_hypx

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361.
by _hypx 3y ago
Hydrogen projects are sprouting up like crazy. It's pretty much a repeat of the early days of wind and solar.
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Reddit: Killing a Giant(faceted.social)
157 points by _hypx 3y ago|47 comments
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World's Largest Fusion Project Is In Big Trouble, New Documents Reveal(hardware.slashdot.org)
2 points by _hypx 3y ago|0 comments
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by _hypx 3y ago
The round-trip efficiency isn't actually that bad once you realize that we're dealing with large installations here. For instance, heat can be used to make hydrogen, which is why you sometimes hear about nuclear power making hydro
365.
by _hypx 3y ago
You’re being very dishonest again, and are consistently portraying things in the worst light possible. An individual system of pump hydro can be built much larger than any realistic battery facility. There are enough viable locations that i
366.
by _hypx 3y ago
Paywall: https://archive.is/ttSMI
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Chipmakers race to curb emissions as demand surges(ft.com)
3 points by _hypx 3y ago|1 comments
368.
by _hypx 3y ago
Now you're just lying. Pump hydro scales better than batteries, although there are geographic limitations. Compressed air and thermal also scale better than batteries while not having any geographic limitations. Hydrogen scales beyond
369.
What Happened to Google Search?(youtube.com)
4 points by _hypx 3y ago|1 comments
370.
by _hypx 3y ago
Those sound like excuses. FYI, a lot of the alternatives are things like pumped hydro which isn't that inefficient. Many situations just need heat at the end, and therefore don't need pure electricity. I am merely pointing out tha
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by _hypx 3y ago
You can build twice as many solar panels. It is making batteries that is problematic. Not to mention the argument supposes that the storage system must only output electricity, which is not necessarily the case.
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by _hypx 3y ago
A system that can store 1000% more energy than what is possible with batteries could very well power the entire system. Thus eliminating the need for batteries for this purpose. It's always something that stuck out to me as an obvious
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by _hypx 3y ago
You wonder if Reddit will have to file for bankruptcy soon, if that is the case. The recent events should be causing a massive crisis.
374.
by _hypx 3y ago
> Solar and wind do not have negative electricity rates . Negative electricity rates are caused by a fixed/hard to ramp down source (nuclear/coal/gas) whose electricity is not needed. Funny how that never happened until r
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by _hypx 3y ago
https://www.sciencedirect.com/science/article/abs/pii/S03603... The maximum possible efficiency of a fuel cell is 100%. It follows directly from the realization that they are not limited by Carnot's
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by _hypx 3y ago
How is that any different than anyone with an obsession with green energy? In reality, it is a necessary component of a sustainable society . Something that you failed to realize. What I know is that your position on hydrogen is pure FUD.
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by _hypx 3y ago
Again, you are simply denying progress and the existence of cheap green energy. The reason I have issue with your posts is because they are so emphatically against green energy outside of a specific goal, that it simply must be because you
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by _hypx 3y ago
But the fact that they are the same should mean something to you. It also helps not to spam FUD about efficiency, and in the real-world they are much closer than you are thinking. In fact, hydrogen cars are the second most efficient form of
379.
by _hypx 3y ago
You are just showing more of your backwards thinking and closemindedness. For starters, most hydrogen today is made from natural gas, so all infrastructure is just natural gas based. If there was a vast source of hydrogen, it will switch ov
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by _hypx 3y ago
Wrong. It solves it completely if you wanted to. This is Ludditism, pure and simple. > - storing huge amounts of hydrogen isn't possible right now (progress towards salt caverns storage is slow) and may never be Wrong. We have been
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by _hypx 3y ago
Imagining believe biofuels are not greenwashing but believing a fuel made from water is. Seriously, fuck you. You're a brainwashed BEV fanatic. And pretty much a climate change denier given your extremist position.
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by _hypx 3y ago
Fuel cells are not combustion engines. They are electrochemical systems. Their theoretical efficiency is the same as li-ion batteries. And this is why it is a 100% guarantee that they will displace li-ion batteries. Why on Earth would anyon
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by _hypx 3y ago
A fuel cell has far less raw material needs than a li-ion battery. All of those things you described are less expensive than the comparable grid infrastructure. It is ten times cheaper to move hydrogen around than electricity: https:/
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by _hypx 3y ago
That literally is a battery. What do you think nickel-hydrogen batteries are? PS: People are hostile because they own a BEV, or own shares in a BEV company, or have some other financial motivation. They are openly hostile to anything that c
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by _hypx 3y ago
There are several posts about ethanol recently on ycombinator. I did not participate in them. But if you read them, you'll find out that anything based on biofuels is pure greenwashing and not serious environmental policy.
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by _hypx 3y ago
10% is pretty what the losses of long distance HVDC will be. You are at the point of diminishing returns in terms of efficiency at that point. Not to mention that this is recoverable energy. Liquid hydrogen is literally cryogenic energy sto
387.
by _hypx 3y ago
Now you're playing semantics games. Saying "it does not solve the issue of intermittency at all" does not mean it cannot be a partial solution. The main point is that hydrogen does solve the issue, as a full solution, where
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by _hypx 3y ago
You should read recent threads on ethanol here. That is almost certainly not a option.
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by _hypx 3y ago
> The minimum theoretical energy to liquefy hydrogen from ambient (300 K, 1.01 bar) conditions is 3.3 kWh/kg LH2 or 3.9 kWh/kg LH2 with conversion to para-LH2 (which is standard practice) [1]. https://www.hydrogen.en
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by _hypx 3y ago
> Indeed, hence the title of the referenced study report: "European cooperation could provide more stable wind power". "more stable" isn't "perfectly stable". > > As its contents shows 'neigh

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