Hypx

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South Korea’s Hyundai Motor has opened a new hydrogen energy research and development center in Guangzhou, China, in its efforts to expand hydrogen mobility technology in the world’s largest fuel cell market.

 

We go for better electric solutions, we go for fuel cell electric solutions, and we also continue to invest in combustion engines. As a data point, it's rather interesting to say that last year, 2024, was a record year for us in investing in combustion engines. Some people believe that this is already technology of yesterday, sunset technology, but we believe that combustion engines running on renewable fuels, including hydrogen, will be part of the equation for our industry going forward.

 

Scientists created an artificial leaf that can produce hydrogen fuel from sunlight and water, offering a clean energy alternative.

 

SRM University of Amaravati aims to develop a 'Green Hydrogen' powered car, reducing costs and electricity consumption for production.

 

Saudi Arabia signs major agreements to build a clean energy export corridor to Europe, advancing its leadership in green hydrogen and Vision 2030 goals.

 

The ESA has set itself ambitious goals: a hydrogen-powered hypersonic aircraft that can take off horizontally and ascend to Earth orbit.

 

The Z1 drone can operate at high altitudes. Together with its compact dimensions, it is difficult to detect on radar.

 

The company has now been granted a total of 45 patents related to hydrogen and electric aviation systems, with almost 250 applications.

 

Horizon considers operational and practical technologies for the Cavorite X7 eVTOL with a focus on real-world implementation.

 

The option adds up to 120 miles of range for longer service routes

 

Scientists have taken a major step toward solving one of the biggest challenges facing green hydrogen: the scarcity of iridium, a rare and expensive metal crucial to current production methods.

[–] Hypx@fedia.io -1 points 11 months ago (2 children)

You are not reading my post. The entire set of steps is exactly the same number of steps as charging a battery. Both are electrochemical processes and have similar losses. In theory, we can make a fuel cell that operates just as efficient as a li-ion battery.

The other point is that the process of moving hydrogen around is cheaper than moving energy via electricity. Losses of distribution are similar too. People are forgetting how big and complex the grid is.

[–] Hypx@fedia.io -2 points 11 months ago (4 children)

Which is about the upper limit of a reasonable powerline. I'm pretty sure they had to resort to HVDC to get it that long. Note that I did not say it was impossible, only impractical. You lose a lot of energy when it gets very long.

I also know that Quebec is making hydrogen with their hydropower. Clearly, they know something you don't.

Pipelines go for thousands of km too, and send far more energy with smaller losses than wires. This is due to physics: A pipe is a hollow tube and scales up better the larger the diameter of the tube. Wires do not scale up as well.

A battery car does not "skip the middle part." It relies on a huge and resource intensive battery to store energy. This is electrochemical energy storage, and works the same way as how a hydrogen car stores energy. As a result, there is no fundamental advantage to using a battery. As costs comes down and as fuel cell technology advances, it is likely that there will be zero or next to zero efficiency advantage for the battery car.

[–] Hypx@fedia.io -3 points 11 months ago (6 children)

We do not send much electricity over that amount of distance. More than several hundred km, and most conventional wires are cannot send much power through them. For thousands of km, we have to use HVDC, but that is very expensive. In reality, we tend to switch to pipelines instead of wires for long distance energy transfers.

Put it this way, if wires could really send power thousands of km without any hiccups, then why do natural gas pipelines exist in quantity? After all, most of them are just delivering natural gas to a gas turbine to make power. So why not put all the gas turbines in one area, and use wires instead? Because in reality, pipelines are much better at moving energy than wires over long distances.

[–] Hypx@fedia.io -2 points 11 months ago (4 children)

Only for certain types of steel. And there are many materials that are impermeable to hydrogen. This is mostly a marketing argument rather than one based on fact. Pipelines are far cheaper and send far more energy than high voltage wires.

[–] Hypx@fedia.io -4 points 11 months ago (14 children)

You have inverted reality here. It is much easier to transport hydrogen long distances versus electricity. Pipelines are cheaper than HVDC cables. You can actually ship hydrogen across oceans if necessary. It is electricity that has to be made locally, but hydrogen can made anywhere it is cost effective.

[–] Hypx@fedia.io 1 points 1 year ago

Perhaps. But it will likely be a hard break from the current setup, since the current one is not even close to working.

[–] Hypx@fedia.io 1 points 1 year ago* (last edited 1 year ago) (2 children)

The main ones are that certain users or groups of users end up dominating each community, and that mods become abusive over time. Brigading and bigotry are big issues too. You also mentioned echo chambers, which I agree is another issue, although that is present in many social media platforms.

Unfortunately, federation doesn't solve these issues. At the very least, some kind of basic improvements are needed. Ideas like preventing large communities from dominating the front page, removing or limiting the effect of downvotes, or having more checks and balances for what mods can do, are necessary. But none of that happened. So this attempt at a Reddit clone is just ending up as a bad Reddit clone. Which is probably why Lemmy/Kbin/Mbin will slowly fade away, once people realize that it is just a Reddit clone.

This won't be the final attempt at creating a replacement for Reddit. Eventually, enshittification will destroy Reddit, and something else will replace it. But it probably won't be the Fediverse's attempt at it.

[–] Hypx@fedia.io 1 points 1 year ago (4 children)

Again, that doesn't solve any of the fundamental problems of a Reddit-clone.

Anyways, our opinions don't matter. If I'm right, the communities we're on will quietly fade away.

[–] Hypx@fedia.io 1 points 1 year ago (6 children)

So many instances block Hexbear and others. We are well on the path of creating separated communities, just with the added headache of having to police federation. Not to mention the problem of power users and out-of-control mods, which federation makes worse rather than solving them.

Ultimately, I think a real Reddit replacement will have to think hard about fixing the fundamental problems of this form of social media, rather than attempting to use buzzwords or cool new ideas.

[–] Hypx@fedia.io 1 points 1 year ago (8 children)

Federation makes sense for a Twitter replacement. Not so much for a Reddit replacement. I get the feeling that we are at an end to the experiment. Eventually, people will realize that we cannot replace Reddit with a Fediverse based solution.

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