This past week, I attended the Micromobility Europe event in Amsterdam, where I saw many familiar company faces and several…
No.
Hydrogen is the future of nothing but energy scams.
It has the big advantage of easy long term energy storage. You can store power made by PV in summer and use it in winter.
It has the big advantage of easy long term energy storage.
Citation needed. Hydrogen leaks in spaceflight (where hydrogen is often used as a rocket fuel) is incredibly common because H2 is so freakin’ tiny.
In the future please be more clear you’re introducing a whole new step of conversion of hydrogen to ammonia, and then yet another step of conversion from ammonia back to hydrogen for use again. That’s not quite the “easy long term storage” your comment described.
It’s easy compared to the alternatives and time span for energy storage. You can de-couple production of energy with consumption. You can transport energy by help of hydrogen either by frozen, compressed gas, cold ammonia or through pipelines. That’s easy and hands on.
Try to transport energy through batteries. Duh. Or fusion energy (somewhen). Or nuclear energy. You always need a power grid.
You can transport energy by help of hydrogen either by frozen,
CRAZY energy intensive to freeze hydrogen into a solid, and keep it stored below (–434 ºF; –259 ºC) in a storage container to prevent boiloff. Even cryogenic liquid hydrogen (at -400 ºF or -240 ºC) is a pain in the butt to deal with and store, again for boiloff reasons
compressed gas
Hydrogen is a horrible compressed gas to store. Thats the part that everyone is jumping on you about in this thread. It has to be at very high pressure, is still very low density, and leaks out of all but the best fittings and valves because of how small the H2 molecule is.
cold ammonia or through pipelines.
Ammonia may be the best form to convert hydrogen to, but that doesn’t make it good for the general use cases we’re looking to replace, meaning energy generation. You’re also handwaving away the entire infrastructure needed to convert excess hydrogen into ammonia, and then back again into hydrogen if you’re not using it as ammonia directly (which I haven’t seen you suggest yet).
That’s easy and hands on.
That’s far far from easy, and its destroying your argument of a hydrogen intense future if you keep doubling down on it.
I‘m not saying hydrogen for every use case. No. German style of arguing? Just kidding, we Germans tend to opt for one or the other, but rarely an in-between or mix.
H2O has it’s advantages in terms of transportation and long-term storage. Same as petrol, oil, and gas btw.
We need new infrastructure for the entire energy chain being based on battery, PV, wind, SAF, hydrogen, whatever. Stronger power grids, daily battery storage, electric transformers, pipelines, harbors, h2o/ ammonia generators, fuel & loading stations, all that stuff. For each of the other energies but carbons. I don’t know what’s this argument is about.
Aren’t there significant challenges with storing the smallest molecules in the universe?
Except anmmonia is incredibly dangerous if it leaks…
I wonder if the water is drinkable, that would be pretty cool if your bike also produced hydration on rides so you wouldn’t have to carry extra water.
You would lose electrolytes though, you would need to bring them on longer trips.
Doesn’t look like it produces a lot either, so yeah, I guess it could only supplement your water supply.
When hydrogen reacts with oxygen it produces pure water. Pure water is quite reactive and will leave chemical burns on your skin. The reason is that pure water will try its best to absorb minerals, etc. And your body contains a lot of minerals and other stuff. Never drink chemically pure water!
Pure water is not going to burn you and you can even drink it (though, over time, it can leach minerals from you but then again so do carbonated beverages). People buy distilled water all the time.
Distilled water is not pure water.
What do you mean by “pure water” then? What exactly are you referring to?
Edit: Ok, it looks like judging by your other post, you’re referring specifically to type II deionized water. That is not really what people immediately think of when you say pure water. Also, it’s not going to burn you unless you boil it.
What else can you think of seeing “pure”? If it’s not chemically pure, then it’s not pure.
Hydrogen for mass- or space-constrained mobility (eg bikes, automobile, aircraft) faces all the known problems with storing it inside inconvenient shapes and contending with the losses from liquification. Real Engineering has a video on this aspect (Nebula and YouTube) when compared to simply using battery-electric storage.
However, I think hydrogen could be very useful for train locomotives – which historically had “tenders” that stored the fuel behind the prime mover – since weight is less of a problem on traction railways. As well as any stationary applications, such as utility-scale hydrogen to time-shift electricity supply, where there may be scales-of-efficiencies to realize. Today’s utility-scale battery farms are not exactly gaining any scales-of-efficiency to speak of, because they’re just adding more battery cells to the grid.
A singular, massive hydrogen storage tank would be a sphere, benefitting from a favorable volume to surface area ratio, among other possibilities. And such a sphere would make better use of land by growing in height, whereas multi-storey battery farms would be fire hazards. But these are just cursory conjectures.
Where a battery bank has a hazard of starting a fire as well as being a hazard if there is fire nearby, an enormous hydrogen tank is only a hazard if there is fire nearby, but it’s an explosive hazard.
How would it compare to storing enormous amounts of propane, in terms of safety only? Would the same safeguards work?
Shorter term stationary storage seems like an interesting idea, has anyone studied it out to see how effective, affordable, and efficient it is?
Hydrogen leaks ! Dihydrogen is the smallest molecule so it can pass through the smallest smallest gap.
Containing hydrogen is extremely difficult and it is an extremely difficult challenge for rocket manufacturers.
