy for battery-electric cars. Say your electric car was running on electricity from a coal power plant etc.

[@chrisd6736]

What if instead of semi trucks carrying hydrogen, they used zeppelins!?! Boom. Problem solved.

[@vonshroom2068]

Indeed...BOOM! XD Sorry had to...

[@neojack333]

just repurposing the oil pipelines would do

[@Sonex1542]

@@neojack333 that is ridiculous. H2 needs to be under pressure and cold, like really cold. Petroleum pipelines won't work. H2 is a dumb idea. It's completely inefficient, dangerous, bad for the environment, it should be killed as an idea.

[@MicrophonicFool]

You're on FIRE!

[@TiagoTiagoT]

Boom. Oh, the humanity!

[@JustWatchingVideo56]

1:50 Joe: Something went wrong there. Me: Nothing went wrong there. You won.

[@puellanivis]

“Hydrogen Fuel Cells, or HFCs as they’re also called.” me: Uh… Hydrofluorocarbons?

[@thetourist6567]

kzbin.info/www/bejne/bGmkkHuGjqyXos0

[@nyax129]

best intro yet man!!!!

[@mildlifeisatrisk5727]

Bork bork bork 😊

[@GeneralBlackNorway]

A small correction for you, you don't add/subtract percentages together, you multiply them to get the correct result. For example if you add (subtract) 50% and 50% you get 0 (0.5 - 0.5 = 0), but in reality it is 25% (0.5 * 0.5 = 0.25). So the corrected percentages would be *33.97%* efficiency for Hydrogen electric and *77.29%* efficiency for battery electric. For gas I calculated the efficiency at 14.69% (on this one we seem to be in agreement xD).

[@ThisRandomUsername]

Edit 2: I really should start watching until the end before correcting people. You're entirely correct with your calculations for the values Joe put in the video. The additional losses during production and transportation do give me *33.97%* efficiency and *77.29%* for batteries. Yes! A small correction on your correction: 100% (energy in hydrogen) * 96% (electric motor efficiency) * 94% (inverter efficiency) * 92% (charging efficiency) * 60% (fuel cell efficiency) is 49,8% for fuel cells, and 81,36% for batteries. Edit 1: loss -> efficiency

[@GeneralBlackNorway]

@@ThisRandomUsername You forgot the production of hydrogen, he mentioned that the best case scenario there was another 20% loss! Idk what you missed with the battery calculation, but watch through the whole video, not all are mentioned in the same place.

[@ThisRandomUsername]

@@GeneralBlackNorway Of course! Sorry, I had paused the video when I noticed his mistake, and went to comment about it, saw your comment, and noticed the discrepancy. My bad.

[@GeneralBlackNorway]

@@ThisRandomUsername No problem man :D Always nice to see other people pay attention and care to correct me, even though you got it wrong this time xD

[@andremoreiragraca]

you, sirs, are SUPER NERDS! (tchun run)

[@rr3861]

let 5 years pass, let me see you "recycle" that one tone battery

[@BenState]

already being done.

[@rr3861]

Being done and being applied on a mass scale are two different things. Same with plastic, despite recycling being "done"... we have a large plastic spot in the ocean.

[@nielsherzberg2413]

@Wemple The Problem is you cant recycle everything so you are always left with trash plastic that ends up in rivers. And it would help third world countrys a lot If First world countrys wouldn't sell their Trash to them.

[@RoadRashSpirit]

@@rr3861 Dont think scaling is going to be a problem as more batteries need to be recycled. Its worth while for supply and demand a long side mining. Hydrogen is not imune to recycling issues. The tanks when using composites have a 5 year life span. Obviously metal tanks can be replaced easier but there must be a good reason why the fuel cell industry have being chasing better storage options. So far it doesnt seem to be a reality with low pressure storage often requiring a lot of energy to re-release the hydrogen. Its not that they might not find a solution but batteries are something we are already implementing today.

[@rr3861]

@@RoadRashSpirit Recycling Li compounds is one thing, recyclizing steal is another. Yes Hydrogen has a long way to go and yes batteries are in high use today. But we cannot compare the byproducts of one to the other. you also need high energy to create de Li + polymers, including the mining of Li2O and the production that includes substances that are not environmentally friendly.

[@scottthomas3792]

The first electric car I saw was a Citicar owned by the physics teacher when I was in high school back in 1977. It like both futuristic and cartoonish at the same time. Lead acid batteries under the seat powered it...I think the range was around 30 miles...she drove it around the school parking lot for the class.

[@evaristegalois6282]

Joe: “Are you turned on right now?” Woman: “What?” Joe: “What?”

[@stephaniesummer2663]

_I have a green on_

[@quintespeed]

EV's don't "run", they're either off or turned on.

[@Master_Therion]

I'm also sexually aroused by environmentalism. For example, I love forests, they give me wood.

[@danijelandroid]

I bet that woman is his wife/girlfriend.

[@AnEnemyAnemone1]

6:00 when calculating the efficiencies, shouldn’t you be multiplying instead of adding/subtracting? For example, if I put energy through system A which is 60% efficient, then through system B which is 50% efficient, the entire process has an efficiency of (50% * 60% =) 30%. Either I’m missing something or a science channel has just screwed up high school math. Edit: looks like many others have pointed this out in the comments. I guess I shouldn’t have expected too much from a pop sci channel

[@QuantumSeanyGlass]

You're right. This doesn't make a huge difference, but the correct numbers, given the efficiencies listed in the video, are: 81% efficient for electric vehicles 50% efficient for hfc vehicles, discounting hydrogen generation losses 34% efficient for hfc vehicles with hydrogen generation losses. and he did the math for gas cars correctly

[@th3b0yg]

@The Truth of the Matter he is...but that doesn't fix the problem. With one big system you still multiply efficiencies, not add.

[@Kris_M]

The losses could be expressed against the initial 100% input. How much of our 100% input goes to what? 20% to loss A, 20% to loss B, and 60% effective use. You can add these losses up. But expressed as sequential efficiencies that would be A is 80%, B is 75%, and those you can't add up. The former also fits with displaying the losses on a pie chart.

[@urbancraft2372]

Thank you! Yes! Very suspect numbers

[@movax20h]

If you take a loss x, and loss y, for small values of x and y, x+y is very close to 1-(1-x)*(1-y), because: it is 1 - (1 - x - y - xy) = x+y+xy, for small values of x and y, the term x*y is extremally small and can be ignored. It can be ignored even if only one of them is small, and the other is kind of average. 3% and 30%. Simple way: 33% total loss. Actual loss: 32%.

[@tylerdoop]

I really like your comparison of charging your car and charging your phone vs filling up at the gas station and filling up at the "hydrostation"

[@Psi-Storm]

He oversimplified the fueling process of hydrogen. 1. The stations can't just be build on top of regular stations, because there are additional safety concerns that prohibit many locations. 2. The fueling process might take only 5 minutes, but after that time a pump has to reapply pressure to the big storage tanks. With the current pumping stations, you can't fill up more than 5-6 cars per hour.

[@psicomush]

well, that escalated quickly 😂 green-ON!!

[@cesiumion]

We can run every car on electricity if we bring back the THORIUM REACTORS

[@mdxggxek1909]

there is actually a technique to generate hydrogen from nuclear reactors without an electricity step. It's called the Sulfur-iodine cycle

[@Volvith]

@@mdxggxek1909 If i remember correctly the process requires a metric fuckton of heat. (800+ degrees celsius?) There might be some safety-problems with the implementation of this process, but an interesting idea nonetheless...

[@ImpetuouslyInsane]

@@Volvith Most nuclear plants run at that temperature on average anyway, just use the waste heat on way to the exchanger to do the process.

[@Patchuchan]

Thorium really needs to get more funding as it offers most of the advantages of fusion today as thorium reactors have been operated in the past. en.wikipedia.org/wiki/Thorium_fuel_cycle

[@Veritas-invenitur]

Thorium Reactors will most likely never take off.

[@LaunchPadAstronomy]

Agree 100 on the idea of HFCs vs. EVs. It's not a zero-sum game and I can see a market for both. Excellent job as usual Joe and that was a fantastic intro to boot!

[@1_2_die2]

More like HFC + EV vs. ICE

[@homomorphic]

Ok, you still seem to be absolutely 100% ignorant, since you use the incorrect acronyms FCV and EV rather than the actual acronyms which is FCEV (Fuel Cell Electric Vehicle) and BEV (Battery Electric Vehicle). I have both a Chevy Bolt and a Toyota Mirai (I have put 52,000 miles on the MIrai) and I can assure you that both vehicles are EVs.

[@LaunchPadAstronomy]

@@homomorphic thanks, there's quite a few acronyms out there so I wasn't sure if I was using the correct terms. And thank you for the kind words, and for driving electric!

[@tigertoo01]

Where do you park your car at the moment? Do you have a car? Why can't your parking spot have a charge point? It doesn't have to be connected directly to meter at home. There will be companies who will provide this service for countries such as yours

[@davidrosner6267]

Technologies developed for one type of EV may in some cases apply to the other... ...both the FCEV and BEV markets will continue to grow as they are currently until one starts to predominate and becomes the eventual successor to gasoline. BEVs are taking off faster but both are rapidly emerging technologies...

[@ExaltedWarrior]

You also failed to mention that you're DRIVING THE HINDENBURG! (in my Arthur voice)

[@schmingusss]

Oh the humanity!!!

[@MateusMeurer]

It makes me think about how many alternatives and the developments they could have had along our history. Could we have taken a path in the past that had way more potential and we just didn't see it back in the day, meaning our technology could potentially by way ahead now?

[@JMDinOKC]

The putative hydrogen economy that was promoted in the 60s and 70s was predicated on the assumption that the electric power for the hydrogen economy would be supplied by nuclear power, which was going to be too cheap to meter. Addendum: I really didn't expect that a historical remark that I posted almost as an afterthought would ignite a War of the Commenters. The exchange (which is the same kind of euphemism as "nuclear exchange", yes, sarcasm intended) is worth its own Joe video.

[@neutrino78x]

it would be, if people weren't afraid of it. instead you have groups like greenpeace which ironically try everything they can to make nuclear the most expensive form of power...even tough it does not pollute their air and water at all.

[@Fernweh4x4andadventure]

Is their potential to use salt or salty water as a catalyst to make hydrogen, I know you mentioned electrolysis takes a bit of power, but considering we already have de-salination plants producing clean water the by product is salty water that’s pumped back into the sea, couldn’t we use that (thought there was a car that ran in salt water? )

[@danielgloyd4529]

@Mr Cabot Show me on the doll where the nuclear power plant hurt you. There are multiple hundreds of nuclear power plants in operation around the world the vast majority with no incident ever in their lifespan. The technology has vastly improved from the 70s and 80s when we stopped building them in the USA. Yes it was because of lobbyists and fearmongering.

[@costakeith9048]

@Mr Cabot Though many of your points are just plain wrong, there are several nuclear power plants currently operating that use salt, not fresh, water, for example, the biggest problem is you offer no effective alternative. Solar simply isn't economically viable and will likely never be, it simply doesn't effectively scale like other forms of power production and it can't be reliably and consistently produced. Solar is a waste of money that would be better used for almost any other form of power generation (with the possible exception of wind, another horribly inefficient and unreliable power source). Solar also relies on rare earth metals, which are no more common in the earth's crust than uranium, but are needed in far greater quantities for solar energy production than uranium for fission energy production. So-called 'renewables' (with the exception of hydroelectric) are a fool's errand. If you want a real solution to energy production, deregulate nuclear and indemnify nuclear power producers from liability for damages that happen due to events outside their control, we'll see electricity prices fall by an order of magnitude, the economic benefit of which would more than make up for the occasional loss of containment; and, despite all the fear-mongering about radiation, it's not nearly as dangerous as people want to claim. The only real challenger to deregulated nuclear power would be natural gas, which being almost free and enjoying exceedingly low transportation costs due to the nation-wide pipeline network, will remain an attractive alternative for centuries to come.

[@costakeith9048]

​@Mr Cabot The weapons aspect is simply a beneficial side effect of the nuclear industry, regardless of what energy source we use it is imperative that we lead the world in thermonuclear warfare capabilities. As concerned as you are about global warming, nuclear war is a more pressing and immediate threat, something highly likely to have a significant impact on the world within a decade or two, and we need to ensure we are in a position to win that war. We have a slight edge over Russia today, but things would look a lot brighter if we had more reserves and if we had our missiles outfitted with their maximum number of warheads. But I think you made it clear where you're coming from, you're just afraid of nuclear war and are transferring this irrational fear into an even more irrational fear of nuclear power. Nuclear technology, including weaponry, is just part of the world today and we have to accept that it eventually will be employed again. Whether you're making a bomb or a power plant, nothing is as good as nuclear.

[@TOMiX1024]

I hate to be pedantic here, but the efficiencies multiply and don't sum up... So 50% loss at one stage and 50% loss at another stage does not give you 0%, but 25% = (100%-50%) * (100%-50%) So at 6:36 the total loss for hydrogen fuel cells is approx. 50.2% and the efficiency is approx. 49.8%. For the batteries the error is not that big: It's roughly 18.6% loss and 81.4% efficiency. But that does not make me not love your videos!

[@kolelokaram8541]

Correct I'm surprised that no one else pointed that out.

[@TOMiX1024]

@@kolelokaram8541 It's a very common mistake, though. And for small losses (in this context) the introduced error is very small.

[@MNSalbert]

I was about to say it too. Thanks for saving me the time to calculate the percentages 👍

[@firebush1343]

never mind the minor fact that water vapor is the worst greenhouse gas.....

[@AngelLestat2]

and many other errors with efficiencies and data: List of all the things he is wrong: 1-Fuel cells vehicles are also EV, to difference fuel cell from batteries you should use FCEV or BEV. 2-The extra range is not much about the weight (but it helps), is about cost! To double the range with batteries you need to double the amount of batteries which doubles the cost, with fuel cells you just need to increase the tank diameter by 25%. 3-The power from the fuel cell goes directly to the engine most of the time, the battery is very small and it is almost always at full, it is used to keep systems on or in standby. 4-Today the energy of compression is 12%, but now there are new methods that compress hydrogen by electrochemical compression which is more silent, it takes way less space, and more efficient 8% for 700 bar. 5-Is not about efficiency, is about cost! And here's the best benefit of hydrogen, because it could be used to balance the grid using just intermittent sources like solar and wind, with over production and splitting water with all the excess and injecting all that h2 to the natural gas grid, that h2 can be extracted pure in any point of the net with simple filters and be used in all the apps which batteries are not good like (trucks, ships, airplanes, or any utility vehicle), solving the co2 problem in those 2 energy sectors in which batteries and clean sources cant by their own. You can make hydrogen when the electricity cost is cheap, even negative. So some days you would be almost doing hydrogen for free, batteries can not take advantage of those times because they can only store energy over 4 hours in a cost efficient way, hydrogen can store power over months. 6- When hydrogen infrastructure and devices will start to cover more applications, it means anyone would be able to make hydrogen in their own houses, they would be even able to inject hydrogen into the natural gas grid and get paid by that, the same as we do with the power grid from solar panels. 7- Electrolysis efficiency today is at 83% (with 20 bar compression) or 90% without compression, and you can achieve up to 100% with the new reversible solid oxide fuel cells in development, because they use the waste heat from the fuel cell mode to reduce the amount of electricity needed for the electrolysis mode, no need for platinum. 8- Why a FCEV would have higher loss in the motor and in the inverter vs a BEV?? Have you lost your mind?? 9- It does not matter if the power source is clean or not, we have to start from somewhere and batteries and hydrogen helps to increase the share of solar and wind into the power grid. 10- The cost of gasoline is the same than hydrogen, it requires only 5 kg of hydrogen to match the range of a gasoline vehicle. In addition if hydrogen is used to balance the excess of power, then it would become much cheaper, because today there is no cheaper energy source than solar and wind. 11- What is the future for hydrogen?? you even bother to make a research?? Take a look to China, Japan, Australia, germany, england wants to start, and many other countries.. All are starting with small projects of hydrogen production and injecting the h2 into the natural gas grid. China has prepare millions of fuel cell buses and trucks for 2021. About cars.. for city cars, BEV are more reasonable, for vehicles that requires higher range or fast recharge, then FCEV are more reasonable. Is not a competence.. Both technologies help, both full fill different roles.

[@mariehansler]

Wow...great job Joe...you always find a way to make science, fun...learnable(if that's a word) and sarcastically funny. Awesome content.

[@johnpoirier5626]

The technology of hydrogen fuel cells has advanced considerably. There is a reason that Fedex, Amazon, Walmart, Target, and many other companies use fuel cells in all of their forklifts, long-haul delivery trucks, and much of their production equipment.

[@louisvisagie283]

LOL, BEST INTRO EVER.

[@besmart]

I learned a ton from this video, great job!

[@PistonAvatarGuy]

Some corrections that you should be aware of: HFCVs are not lighter than BEVs. The Model 3 weighs less than the Mirai, has more power and about the same amount of range. You can't produce hydrogen with solar panels right at the filling station, you'd need an absolutely ENORMOUS area of solar panels to keep up with demand and to cover the inefficiency of hydrogen production and use. HFCVs are TERRIBLE performers, the Mirai has less power than most economy cars and is so heavy that it ends up being much slower than most economy cars.

[@riloh58]

It's Okay To Be Smart - I always learn loads from Joe’s videos. An excellent channel indeed.

[@AA-Ashley]

Hey smart people.

[@recoilrob324]

Making hydrogen from natural gas is the cheapest and easiest way.....plus we have LOTS of natural gas and aren't going to run out any time soon. I sit now above the Marcellus deposit which has enough gas to power the entire USA for about 300 years...and that's if we converted all energy uses to natural gas. Yes...LOTS of it. Then...underneath the Marcellus is the Utica...which has multiples as much, so anyone worrying that we'll run out of natural gas is wrong. 'Lets destroy the economy so we won't run out of energy 1000 years from now!' GREAT idea! I'm in....where do I sign?

[@RedBatteryHead]

@@recoilrob324 not a matter of enough. We just wouldn't want to burn more when it can be done without, right!?

[@InservioLetum]

"summing went wrong there" Had to pause because I was CRYING with laughter

[@westleywest7259]

They could transport the hydrogen in Tesla semi trucks... 😂

[@kashutosh9132]

🤣

[@ThePrimalEarth]

Are you turned on right now? NO WHAT? LMAO CLASSIC JOE! Tho is why you’re so awsome!

[@mildlifeisatrisk5727]

"My car is biodegradable and will feed a thousand birds when I'm done with" -- dude 😂😂😂 Loved the idea though, I totally want one now...

[@picoallen]

A lot of people have on-street parking or live in flats where home charging isn't possible. Hydrogen may be the best solution in that case.

[@DjDolHaus86]

Unless we want a bunch of loose extension cables trailing dangerously across the pavement in 20yrs time we already need to start making amendments to the routing and scale of underground power networks. Major service installations like this takes years to do particularly when you're potentially talking about installing charging points on every residential street and city block, this of course isn't mentioning the cost for all those man hours and all that extra copper cable. I see a point in the future where EVs are a viable and affordable option for a lot of commuters but they simply can't get one because there is nowhere to plug the thing in overnight

[@cocoshort6528]

@@chauhannishith it may be easier than having hydrogean pumps around tho

[@bobh9492]

Cities already have meters sticking out of every sidewalk, the same can be done for chargers, stop pretending we have to fill every edge case for your convenience.

[@eirobotix3881]

Or there may be a Battery Truck type service that brings a large battery to your car & fast charges it on the spot. You may even allow them remote access to your charge port so you came to walk out to an adequately charged EV as you so desire

[@eirobotix3881]

@Allen Loser becuase batteries can deliver lots of power in a short time which is what you need to recharge an EV quicky. You can do it with a diesel generator but it would be very big & use a lot of diesel which defeats the purpose from a carbon emissions & cost point if view. A 250kW engine-generator would look like a Genset that powers a building in a blackout scnerio. It is essentially the engine out of a large truck or earth moving piece of equipment with a massive generator & all the associated peripheral systems. They are far more complex, expensive, polluting & many other negatives than a similar battery energy system.

[@RumenBlack]

I think the eventual solution will be a combination of the two. Electric Vehicles seem ideal for personal passenger transport but not so much cargo due to the long times to refuel. I think hydrogen vehicles will end up taking over the shipping industry and mass transportation due to very fast refuelling.

[@bearsgarage272]

"Something went wrong there" will now be my default response to any situation with less than favorable outcome

[@nathan43082]

My big problem is with the initial premise: that we must have personal transportation vehicles for everything. Automobiles and their kin have been around for so long that we now take them for granted, forgetting that there used to be a time before them not too long ago, when you had to walk, bicycle or take some form of animal or animal-drawn box from place to place. We’ve actually structured entire living situations around automobiles, especially here in the USA, like suburbia, shopping malls, and the like. There are many places in larger European cities where an automobile is unnecessary for most of the things you do because 1. They have very good public transportation infrastructures and 2. Their cities are more “walkable,” meaning you need not travel far for most of your needs. Perhaps the best, long-term solution is to move away from personal vehicles and our suburbia model, which is really nothing more than a caricature of “country living,” and instead build more walkable areas with public transportation, especially for long distances, so that automobiles are not as necessary.

[@Psycorde]

Personal transport is the ultimate freedom.

[@robsmith1a]

You are correct but I also think people like their own personal space and if they can afford it that is why in general they go for cars. My grandfather used to have a horse and cart, he would stop outside the pub, have a few drinks and then fall in the back of the cart and the horse knew the way home. Self driving cars still can't do that. Where I live life would be very inconvenient without a car but if I lived in central London I would walk / use public transport and not have a car.

[@mycount64]

We live in a capitalist consumer society. Our religion is worshipping stuff to buy working towards this raising progeny to continue this. We attach our value as a person how we contribute to this model. Technology is irrelevant. We are meant to be hunter gathers a d left that 10k years ago. We may or may not evolve through the transition...jury is still out.

[@thematicschematic]

This. The car has been responsible for the atomisation of the human living experience, the destruction of communities and the devastation of the environment. Living in the UK, I have never needed a car, though I still see the damage that particular technology has done to our countryside and cities every day.

[@kevinkent6351]

That’s not going to happen in the US any time soon so get used to it.

[@Nazarje12]

Efficiencies arent summed, they are multiplied. Except if they are defined in some weird way. Just saying.

[@gobblenater]

matic pečovnik yeah kinda torpedoed his whole point with that basic misunderstanding of how things work. Not even that I disagree but I wouldnt try ti convince anybody with this video.

[@maxk4324]

Depends on how his sources defined it. I bet he found a report that converted all percentages into percent loss from the total energy potential of the initial energy mass. So in the case of gas it was percent loss from the total energy mass of the oil (at least the part of it that makes gasoline) as it comes right out of the ground. In that case it would be summed as it was all normalized off of a single bench mark mass of energy

[@mpoisot]

I wondered about that too. It would be great if Joe could weight in.

[@tahvohck]

He does appear to have multiplied for the Hydrogen efficiency later in the video (for the 27.3% efficiency value) so I suspect Max was correct about the way the sources were found.

[@michaeledwards2251]

He forgot the transmission losses for petrol vehicles giving an overall vehicle efficiency of only 10%. An opposed piston engine can double the fuel efficiency for petrol giving an overall efficiency of 20%. In the hydrogen fuel cell versus battery comparison he forgot the weight of fuel cells is determined by the power level you need but for batteries range determines the weight. It implies for longer ranges fuel cells win because they are lighter reducing losses.

[@lawrence18uk]

8:38 screen captions wrong? Joe says "electrolysis", graphic says "electric motor loss" - then he says "compression loss", graphic says "inverter loss" ??

[@ad-skyobsidion4267]

KZbin could be drunk

[@MarinelliBrosPodcast]

Him: Tesla Her: Hydrogen fuel cell Schwarzenegger: 8MPG HUMMER

[@FragFrog01]

Erm, just in case you were not being sarcastic: Schwarzenegger's hummer is electric.

[@user-nf9xc7ww7m]

Silly. Schwarzenegger runs on a fusion pellet drive located in the abdomen. T3...😋

[@1_2_die2]

Hillarious... FUNNY... Intro =) almost ludicrous.

[@user-un2gy7wf6o]

Video maker : Hydrogen is not something you can do at home . Me : evill laugh starts to show up

[@WilliamJones-Halibut-vq1fs]

I used to make it with my model train transformer and salt water. Makes chlorine on the other electrode and NaOH

[@Neojhun]

Good luck making enough even to match Model 3 SR capacity.

[@Xnukedbrain]

YES IT IS YOU FOOL. I EXTRACTED HYDROGEN FROM SALINE WATER VIA SIMPLE BATTERY POWERED ELECTROLYSIS WHEN I WAS 15 YEARS OLD IN JUNIOR HIGH SCHOOL SIENCE CLASS. IN ARIZONA, USA.

[@capnbilll2913]

@@Xnukedbrain How much electricity did you use per gram of hydrogen produced? What did you use for anode electrode? How much electrode oxidation occurred per gram of hydrogen?

[@gazza595]

@@Xnukedbrain But, ironically, didn't work out how caps lock works.

[@svilponis]

These efficiency calculations were a joke? It seems, that Joe does not know, what efficiency is and how it should be calculated.

[@patrickw.9169]

He is lucky that the sum of the losses wasn't superior at 100%, else he would have a problem.

[@JamieM20001996]

@@The93Vector He's a tesla fanboy with absolutely no background in science. Most of the time he's reading the wikipedia page verbatim or whatever elon's latest rambling on twitter has inspired him to talk about.

[@MrControll]

"All it takes is one Gas company to start outfitting it's stations with hydrogen pumps" Found this video not long after hearing that Shell might be doing just that.

[@Anand-qb1wp]

"I got a green on." 😂👍🏾

[@KimDabelsteinPetersen]

I think one thing was missed here: Hydrogen can be produced in "off-periods" - by this i mean that windturbines produce energy when there is wind, no matter if there is demand or not.. (and yes i know that there are strategies and methods to handle these) - but one way of handling this is to store the extra energy generated in these periods as hydrogen, and then use it later. Basically making the hydrogen the battery in which we store the excess energy.

[@theelectricmonk3909]

Totally agree - and IMHO this is how wind farms (which are currently hooked directly to the grid & have to switch themselves out if demand is low, not to mention the relative complexity of synching them to the grid) SHOULD work. Sure, generate directly to the grid if the demand is there; but if not, any excess = produce & store H2, which can then be burnt (or put through a huge fuel cell) to generate power if there's more demand than there is wind.

[@Top_Cheeze]

@@theelectricmonk3909 wind farms are not green, nuclear power is literally magnitudes greener than any bird killer park, I mean wind park we ever destroyed vast areas of land to put up, using industry that rely on fossil fuels, paving roads into the untouched nature in order to put up these inefficient bird killers just so some out of touch city dweller sniffing their own green vegan farts can imagine they did something good without lifting a finger yet again. The numbers don't lie, wind parks are not green.

[@alterthough]

@@Top_CheezeCan you provide source for your claims?

[@theelectricmonk3909]

@@Top_Cheeze I'm no fan of wind farms - and I do think Nuclear should be given much more of the base load to carry, replacing coal and oil. What would be really nice is if governments got serious about solving the problems associated with fusion power - either the US Polywell system, or the European Tokamak system - doesn't matter which one works first, so long as at least one of them works.

[@musaran2]

Problem is the electrolyzer is then under-utilized. And efficient ones seem to be expensive.

[@Sayuri81554]

"My car drinks dinosaur blood and is big enough inside to actually enjoy a greenon."

[@graham1034]

Assuming energy density continues to improve on battery tech it seems like HFC cars don't have much of a future. A few things that could change this are: - battery tech hits a major road block and doesn't improve beyond current levels - affordable home hydrogen production, just hook up to the tap and grid - improvements in hydrogen production tech I can see a world where performance cars use HFCs and daily drivers use batteries. Even without those hypotheticals, I can see hydrogen tech and infrastructure being used for long haul trucking, aviation, or any other area where distance/weight are major concerns.

[@ptolemyauletesxii8642]

Electricity is not nearly as ubiquitous and accessible as proponents of electic cars make out. I am a huge fan of electric cars, but a lot of videos like this one are made with North America in mind, where the majority of people have at least a driveway, if not a garage, where they park their car. In Europe most people park on the street, and often not anywhere close to where they live. I live in an apartment complex with parking out front just off the road, and further parking in behind the buildings. Even if I manage to get a spot out front of my flat, I would need to dangle an extension cord out the window, across the walkway to the entrance of the building, and over some bushes. If I have to park out back my car is 150 meters away from my flat, and surrounded by storage garages. In Europe creating the sort of infrastructure needed to charge electric cars 'at home' would require an enormous investment on the part of homeowners, local councils, landlords, etc. It's a real problem here for electric cars.

[@carlosbah4623]

And the electrical power increase at the garages, with hundreds of cars would require massive changes in electrical wiring, more powerststions and substation for each garage. Not feasible in most Europe where people lives in flats, piled with zero energy autonomy. No room for massive solar panels set up.

[@superwolf95]

yeah, in italy most old towns and big centers ban cars, i have to park mine 300m from my door basically in the middle of the country. The only possible solution to this is charging station for every parking spot, 4 millions of them in italy alone.

[@mattetjus]

Do you ever use your car to go grocery shopping? like most people? -> problem most likely solved..

[@jamesfarrell1116]

Greetings from Atlantic City New Jersey

[@matthewwriter9539]

Charge your car while you are at work.

[@MobiusHorizons]

Three notes: 1. Steam reforming of methane does release CO2, but Methane is a terrible greenhouse gas, so if you already have it and can't store it, it's actually greener to burn it than to let it escape into the atmosphere. Methane is one of the byproducts of some forms of composting, so it would be entirely reasonable for industrial composting to collect the methane and either store it as fuel, burn it to produce electricity, or steam reform it to produce Hydrogen. 2. Hydrogen is incredibly hard to store, especially at high pressures. The atoms literally leak straight through thick steel tanks. This would be a significant factor in the efficiency of transportation and use of hydrogen as a fuel for cars. IMO this is the single biggest reason not to pursue HFC technology for mobile applications. 3. If you just want to improve on gasoline with a technology that has higher efficiency and lower emissions, Methane is a much better choice than hydrogen. Methane is the cleanest hydrocarbon because it has a 4:1 Hydrogen to Carbon ratio, so you are mostly burning hydrogen, with very little carbon being burned (Octane is 2.25:1 Hydrogen). Methane is much much easier to store than Hydrogen giving equivalent range at much lower pressures lowering the weight of the tanks, and the danger involved in fueling it up. Methane fuel cells do exist and could provide a similar convenient packaging for electric propulsion as HFCs can. But IMO the biggest benefit is that for roughly ~$1000 you can retrofit existing vehicles to run on methane, allowing people to go green without waiting for all the used cars on the market to be replaced. IMO if we want to pursue a stepping stone technology to be used in places where EVs currently fall short, Methane is the way to go.

[@mattyrs4]

Building on this is what we're beginning to see with the new EV models. ~100kW is great for a car. However, for a truck, SUV, or something that's larger/less efficient were seeing batteries that are significantly larger. The announcement of the Tesla Semi brought with it a 1,000kW battery and touted the ability to charge to 80% in 30 minutes. This places a massive load on the power grid. 1 truck would utilize a 600V 2000A 3-phase service. Charging multiple trucks? The grid wasn't designed around this. For cars EVs are pretty sweet. But when you're talking about charging rate of 1.6MW/h you're introducing several issues that are all interrelated. 1. Heat - 1.6MW is a lot of power. 2. Power management - getting it wrong on a little Tesla or even a phone isn't a good day, this is significantly larger. 3. Grid supply and availability - your fleets needs may not be Sympatico with the local infrastructure 4. Heat - management and mitigation will be very important 5. Logistics externally - they don't make 2000A cords 6. Logistics internally - since Superconductors aren't a thing your internal charging system needs to be sufficient for charging at 1.6MW of input. 7. Weight - see above 8. Heat

[@lontongstroong]

Steam methane reforming needs very high energy consumption due to very endothermic nature of the reaction. Not to mention the steam production which is also energy-intensive and requires boiler-grade water. So it would've failed in terms of life cycle assessment. And ever heard of hydrogen storage in form of ammonia? Ammonia is easier to store than hydrogen and methane and conversion process of hydrogen into it is also a mature process (the Haber-Bosch process). Moreover, the reaction is spontaneous (it has negative Gibbs energy), thus allowing robust storage of intermittent electricity from renewables as well.

[@GerbenWulff]

Yes, I think methane has a chance as well. We see many cars on CNG these days and LNG is also growing rapidly for long haul transport in Europe. We can expect these to hybridize, combining CNG/LNG with a battery. The next step is to add a fuel cell. This will allow the gas engine to be downsized or even eliminated. I think what we see is more of an evolution than a revolution. EVs right now are just a niche product. The major change we see now is that traditional gasoline cars are getting replaced by mild hybrids. The traditional car is gone and most people haven't even noticed. Hybridization is increasing rapidly and cars are gradually getting electrified. At one point EVs will have a major share in the car market, but not in the near future.

[@MobiusHorizons]

@@lontongstroong Interesting I thought it was supposed to be more efficient than electrolysis, but I will have to look into it.

[@lontongstroong]

@@MobiusHorizons The process itself is pretty efficient, but it's not particularly green. But improvements have been made, for example replacement of the bulky, inefficient furnace with direct electric induction-based heating science.sciencemag.org/content/364/6442/756.abstract, which is exciting prospect and possibly could make SMR attractive again.

[@TxMustangProject]

Your wife is an absolute saint!🤣🤣🤣 That opening was priceless!☠️☠️☠️

[@seanswales1813]

Unless you can park in your own drive, (as over one third in the UK cannot), hydrogen makes a lot more sense

[@kylarstern7627]

'I got a Green on' oh Joe, you are Brilliant! If that was your wife then you need to include her in future vids, she was awesome! Well done mate :)

[@johndododoe1411]

Paid actor according to shout out at end of video.

[@joachim2464]

A tiny correction. Apollo spacecraft did use a fuel cell, but the hydrogen and oxygen the spacecraft carried was only for use on the fuel cell and enviromental control. The apollo spacecraft used hypergolic fuel for propulsion.

[@kennethferland5579]

And I believe the Astronauts drank the water from the fuel cell in Apollo, because they would have needed a water supply ANYWAY this meant the mass of all the hydrogen and oxygen for the capsule was basically 'free', likewise the process is exothermic and heated the capsule.

[@uneaverageME]

fun-fact on those hypergol. engines used to launch off of the lander - they were never test-fired. The hypergolic fuel ruined it after one use due to its harshness, so there was no way to test-fire it first on earth and still have it usable on the moon. When they were launching all alone off the moon's surface, they had to rely on an engine never turned on until that point (an engine that had to survive a rocket launch and the trip to the moons surface). Talk about ballsy move.

[@Nehmo]

@@uneaverageME You could test an identical device. It could be put through more vibration than you would expect on a moon trip.

[@ianelliot1127]

@@Nehmo yeah but in 1969 they didn't test them. The lander only needed to refire the engine once and because of this the engine wasn't tested

[@rstevewarmorycom]

Joachim Voldseth The DID re-use the water the cell produced for drinking and flash evaporators in their suits!! Their suit time on surface was limited by the water they carried in the suits and in the LEM!! The three commodities supplied in the "staple" connector between the edge of the CM and the SM were electricity, water, and oxygen.

[@martijn3151]

When comparing the two, you completely forgot the efficiency loss when creating electricity for your EV. You seem to assume that to be 100% efficient. Coal plants run at horrible efficiency levels and even cleaner energy such as solar power wastes a lot in the conversion. For a fair comparison you should include that loss as well. Or at least some average. And let’s not forget the vast amount of environmental damage lithium ion batteries incur because of the mining of these precious metals and the fact that the batteries only have a quite limited lifespan and need to be replaced regularly. But more importantly, how can you miss one of the most important advantages of hydrogen: creating it when overproducing electricity? Off shore wind parks can create vast amounts of hydrogen when the grid demand is low. This is perfectly useable as a fuel. It feels as if you had your mind already set on EV, the balance in this video is a bit off.

[@Simon-dm8zv]

@Supertech That was fake news. It takes about 50.000 kilometers to make up for battery production emissions. So about three years.

[@13darkfighter]

i fully agree with you. this video was on my recommended and it just sounds like someone trying to justify and flex his tesla while shitting on the in my opinion better alternative. it's the same thing that us gas car people like to do with electric cars. he should really reach out to toyota or even better hyundai for some insight because he is extremely shortsighted on this subject. there also are some purely mechanical things that make hydrogen cars better than purely ev's. look at how heavy a big ev battery is. it will run your tires down faster because of the pressure put on them compared to any lighter car and you'll have to replace them more often which is bad for the environment as well. looking at the other videos youtube recommends me from this dude he just seems like a doomer who really loves to talk things down

[@Simon-dm8zv]

ScoraX Apparently you think that hydrogen cars are better than BEVs but the only thing you can come up with is weight. A Toyota Mirai is not much lighter than a Model S.

[@13darkfighter]

@@Simon-dm8zv it's not that "i can't come up with morea than one thing" but that i don't really want to spend hours researching every single bit. i do think that they are better tho but well see how both options develop in the future since they are still in the early phase with their tech and both should become more environmentally friendly with enough time for development

[@Simon-dm8zv]

ScoraX That sounds better already. When you do your research (just some basics) about BEVs and FCEVs you will soon find out how stupid driving on hydrogen actually is and that the downsides of it cannot be solved by some simple technological development. Using hydrogen for vehicles in intrinsically inefficient, complex and expensive.

[@happylatino]

Yeaash, but grid losses are as high as 50% not 5% and on top of that local grids (usually) can't handle added 10amp continuous load on even half of serviced households

[@laurenssalens2377]

Same grid loss counts for the electricity transported to a hydrogen plant.

[@amicloud_yt]

Oh my god that intro killed me. I love your skits

[@siobhanharney1215]

I just cycle everywhere 😅

[@andredeketeleastutecomplex]

Smart, the rest of humanity seems to be clueless.

[@sijinvarghese6640]

#metoo! 😉

[@udaankhatola88]

As a college project we used hydrogen to run a two stroke engine. Was good experiment. Although cold start was difficult we did have to use a bit of petrol to start the engine.

[@gabedarrett1301]

What were some problems you ran into? Did it get too hot?

[@udaankhatola88]

@@gabedarrett1301 basically the engine wouldn't directly start when gave the first kick(it was a scooter engine) so we had to introduce a small amount of petrol for first-time start. After that the engine started on hydrogen. We used also used a valve to switch between hydrogen and petrol. It didn't get much hot, just the nominal amount as it normally would

[@ChrisCoxCycling]

People have a similar reaction when I say I mostly ride a bicycle. "How do you get shopping?" I put bags on my bike. "But how can you do a whole week's shopping?" I don't, I buy what I need every few days, and in the process I waste less food... "But what if it rains?" I wear a raincoat. "But what if it's hot?" I ride slower, or drink more water. Then e-bikes change that even more, and e-cargo bikes, wow, they're basically a car replacement altogether. Re-thinking how we live and move and get around is a challenge - be it changing what type of car we drive, or what type of trips we take with our car at all. But it's a re-think we all need to have because business as usual isn't sustainable.

[@geniumme2502]

waaiiiit thats the first time ever i cringe in one of you videos - did you just add up the efficiencies? thats supposed to be a multiplication with 1-loss or just the efficiency! if i pump water up a hill at 50% efficiency and then let it power a turbine at 50% efficiency have i then lost all my energy? no :D just 75% of it :) assuming all other numbers are correct thats 65% efficiency for electric and ~50% for hydrogen :) thats not as grim by far EDIT: This gets weirder o.o in the next step you do actually multiply but add up the other factors again >.> so by now the actual number is 34% efficiency if i didnt do any mistakes

[@DavidSmith-kd8mw]

Also, when comparing gasoline to EVs he starts one process with oil in the ground, but the other with electricity. Comparing EVs and hydrogen might be fair since they both start with electricity, but that isn't true with gas.

[@dexblack]

@@DavidSmith-kd8mw insideevs.com/news/332584/efficiency-compared-battery-electric-73-hydrogen-22-ice-13/ or you could just go look it up and check...

[@abioyenwankwo7308]

Well since we are also adding the extraction and transportation of resources to the inefficiency, wouldn't it make sense to then also take depreciation into account? Lithium batteries do not grow on trees (nor do they tend to be recycled), yet from the calculations it seems like lithium batteries do in fact grow on trees and then poof out of existance when empty (which you won't reach because the battery will be replaced long before it reaches zero charge). While for gas he takes drilling and refining into the efficiency calculation. And for hydrogen fuel cells, as far as I know they still haven't solved the matter of hydrogen embrittlement beyond saying "we're on it, I wouldn't worry too much". Which would cause parts to need to be replaced far more frequently because it is a pretty huge issue to have your fuel alter the mechanical properties of parts.

[@davidaustin6962]

The graphs seemed to indicate this, but when you multiplied the efficiencies (I tried this), you end up with his "total efficiency" number. In otherwords, blame the guy that created the graphics because they indicated he just added them up, but to get the total efficiency it's clear he multiplied them. It's hard to get good help.

[@erykczajkowski8226]

Do we really have to include transportation cost of hydrogen? Why not produce it directly in the gas (hydrogen) station? Or even at home? You just need to transport electricity then (and some water, but you already have infrastructure for that anyway). Yes that means some local investments, but also lack of rafinery plant, trucks etc.

[@Mitch3D]

The millions of people that are in apartments for the most part can't charge their EV's, that's honestly what makes me hesitate buying one.

[@vanleeuwenhoek]

Live in the city, park on the street; hardly an optimal arrangement for stringing a fast-charger cable out from the house.

[@OneEyedMonkey9000]

Mitch 3D That’s ’easily’ fixed; changing building codes so apartments have to have charging stations in the car park.

[@californiaplant-basedeater2761]

@@OneEyedMonkey9000 There are still tons of people who live where there isn't even a parking lot at their complex. However, spending 1 hour a week at a supercharger doesn't seem particularly life changing. Maybe they get rolled out at popular destinations where people spend time anyway and reservations could be made as well.

[@diymicha4905]

doesn't matter at all. If we want to keep this form of personal mobility at least in parts, there's no way around EVs.

[@theelectricmonk3909]

"The millions of people that are in apartments for the most part can't charge their EV's" - Hmm, I bet you can't refuel your petrol(gas)/diesel car in your apartment either...

[@joelbarraclough9011]

Hydrogen is the only real alternative for trucks and buses so this will eventually drive the infrastructure. Battery is to heavy and no range for a fully loaded semi.

[@dennismacwilliams196]

I've thought this is the way of the future, Having a small fill at your home...

[@juliuskingsley4434]

This dude reminds me of the Kiju scientist from Pacific rim.

[@jagadishgospat2548]

Yea sorta

[@raginglegends1]

In case you don’t know that guys name is Charlie Day he’s in one of the best shows of all time it’s always sunny in Philadelphia

[@Kay0Bot]

wait he is not?!

[@raginglegends1]

@@Kay0Bot no, that dudes name is Charlie Day this dudes name is Joe

[@JDSeg693]

I love that... Thanks I live near Boulder Colorado and there are a few guys that are.. let’s say similar .

[@fPonias1]

I'm sorry. I bet you have a hard time seeing through all the smug.

[@prehistoricpleb]

When you do an intro.... you do an EPIC HILARIOUS INTRO!!!!!!! 😂😂😂

[@42luke93]

I could care less if they use coal, natural gas, or etc. Since they have filters and stuff. It’s not just released in the air.