However, I suspect a big part of the reason why this flurry of announcements is happening now is that Tesla is upgrading their superchargers to be able to speak the CCS protocol over NACS.
Hmmm, we need a good name for the older Tesla plugs that aren't NACS compliant. When I said "current NACS", that's what I was referring to. I should have been more explicit.
Tesla vehicles built before ~2020 do not and can not speak CCS without a retrofit.
Yeah, October 2020 is the time they started adding CCS compatible ECU. Surprised it's not a software update, it's just a new protocol. Is there a voltage difference? Or is the ECU 3rd party?
At least with Tesla's exponential sales the number of people it affects will be smaller. 1 million out of 4 million I think
Yeah, there's a different controller inside the charge port. From what I've seen, it isn't a difficult upgrade and the part is unrestricted.
I've been estimating the % of affected cars as ~20% at this point and the % that is capable is steadily increasing.
Still an annoyance if you have one of the vehicles without support, but they are no worse off than before. The supercharger network has roughly doubled since then too.
> Older Tesla's require a retrofit to support CCS1.
This is needed because CCS1 requires special communication circuitry for the control data. All Teslas can speak CCS protocols.
The initial Supercharger support used different protocols. They were simple CAN-based, without any metering or billing. In fact, supercharging support was gated by a flag on the car's side.
However, I suspect a big part of the reason why this flurry of announcements is happening now is that Tesla is upgrading their superchargers to be able to speak the CCS protocol over NACS.