They make solar stations that will pull hydrogen right from the atmosphere. What carbon are you talking about…and you do realize the same power that would be used to make hydrogen in your example would also be charging batteries.
Hydrogen isn’t in the atmosphere. It’s 20.9% oxygen, 70% nitrogen and some trace other gases, none of which are hydrogen.
Hydrogen is produced either by splitting water (the H in H²O) or splitting hydrocarbons like Methane which produces CO² (the carbon part bonding with oxygen from the atmosphere, making that stuff we’re trying to cut back on).
That second method is why the fossil fuels companies are so keen on it. Hydrogen can be a repacked form of natural gas.
Yes totally forgot how there is no water in our atmosphere…forgot the globe just has water in a few places and humidity doesn’t exist…
Oh yes, that 1% water vapour (on average) that you want 2/3rds of.
Gimme a break. I don’t think your machine producing hydrogen “straight out of the atmosphere” is going to be fueling many cars.
jabjoe@feddit.uk 9 months ago
That is a waste of solar. It’s more efficient to put in batteries then kinetic. If there is no more batteries to put it in, you transmit the power over wires.
With hydrogen it’s wasteful to create from electricity, then wasteful to turn into kinetic. Its wasteful to store as it’s the smallest atom so escapes easily, it’s low density so needs compressing. Then, to move it, you have to move storage around instead of just transmit over wires.
nekusoul@lemmy.nekusoul.de 9 months ago
Exactly. And just to be clear, because it’s annoying me every time people gloss over this, it’s not just some percentage points lost in the conversion of energy, it’s actually ~75% of the energy that goes to waste, from energy production to the final motion of the wheels. EVs on the other hand only waste ~25% of energy. Even with the wishful thinking that the hydrogen can just be created in times of energy overproduction, you can’t beat a factor of 3.
jabjoe@feddit.uk 9 months ago
Yep. H2 cars are pushed by the ignorant or the corrupt (oil money).
SupraMario@lemmy.world 9 months ago
Hydrogen is basically free energy though. Using solar to pull it from the atmosphere and then it goes in an ICE motor. Stations like these can supply hydrogen basically anywhere without needing to run wires to it. Providing fuel to ICE powered hydrogen cars.
nekusoul@lemmy.nekusoul.de 9 months ago
It’s not free though. There’s such a thing called ‘opportunity costs’: If I have the choice between a ‘free candy machine’ that spits out one candy every hour, and one that spits out three candies every hour, I know what I’ll choose.
I also wasn’t aware you ware talking about ICE powered hydrogen cars, where the efficiency is even more comically abysmal.
frezik@midwest.social 9 months ago
You know that 75% loss of energy the GP mentioned above? That’s for hydrogen fuel cells, not hydrogen ICE. It’s even worse for ICE. Why the hell would we do that rather than putting that solar directly on the grid?
jaemo@sh.itjust.works 9 months ago
This is crackpottery and your repeatedly re-posting this assertion without citing anything isn’t really supporting your position.
Yes, yes, electrolysis is a thing.
No, it is not free.
FFS if you’re going to go for crazy theories why not dream big: here is a potential paint we could research for a few megacredits and buff our science to coat our walls and make hydrogen with. For not free but cheaper than electrolysis.
jabjoe@feddit.uk 9 months ago
Right now, it doesn’t seam like we energy to waste. Not until all the energy is clean. Also, it’s always going to be cheaper to use a lot less energy. Until energy is free, which it isn’t even with renewable because of install cost and maintainance cost.
SupraMario@lemmy.world 9 months ago
A…waste of solar…internal ICE hydrogen motors is what these would be used for not fuel cell hydrogen.
How are you wasting solar? Lol this makes no sense. These can be stood up anywhere, you cannot use these as super chargers for batteries…
frezik@midwest.social 9 months ago
Because you can put that electricity directly into the grid rather than wasting it making hydrogen.
SupraMario@lemmy.world 9 months ago
Lol that’s not the goal, the goal is to charge a car… you’re finding a problem to solve that’s not even in the same area…
jabjoe@feddit.uk 9 months ago
Look at the efficiency of the energy conversions. It is literally wasting solar.
SupraMario@lemmy.world 9 months ago
How is it wasted if it completely free energy? You cannot charge up electric cars quickly via solar…hell solar in general isn’t super efficient anyways lol