eleitl

joined 2 years ago
MODERATOR OF
[–] eleitl 1 points 2 years ago

You can block Meta at the AS level for your instance firewall, and also at federation level so that you can defederate from second order offenders.

[–] eleitl 5 points 2 years ago (2 children)

Yes, if all the MTA admins refused to SMTP with Google, Microsoft and Yahoo right from the start email would still work. Right now it doesn't. We don't want a repeat of that, so let's defederate from any big corp or anyone who federates with any such.

If you don't, you're dead in the long run.

[–] eleitl 16 points 2 years ago

Level fines and collect them.

[–] eleitl 8 points 2 years ago

You absolutely should be. If Mastodon instances will start federating with Meta I will defederate them. And move my accounts from any instance that federates with them.

[–] eleitl 17 points 2 years ago

If you're not going to immediately defederate from Meta instances the Fediverse baby will be strangled in the crib.

[–] eleitl 1 points 2 years ago

1 kW would cost me some 17 EUR/day. Or over 6100 EUR per year.

[–] eleitl 25 points 2 years ago (1 children)

EU's GDPR officers will be very interested in Reddit's documented inability to delete EU Reddit users' personal data.

[–] eleitl 64 points 2 years ago (4 children)

Many are waiting for their data takeout requests to complete before doing the same. And to follow up with GDPR requests/GDPR deletion requests.

All to improve their quarter numbers pre-IPO.

[–] eleitl 1 points 2 years ago* (last edited 2 years ago) (1 children)

The fossil gas grid there can’t move hydrogen beyond about 5% by energy.

I don't know where you're taking these numbers. City gas used to be 50% vol hydrogen, and I bet you dollars to donuts current gas network edge can deal with that fraction without refitting. You will need to adjust the furnace burners for high volumes of hydrogen, but not for 5% vol and perhaps not even 15% vol. We're not talking long-distance high-pressure pipelines and pump stations, because they're not relevant for decentral production, storage, and consumption. But you can build these, if you have to.

Natgas demand in Germany is about 1.5 PWh/year so 5% of that is 75 TWh/year. Only 58 TWh total of solar PV were generated in 2022. So once we 3-5x (hard to estimate future need curtailing versus capacity) the currently installed solar PV capacity we might be able cover some 5% of German natgas demand, which is a lot. Both in terms of the demand and the solar PV infrastructure involved.

5% capacity factor

I don't know what you refer to, efficiency of commercial water electrolysers is some 75% with some lab stuff that is 95% efficient. The amount of surplus depends on the number of spikes which you can't sell to the grid or neighbor countries even at negative prices, so it's becoming a problem at multiples of today's installed renewable (not counting biofuels, since these are already not renewable nor net energy sources). If you don't have that multiples of today's capacity installed very soon, there will be a lot of dead people. Which, admittely, use a lot less energy, so there's that silver lining.

there are countless better uses for the curtailed energy than hydrogen

Which would be what exactly? We can't even charge all the projected EVs given that local infrastructure is shit. There are no energy storage systems worth spit in homes, and currently 1 kWh battery storage will set you back 1 kEUR. The storage which isn't there, while the natgas grid is already there, and you can plonk down water electrolysis containers anywhere you want. And, no, these don't have to be PEM. Conversion efficiency is secondary if you're dealing with 100% loss, aka curtailing of paid-for infrastructure. Use it, or lose it.

and countless better uses for hydrogen than reducing the emissions from fossil gas by 5%

I'm not talking about reducing emissions. I'm talking about having seasonal load level storage, and having at all energy available. Fraction of tight gas on LNG market is growing, which is not good news, at all. Another interesting thing: net energy from total oil liquids is supposed to peak as soon as 2025. That is net energy volume total, not per capita. That already peaked a while ago.

This is wholly a greenwashing

What is particularly nongreen about renewable (solar and wind) electric power decentrally producing 100% renewable hydrogen? It doesn't get greener and more renewable than this. I'm honestly boggled by this statement.

distraction tactic

I don't think you're arguing in bad faith. I think you're not at all understanding what the actual problem is. May I recommend you have a thorough look at https://escholarship.org/uc/item/9js5291m ? Then perhaps people can start understanding what we're dealing with here.

[–] eleitl 3 points 2 years ago

I'm on LineageOS sans gapps, so not even Google Play available. If it's not open source, it's not there.

[–] eleitl 2 points 2 years ago (2 children)

I know about Servermonkey, and the prices there aren't nice at all. I'm rather sticking with old servers with roughly the same specs, but perhaps twice the wattage and noise, which only run occasionally. The 24/7 stuff is already on a low-power footprint, though I don't have a successor for that little Supermicro when it bites the dust. I'd rather pay way less than 1 kEUR for it.

[–] eleitl 1 points 2 years ago* (last edited 2 years ago)

Actually, these are mostly dual-socket boxes with lots of cores, ECC RAM and lots of 3.5", 2.5" spindles and SSDs, plus private storage networks, and such.

Instead of a NUC I run a 1U Supermicro 8-core Atom C2758 with 16 GB RAM and SSDs which is quite durable but will die eventually. With more modern hardware I meant something like that, only with onboard 10G and/or 50G (SFP+/SFP28/SFP56) with more and better cores as well as onboard NVMe along with frontal SAS/SATA slots. And of course some larger SSDs to populate these.

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