China Turns To CHAdeMO For Fast Charging: Single Unified Standard

AUG 24 2018 BY MARK KANE 57

CHAdeMO and Chinese GB/T could harmonize into a single standard. Imagine that!

Almost shocking news comes to us from Asia, where two fast charging standards – the Japanese CHAdeMO and Chinese GB/T could be harmonized into a single next-generation ultra-fast charging standard with backward compatibility to older CHAdeMO and GB/T cars.

The Memorandum of Understanding between CHAdeMO Association and the China Electricity Council (CEC) for co-development of a joint standard is to be signed on August 28th in Beijing, China with the green light from governments of both countries.

Chinese CEC decided to unify with CHAdeMO because the two standards are rather similar and utilize CAN for communication between the charger and the car, while the CCS Combo is utilizing PLC (there are two different types of CCS, that weren’t unified even by the CCS alliance of manufacturers).

It’s not yet known what level of performance would be offered by the new standard. CHAdeMO recently engaged 2.0 with up to 400 kW.

Because the Chinese market is the world’s largest and CHAdeMO is still very popular worldwide (over 18,500 chargers installed), the new standard with backward compatibility will be a very strong contender against CCS combo.

New GB/T Fast Charging Standard

More about the project in the press release:

CHAdeMO to sign an MoU with China Electricity Council (CEC) for co-development of next generation ultra-fast EV charging standard, which is expected to lead the way towards a single harmonised future standard, all the while ensuring backward compatibility with both current CHAdeMO and GB/T standards
  • CHAdeMO signs an MoU with China Electricity Council (CEC) for co-development of next generation ultra-fast EV charging standard
  • New ultra-fast charging standard will ensure backward compatibility with both current CHAdeMO and GB/T standards, in order not to penalize current EV users
  • Both Japanese and Chinese governments support this industry initiative, which is expected to lead the way towards a single harmonised future standard

CHAdeMO 2.0 – up to 400 kW (1000 V, 400 A)

CHAdeMO Association announced today their decision to jointly develop the next generation Ultra-Fast charging standard with China Electricity Council (hereafter CEC), China’s official association of utilities in charge of their national regulations and standards related to electricity.  Two entities will sign a Memorandum of Understanding on August 28th in Beijing, China, to kick-start their collaboration.

CHAdeMO protocol, a Direct Current fast charging standard recognised by the IEC* and the most popular international standard with over 18,500 charging points covering the EV market worldwide, set its specification at 500V and 125A when it was initially defined in 2009. After updates in 2017 and 2018, its current specification goes up to 1000V and 400A to cater to the market demand.

CEC, a Government approved association in charge of starndardisation of EV charging equipment. is evaluating high-power charging technologies and promoting demo projects and pilot studies for the creation of a new, Ultra-Fast charging standard to prepare for the expected market needs in the future. CHAdeMO Association and CEC reached an agreement to jointly proceed with such development.

This joint development should lead to a next-generation Ultra-Fast charging technology that is safe and versatile. As the new Ultra-Fast charging standard aims to ensure interoperability with existing CHAdeMO and GB/T fast charging standards, it is also expected that the new standard will be adopted not only in Japan and China but also in many other EV markets worldwide, and to contribute to the further roll-out of EV charging network.

CHAdeMO’s Secretary General Dave Yoshida said: “We are pleased to work together with CEC to develop an ultra-fast charging standard to prepare for the future charging needs, while ensuring safety and interoperability, which is a core value of CHAdeMO protocol. We believe the outcome of this joint development will pave the way towards a single harmonised standard in the future.

This joint development falls into one of the strategic categories defined as “Enhancing international harmonisation in vehicle electrification policies” in the Japanese government’s New Strategy for the automobile industry, which was recently announced by the Ministry of Economy, Trade and Industry, and will be strongly supported by both the Japanese and Chinese governments.

The Memorandum of Understanding aims to kick-start harmonisation for the next-generation international charging standard, for accelerating further deployment of electrified vehicles in wider vehicle categories, by starting the joint development activities based on the cutting-edge technologies foreseeable in the near term as an initial step.

Categories: Charging, China

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57 Comments on "China Turns To CHAdeMO For Fast Charging: Single Unified Standard"

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Great. Now let’s get a single standard for the US!

I still think that the Tesla system is the best but agree we need one good standard worldwide.

Which Tesla system: the US, or the European one? 😉

CCS1 and CCS2 are the same except for the plug.
Good to see Asia moving towards a single standard. This will then spread to the whole region.
Using different standards within the same market is just nonsense.

Japan and China are of course two (very) different markets. Same region though.

CHAdeMO is introducing 400 kW charging soon.

It is already announced.

400kW = 400A * 1000V
CHAdeMO Association Version 2.0

why shocking news? css is a tesla thing.
companies dont want pay license fee.

no wonder chademo dominates
i think was part of Nissans plan after there announced to invest more in china.

Neither GB/t, Chademo nor CCS require anyone to pay licence fees.

as manufacturer if you want join teslas charging network you must pay fees

the other point is if its a politacal decision in china not an economical it will maybe because of the usa trade politic.
whatever we will never known the real story

Tesla has installed 1348 Supercharger Stations worldwide at a average cost of ~$300k each. If you want to access them for your company Tesla will charge you a fee per car you put on the Network.

Imagine that. Other OEMs can’t free ride on Tesla’s investment.

You are paying not for the connector but for the electricity and software connection.
There is a BIG difference there.

Hopefully, Rivian will be smart and hook into that network.

You may not know, but we know that CCS is not Tesla.

Wait, I’m confused. How is css a Tesla thing?

CSS is not a “Tesla thing”… it’s not even an EV.

SAE-CCS-Combo1 is most definitely not a Tesla thing.

CCS-Combo2 is also not a Tesla thing.

CCS uses a completely different communication method called PLC (Power Line Control”.

All the rest of the world’s DC fast charging standards use CAN bus communication:

1. “New GB/T” (obviously, not the actual name… 900kW = 1500V * 600A)
2. CHAdeMO (mostly 50kW, already approved for 100-150kW, as well as 400kW)
3. Tesla Supercharger (120kW, soon to be 200-250kW)
4. Tesla Megacharger (probably 1000-1500 volts at 1000-1500 amps, or about 1000kW)

Explains why Tesla has a Chademo adapter but not a CCS one. Translating PLC to CAN is probably not trivial.

PLC is actually Power-Line Communication. (Originally developed as an alternative to WiFi and/or broadband internet connections; but quite controversial in these capacities…)

Interesting to see China do anything in conjunction with Japan. I hope this bodes well for increased cooperation in the region. There is a LOT of bad blood to overcome though.

That’s bad news for European market/carmakers.

How is that bad news? It is actually good news. Going forward they don’t have to integrate different standards for cars that go to Japan and China.

It’s bad for exactly the same reason it would be bad if different gasmobile brands required different shaped nozzles on gas station pumps, so your car could only fill up at some gas stations but not others.

The lack of a universal charging standard is holding back the EV revolution.

And before this news, it looked like CCS was pulling away as the clear international leader, with most auto makers abandoning CHAdeMO. But since China is now the #1 market for EVs, this news indicates the “EV charging standards war” will continue indefinitely. 🙁

It is better now than before that news. Before this announcement European car manufacturers had to put Chademo onto cars for Japan and GB/t onto cars for China and India. This will now hopefully converge into a single connector.
This is a Mercedes EQC charging of Chademo (see the Mercedes star in the “filler” flap)

It is testing done in Germany for the Japanese market.

It doesn’t change the situation for CCS at all.

The Germans are not going to give up CCS. For the regional markets that it is in. CHAdeMO is posed to remain the dominant world leader, where still today, CHAdeMO significantly outnumbers all its competitors in EVERY market. As of August 2018, there are the following numbers of chargers: 18,030 CHAdeMO worldwide 6,260 Europe – CHAdeMO is one of two OFFICIAL protocols in the European Union). Even with German auto makers and German politicians pulling several stunts to restrict competition, and favor CCS (going as far as attempting to outlaw competitors like Tesla and Nissan)), they haven’t been very successful. 2,320 USA 2,020 Asia 7,250 Japan 180 Other CHAdeMO is the only DC charging protocol with a common plug worldwide. CCS uses different regional plugs, and is not present in large markets like Japan and China. GB/T Is restricted to China only. This is usually the part where somebody tells me: a. “Hey, Tesla is a member of the German group promoting CCS”, and that’s certainly true. Tesla has been a member of the CHAdeMO Association since before there was a CCS group. b. “Tesla can just cludge on some DC pins in Europe, and it will be CCS-Combo2 compliant.”… Read more »

Such a long post with really no information. This Chinese Japanese declaration doesn’t change anything for CCS it never had a foothold in those two markets.
Actually only North America uses a different CCS plug and even they only use it for cars. For trucks they use the same CCS plug as everyone else.

Gas stations has 4 or 6 different nozzles at every gas station pump:

But it is always portrayed as bad if the US doesn’t standardize to CSS. It seems Chademo is as deserving through Nissan sales in the US as a much as any CSS car.

SAE has already standardised CCS1 for cars and CCS2 for heavy vehicles. The US just doesn’t have legislation enforcing those standards in public charging stations. Unlike the EU, Japan and China. All of those enforce a standard in public charging stations. This article is about Japan and China wanting to harmonise their enforced standards which will result in the reduction of the number of standards out there. The US is unique as in its recommending institution SAE recommends different standards for cars and heavy vehicles.

…and yet Tesla Supercharger and CHAdeMO easily outnumber CCS in the 🇺🇸

Reminds me of this XKCD comic:

This is the first time I heard that GB/T uses the SAE J1939 CAN protocol. This makes sense, since heavy trucks are mostly J1939 based internally (as well as a lot of agricultural equipment and some military vehicles). So the DC charging control is a simple extension of the vehicle control “backbone”.

At least this standard is directed towards the high power applications, so it may get its niche. However, with CCS getting to 400kW and maybe a little more in the future, this standard may become of little improvement over what already exists. It would be awesome if they could push it beyond 1MW before releasing it.

I will be curious to see what Tesla comes up with for their Truck.
Right now, they are probably using 1 or more tesla connections, but I would be amazed if they do not come up with a MW connection, so that a semi can refill in 1 hr, while a car might re-fill in 5-10 minutes.

Tesla has talked about making “Megachargers” for the Semi Truck, and the prototype trucks have an 8-pin connector, obviously quite different from the standard* U.S. Tesla connector.

*For some value of the term, given the variety of competing EV charging protocols!

Funny seeing Tesla as the slowest option on the list! Good thing it doesn’t reflect reality and only Tesla has a widespread network today.

How is it a good thing except for Tesla fanboys who doesn’t like EV that are not Tesla ?

BTW the absence of widespread network is the obsolete argument still used 3 years ago by the anti-EV against Tesla.

Tesla is not the slowest … Tesla does provide Tesla-to-CHAdeMO Adaptor. No reason Tesla will not provide a Tesla-to-HPC (High Power CHAdeMO / Connector).

In the press release handouts; both GB/T and CHAdeMO to HPC connectors are shown. Not much different in size/concept to the Tesla-to-J1772 that comes with all Tesla vehicles manufacturerd/delivered today.

The good news for current CHAdeMO equipped BEV owners is a HPC-to-CHAdeMO adaptor is part of strategy for offering backwards compatibility.

Tesla Superchargers are modular. The output can be increased by stacking in more modules. They have increased the output of superchargers a number of times on their way from 90 kW to 145 kW

That list has future plans for those standards and for Tesla, the currently shipping version. A bit misleading, as we don’t know the specs for Supercharger v3 yet. The hint is that the Model 3 is listed at 525 amps.

This is very good that two charging standards are merging into one. I wounder are they going to have a plug shape on the charging station that can plug into both a chamo and a china plug all on the same plug.

Very sorry to see this. This is shaping up to be as bad as, or perhaps even worse, than the VHS vs. BetaMAX “war of standards”.

Before this, it looked like CCS was the clear winner, and that almost everyone except Nissan had abandoned CHAdeMO. 🙁

Not surprising. Nissan had a huge installed base, since it had been using CHAdeMO years before CCS was available.

Is it really any different than having gas and diesel nozzles? EVgo stations all have both connectors, so not a problem.

If true, that is big news. It would ensure that CHAdeMO will be around indefinitely. I’ve had a 2012, and 2014 Leaf, and now a 2016 Kia Soul EV, all CHAdeMO. The connector is grossly over-engineered, and sometimes takes two hands to insert, but it is bi-directional and uses CAN, so it will remain a useful option in the future.

And many persons where hoping that the Japanese CHAdeMO will be phased out over long time and a global CCS will push through. Now with the huge Chinese EV market choosing the bi-directional CHAdeMO instead CCS the global market will be split for longer.

I’m confident that there were plenty of German auto manufacturers and German politicians that think they can push CCS worldwide, but they aren’t doing so well within the European Union.

It never was a chance for Chinese to choose CCS anyway, only GB/T. They wanted their own standard just because. Not that such detrimental approach is different from other countries or regions or companies suffering from “not invented here” aversion, it is quite common, and CCS appearance is another example of it.

Hopefully they will be able to make it really compatible and we will have one less standard to care about, though I’m not sure how they will do it in practice. They didn’t went too far from Chademo when “inventing” GB/T version of it, so maybe.

I tried to find the source for this report, which appears to be the Chademo website itself. Unfortunately the Chademo website appears to have been hacked, and I was fooled into clicking on something (“prove you are not a robot” it said). I am not scanning my PCs for viruses. How to report such a thing, I wonder?

Looks like the people pushing Chademo have gotten their wish. If China goes for Chademo that will mean CCS is a dead duck.

Haven’t heard any particulars, but is the new Chademo jack going to be combined with the standard level 1 and 2 offerings (type 1) for the car? If so, then it would take away the price penalty the old Chademo system had.

Years ago while discussing the issue with Priusmaniac, I voted for 1500 volts as the logical pressure level for a 1 Megawatt charger. Looks like I’m in good company there. High enough to keep the current reasonable and the cables light, but not high enough to generate corona issues.

In the previous comment – I asked a question – then I put factual commentary… What is negative about that? Especially since no one answered my question.

Liquid cooled cables for CCS are already deployed by Fastned and Ionity. The chart is wrong

Phoenix Contacts did develop them. They are already in use.

I’m all for chademo in the UK, still more than double the CCS chargers and they seem to beote reliable…

Have to say though it seems that UK as a gentleman’s agreement to have all the three main standards for rapid charging so that lessens the issue..

This will help… China ratifying CHAdeMO and incorporating it will make it the second world standard next to Tesla… CCS is a time waster.

Your chart says Tesla discontinued its liquid cooled cable. Did it really discontinue the experiment or just shelve the rollout for now?

I believe I read a while back that they actually switched back the one experimental station to the standard cables, to avoid special maintenance needs.

Reddit thread from July 2018 had the information about Superchargers going to $existing + dual-cable CCS-Combo2 + liquid cooling. The first part has been confirmed…


Nissan was right after all.