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Hyundai Nexo sets new world record 887.5 km travelled on single tank of hydrogen

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Re: Hyundai Nexo sets new world record 887.5 km travelled on single tank of hydrogen

#191

Post by kazoomonger »

AAA_Rating wrote: post #154
kazoomonger wrote: post #143

Earlier quoted context omitted.

I really just fucking love plugging in at home to charge (and so does my family, and no I'm not just saying that). I don't want "infrastructure". I would take even slower charging if it meant I got to charge at home. As-is, I'm very satisfied, and excited to see where EV tech goes. I'm sure in a few years the charging speed and range I've got now will be peanuts to what's out there. My maintenance costs have been tir…

> I really just fucking love plugging in at home to charge (and so does my family, and no I'm not just saying that) Why is that? When you purchase a car you buy the 24/7/365 availibility of said car. An EV is not availible to use 24/7/365. Regardless of the human biorythms you should get a discount because an EV is less of a car compared to an actual car which is always ready to go. With EVs you are not getting a dis…

This is honestly a rather bizarre take, but also not true. I almost never run out of battery at the end of the day, because I've got 230 miles of range. I plug the car in overnight, and it's fully charged in the morning, but if there were an emergency overnight, I'd still have plenty of range for getting to wherever. So I do have 24/7/365 availability? I even don't have to remember to stop by a gas station (or hydrogen station given the original post).

The few times I got super low on battery from driving around all day, I stopped by one of the dealerships near me and used their free Leaf-only supercharger, went inside and sat in their nice comfy chairs with free wifi for a bit. Note that I didn't have to do this and could've charged at home, but figured it would be nice to have the quick charge. I've done this less than half a dozen times in the whole time I've had the car, so this is not a general concern I have.

Re: Hyundai Nexo sets new world record 887.5 km travelled on single tank of hydrogen

#192

Post by baybal2 »

goodpoint wrote: post #181
baybal2 wrote: post #166

Earlier quoted context omitted.

How many people would be ready to drive a hydrogen bomb?

More than a gasoline bomb, hopefully. Gasoline is more dangerous.

Few kg of hydrogen are surely more dangerous than 50 kg of gasoline.

Re: Hyundai Nexo sets new world record 887.5 km travelled on single tank of hydrogen

#193

Post by kazoomonger »

ClumsyPilot wrote: post #159
AAA_Rating wrote: post #122

Earlier quoted context omitted.

Hydrogen has the same infrastructure as gasoline. A "recharge" takes as much as 40 seconds. EVs have a negative impact in the quality of life of those who buy them because they cost more and have the problem of recharging time. It's simply an own goal you are doing to your team which in this case is your family because of woke ideals. Lower mantainence costs is also a legend unless we are talking about Toyotas and Be…

If you'd rather have a car that's twice less efficient (and twice more expencise to fuel) than wait 20 minutes to charge, then you are living in a bubble of privilidge that does not reflect life priorities for 90% of folks out there

I wouldn't rather have such a car, it's just the benefits from charging at home are such that I'd still accept it.

Re: Hyundai Nexo sets new world record 887.5 km travelled on single tank of hydrogen

#195

Post by epistasis »

nobleach wrote: post #110
metalliqaz wrote: post #30

Earlier quoted context omitted.

Sounds like you're talking about distribution infrastructure, which is true but in my mind the biggest issue is efficiency. Storing and using H2 isn't very efficient, and current production techniques for H2 emit as much or more carbon as Diesel.

This is true. The current production techniques are basically using water. This is producing a ton of CO2 - the very opposite of what we're hoping to attain by running Hydrogen-powered vehicles. The hope is that we're able to leverage methane from animal droppings in the near future. Toyota is leading the research on this I believe.

Current production methods use natural gas, specifically methane. Animal droppings will never supply enough methane to be a significant source of energy.

The goal is to eventually produce hydrogen from water, through electrolysis. We have tech for this, but it's very expensive compared to our methane methods. Current electrolyzers are used for industrial applications. Spain is currently planning a huge deployment of electrolyzers to make ammonia, mostly for fertilizer.

And honestly, electrolyzed hydrogen will mostly be used in industry, and maybe some long-haul transport, but almost certainly will never make sense for cars. We will probably see hydrogen converted to methanol or ammonia or something else that's easier to handle than hydrogen. Though I do hear that hydrogen could be used with current ocean freighters with only a 10% loss of capacity, so there's some potential there.

Re: Hyundai Nexo sets new world record 887.5 km travelled on single tank of hydrogen

#196

Post by LaserToy »

NikolaNovak wrote: post #116
KMnO4 wrote: post #12

Since “tank” isn’t a unit of measure, I suppose anyone could trivially break the record with a larger tank. From the article: > The Nexo consumed 6.27kg of H2 For comparison with the other production H2 cars: Toyota Mirai: 5.6kg Honda Clarity: 5.0kg Seems like a promising technology. My understanding is that the current blocker is infrastructure. It’s hard to pressurize up to 10,000 PSI, so many facilities are only a…

Gack... one of my pet peeves: 90% of my friends compare car millage in terms of "how much money I spend to refuel", completely ignoring: 1. Significantly different tank sizes - 53L to 70L on regular cars. 2. Different prices of gas (suburbs vs downtown, 87 vs 91 octane, etc) 3. Different habits - some refuel at 1/3 left, 1/4 left, 50km left, yellow light on, needle at the end of the gauge, etc It drives me absolutely…

I kind of agree. The only thing that matters for me is a cost of ownership in $$$ over some period of time.

Re: Hyundai Nexo sets new world record 887.5 km travelled on single tank of hydrogen

#197

Post by SigmundA »

onychomys wrote: post #64
alex_young wrote: post #62

Hydrogen fuel is still a fossil fuel byproduct right? I’m not sure what the point of this is. It sure doesn’t seem like a green technology at this point.

Presumably it'll eventually be made by splitting water using electricity from renewable sources.

Splitting water with electricity then recombining in the fuel cell back to electricity is extremely inefficient compared to just charging a battery with eletricity.

Re: Hyundai Nexo sets new world record 887.5 km travelled on single tank of hydrogen

#198

Post by asciimov »

I've always hoped hydrogen would have taken off. Since you can convert gas engines to run off of hydrogen it would be easier to move the market to hydrogen than electric. Allowing us to build out the infrastructure first, then transition vehicles over to fuel cell.

Re: Hyundai Nexo sets new world record 887.5 km travelled on single tank of hydrogen

#199

Post by konschubert »

_ph_ wrote: post #176
KMnO4 wrote: post #12

Since “tank” isn’t a unit of measure, I suppose anyone could trivially break the record with a larger tank. From the article: > The Nexo consumed 6.27kg of H2 For comparison with the other production H2 cars: Toyota Mirai: 5.6kg Honda Clarity: 5.0kg Seems like a promising technology. My understanding is that the current blocker is infrastructure. It’s hard to pressurize up to 10,000 PSI, so many facilities are only a…

Beyond the missing expensive infrastructure, the big problem is energy efficiency. Moving forward, we have to switch every energy production to renewables. But for the same amount of electric energy produced, an electric car gets about 3x the mileage than producing "green" hydrogen and powering fuel cell cars with it. Hydrogen means at least 3x the electricity cost and for many years to come, we are going to struggle…

The bottleneck is not kwh of electricity produced, but storage. Hydrogen cards do well on that bottleneck.

Re: Hyundai Nexo sets new world record 887.5 km travelled on single tank of hydrogen

#200

Post by bsdetector »

dagw wrote: post #25
MattRix wrote: post #16

What is the appeal of a hydrogen car vs an eletric car? The range appears to be similar, but being able to charge at home is so much more convenient.

What is the appeal of a hydrogen car vs an eletric car? Fast 'charging' seems to be the big one. Also for larger engines (like trucks) you should get lower total weight compared to batteries.

Often overlooked is when you turn a hydrogen car off, it's off. Come back days or even months later and it should be exactly as you left it.

On the other hand a Tesla Model 3 requires a lot of energy to stay warm in the winter - some reports from the dead of winter of it taking 2000 watts just to stay warm. Under extreme conditions you can't leave it unplugged for a week or possibly even a weekend without concern over the battery charge and health.

There's better ways to insulate the battery of course, but there's always going to be some tradeoffs to maintain a safe battery temperature at rest and in use.

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