NACS moving forward.

[Billyk24]

Now that many have had a chance to use our adaptor or Magic Docks at Tesla locations, why wouldn't we want to move towards using a lighter weight and more flexible cable in the future? Is this combination more expensive than what exists at current ccs locations?

Sponsored

 

[RickMachE]

They are liquid cooled. Many threads on this.

 

[emichnov]

Why doesn't every fast charging vendor use liquid cooled cables?

 

[scottieboy]

Why doesn't every fast charging vendor use liquid cooled cables?

They are massively expensive.

 

[emichnov]

They are massively expensive.

That makes Tesla's charging infrastructure that much more impressive. When everyone else is installing 2 or 4 (at most) stalls of a less expensive technology, Tesla is installing 12, 16, or 24 stalls of the more expensive. And supposedly, the charging division was profitable! Boggles the mind why everyone else is so far behind.

 

[scottieboy]

That makes Tesla's charging infrastructure that much more impressive. When everyone else is installing 2 or 4 (at most) stalls of a less expensive technology, Tesla is installing 12, 16, or 24 stalls of the more expensive. And supposedly, the charging division was profitable! Boggles the mind why everyone else is so far behind.

Yet musk laid off all 500 employees of the super charger department.

 

[tuminatr]

Yet musk laid off all 500 employees of the super charger department.

Probably about being profitable, 500 people is a huge expense

 

[RogueLegend]

Why doesn't every fast charging vendor use liquid cooled cables?

They don't need to. CCS2 was designed to handle 1000V- you can drive the same power at lower amps, meaning less heat. NACS is currently only rated to 500v max- depending on the SC you hit, meaning it needs to drive higher amps (and thus more heat) to deliver the same power.

Not just that, the charging curve has been demonstrated to be better (due to lower battery heat) at higher voltages.

CT owners are having issues at some Tesla SCs as it works on the 800V architecture. Out of Spec just documented a 1K mile road trip where issues cropped up depending on the version of the SC Kyle hit. He even mentioned some heat issues at NACS chargers even with cooling in place.

Overall, CCS has been demonstrated to handle 700 KW/h with some 1 MW implementations being tested while NACS is still sitting on 250 KW/h.

I appreciate the scale of what Tesla accomplished with the SC network, and while there are really good reasons to move to NACs, some automakers have really good reasons to stay on CCS. The biggest issue right now with CCS is not the standard, but the companies running them (what most people don't realize is that NACs uses the CCS communications protocol- it works just fine). I agree that the cable and contact sizing could be smaller, but I don't think it's as big an issue as people make it out to be.

Any vehicles with 400V stand to gain the most in moving to NACs today. Any vehicles working on 800V may not have great experiences, especially since we don't know what V4 will look like (it's been suggested it will offer up to 1000V, but no official specs have been released- most people are guessing based on some anecdotal evidence). All we know from Tesla directly is that it will hit 350 KW/h charging. If it's still running on 400-500V, then the curve won't be all that great.

 

[RickMachE]

That makes Tesla's charging infrastructure that much more impressive. When everyone else is installing 2 or 4 (at most) stalls of a less expensive technology, Tesla is installing 12, 16, or 24 stalls of the more expensive. And supposedly, the charging division was profitable! Boggles the mind why everyone else is so far behind.

Tesla began building their Supercharger network in 2012.

Electrify America was created in Jan 2017, and rolled out their first location in May 2018. So Tesla had 6+ years leadtime.

 

[Billyk24]

They don't need to. CCS2 was designed to handle 1000V; you can drive the same power at lower amps, meaning less heat. NACS is currently only rated to 500v max- depending on the SC you hit,, meaning it needs to drive higher amps (and thus more heat) to deliver the same power.

Not just that, the charging curve has been demonstrated to be better (due to lower battery heat) at higher voltages.

CT owners are having issues at some chargers as it works on the 800V architecture. Out of Spec just documented a 1K mile road trip where issues cropped up depending on the version of the SC Kyle hit. He even mentioned some heat issues at NACS chargers even with cooling in place.

Overall, CCS has been demonstrated to handle 700 KW/h with some 1 MW implementations being tested while NACS is still sitting on 250 KW/h.

I appreciate the scale of what Tesla accomplished with the SC network, and while there are really good reasons to move to NACs, some automakers have really good reasons to stay on CCS. The biggest issue right now with CCS is not the standard, but the companies running them (what most people don't realize is that NACs uses the CCS communications protocol- it works just fine). I agree that the cable and contact sizing could be smaller, but I don't think it's as big an issue as people make it out to be.

Any vehicles with 400V stand to gain the most in moving to NACs today. Any vehicles working on 800V may not have great experiences, especially since we don't know what V4 will look like (it's been suggested it will offer up to 1000V, but no official specs have been released- most people are guessing based on some anecdotal evidence). All we know from Tesla directly is that it will hit 350 KW/h charging. If it's still running on 400-500V, then the curve won't be all that great.

What are the Tesla Semi charger specifications? Is it the V4 1000V model?

 

[emichnov]

What is a "Tesla Semi charger"?

 

[mdolan92869]

What is a "Tesla Semi charger"?

I would guess the ones to charge semi trucks. Aren’t they supposed to be working on that for the big rigs?

 

[Billyk24]

What is a "Tesla Semi charger"?

Attached file reveals a new design (V4 like

) to handle the massive energy load required for the Tesla Semi. This link provides more information: Tesla Semi Will Charge At 1+ MW Using New V4 Charging Cable (insideevs.com) It appears NACS will be utilized by "cars" but a new "hardware interface" may be required to the Tesla Semi-Truck. The article also mentions the use of Tesla storage batteries-Mega Packs- at these locations.

 

[emichnov]

Thanks!

 

[RogueLegend]

Attached file reveals a new design (V4 like

) to handle the massive energy load required for the Tesla Semi. This link provides more information: Tesla Semi Will Charge At 1+ MW Using New V4 Charging Cable (insideevs.com) It appears NACS will be utilized by "cars" but a new "hardware interface" may be required to the Tesla Semi-Truck. The article also mentions the use of Tesla storage batteries-Mega Packs- at these locations.

That article was 2 years ago. Note the release date was supposed to be for 2023. Also note:

"During the presentation, Tesla confirmed that the new 1+ MW charging system is coming to the upcoming Tesla Cybertruck. "


It's not clear what's meant by this, but the CT definitely doesn't have the interface currently used by the semi - and Tesla hasn't said anything about 1 MW peak charging on the CT. Ironically, the CT can barely do 250 KW/h at a Tesla SC, while it can hit 330 KW/h at an EA charger.

I would treat everything in that article as out of date speculation.

Sponsored