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thevoiceless
wilg
I think it's a good strategy given how people are standardizing on CCS1 in NA. They're embracing CCS1 to a large degree, offering adapters for plugging your car into a CCS charger and allowing CCS cars to charge at Superchargers.
But the connector is definitely better, so they may as well open it up in the hopes that people adopt the nicer plug and then they won't have to change it after all. Basically no reason not to given how things are going with CCS1. I certainly think from a usability perspective it would be preferable if "NACS" was the winner. CCS is not a great design.
maxsilver
> But the (Tesla) connector is definitely better,
I'm not convinced of that. Tesla's connector is thinner and lighter yes absolutely. But Tesla is also weaker and less reliable \ less fault tolerant than standard EV charger cables (See the dreaded EP307 / lock error, something that can't even happen with a normal EV CCS charger)
I definitely think it's preferable for CCS win, as it's the safest, most durable, most compatible, while also being the lowest cost option.
rnk
The tesla plug has a decade of successful heavy use behind it, and it doesn't have a history of failing despite being the most used ev charging system and plug in the world (comparing to the ccs standards around the us and the world). You'll need to provide some references to point to tesla problems. On the other hand I have a brand new us ccs car and every time I go to a public charger it's an open question whether it will work (and yes there are a variety of problems). CCS charging is less reliable, it's a common thing for people to complain about ccs charging problems. With due respect, I think you are wrong.
gpt5
>it's preferable for CCS win, as it's the safest, most durable, most compatible, while also being the lowest cost option.
Can you share a link to back these claims?
gibolt
Not sure where any of these suggestions come from. Superchargers have the highest utilization and uptime in the industry.
Thinner means more accessible/easier to use. CCS is wholly unreliable if it is even slightly at the wrong angle, which is common due to the bulk of the plug and cable.
akozak
Doesn't really matter even if it's slightly technically better. We are WAY too late in the game here (US is already deploying federal funds!), and they should have engaged with open standards a decade ago.
kelnos
Yup, I don't think it matters which one is technically better. They both get the job done, and one is an actual standard that many car makers have agreed upon -- "many" meaning "every single one except Tesla".
If Tesla wanted theirs to be standard, they should have made this move years ago. They missed the boat, and are now scrambling to avoid having to change their own sockets.
gibolt
This implies they didn't, which is false.
CCS was released slightly before the Model S (first to use Tesla's connector). Both were developed at the same time. At the time, there was no viable alternative for Tesla. Now, there is no reason to revert to a significantly subpar option.
nomel
What "game" are they too late for? The number of ports is the game, and the reason my next EV will be a Tesla.
It's very difficult to find charge stations that aren't Tesla, and when you do, they're often used for general parking.
mertd
> and allowing CCS cars to charge at Superchargers.
I'm reading the announcement differently. They are saying future non Teslas who adopt NACS can use the Tesla chargers. It doesn't say anything about current CCS cars being able to use Tesla charging.
matthewdgreen
Tesla announced a plan to open superchargers to non-Tesla EVs earlier this year; Musk announced that they would be adding CCS to US superchargers back in May. Unfortunately Musk is both the official Press contact for Tesla and also a guy who says a lot of random half-baked things, so it's impossible to determine if this was an official policy or just an idea he had one morning. [1]
Even after this move I don't see any way that the Tesla standard gains enough momentum to take over from CCS in the non-Tesla US EV market. If Tesla had done this in 2015 there's a chance it might have caught on globally. With the non-Tesla US EV market locked into CCS and growing rapidly (and Tesla itself already committed to CCS in Europe), it feels like the Tesla standard is doomed. (In fact today's move is actually sort of bad news, since it indicates that maybe Tesla hasn't quite accepted this reality.)
[1] https://electrek.co/2022/05/10/tesla-add-ccs-connectors-supe...
_joel
The T.C. video is very thorough and worth a watch for all EV related shennanigans.
darknavi
That's most T.C. videos I've seen. Often niche topics but I sat* through (and enjoyed) 20 minutes of why an obscure can opener is superior than the mainstream ones.
masklinn
Also why the best toaster was created in the 50s, how petrol lamps work, the wild story of video on discs, and dumb US. automotive standards (or less dumb ones). Followed by a speed run through the entire history of analog photography.
It’s wild not just how varied Alex’s interests are, but how he’ll find interest in the most mundane subjects (christmas lamps) and how well and thoroughly he’s able to present them.
bsimpson
Can you please share a link - who/what is TC?
plorkyeran
So far he's mostly been an exception to Gell-Mann Amnesia, too. The videos I've seen from him that are on subjects which I'm knowledgable about haven't been perfect, but the inaccuracies I've noticed have been nitpicks, not major problems. That combined with his willingness to do further research and make an update video when people object to something he said makes me a lot more willing to trust him on the subjects I know nothing about.
ryukafalz
Hilarious to call their thing the "North American Charging Standard" when every other manufacturer in North America has already standardized on something else.
InTheArena
They are all tiny in comparison...
The vast majority of EVs in the United States use this now, and it's not just historical - Just to emphasis the most popular EV cars in the US today are:
Tesla Model Y 60,271 20% 191,451 50.7% 33.2% Tesla Model 3 55,030 67% 156,357 94.5% 27.1% Ford Mustang Mach-E 10,414 – 28,089 49% 4.9% Tesla Model S 9,171 150% 23,464 79.9% 4.1% Chevy Bolt EV/EUV 14,709 226% 22,012 -11.3% 3.8% Hyundai IONIQ 5 4,800 – 18,492 – 3.2% Tesla Model X 6,552 43% 19,542 16.4% 3.4%
matthewdgreen
Cars can last 10 or more years. If you buy a car today you're making a bet that Tesla and its standard will still be dominant over all other car and charger manufacturers in the year 2032+. That is an extraordinarily foolish bet.
My bet is that within two years Tesla standardizes on CCS for its US cars (thus getting rid of an annoying upgrade/adapter/retrofit problem) and then what'll be left is the sad minority (AKA me) who are stuck with the dying standard and an annoying dongle.
londons_explore
I'd bet a garage will be able to do a connector swap within an hour's labour if Tesla will make the necessary firmware changes.
ip26
Since good adapters exist, it's not really a deeply committing bet.
DannyBee
But there are already 3x more level 2 + CCS ports than tesla ports.
In the US:
There are 36000 individual tesla connections
There are 92000 l2 j1772 ports.
There are 22000 CCS DC fast ports
They are comparing the DC fast number to the tesla number, and ignoring the j1772 number.
wilg
They are comparing fast charging only, yes. (Also all Teslas come with a J1772 adapter.)
reindeerer
Are you trying to imply that just calling something is a standard doesn't make it a standard ? Hmmmm
wilg
Try plugging a Nissan Leaf into a CCS charger.
pseudosavant
Let's just not talk about the Nissan Leaf. The Nissan Leaf is completely out-of-place in today's EV landscape and by current EV standards, it barely counts as a "real EV" you can live with. Speaking as a former Leaf owner.
The Leaf is the only model in the U.S. that uses, or has ever used, the CHAdeMO connection that the Leaf has. Good luck finding a CHAdeMO charger now, it was already hard 4 years ago and it is just getting worse. Most places that had one were Nissan dealerships, but those are almost always broken now. Nissan dealers just don't care about it. Even when they exist and are working, that has to be the most difficult connector I've ever seen for a consumer-grade product.
Their 40kW battery base model costs as much as a 60kW Chevy Bolt. Where I live, 40kW will get you only ~120 miles of range. That small of a battery also can't charge that fast.
The most damning thing of all though is that the Nissan Leaf is the only EV sold today that doesn't use active cooling on their battery pack. It was a horrible oversight on the Gen1 Leaf, but it is absurd for the Gen2 after most of those Gen1 batteries cooked themselves to death (and were eventually replaced after a class-action lawsuit).
rootusrootus
> The Leaf is the only model in the U.S. that uses, or has ever used, the CHAdeMO connection
That's mostly true, but there is the Mitsubishi Outlander PHEV which still uses it.
WaxProlix
Nissan for a long time has stuck to the Japanese standard (CHAdeMO) for their NA cars; some early EVs in America used CHAdeMO as well I think, but afaik only Nissan has stuck with it here.
I think even they've dropped it for future stuff tho.
Hamuko
Nissan Ariya has a CCS port, so even Nissan has standardised on the CCS. The Nissan Leaf is the iPad with the Lightning port of the EV world.
pseudosavant
Lightning? Maybe the OG 30-pin iPod/iPhone connector.
akozak
Tesla is at least 5 years late here, maybe more like 10. All of the US federal funds will likely go to CCS now because they stuck to the proprietary network strategy, despite the OBVIOUS and natural social utility from an open industry-wide standard and charging networks open to all.
For reference here is the DOT's NPRM from June laying out the proposed requirements for states to receive federal funds from the infrastructure package: https://www.federalregister.gov/documents/2022/06/22/2022-12...
sneak
From the article:
> NACS vehicles outnumber CCS two-to-one, and Tesla's Supercharging network has 60% more NACS posts than all the CCS-equipped networks combined.
This suggests to me it’s not Tesla that’s late. If anything is a society-wide EV standard in North America, it’s the Tesla plug.
DannyBee
At one point that number was probably 100% or very close to it. Now it's 60%.
It has nowhere to go but now, and is almost certainly dropping fast.
The number is also a feint.
It's true that NACS outnumbers CCS, but that's because they are only comparing fast-charging spots, which they outnumber.
If you included the J1772 part, tesla is outnumbered at this point in the US.
Going by ports (because that's what tesla is counting in their numbers).
There are ~92000 public level 2 ports (not chargers) in the US. That does not include the DC fast charging ports. There are about 20k of these.
There are 35,000 tesla ports (which tracks, since this is 60% more than 20k) For tesla, there is no difference between dc fast charging and non ports.
So the number cited is, as per usual for tesla, misleading, since it ignores the level 2 ports that are commonly used. There are 2.5x more of those, and combined with CCS, there are 3x more ports total than tesla's standard.
I like the connector for sure, but it's way too late.
novok
Those metrics are deceptive, because tesla has consistently working chargers while the other ones tend to be broken at a way higher rate.
chroma
It's great that J1772 is ubiquitous, but it charges too slowly to be useful for road trips. It's meant for "destination charging" such as hotels and homes, where the car will be sitting around for hours. It can't substitute for fast DC charging, so it shouldn't be counted.
hedora
The way I read the "two to one" number is that Tesla's market share in NA is collapsing.
Even if competitors decide to use the Tesla standard, it'll be a few years before they ship it. By then, Tesla's current 66% share of deployed vehicles will almost certainly have dropped to less than 50%.
Also, Musk said they're opening up superchargers to CCS soon, so car buyers like me don't think the Tesla connector is a differentiator any more.
Having said that, I have a CCS car, and charge station availability is totally fine, at least in the parts of California where superchargers exist.
rnk
Tesla has been the defacto standard, yes. But their lead has been declining. All the other ev car drivers would have been better off if they could use tesla charging stations, since the entire industry is basically terrible except for tesla superchargers. With tesla saying they'll finally support ccs cars in the us I think ccs will win. You have to point to the clever infrastructure bills in congress, I think that money is what pulled tesla through to supporting ccs (eventually).
kgermino
I don't see anything new here (other than the name).
For those who don't know there are two charging connecters used for new electric cars in the US: Tesla (now called NACS and only used on Teslas) and CCS (used by everyone else). There's nothing here to indicate that that's changing and it feels like a move by Tesla to try turning around the momentum in a format war they're losing, even if they have a wider installed base today
stetrain
There’s an actual set of specification documents available to download. That’s an improvement.
Previously the only public info was their patent filings.
It also sounds like they are offering specific parts (inlets and connector cables) for sale since they are providing datasheets on them.
hedora
I wonder if that means we'll soon have cheap dongles to charge CCS cars at supercharger stations. I'd pay (maybe) $200 for such a thing, mostly because sometimes the CCS chargers are busy.
kgermino
Interesting thanks! I thought the specs were already published. Didn't they say they were going to do that a few years ago or am I misremembering something?
stetrain
Nope. They posted a list of patents with a pledge that basically said “We won’t sue you about our patents if you don’t sue us about yours”
The connector patents were on that list but that wasn’t a real spec.
sigmar
What legal guarantee is there that Tesla won't reverse course in the future? Say a charging station or car manufacturer adopts this connector and then in 5 years Tesla says "well actually, we've got these patents and we're going to start charging you to sell cars/charging stations"? Publishing the specs and saying "we won't enforce patents" isn't a legally binding guarantee
Symmetry
I'm not a lawyer but that sure sounds like it would be a case of promissory estoppel to me. That is, if someone relies on Tesla's word and makes investments based on it they'd have a legal case to prevent Tesla from trying to exercise those patents against them. But I do hope there's an actual legal grant of rights as well.
sigmar
Haven't heard the term and I'm googling it to understand better. Is there case law where this was tested in the context of patents on ports? I'm thinking Tesla could say, "we changed our minds but you can keep selling any of the Toyota 2023 models, you just can't make a new car model with the port. therefore we aren't causing you financial harm or injury by relying on our promise"
Dylan16807
You're asking for a very specific citation there.
But it doesn't matter, they could give everyone who asks a 20 year license for $1.
Also courts aren't stupid.
advisedwang
The press release says:
> we are opening our EV connector design to the world. We invite charging network operators and vehicle manufacturers to put the Tesla charging connector ... equipment and vehicles
This does not even promise that it is free. "open" and "invite you to X" sound good but are very vague.
mike_d
Yeah, Apple has used similar language in marketing for their Lightning Connector licensing program.
reindeerer
> What legal guarantee is there that Tesla won't reverse course in the future?
None. There would have to be a governing body set up for this to have any legs
wilg
For context, North America's current "standard" is CCS1, which is not the same as Europe, which uses CCS2. So North America already has its own weird plug. The Tesla plug is definitely better from a usability perspective. Very curious to see if there is a major technical advantage for one or the other.
xxpor
Ccs1 vs 2 comes down to the fact that the base plug (the ac part) has to be different between the two. Europe supports 3 phase because it's common there, while the NA plug doesn't, because 3 phase is unheard of in residential installations, and it has to support 120 level 1 charging.
morio
Huh? CCS1, CCS2 and NACS are DC. You are probably thinking Type 2 (Europe) which is indeed 3 phase and j1772 (US) which is single phase.
Dylan16807
Your distinction doesn't matter. They're talking about the plug/socket shape, which is shared between DC and AC standards.
xxpor
Look up the difference between CCS1 and 2. It's just J1772 vs Type 2. The DC part is the same.
wilg
Doesn't seem like it has to be different, right? The Tesla/"NACS" plug supports three-phase.
Dylan16807
How? Are you sure?
It has two big power pins, one smaller pin dedicated to ground, and two tiny pins that look completely unsuited for power.
There's a "mobile connector" that can convert 3 phase, but that has an entirely different plug on the wall side.
mike_d
In the US Tesla uses its own proprietary connector, in Europe they use the Mennekes plug.
Hence why they are calling this the "North American charging standard."
modeless
I wish they had gotten more serious about this sooner. They had talked about offering the plug and network to other manufacturers before but there wasn't any movement on it. I expect that now it's too late and we'll be stuck with terrible CCS forever, but I'd be happy to be wrong.
gibolt
Tesla is still >70% of EVs in the U.S. and Aptera has already adopted their plug (hopefully shipping soon).
We are still within bounds of choosing the superior connector. It isn't too late like in Europe, especially since US bound vehicles are already using a different plug than their European counterparts
mike_d
"Our forecasts suggest that Tesla’s market share will decline from 70% in 2021 to (an estimated) 11% by 2025" -Bank of America
The major auto manufactures are on track to have 60% of all new cars EVs by 2026. Tesla just can't compete with that volume. They need to start getting ready for the new standard now, not pulling this nonsense.
hedora
Tesla is claiming 66% now that it is 2022 (down 4%), so BofA's projections are in the correct direction, at least.
rootusrootus
> Tesla is still >70% of EVs
Only by strict volume of cars on the road. Looking at manufacturers and models, they are just a tiny fraction of the market. And judging from how fast their market share is slipping, we're probably only a year or so from them being in the strict minority by any metric.
gjsman-1000
> It has no moving parts, is half the size, and twice as powerful as Combined Charging System (CCS) connectors.
It's just a connector. Why did CCS have to be twice as big then? What's the tradeoff CCS took?
Edit: I just looked up a size comparison of CCS vs Tesla/NACS and what the heck happened...
bombcar
CCS was backwards compatible with existing standards, and added stuff to it.
It would have been like USB-C being glued to the top of an old SCSI connector.
Tesla controlled both ends (literally) on theirs and so they could optimize for size/etc.
chrisseaton
Why is CCS so absolutely enormous and so technically limited? What's the story behind how it got so bad? There must be some kind of trade-off Tesla took that CCS didn't?
toomuchtodo
https://news.ycombinator.com/item?id=27907051
TLDR CCS wanted to be backwards compatible, while Tesla planned fast charging to be first class with their standard. At the time, no one was doing fast charging at Supercharger currents (150kw). CCS was bolted on to J1772.
boardwaalk
Considering how early that decision was made in the timeline of electric vehicles (how early we still even are) — getting saddled with a backwards compatibility kludge kind of sucks.
criddell
It’s still early days and certainly not too late to change it.
ip26
That really doesn’t explain all of it, J1772 is not really that big. CCS adds a ton of bulk on top of J1772.
Dylan16807
J1772 can't carry enough amps through those pins. So it needs two more huge pins in a separate compartment.
CCS isn't the absolute smallest way to add two more huge pins, but it's pretty close.
hedora
Is bigger actually worse in this case?
At least in theory, it should be possible to make it mechanically stronger than a smaller connector.
I've heard of charge station cable connectors failing do repeated bending stress, and my car has multiple warning stickers saying not to plug into a charging cable that is under tension.
rootusrootus
> technically limited
Is it? I can go to a 350kW charger with CCS1. What's the max for a supercharger? 250kW?
chrisseaton
Says 1 MW?
rootusrootus
2500 amps? I don't think liquid cooling is enough to allow for that.
You are probably thinking of the megawatt charger for the semi, which is different.
A regular V3 supercharger caps out at 250kW. There are rumors that the V4 might get closer to 400kW, but as far as I know those remain rumors. There's also a rumor of an upgrade of V3 superchargers to about 325kW, which would at least be getting close to CCS1.
dottedmag
I'm not privy to CCS design process, however several possibilities spring to mind:
- Backward compatibility: CCS is backward-compatible extension of J plug, and can't share AC and DC lines due to that.
- Higher safety margins in CCS
- CCS design by committee
- Better engineers at Tesla
advisedwang
It sounds like folks are assuming this will be free for implementors and license universally with little restriction. Nothing in this press release says it's free. "open" could just mean "open to apply", for example. " We invite charging network operators and vehicle manufacturers to put the Tesla charging connector..." could be read as an invitation to negotiate.
I expect licensing terms to be announced, and I bet you large users will have to pay.
jsmith45
The specification is posted publicly, with no listed restrictions, so the only method Tesla has of licensing this is via enforcing their patents.
While I expect car manufacturers would want to negotiate a custom patent license, others interesting in using the patents (like say EVSE manufacturers) could technically just utilize the Tesla patent pledge.
Of course if they do so they cannot later sue Tesla for any form of IP infringement, without getting countersued over the patents. Thus if you use tesla's patents under the license, you can sue them for copyright, patent, trademark, trade-secret or any other right, without getting countersued. This would mean Tesla could openly make full blown counterfeits of your companies products, and you cannot sue them without getting countersued for patent violation. So I'm doubting terribly many will want to take up this offer, but they technically could.
advisedwang
The risk that Tesla sues over patent infringement stands alone of any tit-for-tat infringement. Realistically, it's much more likely Tesla will just sue for $ rather than try and make a counterfeit of an infringer's product. No sane counsel would let their company knowingly and openly infringe on major patents like this.
The spec being open put up on a website does practically nothing. Patent's are public and it'd be trivial to reverse engineer a charging standard anyway.
binkHN
Yay—wish they did this sooner. Anyone know if this is one of those “we will give you a royalty-free license to use our patent for this if you promise never to sue us?”
1970-01-01
How much cheaper is it to build a vehicle with the NACS port vs J1772 port? If the build savings are enough, I foresee manufactures making the switch.
rootusrootus
Why would they switch? Then their customers couldn't access CCS chargers OR the supercharger network. That's not exactly a selling point, no matter how much money they save on the connector.
Get the top HN stories in your inbox every day.
Tesla said in May that it would be adding CCS adapters to its Supercharger stations, already used in Europe: https://electrek.co/2022/05/10/tesla-add-ccs-connectors-supe...
Now they're trying to declare their own charger as a "standard", after launching a $250 adapter in September to use the actual standard plug?
Also, obligatory Technology Connections video: https://www.youtube.com/watch?v=sZOuz_laH9I