all 5 comments

[–]kokolokoNightcrawler 1 insightful - 2 fun1 insightful - 1 fun2 insightful - 2 fun -  (4 children)

so that means again they are exchanging electric engines with internal combustion ones for the railway? How silly

[–]Chop_Chop[S] 2 insightful - 2 fun2 insightful - 1 fun3 insightful - 2 fun -  (3 children)

so that means again they are exchanging electric engines with internal combustion ones for the railway? How silly

Not ICE. How silly to imagine that you know anything about what's going on WRT H2 trains in the UK, yet have an arrogant attitude about it.
https://www.youtube.com/watch?v=Cekj2DiHPH8

[–]kokolokoNightcrawler 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (2 children)

First of all, no need to be rude, but then again, you're probably quite insecure about all these posts on your profile about hydrogen... Read the following, but please have a seat first because I don't want you fainting or panicking after you realize who's the ignorant one here.

Which is a better source of energy and why, solar or hydrogen? Solar energy is abundant (with caveats) and hydrogen is almost non-existent as free hydrogen. As a means of creating storing and distributing energy for cars, electricity produced by solar PV and stored in batteries beats the “hydrogen economy” by more than two times. Let me explain; The round-trip efficiency of the process electricity-to-hydrogen-to-electricity is around 40%. Less if your vehicle uses a combustion engine, down to 25%. Compared with the same round trip for electricity-to-batteries-to-electricity at 85%. That means your vehicle needs more than twice the input energy using hydrogen compared to batteries. The “hydrogen economy” seemed like a good idea 20 or 30 years ago. But battery technology overtook hydrogen and now it is simply a niche product. It will remain that way until someone comes up with new materials and processes that make hydrogen cheaper. And even then, (IF it happens) the world will take at least 10 years to transition. Using hydrogen created by renewable energy sounds great until you work the details. You can’t put (much) hydrogen into existing pipelines. Hydrogen creates problems with both hydrogen embrittlement and corrosion, which means it requires special materials for pipes and valves. The problem is compounded because hydrogen can easily migrate into the crystal structure of most metals. And hydrogen just isn’t easy, or cheap, to make. It burns cleaner than fossil fuels, but that is hardly a high bar.

Now, that's just the basics. As far as the video you've posted, it seems that indeed English railways is abt 60% powered by diesel. My bad to presume that the oldest railway nation is also one of the advanced railway nations these days. (still not an excuse to be impolite really). Why in the hell would they want to use electricity to manufacture hydrogen, to manufacture electricity again when solar is making such GIANT leaps lately with both batteries and solar cells...It couldn't be that the oligarchs in UK are worried about the decentralization of their power, literally?!

You've been schooled, lol, i'm sorry

[–]Chop_Chop[S] 2 insightful - 2 fun2 insightful - 1 fun3 insightful - 2 fun -  (1 child)

First of all, no need to be rude

Pointing out that it is silly for you to imagine that you know anything about H2 rail in the UK is not rude, it's truth.

You've been schooled, lol, i'm sorry

In your imagination, again. And yeah, you are a bit sorry. What is it with these arrogant battery lovers.

Since recycling of Li-Ion batteries is not cost effective in 2020, what do you propose to do with mountains of dead battery packs? Every battery made today will die one day. And before you say they will supply homes with backup power, better call your insurance company.

I wouldn't presume to say "you were schooled". Have fun.

[–]kokolokoNightcrawler 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (0 children)

I don't need to know much about a particular problem when I'm an intuitive, educated person. My general guess is usually enough.

As far as you are concerned;

WIKI:

Recycling processes today recover approximately 25% to 96% of the materials of a lithium-ion battery cell, depending on the separation technology.[7][8] In order to achieve this goal, several steps are combined into complex process chains, especially considering the task to recover high rates of valuable materials with regard to involved safety issues.[9][10]

Lithion Recycling has developed an efficient & cost-effective process for recycling lithium-ion batteries, the most widely used batteries for electrical vehicles & portable electronics today. This new process will allow up to 95% of these batteries components to be recovered & treated so that they can be reused by battery manufacturers—a concrete way to close the loop of battery life-cycle. The technology put forward by Lithion Recycling uses an innovative combination of processes, based on hydrometallurgy. The result is a size and chemistry agnostic process emitting very low GHG emissions.

And I don't understand what do you mean by "supply houses with backup power"...But I sense confusion in that one as well lol