Hypx_

8 ms·

31.
by Hypx_ 5y ago
Those do exist now. Those probably not advanced enough to be widely available just yet.
32.
by Hypx_ 5y ago
Large tanks do not cost that much. It will be no worse than compressed natural gas. This entire argument is an imaginary one with very little reasoning backing it up. The argument that hydrogen is inefficient is itself a massive exaggeratio
33.
by Hypx_ 5y ago
It's a fact. Pressurization is a very simply physics problem and it's just delusion to think this will always be slow. The simplest solution is just have bigger or more tanks. Again, it's a solved problem. As electricity pric
34.
by Hypx_ 5y ago
Green hydrogen will be cheaper than petrol. The goal is to make it from curtailed renewable energy which will cost <$0.02/kWh. You can't go around talking about cheap solar and not realize it means cheap hydrogen too. It will b
35.
by Hypx_ 5y ago
Which is going to be hydrogen, not charging from the grid, for long stretches of time if not all the time. The cost of solar panels plus batteries will add significant cost and make it less cost effective than large-scale production of hydr
36.
by Hypx_ 5y ago
No. How hard is it to have faster pressurization and/or extra tanks? For any of the newer stations this is solved. Gasoline is approaching 7€ per gallon in Germany. Cost per mile is cheaper with a hydrogen car. Public charging is more
37.
by Hypx_ 5y ago
If you're making grid electricity with hydrogen, it will be as expensive or more so than something that directly uses the hydrogen. You also are going to be forced to charge during the day, the exact opposite of how people use their EV
38.
by Hypx_ 5y ago
People need to question whether Tesla bet on the wrong technology. No one is even asking that question; instead they are just assuming it is correct. Assumption often leads to disasters later on.
39.
by Hypx_ 5y ago
FCEVs will end up being far cheaper than BEVs. Hydrogen production doesn't not have the same uptime requirements that directly electrification requires. It's quite likely that green hydrogen will be cheaper than grid electricity p
40.
by Hypx_ 5y ago
Most of the those problems are fully solved. In fact the the biggest event in green energy is pushing back from the anti-hydrogen nonsense and just start investing. A good example of this is Fortescue industry and JCB. They've pretty m
41.
by Hypx_ 5y ago
You're stuck in the world of ten years ago. Absolutely none of that is true. Refueling is the same as a gasoline car. A fuel cell car also costs about the same as a SUV to own and run. It fully makes sense to begin the transition to hy
42.
by Hypx_ 5y ago
People who looked at that strategy have realized that you need way more energy storage than originally thought. Especially in places that need winter heating. The only way we can get there at a reasonable cost is via hydrogen energy storage
43.
by Hypx_ 5y ago
There's only two viable paths to a zero emissions society. One is nuclear and the other is hydrogen. We have to pick one or the other (or both) as all other ideas have fallen far short of the goal.
44.
by Hypx_ 5y ago
2 PWh is not really a challenge other than scaling it up. We have many orders of magnitude more wind and solar energy that the world needs. Water won't run out either, especially when you realize that salt water can be used for this pr
45.
by Hypx_ 5y ago
People have made the comparison and concluded that hydrogen is the answer. This is why there is now tens of billions of dollars in investment in hydrogen related technology. The naysayers are already proven wrong and now its turning into ou
46.
by Hypx_ 5y ago
You have to be careful with the calculation here: The airship must also include the weight of the structure, and aerographene could potentially need much less structure than giant gas balloons.
47.
by Hypx_ 5y ago
All of this is part of a large program by the UK to switch to hydrogen: https://www.gov.uk/government/publications/uk-hydrogen-strat... What you're doing is just concern trolling, and suggesting that just bec
48.
by Hypx_ 5y ago
It's basically the "hydrogen-air" battery or hydrogen fuel cell. Although a short cut is to burn the hydrogen in gas turbines. We can store many GWh for months on end: https://www.business-live.co.uk/economic-
49.
by Hypx_ 5y ago
Hydrogen could potentially offer a solution to this: https://www.business-live.co.uk/economic-development/equinor... Such projects could scale to a large enough size to solve the intermittency problem.
50.
by Hypx_ 5y ago
It's the only one with real notoriety right now. But there are many projects. For example: https://www.business-live.co.uk/economic-development/equinor...
51.
by Hypx_ 5y ago
I don't think you are even trying to read what they are saying. All they're testing is how well the hydrogen will stay underground and how tight the seal is for all of the various formations. We already know it works.
52.
by Hypx_ 5y ago
It's advantage is that fact that it stores multiple orders of magnitude more energy than anything else, at a cost level that is orders of magnitude cheaper too. It's a matter of when, not if, hydrogen becomes the primary energy st
53.
by Hypx_ 5y ago
It should be noted that using hydrogen for steel or fuel production lead almost directly leads to some kind of hydrogen storage. If you can make that much hydrogen, it just becomes a natural step to use it as a energy storage system. Also,
54.
by Hypx_ 5y ago
Iron-air batteries are literally just fuel cells that involve iron instead of hydrogen. THe odds on favorite is hydrogen fuel cells and it probably can’t be anything else (short of some kind of nuclear solution).
55.
Argon Fluoride Laser Could Lead to Practical Fusion Reactors(hardware.slashdot.org)
1 points by Hypx_ 5y ago|0 comments
56.
The Race Is On: NRL Argon Fluoride Laser to Advance Fusion Energy(navy.mil)
1 points by Hypx_ 5y ago|0 comments
57.
by Hypx_ 5y ago
If you do one you can easily do both.
58.
by Hypx_ 5y ago
Even a 110V plug still counts as a public charger. The point is that you still care about them. Even if you go out of your way to not think about them, you're still forced to use them from time to time.
59.
by Hypx_ 5y ago
NiMH is around 90% efficient too. Lead-acid around 85%. Also, li-ion don't do well under high discharge rates and can drop to <70%. It's not a perfect cell technology by any means.
60.
by Hypx_ 5y ago
This is very short sighted thinking then. They could end up disrupting the car industry. Especially in heavy industry where they might clean house against companies that haven't invested correctly. Also, all of the cost is R&D. The

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