271–280 of 653 posts
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3 phase typically has 400V between the phases and neutral in Europe, the phases don't gain you anything, but the voltage does.
Pretty sure residential 3-phase in Europe is 400V phase-to-phase, it's 220V phase-to-neutral.
While this sounds good, why are we so focused on charging stations? It seems to me, it would make much more sense to have a series of batteries that can quickly be removed, and have battery exchanges. Then, if you need a charge, you pull over to a battery exchange, swap out batteries in a few seconds, and go on your way. I have seen this in China with electric scooters, and it seems like it could scale well for cars…
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Just go try them both. CCS2 Has separate AC and DC conductors, and the plug is huge owing to having 2 pair of charging pins and backward compatibility. They are more awkward and heavier than a fuel pump, and significantly heavier than the Tesla plugs. It's terrible.
NACS is fundamentally incompatible for 3-phase power. You need a live, a neutral, a ground, and two extra wires for each extra phase. I’ll take my chunky connector with 22kW over your sleek one with 7kW :)
I submit a counterexample of the huge network of Tesla superchargers that can do the job quite well with the NACS connector.
maximum power output of 600 kW and a maximum current of 615A at 1,000V
The practical limits are based on the cars and their batteries, not the charge port.
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This is just imagining future scenarios, but I don’t see an inherent contradiction. That’s one way to end up with a monopoly.
Sure? It’s just weird to set the precedent that opening up your standard means you’re now a monopolist.
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Can you explain why you feel plug-and-charge is so important? I have used chargers with and without it and while it is slightly more convenient to just plug in and go, it doesn't feel like such a huge improvement that I absolutely need it. I agree that having a different app for every brand of charging station would be annoying, but what about just accepting a credit card the way we do with gas stations now?
Have you done any road tripping in an EV? my experience of the app-based charging landscape has been complete horror; apps don’t work, chargers don’t start, payments don’t through.. Just last month was a new app at McDonalds in Sweden, that one asks me to, in the freezing cold, scan a dirty QR code sticker, which takes me to a website I’ve never heard of that wants me to manually enter credit card info, like a phishi…
Unless we have some universal payment processor which all the charging networks agree to use I will still need register through an app or something when I encounter a new brand of charger on a road trip.
It seems like the real solution is a law which requires the stations to accept a more universal payment system like credit cards. I think there is already a law like this in California IIRC.
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>Charging networks are IMHO not a viable long term business model. Sort of like gas stations weren't a viable long-term business model? > Nobody wants the stupid app, they want to charge at McDonalds along the highway while they grab something to eat. So you should put your chargers near convenient amenities... like a convenience store... like a gas station?
Not quite. Gas stations don't have enough to keep a person busy for an entire charge session. You need real shopping or a place to sit down to eat. They will also not be needed in town near your home, since people will just charge at home.
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You must not have had a dad that harped on you about letting your tank get below 50%. If I let mine get down to 10%, my dad would have taken my keys away. There are many reasons people give for this that do not involve zombies and go bags
Your car is rear-wheel-drive and the extra weight you are carrying around in the fuel tank helps your acceleration in the snow?
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Have you done any road tripping in an EV? my experience of the app-based charging landscape has been complete horror; apps don’t work, chargers don’t start, payments don’t through.. Just last month was a new app at McDonalds in Sweden, that one asks me to, in the freezing cold, scan a dirty QR code sticker, which takes me to a website I’ve never heard of that wants me to manually enter credit card info, like a phishi…
IMO that would be better solved by mandating tap and pay payment at EV charging spots. Integrating payments into the charging standard feels like a wild overcomplication by comparison.
If you just send the payment info via the charging plug, now you have to worry about the payment info being stored in the car and potentially stolen if the car has any security vulnerabilities, including in the charging port.
If you use some kind of tokenization or similar then you're inserting third party payment processors into the system and they'll be wanting a cut.
Just put a card reader on the charger and be done with it.
I understand the ridicule that the EU gets sometimes, and especially so when trying to regulate stuff like AI where it seems the EU wants to regulate more than to create start ups etc... But this is one thing the EU just nailed the hammer into the wood immediatly, and rightly so. I can't even remember the time it was. Maybe 2013? 2014? They just set a standard and everyone, even Tesla, adopted it. Every single EV can…
Nit picking, but there's a bunch of Nissan Chademo still around. Like my Leaf. I'm a bit perplexed that Nissan is still selling new Chademo cars here, since it's on the way out. I very rarely need DC charging though, and there's still lots of Chademo locations if I do. That aside, the Leaf is a wonderful car.
I am the founder of Starlight Charging[1]. We are working on crazy-low-cost L2 chargers for multifamily apartments. Plug-and-charge is a sine-qua-non for us. One still major unsolved problem is the lack of agreement on a standard for payment/powerline communication from the EVSE to the vehicle. OCPP 2.0.1 and ISO 15118 is supposed to bring "Plug and Charge" capabilities -- this, in theory, would allow drivers to simp…
I am bearish on universal PnC being practical to implement. Every EV manufacturer has to make agreements with every EVSE operator to use the same root CAs and same billing system. If you think of an EVSE like a vending machine, there really is no interoperability precedent for this kind of payment. Tesla is special case because they operate both the cars and charging network. But if Pepsi owned and operated all of their vending machines, we probably would have seen the same walled garden.