sotek2345
Well-known member
- First Name
- Tom
- Joined
- Jun 7, 2021
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- Location
- Upstate NY
- Vehicles
- 2022 Lightning Lariat ER, 2021 Mach-e GT
- Occupation
- Engineering Manager
Agreed on the technical side.I don't think anyone (even Ford) knows for sure what the long outcome will be. I'd bet that Tesla is hoping the long-term outcome will be the dominance of NACS as a de-facto standard.
The one thing that we do know for sure is that existing Ford EV owners will be able to get a NACS to CCS adapter and software updates that allow it to work with FordPass and Tesla Superchargers. Given the way NACS works, my guess is that this adapter will only work for DC fast charging at Supercharger stations. AC charging will be via the J1772 receptacle only (if you need to charge from a Tesla Level 2 EVSE, there are existing NACS to J1772 adapters for that).
If it is possible to make a NACS to CCS adapter, then it is also possible to build that adapter directly into the vehicle, wired in parallel with the existing CCS plug. If this is the case, it would have the same limitation (no support for NACS AC charging) as the adapter solution. I suspect purely from a we-need-to-get-this-out-the-door engineering perspective that this may be the initial solution. It'll mean a larger charge door (or as someone said, CCS on one side and NACS on the other), but it should be dead simple from an engineering perspective and relatively inexpensive.
It would only be a little more complicated to add a switch so that the NACS plug connects to either the J1772 AC lines or the CCS DC lines depending on what kind of charge the NACS charger is sending. This would allow the CCS and NACS plugs to be used interchangeably. If I were in charge of the program, this would be the initial solution that I aim for.
Long term is a bit more murky, and there are a couple of competing ideas:
- There is some push to have vehicle-to-grid capability for near-future EVs, and Ford has reported considerable interest in vehicle-to-home capabilities. Tthere are standards for this in the works on the CCS side, but I believe that Tesla lags on V2G and V2H capability (I don't know if this is because NACS makes it more difficult, or because Tesla would rather sell more PowerWalls). While Ford's current Whole Home Backup doesn't follow the CCS V2H standards, it is possible that future Ford EVs might retain the CCS plug so that they can provide V2H and V2G capability.
- On the other hand, if other EV makers (and EV charging providers) get on the NACS bandwagon, it is quite possible that NACS will become the de-facto North American standard -- and in this case, CCS might go the way of CHAdeMO and the dodo.
How about this - make the extra port an option for future models. It involves extra hardware on the vehicle, so I have no issues paying for it.
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