Notices by Steve Hill 🏴󠁧󠁢󠁷󠁬󠁳󠁿🇪🇺 (steve@mastodon.nexusuk.org)

@feld @Hypx It seems likely to me that big industry that requires H2 will generate it on site. I think the kit required to generate H2 is well beyond what you could install at a fuel station though, so H2 for cars is going to need to be transported long distances.

@feld @Hypx I'm honestly not sure why anyone is pursuing H2 for cars now - a few years ago it was debatable but now the BEV has very clearly won, primarily because they didn't require any new infrastructure to be useful (I believe there are 14 H2 filling stations in the UK, compared to a very conservative estimate of maybe a billion sockets that you could charge a car from - 30 million homes + office buildings, maybe 20-30 power sockets in the average home, more in an office building.)

@Hypx It only takes a small amount of critical thought to realise that's not true. Assuming a 100% renewable grid: I need my computer when I'm in work, and I want my dinner at dinner time, so if the wind isn't blowing at those times, some storage is needed. But it is rare to need a car to charge at a specific time - cars charge when there is spare power available on the grid so rarely any need to store energy between generation and delivery to the car.

@Hypx So for a BEV, you're in a situation where the energy used to charge the battery has usually come straight from the generator, but occasionally from storage for the rare situation where the car needs to charge *right now*. If hydrogen is used for storage, it doesn't need to be moved around, which saves a whole load of energy.

Conversely, for a FCEV, you're going through the energy storage steps for *every mile* you drive. And the H2 you're using has to be transported to the fuel station.

@Hypx A 100% renewable grid will, of course, have peaks where there is excess power. Using those peaks to generate H2 is a great idea. But there are a number of industries that *require* H2 to decarbonise, whereas transport does not, so far more sensible to use that H2 for those industries instead of wasting it on transport which could have charged directly from that excess power.

Utterly bonkers.

#EV #Hydrogen

@felichsdakatze why would you even want 1000km/charge? I've never even owned an ICE that could do that (and an ICE really needs more range than an EV due to the inconvenience of fuelling it)

@felichsdakatze EV batteries really don't degrade much - the only EV that has had significant battery degredation is the Nissan Leaf, and that's because the battery management system has no thermal management. Basically every other car does not have that problem and doesn't suffer from significant degredation.

@felichsdakatze I have been driving a VW ID.3 for the past 3 years - 260 miles of range and I've honestly not seen any need for over 200. It is exceedingly rare that I would want to drive more than 200 miles without stopping, if only for a pee. So I plug in when I stop - it's extremely rare that I have to stop to charge, charging is just something that happens when I am stopped for other reasons.

@felichsdakatze Now, 1000km of range in an ICE would actually be useful because they are a pain to refuel - you have to actually spend time driving to a petrol station, whereas the EV is automatically fully charged over night while parked outside my house.

@lanodan @neil This...

I work in the school internet filtering business, and you wouldn't believe the number of times we have to discuss "is this content social media", "is this content porn", "is this violence?" etc - you can't set hard rules for this stuff (and we *do* get complaints from schools for "why hasn't this been blocked by the porn filters" for the sort of fully-clothed stuff that you'll see in any newsagent in the country...)

@Edent @PlaneSailingGames That isn't end-to-end encryption, that is only transport layer encryption: the email still gets decrypted by every mail server it passes through, and still sits unencrypted (or at least, readily decryptable by the provider) in your mailbox.

End-to-end encryption means it gets encrypted by the sender and decrypted by the recipient, not by any of the hope in between.