500kW charging in NY?!?!

hydbob said:

https://www.reuters.com/business/autos-transportation/gravity-opens-fastest-ev-charger-us-public-new-york-city-2024-03-04/?utm_source=reddit.com

Click to expand...

Did I miss something or does this leave out if it's going to be CCS or NACS?

Halodde said:

Did I miss something or does this leave out if it's going to be CCS or NACS?

Click to expand...

Looks like their equipment is CCS currently. Not surprising given the federal funding still requires CCS.

Halodde said:

Did I miss something or does this leave out if it's going to be CCS or NACS?

Click to expand...

Also, not sure if NACS can support that speed?

The company is Gravity? Wow, the irony!

Well, it will be interesting if it gets opened to the public aside from fleet vehicles. In my mind, charging speed numbers are like range numbers. They obviously vary wildly with conditions. And since we've all beat to death the fact that we see charge speed numbers from 65 kW to 325 kW on our cars, who knows what an average charge speed would even look like on a 500 kW charger. Situation, environmental conditions, and the car's battery management system probably have more to do with speed than the ultimate capacity of the charger itself.

hydbob said:

Also, not sure if NACS can support that speed?

Click to expand...

I thought CCS1 connector was rated for 500A and the NACS connector was rated for 600A, assuming the cable and cooling can support that much. Since the Lucid DE and GT are currently the highest voltage cars at 924 volts fully charged and much lower voltage at low SOC, there is no way to get 500kW from a CCS connector unless I am wrong about the CCS1 current capability which is possible.

Adnillien said:

I thought CCS1 connector was rated for 500A and the NACS connector was rated for 600A, assuming the cable and cooling can support that much. Since the Lucid DE and GT are currently the highest voltage cars at 924 volts fully charged and much lower voltage at low SOC, there is no way to get 500kW from a CCS connector unless I am wrong about the CCS1 current capability which is possible.

Click to expand...

https://en.wikipedia.org/wiki/Combined_Charging_System agrees with you and says the max is 350kW, but then it lists a bunch of 400-700kW CCS chargers without explaining anything about how that works. Maybe it's just that over 500kW it needs special cooling? I don't know.

Now I'm curious what happens if an Air Dream/GT goes to the mentioned Nxu 750(?) kW charger in at 1828 N. Higley Road., Mesa, AZ. It has a 10/10 on plugshare!

Adnillien said:

I thought CCS1 connector was rated for 500A and the NACS connector was rated for 600A, assuming the cable and cooling can support that much. Since the Lucid DE and GT are currently the highest voltage cars at 924 volts fully charged and much lower voltage at low SOC, there is no way to get 500kW from a CCS connector unless I am wrong about the CCS1 current capability which is possible.

Click to expand...

Some of Phoenix Contact's cables are rated to 700A in 'Boost Mode' and 500A continuous. "** Boost Mode indicates the maximum charging power that can be achieved for a short period of time during the charging process. The possible time span depends on the environmental conditions and the type of installation in the vehicle. For details, please refer to the technical data sheets, which you can download here or find on our product pages.*"

Lucken said:

The company is Gravity? Wow, the irony!

Click to expand...

Partnership incoming..

By the way, do Airs still have the same 350 kW max on these stations? Is there ANY EV in the US that can charge at these speeds?

The question is: what's the point if their taxis can't accept this speed? Just proof of concept?

You don't build for what we have....you build for what will come.

Given the claimed size of these chargers being about the size of a carry on suitcase, I wonder how they are cooled if they are cooled. If it is cooled, I wonder how they do that is a small size. If they are not cooled, they will have a very short duty cycle or become current limited after a short charging session. If cars could take 500kW, it would not take long to add 50% or 60% of your battery.

Adnillien said:

Given the claimed size of these chargers being about the size of a carry on suitcase, I wonder how they are cooled if they are cooled. If it is cooled, I wonder how they do that is a small size. If they are not cooled, they will have a very short duty cycle or become current limited after a short charging session. If cars could take 500kW, it would not take long to add 50% or 60% of your battery.

Click to expand...

They claim to have some custom liquid cooling built in, including for the cable.

segbrk said:

They claim to have some custom liquid cooling built in, including for the cable.

Click to expand...

I see on their website that they claim greater than 500A with liquid cooling. This implies that the cooling is supplied from central source and shared across the dispensers. Similar to the power cabinets with 30kW modules stacked for up to 20MW. Overall it looks like very impressive equipment.

They also have a 200kW dispenser that is rated for 200A meaning it can only hit 200kW when supplying 1000V. Likely the same for the 500kW unit making it 500A and 1000V.

I hope someone from the area tries it reports back on the charging performance.

segbrk said:

They claim to have some custom liquid cooling built in, including for the cable.

Click to expand...

ICE NINE

@Adnillien said:
"I hope someone from the area tries it reports back on the charging performance."

Well ... I go to Manhattan pretty regular ... I guess I can at least look at it. But not sure I want to be the early adopter for that kind of power.
... somebody go first. I may be there this week or next.

Cosmo Cruz said:

ICE NINE

@Adnillien said:
"I hope someone from the area tries it reports back on the charging performance."

Well ... I go to Manhattan pretty regular ... I guess I can at least look at it. But not sure I want to be the early adopter for that kind of power.
... somebody go first. I may be there this week or next.

Click to expand...

You will not be first, there is a Lucid in one of their pictures:

500kw from 1-2% and average of 80kw up to 80%....sounds wonderful