sonori

joined 1 year ago
[–] sonori@beehaw.org 4 points 19 hours ago

Hey, I think i’ve seen this movie.

[–] sonori@beehaw.org 1 points 22 hours ago

Mostly its the fuel costs adding to operating costs, but dealing with a cryogenic and highly flammable liquid/gas and all the related fluid handling, pressure regulators, and piping necessary is always going to be more labor and repair intensive than just expanding and directly charging the battery the vehicle needs to have anyway.

[–] sonori@beehaw.org 1 points 1 day ago* (last edited 1 day ago) (2 children)

Because green hydrogen is expensive, and the more realistic projections estimate it will remain so to at least 2050.

If we use the CRU estimations, which notably are a trade group very much betting on green hydrogen adoption, we should be expecting at best a price of $3 dollars a kg in the distant future, with the current best price being more in the range of $6-$7 dollars a kg. With a 65% effective fuel cell that works out to the hauler getting its electricity at 28 cents a kwh with the possibility of going down to as low as 14 cents a kwh in future.

For reference, the average industrial electricity rate in 2023 was 8 cents per kwh, and Lazard puts the cost of utility scale solar at between 3 and 9 cents a kwh if a mine wants to roll their own. Wholesale Diesel fuel has ranged from about $2 to about $2.8 a gallon so at a reasonable 38% efficiency you get about 14 to 20 cents per kwh.

Not as bad as I expected offhand thanks to the current low cost of industrial green hydrogen, but your still looking at spending a massive amount of money for big platinum catalyst fuel cells and electric powertrains all so that you can spend thirty percent more on fuel than you do currently, as compared to using the grid directly for fifty percent less than you currently spend.

And we haven’t even mentioned that these things are going up and down a steep grade all day, so not only do you want massive batteries anyway so you can recharge on the way down, but you need them because unlike a small FCEV where it’s fuel cell is nowhere near large enough to output full power (and as such is only used to charge the battery) you do actually need to be able to sustain full power for the whole trip up.

TLDR: Industrial electricity is far cheaper than Diesel, let alone the more expensive green hydrogen. Hydrogen may be able to compete on a one or one level with Diesel in the far future, but given the upfront cost of the kit you might as well go all the way so you’re saving money over the long term.

[–] sonori@beehaw.org 2 points 2 days ago (4 children)

Then your looking at almost an order of magnitude increase in fuel costs and a related increase in operating costs rather than savings.

[–] sonori@beehaw.org 22 points 2 days ago

What, founder of cryptoscam Worldcoin is going to cash out of a project sold primarily on hype. Say it ain’t so. /s

[–] sonori@beehaw.org 2 points 3 days ago

I mean sulfur is also a natural part of our atmosphere that geologic activity has been spewing out into the air for as long as earth has had air, but I’m still going to call it pollution if you’re power plant pumps a vast quantity of it into the atmosphere and now it’s raining acid on me.

We have more than doubled the amount of carbon dioxide in our atmosphere, with half of that doubling having been done in the last thirty years alone. The very oceans are acidifying to the point large swaths of marine life are being wiped out, and thousands to hundreds of thousands of people are being killled by the effects of global warming each and every year. It’s pollution, it’s just the pollution is on such a vastly larger and more dangerous scale than any acid rain or smog people are used to thinking about.

[–] sonori@beehaw.org 2 points 4 days ago* (last edited 4 days ago)

Plenty if you don’t want grid tied, otherwise your local utility probably has an list of the ones they’ll accept somewhere. There is a list of things an inverter will have to be certified to be able to meet for grid tied such as anti-islanding requirements, and in this case i’m afraid you’re almost certainly better off to be going with a reseller the inverter manufacturer actually recommends than playing Amazon roulette.

From my understanding here it tends to be easier to just stay off the grid for very small systems, either by just plugging in a few panels to a battery and small dc to ac inverter(with appropriately rated fuses between all connections) or else getting an automatic transfer switch and treating the whole thing like a generator.

That being said RVs and camper vans are a thing here, and there may be some more plug and play systems in that direction but small 12v systems are a bit out of my wheelhouse.

[–] sonori@beehaw.org 2 points 4 days ago

Unless you’re meters have a whole lot more protections built into them than ours I don’t think that they would have anti-islanding or grid frequency protections built in, that latter at least seems like it has to be done at the inverter level.

If it is the case than why bother with any registration or monitoring at all beyond requing a smart meter for anyone with a grid tied inverter?

As for the meter reading itself it’s going to depend on whether the inverter is connected to the gird, and if it is whether or not the inverter is set to grid export or only to provide as much power as the home is using at the time, possibly minus something for reactive power or some such.

[–] sonori@beehaw.org 2 points 4 days ago (2 children)

Surely ability is determined by having the proper inverter though? The panels are irrelevant as without a proper grid matching inverter all connecting to the grid is going to do is destroy the inverter.

Also, as someone who is currently going through the process of registering a grid connected inverter here in the states, surely the whole point of the registration process is the part where an appropriately licensed electrician comes out to physically verify that the inverter is grid compliant and anti islanding, as that is the part that is likely to actually kill someone if it is improperly installed or configured.

It’s also something the government/utility has to take on trust to be declared, as a miss wired generator or battery backup transfer switch poses the near exact same risk.

[–] sonori@beehaw.org 2 points 5 days ago* (last edited 5 days ago)

Perhaps, but to people who have spent the last few decades in the halls of power surrounded by members of a western style military who take it as given that they are a western nation just as formidable as their close allies in Europe and Asia, the idea that the nation itself could falter in such a way is certianly far from many of their minds. Doubly so for a party that is used to bulldozing its way through critical media outlets, courts, and public protests.

They’ve had general success in previous wars with most if not all of their neighbors, and something tells me the focus in their telling is not on the massive amounts of foreign aid they received in the lead up or duration.

They may often talk about how any given threat may be an apocalyptic end of the nation, but I don’t think they actually believe it, at least when it comes to the court of public opinion in some far off foreign lands.

Could a senior politician be so disconnected from the basic reality of their situation by yes men, loyalists, and wishful thinking? Well by all accounts Putin did honestly believe the FSB’s reports that Ukrainians would welcome any Russian forces in droves as liberators, and that any conflict would be over before well before the west could respond, so I’d say yes.

[–] sonori@beehaw.org 4 points 6 days ago (2 children)

The path they are seeing is the path for Benjamin Netanyahu and his far right party to hold on to power for a few more years, all else be dammed.

His far right campaign and political messaging pre October 7th focused hard on how he was the only one strong enough to control Hamas, and on how he could ensure the fires of conflict would burn just hot enough that they would never find common ground and unite with the West Bank (the pretense that Isreal and the US demands they do before the West Bank authority can be recognized as a nation by the UN) but never got enough to possibly harm Isreal itself.

Between constant legal battles and scandals with Isreal’s supreme court, he was just bearly able to hold onto power when Hamas demonstrated that they clearly weren’t actually under his perfect control, and so now he needs a win a war to play the strongman and distract everyone from what he had been saying up until that point. He needs a reason to shut down media outlets criticizing him, and war powers to run over the opposition.

He also needs the votes of the farthest right of his far right party, and thusly needs to appear amenable to their position of complete Israeli annexation of the West Bank and Gaza.

All of this means that the IDF must be seen fighting a great war for the very survival of the nation, not a series of hostage rescue or series of commando raids to capture high value targets and more importantly intel. It’s also why he cannot let this end in a ceasefire or give into Hamas original terms of a hostage exchange for the Palestinians being held without charges for years in Israel, but must fight on until whatever passes to the far right as a total victory.

Little things like burning though most of Isreal’s foreign support and international reputation are at best problems for the future, and maybe even opportunities for campaigning, because when the world turned its back on Isreal only he and his party of strong men are going to be able to keep things going for the average citizen.

[–] sonori@beehaw.org 7 points 1 week ago* (last edited 1 week ago)

Why should I be afraid of a foreign company learning my information, and instead trust a local one that proudly sells it on the open market to anyone that wants it?

This proposal puts no fetters on what information amarican companies gather or sell to the Chinese.

And yes, the largest nation in the world definitely stole all their technology, all thouse technology transfer agreements, companies outsourcing their manufacturing lines to it, and of course the hundreds of billions it’s government poured into the R&D of new energy technologies at a time when most western countries were slashing or eliminating their own subsidies and investments had nothing to do with it. Nope, none at all./s

Don’t get me wrong, fuck the CCP. They are authoritarian imperialists who constantly cultivate racism and xenophobia while openly punishing anyone who speaks out against them, and are far, far more interested in protecting the power of the party’s leadership than even appearing to try and appear actually left wing, but this does nothing to protect american consumers.

The only practical effect is to shield amarican manufacturers from competition with companies that have not colluded to focus exclusively on the largest, highest profit gas guzzlers they could fit on the roads during the last two decades the instant it looked like their customers might actually have had an option but to bend over and take it.

Chrysler and GM could have focused their efforts on building cheaper EVs instead of half assing compliance cars and then selling them for enough to ensure that sales would never get big enough to divert manufacturering lines from their high profit margin Trucks and SUVs, but instead actually chose not to.

Now the government is actively protecting them from competition on a thin pretense, and say it with me now, we know it’s a thin pretense because the government has no problem with Amarican, european, Japanese, and Korean companies doing the literal same exact thing and then selling the same recordings to the Chinese government.

If the government was actually even the slightest bit concerned about amarican car buyers privacy, it would not allow a company like Tesla where employees regularly pass around clip compilations of the funniest things they’ve seen on the car’s internal cameras to have cellular modems, internal cameras, or over the air updates.

Instead it says if you want a car with bluetooth speakers or over the air security updates, you must buy the land yacht from the good amarican company that just donated to our campaign and is making a killing on the margin shortly after it looked like even a hundred percent tariff might not be enough to protect amarican car manufacturers from the consequence of their own direct choices.

 

If anyone here is interested in a more technical interview, here are two socialists with doctorates in economics talk about why after two hundred years of talking about fixing the housing market haven’t gotten anywhere.

 

Evidently the joints on the flaps still need a little work into not letting gases through, but it seemed to still have enough actuation to keep the spacecraft stable until the engines took over for the landing burn.

 

A detailed discussion of the Shuttle program as well as some ethics in airspace.

 
  • A video about disposable vapes, and how addiction became the goal of every single company on the planet.
 

It’s their first ever attempt to launch a Vulcan, and their launching an lunar lander. Window opens at 1:53 AM EST. Here’s to hoping for a successful launch.

Edit:

Liftoff at 47:40.

We saw a successful launch, translunar injection, and the Peregrine lander successfully powered on before detaching from the Centaur upper stage, which proceeded to relight its engines and complete a burn into a solar orbit at part of its memorial mission.

The lunar landing attempt is expected to be on Feb 23, and it is expected to remain operational on the surface of the moon for at least ten days.

According to NASA, “-Scientific instruments will study the lunar exosphere, thermal properties of the lunar regolith, hydrogen abundances in the soil at the landing site, magnetic fields, and conduct radiation environment monitoring.”

More on Vulcan and its history.

 

I don’t think that this has been posted yet, but if not here’s the summary.

https://youtu.be/O3F8aTBLLx0?si=GPVB2xtC5wwnSC6V

Just the highlights.

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